MAINTENANCE MANUAL Differential axles Tandem MT 46-145 MT 50-168 Edition october/11
Index 1 - Exploded Views.................................................................................................... 04 2 - Introduction........................................................................................................... 08 3 - Removal and Disassembly................................................................................... 11 4 - Prepare Parts for Reassembly............................................................................. 28 5 - Assembly and Installation.
Notes About This Manual This manual provides maintenance and service information for theMeritor forward tandem drive axles, including the RT-140; -144; -145; -149; -160; -169; RZ-166; -186 and -188 Series models. Before You Begin 1. Read and understand all instructions and procedures before you begin to service components 2. Read and observe all Warning and Caution hazard alert messages in this publication.
Exploded Views INPUT WITH OIL PUMP PARTS STANDARD DIFFERENTIAL WITHOUT DIFFERENTIAL LOCK AND WITHOUT OIL PUMP LEFT.
Exploded Views Single Reduction Forward Differential Ensemble ITEM Description ITEM Description 01 01A 02 03 04 05 06 06A 07 08 09 10 11 12 13 14 15 16 17 18 19 Nut - Input Fork Washer - Input Fork Input Fork Deflector Capscrew - Cage-to-Differential Input Shaft Bearings Washer - Cage-to-Differential Input Shaft Bearings Oil Seal - Triple-Lip (Main) Seal POSE™ Seal Input Bearing Cage Shims O-Ring - Input Bearing Cage Bearing Cup - Input Shaft Bearing Cone - Input Shaft Oil Baffle (Units Without O
Exploded Views ITEM Description ITEM Description 65 Nut — Ring Gear (145 and 160 Series) Sensor Switch — Main Differential Lock Locknut Main Differential Lock Sensor Switch (Old Design) Spring — Main Differential Lock Spring — Main Differential Lock — Current Designl Lock Pin — Spring Retaining (Old Design) Shift Shaft — Main Differential Lock Shift Shaft — Main Differential Lock — Current Design Piston — Main Differential Lock Piston — Main Differential Lock — Current Design O-Ring — Piston O-Ring
Exploded Views RIGHT.
Introduction Introduction Axle Models Covered in This Manual Description Tandem Models Forward Tandem Axle The inter axle differential (IAD) is located behind the helical gear on the input shaft. The forward side gear of the inter axle differential is part of the upper helical gear hub. The thru shaft is splined to the rear side gear of the inter axle differential. Figure 2.1.
Introduction • When the collar splines engage with the splines on the differential case, the axle shaft and the differential assembly lock together. • When the differential operates with the DCDL in the locked position, there is no differential action between the wheels • When the differential is operated in the unlocked position, there is normal differential action between the wheels at all times Identification Model An identification tag is riveted on the axle housing or on the differential. Figure 2.
Introduction Refer to Figure 2.4 for an explanation of the model axle. INFORMATION OF IDENTICATION THE MODEL AXLE AN THE IDENTIFICATION TAG MD - 23 - 160 Axle Design Variation: Indicates axle design level or variation, (e.g., RS-23161 has a thicker wall housing than RS-23-160). Meritor Differential Type: Differential size. Larger numbers indicate a higher GCW rated differential; this is, larger ring gear, etc Gearing Type: 1 = Single Speed Nominal Axle Load Rating (GAWR): In thousands of pounds.
Removal and Disassembly Hazard Alert Messages Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both. OIL FILTER ADAPTER OIL FILTER WARNING To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service. Use a brass or synthetic mallet for assembly and disassembly procedures. Do not hit steel parts with a steel hammer.
Removal and Disassembly 8. Disconnect the driveline universal joint from the pinion input yoke or flange on the differential. Figure 3.2. Figure 3.2 9. Remove the capscrews and washers or stud nuts and washers, if equipped, from the flanges of both axle shafts 10. Loosen the tapered dowels, if equipped, in the axle flanges of both axle shafts using one of the following methods: EASY SERVICE™ Brass Pin Method WARNING Do not strike the round driving lugs on the flange of an axle shaft.
Removal and Disassembly 5. Install a cover over the open end of each axle assembly hub where an axle shaft was removed. Output Shaft Removal 1. Disconnect the forward and rear drive shafts. CAUTION Air Hammer Vibration Method WARNING Wear safe eye protection when using an air hammer. When using power tools, axle components can loosen and break off causing serious personal injury. CAUTION Do not use a chisel or wedge to loosen the axle shaft and tapered dowels.
Removal and Disassembly REMOVING THE FLANGE Removal differential assembly from the Axle Housing 1. Place a hydraulic jack under the differential assembly to support the assembly. Figure 3.9. TOP TWO FASTENERS REMOVING THE YOKE Figure 3.7 5. Remove the output shaft bearing cage capscrews and washers. 6. Pull the bearing cage, bearings and shaft assembly from the axle housing. If necessary, loosen the cage from the housing with a soft mallet. Figure 3.
Removal and Disassembly Disasssembly Output Shaft and Bearing Cage Assembly CAUTION When using a pry bar, be careful not to damage the differential or housing flange. Damage to these surfaces will cause oil leaks. 6. Use the hydraulic jack to remove the differential from the axle housing. Use lever that has a round end to help remove the differential from the housing. 7.
Removal and Disassembly NOTE: When you press the output shaft from the cage, the bearing cup remains in the cage. The outer cup is removed with the thru-shaft and the cones. PRESS USED BEARING CUP 4. If necessary, remove the output shaft and the bearing cones as an assembly from the output bearing cage. A. Place the output shaft and the output bearing cage in a press. Figure 3.13. PRESS Figure 3.14 Figure 3.13 B. Press the output shaft and cones bearing cage. C.
Removal and Disassembly 3. Press the output shaft through the bearing cones. Discard the used bearing cones. Bearing Puller Method 1. Place a used bearing cup on the inner bearing cone. 2. Install a bearing puller tool over the output shaft. Figure 3.15. The bearing cup supports the output shaft Measure Ring Gear Backlash Before the differential be disassembled, use a dial indicator to measure and record ring gear backlash at three locations on the ring gear.
Removal and Disassembly PINION COVER Figure 3.21 Figure 3.18 3. Use the correct tool to hold the fork or flange of the input shaft. Loosen, but do not remove, the drive pinion nut. Figure 3.19. 6. Rotate the differential in the support until the fork or flange get back to you.Connect a lifting device to the input fork. NOTE: Paint alignment marks on the helical drive gear and the helical driven gear before you remove the input shaft from the differential.
Removal and Disassembly A. Lift the input shaft assembly until the bearing cage is separated from the differential assembly. If necessary, tap on the bearing cage with a brass or plastic mallet to separate the cage of differential. Figure 3.22. INTER-AXLE DIFFERENTIAL CASE Notches on the case must be aligned over the helical driven gear HELICAL DRIVEN GEAR Figure 3.24 9. Remove the shims from between the bearing cage and the cage of differential. 10.
Removal and Disassembly PRESS Figure 3.28 Figure 3.26 1 12. Use a brass drift and hammer to remove the cup of the rear side gear cone from the cage of differential. Disassembly of Input Shaft, Bearing Cage, Oil Pump and Inter-Axle Differential 1. Use the correct tool to remove the fork or flange from the input shaft. Figure 3.27. If the differential assembly is not equipped with an oil pump, remove the bearing cage from the input shaft. Figure 3.28.
Removal and Disassembly 3. Remove the snap ring that fastens the interaxle differential assembly to the input shaft. Remove the inter-axle differential assembly fron the input shaft. Figure 3.30. RT-160 Figure 3.32 CAGE ASSEMBLY AND KERNEL INTER-AXLE DIFFERENTIAL CAUTION Figure 3.30 NOTE: Disassemble the bolted inter-axle differential and inspect the components. The welded inter-axle differential is serviced as an assembly and cannot be disassembled. 4. Disassemble the bolted inter-axle differential.
Removal and Disassembly B. Place the assembly on a press so that extraction tool it rests on the differential. Figure 3.34. 7. Remove the O-rings from the bearing cage of the input shaft and, if used, the oil pump assembly 8. Remove the cone from the input bearing cage. PRESS PROTECTOR BEARING CAGE OIL PUMP EXTRACTION TOLL Figure 3.34 C. Place a protector on top of the input shaft. Remove the input shaft from the assembly. Remove the extraction tool. Figure 3.34. D.
Removal and Disassembly Removal Inter-Axle Differential Lock IAD Shift Unit Air Applied and Spring Release Models, Standard. 1. Remove the cylinder. A. For flange-type cylinders, remove the capscrews that fasten the cylinder to the cage off differential . Remove the cylinder. B. For threaded cylinders, remove the cylinder.
Removal and Disassembly Removal Driver-Controlled Main Differential Lock system (DCDL) If the axle is equipped with a driver-controlled main differential lock, see to Section 6 for removal procedures. Removal the Main Differential Case and Ring Gear Assembly 1. Rotate the differential until the ring gear is toward you. 2. Use a punch and hammer to mark the position of each bearing cap. The marks help you correctly match the bearing cap during reassembly. Figure 3.41.
Removal and Disassembly 7. Use an appropriate lifting device to remove the main differential case and ring gear assembly from the cage of differential. Figure 3.45. Figure 3.45 NOTE: If you replace either the bearing cup or the cone, replace both parts in a fully-matched set from the same manufacturer. The bearing cones are not interchangeable. 8. If the bearing cones on the main differential case need to be replaced, use a bearing extractor to remove the cones. Figure 3.46.
Removal and Disassembly Removal Ring Gear from the Differential Case PRESS PLATE NOTE: If ring gear needs replaced use the following procedure: 1. For 145 and 160 Series axles, remove the capscrews, washers and nuts that fasten the ring gear from the differential case. CAUTION Do not remove the rivets or the rivet heads with a chisel and hammer. A chisel and hammer can damage the differential case. 2. For 140 Series axles, remove the rivets that fasten the ring gear to the differential case. A.
Removal and Disassembly 2. Remove the drive pinion from the Cage of differential. A. Place the differential carrier into a press so that the threaded end of the drive pinion is facing UP. Place supports under the differential mounting flange. B. Place a protector onto the top of the drive pinion shaft. Figure 3.52. 3. If necessary, remove the inner and the outer bearing cups from the cage of differential. Use a hammer and drift to remove the cups from the Cage of differential.
Prepare Parts for Reassembly Hazard Alert Messages Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both. WARNING To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service. Solvent cleaners can be flammable, poisonous and cause burns.
Prepare Parts for Reassembly Clean Ground and Polished Parts 1. Use a cleaning solvent, kerosene or diesel fuel to clean ground or polished parts or surfaces. Do not use gasoline. 2. Use a tool with a flat blade if required, to remove sealant material from parts. Be careful not to damage the polished or smooth surfaces. CAUTION Do not use hot solution tanks or water and alkaline solutions to clean ground or polished parts. Damage to parts can result. 3.
Prepare Parts for Reassembly WERN RADIUS ETCHING AND PITTING Figure 4.5 WERN SURFACE Figure 4.2 SPALLING AND FLAKING WEAR GROOVES CRACK Figure 4.6 Figure 4.3 Caution A drive pinion and ring gear are machined as a matched set. When you replace either a drive pinion or a ring gear, you must replace both parts as a matched set. Do not mix old and new parts. Damage to components can result. 2. Inspect hypoid pinions and gears for wear and damage.Replace gears that are worn or damaged.
Prepare Parts for Reassembly Caution A thrust washer, differential side gear and pinion gear are machined as a matched set. When you replace any of these parts, you must install a new matched set. Do not mix old and new parts. Damage to components can result. 3. Inspect the following main differential assembly parts for wear or stress. Replace parts that are damaged. Figure 4.7.
Prepare Parts for Reassembly Welding on Axle Housings WARNING Wear safe clothing and eye protection when you use welding equipment. Welding equipment can burn you and cause serious personal injury. Follow the operating instructions and safety procedures recommended by the welding equipment manufacturer. Axle weld locations and welding procedures must adhere to Meritor standards. Welding at locations other than those authorized by Meritor will void the warranty and can reduce axle beam fatigue life.
Prepare Parts for Reassembly 9. For complete welding instructions, refer to Maintenance Manual 8, Drive Axle Housings. To obtain this publication, see to the Service Notes page on the brgin this manual. Do Not Bend or Straighten a Damaged Drive Axle Housing WARNING Replace damaged or out-of specification axle components. Do not bend, repair or recondition axle components by welding or heat-treating. A bent axle beam reduces axle strength, affects vehicle operation and voids Meritor’s warranty.
Prepare Parts for Reassembly 1. Clean the oil and dirt from the outer diameters of the bearing cups and bearing bores in the differential and bearing caps. There is no special cleaning required. 2. Apply axle lubricant to the bearing cones and the inner diameters of the bearing cups of the main differential. Do not get oil on the outer diameter of the bearing cup and do not permit oil to drip for the bearing bores. 2. Remove all debris from inside the housing. 3.
Prepare Parts for Reassembly CAUTION Apply silicone gasket material in a continuous 0.25 inch (6 mm) bead. If you use more than this amount, gasket material can break off and plug lubrication passages. Damage to components can result. LOCTITE® 242 THREADLOCKER APPLICATION 360˚ LOCTITE® BEAD 10. Apply a 0.25 inch (6 mm) bead of Loctite® 5699 silicone gasket material to the housing face. Do not use ThreeBond1216E silicone products. Figure 4.12. DIAMETER SILICONE GASKET BEAD 0,25” (6MM Figure 4.12 11.
Prepare Parts for Reassembly Table C: Gear Set Match Number ALTERNATE LOCATIONS Figure 4.
Prepare Parts for Reassembly Hypoid Gear Set Ratios Listed on the Identification Tags 1. Locate the identification tags riveted to the forward and rear of differential. Figure 4.15. 1. Park the vehicle on a level surface. 2. Engage the power divider and shift the transmission into NEUTRAL. 3. Block the wheels to prevent the vehicle from moving. 4. Use a jack to raise the vehicle until all the tandem drive axle wheels clear the ground. Support the vehicle with safety stands. 5.
Prepare Parts for Reassembly • If the positions of the tire marks are more than3.6 degrees from each other: Check to the vehicle manufacturer for further information. 3. Calculate the hypoid gear set ratio by dividing the larger number by the smaller number. Figure 4.19. If the mark appears in the shaded area, the tandem gear set is incorrectly matched. LARGER NUMBER SMALLER NUMBER If the mark appears in this area, the tandem axle gear set is correctly matched. Figure 4.18 8.
Prepare Parts for Reassembly • If the axle ratios shown on the identification tags are not within one percent of each other: See the vehiclemanufacturer for further information. 2. Install the inter-axle driveshaft. Refer to the vehicle manufacturer’s procedures. 3. Install the pinion cover. See the vehicle manufacturer’s procedures. 4. Remove the safety stands and lower the vehicle.
Prepare Parts for Reassembly 2. Use a correct yoke installation tool to install the yoke. 3. As you install the fork, you should detect resistance between the fork and shaft. • If you do not detect resistance between the fork and shaft: Replace the fork. 4. Install and tighten the input, output or pinion shaft nut to the correct torque. See Section 8. 5. Install the driveline. 6. Remove the safety stands. 7. Lower the vehicle.
Assembly and Installation Hazard Alert Messages Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both. WARNING To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service. Note all warnings and cautions provided by the press manufacturer to avoid damage to components and serious personal injury.
Assembly and Installation 3. If you can’t find the PC number or it’s unreadable, install a new shim pack of the same thickness that you measured in Step 1. TABLE F Exemplos NOTE: The following calculation is the opposite for a rear differential, forward tandem or single. 4. If the old pinion cone variation number of a front tandem differential is a plus (+), ADD the cone variation number to the old shim pack thickness that was measured in Step 1. 5.
Assembly and Installation The preload of the bearings on the drive pinion is controlled by a spacer between the outer bearing cone and the helical driven gear. Adjust the preload by changing the size of the spacer. • To decrease the preload, use a thicker spacer. • To increase the preload, use a thinner spacer. • If the depth of the drive pinion is changed, the thickness of the spacer must also be changed the same amount. See the following examples. • If a 0.003 inch (0.
Assembly and Installation Installation Drive Pinion Assembly PRESS Bearing caps Figure 5.7 5. If removed, install the outer bearing cap for the drive pinion. A. Place the differential caser in the press so that the bearing caps of the differential stay toward the bottom of the press. Place supports under the differential case, so that the differential is level. B. Place the outer bearing cap for the drive pinion into the bore of the differential case. C.
Assembly and Installation SPACER- AVAILABLE IN DIFERENT SIZES TO ADJUST PRELOAD. OUTER BEARING ASSEMBLY SPACER - ONLY AVAILABLE IN ONE SIZE. 3. Turn the differential case so that the bearing caps of the differential case are UP. Place supports under the differential case so that the case is level. 4. Place the helical driven gear over the pinion bore in the differential case so that the splines inside the gear are toward the front of the differential case.
Assembly and Installation 6. Place a protector in the head of the drive pinion. Use a press to install the pinion into the differential case so that the inner bearing cone touches the bearing cap. At this time, the helical driven gear will not be completely installed on the drive pinion. Figure 5.12. 7. Place the differential case in the press so that the threaded end of the pinion is toward the TOP. Place supports under the flange of the differential case so that the case is level.
Assembly and Installation 14. Use a press and a sleeve to press the shaft of the drive pinion out of the outer bearing cone. Do not press the shaft of the drive pinion out of the helical driven gear. 15. Remove the outer bearing cone and the two pieces of lead or solder from the outer bearing cone. 16. Use a micrometer to measure the thicknesses of the compressed pieces of lead or solder. Add the measurements of the two pieces and divide by two (2) to determine the average size of the pieces. Add 0.
Assembly and Installation 22. Install the washer and the nut the drive pinion. Prevent the drive pinion assembly from rotating by using of device or tool to hold the teeth of the helical driven gear or place wood blocks between the head of the pinion and the differential case wall. Tighten the nut to the specified torque. See Section 8. Remove the holding tool or the wood blocks. 23. Use an inch-pound torque wrench or a spring scale to inspect the preload of the bearings on the drive pinion.
Assembly and Installation 4. Measure the outer diameter of the washer under the drive pinion. Divide the outer diameter of the washer by two (2) to get the radius of the washer. Multiply the radius of the washer by the reading on the spring scale to get the preload on the pinion bearings Example Outer diameter of the washer = 3.00 inches (76.20 mm) scale reading = 9 lbs (4 kg) (mm) Pol. Outer diameter of the washer (76,20) 3,00 Divide the outer diameter by two (2) to get the radius of the washer (38.
Assembly and Installation 1. Expand the ring gear by heating the gear in a tank of water to 160-180°F (71-82°C) for 10 to 15 minutes. WARNING Wear safe clothing and gloves for protection from injury when working with the hot ring gear. 2. Use a lifting tool to safely lift the ring gear from the tank of water. 3. Install the ring gear onto the flange case half immediately after the gear is heated. • If the ring gear does not fit easily on the case half, heat the gear again. 4.
Assembly and Installation 9. Apply axle oil lubricant on the inside surfaces of both case halves, spider or cross, thrust washers, side gears and differential pinions. 10. Place the flange case half in a bench with the ring gear teeth toward the TOP. 13. Install the second side gear and thrust washer over the spider and differential pinions. Figure 5.24. Caution THRUST WASHER The side gears in some differential models have hubs of different lengths.
Assembly and Installation A. Install four capscrews and washers or bolts, nuts and washers into the case halves. The distance between the fasteners must be equal. Tighten the fasteners to the correct torque value in a crisscross pattern opposite each other. See the Section 8. Figure 5.26. CRISSCROSS TIGHTENING PATTERN 2. Place the case halves ensembly and ring gear into a vise. Install soft metal covers over the vise jaws to protect the ring gear. Figure 5.28.
Assembly and Installation Installation Case Halves and Ring Gear In the Differential ADHESIVE 1. If the bearing cones on the main differential case were removed, install a new cone and cap in a fully-matched set from the same manufacturer. The bearing cones are not interchangeable. Use a press and sleeve to install the cones in the case. Press only on the inner race of the bearing. Figure 5.30. DIFFERENTIAL CASE PRESS BEARING CONE BEARING CAP Figure 5.
Assembly and Installation CAUTION The bearing caps must be correctly installed or the adjusting rings will be damaged by cross-threading. Forcing the caps into position can damage the caps and the differential case. 8. Install the bearing caps over the bearings and adjusting rings in the correct location as marked before removal. Figure5.34 BEARING CAP • If the bearing caps do not correctly fit in the position, check the alignment of the match marks between the caps and differential case.
Assembly and Installation Adjustment Main Differential Case Bearings Preload T-BAR WRENCH Use either the dial indicator or the large micrometer method to inspect and adjust the main differential side bearings preload. NOTE: The roll pins for the adjusting rings are installed after the tooth contact pattern is checked. Dial Indicator Method 1. Attach a dial indicator in the differential case mounting flange so that the plunger or the pointer is against the back surface of the ring gear. Figure 5.35.
Assembly and Installation MICROMETER BARS MUST NOT TOUCH BEARING Figure 5.38 Figure 5.41 KEY “T” CAUTION SQUEEZE EACH RING IN A GROOVE Figure 5.39 6. Proceed to check ring gear runout. Large Micrometer Method 1. Hand-tighten the adjusting rings against the main differential bearings. 2. Use a large micrometer to measure distance X and Y between the opposite surfaces of the bearing caps. Record the measurement. Figure 5.40 and Figure 5.41.
Assembly and Installation 5. If the difference is at or within the specification in Table I: Continue by checking the runout. • If the difference is less than the specification: Repeat as needed. Table I: Expansion Between Bearing Caps Differential models RS-140, RS-145 e RS-160 RS 120 and all other differential models 0.050-0.229 mm (0,002-0,009”) 0.15-0.
Assembly and Installation • To increase the backlash, move the ring gear away from the drive pinion. Figure 5.45. • To decrease the backlash, move the ring gear toward the drive pinion. Figure 5.46. MEASURE OUTER DIAMETER FOR APPROXIMATE PITCH DIAMETER TIGHTEN ADJUSTING RING THIS SIDE Figure 5.43 After checking the tooth contact patterns, the backlash can be adjusted within the specification limits, if needed. To change the location of the pattern, use the following procedures. 1.
Assembly and Installation PART NUMBER PART NUMBER PART NUMBER OPTION Figure 5.47 Examples The following are part numbers for generoid gear sets. • 36786-K or 36786-K2 for the ring gear • 36787-K or 36787-K2 for the drive pinion In the following procedures, movement of the contact pattern along the length of the tooth is indicated as toward the heel or toe of the ring gear. Figure 5.48. TALÓN DRIVE SIDE CONVEX Figure 5.49 1. Adjust the backlash of a new gear set to either 0.012-inch (0.305 mm) or 0.
Assembly and Installation 4. Look at the contact patterns on the ring gear teeth. Compare the patterns to Figure 5.51, Figure 5.52 and Figure 5.53. The location of a good hand-rolled contact pattern for a new gear set is toward the toe of the gear tooth and in the center between the top and bottom of the tooth When the differential is operated, a good pattern will extend approximately the full length of the gear tooth. The top of the pattern will be near the top of the gear tooth. Figure5.54.
Assembly and Installation 5. Change the thickness of the shim pack between the pinion inner bearing cap and the differential case to move the contact patterns between the top and the bottom of the gear teeth. A. Remove the drive pinion, inner bearing cap and shims from the differential case. See the Section 3. • To correct a high-contact pattern: Increase the thickness of the shim pack. When you increase the thickness of the shim pack, the drive pinion will move toward the ring gear. Figure 5.55.
Assembly and Installation If the differential has cotter pins or capscrews, lock the adjusting rings only with cotter pins or capscrews. If the differential has roll pins, reuse the roll pins. Do not force a roll pin into a cotter pin hole. Damage to components can result. 7. Install the capscrews, cotter pins, roll pins or lock plates, if equipped, that hold the two bearing adjusting rings in position. Use the following procedures. A.
Assembly and Installation 5. Tighten the jam nut, if equipped, to the correct torque value against the differential case. See the Section 8. Figure 5.62. To complete the assembly of axles equipped with driver-controlled main differential locks, see the Section 6. REAR DIFFERENTIAL EXAMPLE TIGHTEN JAM NUT TO CORRECT TORQUE VALVE. HOLD THRUST SCREW IN POSITION. Figure 5.62 Air Shift Unit for the Inter-Axle Differential Lock (IAD) Air Applied and Spring Release Models, Standard 1.
Assembly and Installation 2. Inspect the shift shaft for damage. If necessary, replace the shift shaft. 3. If removed, install new O-rings in the groove in the shift shaft, into the groove in the shift cylinder and onto the piston. 4. Lubricate the bore of the shift cylinder with axle lubricant. 5. Install the piston in the shift cylinder. 6. Insert the shift shaft in the piston and shift cylinder assembly. 7. Install the small snap ring that fastens the piston in the shift shaft. 8.
Assembly and Installation A. Apply axle lubricant to the inner bore of the bearing cage or the outer diameter of the new oil seal. CAUTION Hold the seal only on the outer diameter. Do not touch the lips in the inner diameter of the seal. If you touch the lips on the inner diameter of the seal, you will contaminate the lips and could cause a leak between the shaft and the seal. B. Place the oil seal into the bearing cage so that the flange is parallel to the top of the cage. C.
Assembly and Installation CAUTION On early design forward differential , verify that the drive flats in the bore of the pump are aligned with the flats on the input shaft. If the flats are not aligned, the pump will be damaged. NOTE: If you replace either the bearing cap or cone, replace both parts in a fullymatched set from the same manufacturer. 5. On differential that use an oil pump, install the input bearing cage and oil pump. A.
Assembly and Installation E. Install the input bearing cage over the input shaft on the oil pump. • If dowel pins are used, verify that the dowel pins in the cage are aligned with the holes in the oil pump. F. Install the capscrews that fasten the oil pump to the input bearing cage. Tighten the . capscrews to 22-23 lb-ft (30-31 N.m). G. Install the O-rings onto the oil pump and input bearing cage. 6.
Assembly and Installation 10. If disassembled, assemble the inter-axle differential. A. Apply axle lubricant to all of the inter-axle differential parts. B. Install the pinion gears and the thrust washers in the spider. C. Place the spider and pinion assembly in one of the case halves of the inter-axle differential. D. Install the remaining case half over the first case half. Verify that the marks on each case half are aligned. E. Install four of the capscrews that fasten the case halves together.
Assembly and Installation NOTE: The shim pack under the input bearing cage is installed after the clearanceof the input bearing is inspected and adjusted 1. Place the differential case in the repair stand so that the ring gear is facing DOWN. 2 If necessary, place the clutch collar into the differential case so that the teeth on the outside of the collar are toward the input fork. Install the clutch collar in the shift fork so the tabs of the fork fit in the slot of the clutch collar. 3.
Assembly and Installation Inspection and Adjust the clearance of the bearing assembly input shaft 1.Install the capscrews, but not the washers, that fasten the input shaft bearing cage to the differential case. Rotate the input shaft in each direction to verify that the bearings are correctly installed while you hand-tighten the capscrews. Do not tighten the capscrews. 2. Use a feeler gauge to measure the gap between the input shaft bearing cage and the differential case.
Assembly and Installation 9. Inspect the clearance operation of the input shaft assembly. A. Rotate the input shaft in each direction and push the fork or flange toward the bearing cage. This ensures that the input shaft assembly in differential. B. Use a dial indicator with a magnetic base or a clamp base to inspect the clearance of the input bearing. Verify that the pointer of the dial indicator is against the top of the input shaft. Set the dial indicator to ZERO. Figure 5.85. DIAL INDICATOR 11.
Assembly and Installation Installation Driver-Controlled Main Differential Lock See the Section 6 for installation procedures. Installation of the output shaft and bearings. 1. Apply axle lubricant to bearing caps and cones. Figure 5.88. 3. Use a press and sleeve to install the inner bearing cap into the bearing cage. Place the output shaft and bearing assembly into the cage. 4. Use a press and sleeve to install the outer bearing cap into the cage over the output shaft. Figure.
Assembly and Installation Inspection Adjust of the clearance of the Output shaft Bearings The clearance the output shaft bearing is controlled by the size of the snap ring that holds the bearings in the bearing cage. The snap rings are available in increments of 0.003-inch (0.076 mm). Install the snap ring which results in an clearance of 0.001-0.004-inch (0.025-0.102 mm). 1. Place the output shaft and the bearing cage assembly into a vise with soft metal covers on the jaws of the vise. 2.
Assembly and Installation CAUTION CAUTION Inspect the axle breather for contaminants, such as dirt, lubrication or debris, which can cause pressure to build inside the axle. Damage to the seal and premature seal lip wear can result. Remove the axle breather. Use a safe cleaning solvent to clean the inside and outside of the breather. 3. Inspect the axle breather for contaminants, such as dirt, lubrication or debris. • If you find contaminants in the axle breather, remove the axle breather.
Assembly and Installation 6. Position the installation tool and seal. Figure 5.95. • If you use the R4422401 tool to install a forward tandem axle seal, the tool outer spokes or fins must fit between the bearing cage bolts. Ensure that the bolts on the bottom of the bearing cage are not in the path of the spokes. • If the spokes contact the bearing cage bolts, the will incorrectly install the seal in the bearing cage seat and can also result in damage to the tool.
Assembly and Installation NOTE: The unitized seal features a rubber inner sleeve that is designed to seal and rotate with the fork. This feature allows you to reuse a fork with minor grooves. 2. Inspect the fork seal surface for grooves • If you find grooves on the fork, use calibrators to measure the groove diameters. If any groove diameter measures less than the dimensions shown in Figure 5.97, replace the fork. CAUTION Do not install a POSE™ seal after you install a unitized pinion seal.
Assembly and Installation Tight Fit Forks and POSE™ Seal . 1. Apply axle lubricant to the hub of the fork or flange. Figure 5.98. LUBRICATE TRIPLE-LIP OR MAIN SEAL 4. Before install the fork or flange in the shaft, apply axle lubricant to the hub. NOTE: The POSE™ seal will position itself correctly as the fork or flange is pressed on the shaft. 5. nstall the fork or flange using the correct procedure. The fork must be completely seated before you tighten the pinion nut to the input shaft.
Assembly and Installation Output Flange fork or Oil Sealer Box Output Shaft Bearings. PRESS FLAT METAL PLATE CAUTION Hold the seal only on the outer diameter. Do not touch the lips in the inner diameter of the seal. If you touch the lips on the inner diameter of the seal, you will contaminate the lips and cause a leak between the shaft and the seal. Do not apply pressure after the flange of the seal touches the top of the cage or you will damage the seal. 1. Prepare the seal for installation. A.
Assembly and Installation Caution Use a press and a sleeve or fork installation tool to install the fork. Do not use a hammer or mallet. Using a hammer or mallet can damage the bearings, fork or flange. If a fork is removed after it has been partially or fully installed, the unitized pinion seal will be damaged. Remove and discard the original unitized pinion seal and replace it with a new one.
Assembly and Installation 6. On an axle with a driver-controlled main differential lock, shift the lock into and hold the lock in the locked or engaged position. The locked position provides enough clearance between the shift collar and the axle housing for differential installation. See to Section 6. 7. Use a hydraulic roller jack or a lifting tool to install the differential in the axle housing. Figure 5.103.
Assembly and Installation 14. Adjust the shift fork for the inter-axle differential lock. The movement of the shift fork is controlled by the adjusting screw of the locking mechanism. A. Loosen the jam nut on the adjusting screw. Loosen the adjusting screw so that the screw does not touch the shift of the drive mechanism. Figure 5.106. LOOSEN THE JAM NUT AND ADJUSTING SCREW. TIGHTEN THE ADJUSTING SCREW ONE TURN AFTER THE SCREW TOUCHES THE END OF THE SHOFT. APPLY 60 PSI (413 kpa) OF AIR PRESSURE HERE.
Assembly and Installation 18. If removed, install the oil filter adapter of the differential housing. Use Meritor adhesive number 2297-T-4180, or equivalent. See the Section 4. Tighten the adapter to . 40-60 lb-ft (55-80 Nm). Figure 5.108. CAUTION If the oil filter is tightened more than 3/4 of a turn after it contacts the differential, the oil filter will be damaged and leak fluid. Damage to components can result. 19. Apply axle lubricant to the gasket of the new oil filter.
Assembly and Installation 5. If the axle shaft flange have cylindrical hole for screw mounting, install the screws and washers in the holes. Figure 5.109. Tighten the screws to the correct torque value. See the Section 8. 6. Position the gasket between the output shaft bearing cage and the axle housing. 7. Install the output shaft and bearing cage assembly in the axle housing. Rotate the output shaft to align the splines with the splines of the rear side gear. 8. Clean the cage to housing bearing screws.
Assembly and Installation Cylindrical Holes, Nuts and Washers 1. Clean the mounting surfaces of the axle shaft and wheel hub. 2. If silicone gasket material is used, apply a 0.125inch (3 mm) diameter bead of the gasket material around the mounting surface of the hub and around the edge of each fastener hole. 3. Install the gaskets and axle shafts in the axle housing and differential. The gasket and flange of the axle shafts must fit flat against the wheel hub. Figure 5.109. 4.
Assembly and Installation Table M: Shaft-to-Hub Torque Fastener Chart — Tapered Washer Applications Torque Value - Grade 8 Nuts lb-ft (Nm) Fastener Thread Size Tuerca del Espárrago o 0,62 - 18 Semieje 0,75 - 16 STUDS Plain Nut LOCKNUT 203-312 (150-230) 176-258 (130-190) 420-542 (310-400) 366-475 (270-350) Install the coarse thread end of the stud He hub and thighten to the last thread ALL Fill the Axle with Lubricant NOTE: For additional lubrication information, See the Maintenance Manual 1, Lu
Driver-Controlled Main Differential Lock Hazard Alert Messages Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both. WARNING To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service. Description Some Meritor drive axle models have a drivercontrolled main differential lock (DCDL).
Driver-Controlled Main Differential Lock Engagement or Lockout of the DCDL WARNING During DCDL disassembly or differential removal, when the DCDL is in the locked or engaged position and one of the vehicle’s wheels is raised from the floor, do not start the engine and engage the transmission. The vehicle can move and cause serious personal injury. Damage to components can result. Park the vehicle on a level surface. Block the wheels to prevent the vehicle from moving.
Driver-Controlled Main Differential Lock 10.Install the manual engaging capscrew into the threaded hole in the center of the cylinder cover or cylinder. WARNING There will be a small amount of spring resistance felt when you turn in the manual engaging capscrew. If a high resistance is felt before reaching the locked or engaged position, stop turning the capscrew, or the cover, fork and capscrew threads will be damaged. 88 2.Use a jack to raise the left-hand wheel of the drive axle.
Driver-Controlled Main Differential Lock Differential and Gear Assembly and Main Differential Lock Threaded DCDL Shift Assembly The current design shift fork does not employ roll pins. Nubs on the inner face of the fork hold the shift collar in place. Figure 6.4. 1. Verify that the differential lock is released and the engaging capscrew and seal are removed from the shift cylinder. 2. Tap the shift collar with a rubber mallet to loosen and remove the collar from the shift fork. Figure 6.5. Figure 6.7 5.
Driver-Controlled Main Differential Lock 9. Pull the shift shaft from the fork and out of the differential. Figure 6.10. SHIFT FORK DCDL CASTING FORK Figure 6.10 10. Remove the shift shaft spring and fork from the differential. Figure 6.11. SHIFT SHAFT SPRING Figure 6.12 Further disassembly of these differentials is the same as axles without the driver-controlled main differential lock. To continue disassembly, follow the procedures in Section 3. Fixed capscrew DCDL Shift Assembly 1.
Driver-Controlled Main Differential Lock NOTE: Some models use silastic seal instead of the flat washer in Step E. Also, a roll pin is installed in the shift shaft and is used as a stop for the shift shaft spring. It is not necessary to remove this roll pin during a normal disassembly. E. Remove the shift shaft spring and flat washer. F. Remove the shift fork and continue with Step 11 in the previous procedure. Threaded DCDL Shift Assembly.
Driver-Controlled Main Differential Lock 2. Compress the shift shaft spring as required and install it between the back of the fork and differential wall inside the differential. Figure 6.17. BEVEL END SHIFT SHAFT SPRING SHIFT CYLINDER Figure 6.19 INSTALL SPRING BEHIND FORK Figure 6.17 3. Align the spring and bore in the shift fork with the shift shaft bore in the differential. 4. Install the shift shaft through the bore in the differential, fork and spring until it is against the shift fork.
Driver-Controlled Main Differential Lock LARGE SPLINES OF MAIN DIFFERENTIALCASE 12. With the shift collar in the locked position, install the sensor switch into the threaded hole in the front of the differential. Figure 6.23. NUBS OF SHIFT FORK Figure 6.21 10. Engage the splines of the collar with the splines of the main differential case. Insert the manual engaging capscrew through the top of the shift cylinder to move the shift collar toward the differential case.
Driver-Controlled Main Differential Lock 4. Apply Loctite 222 threadlocker, to the threads of the shift shaft. 5. Install the shift fork into its correct position in the differential case. Figure 6.26. DCDL FIJADO POR TORNILLOS 1 - FLAT WASHER OR SILASTIC AS REQUIRED 2 - CYLINDER 3 - ELECTRIC CONNECTION FOR SENSOR 4 - AIR LINE 5 - O-RING 6 - DISENGAGED 7 - ENGAGED 8 - COPPER GASKET 9 - PIN 10 - PERNO 11 - SHIFT FORK 12 - COLLAR 13 - SHIFT SHAFT AND SPRING Figure 6.24 1.
Driver-Controlled Main Differential Lock VERSIÓN FIJADA POR TORNILLOS CYLINDER COVER AIR CYLINDER CAPSCREW 4-6 LB-FT (5.5-8.5 N•m) PISTON AND O-RING SHIFT SHAFT APPLY SILASTIC SEALANT Install flat washer or apply silastic sealant. Figure 6.28 9. Lubricate the O-ring with axle lubricant. Install the O-ring into its groove on the piston. Carefully install the piston into the air cylinder. Figure 6.28. Do not damage the O-ring. 10.Install the cylinder into the housing bore.
Driver-Controlled Main Differential Lock 16. Connect a volt-ohm meter to the sensor switch. Select ohms on the meter. Rotate the switch CLOCKWISE until the meter reading changes from infinity to less than one ohm. Turn the switch one additional turn and tighten the locknut to 25-35 lb-ft (35-45 Nm). Differential Lock Assembly Cover Plates For differentials without the differential lock or air shift, assemble the sensor switch plug and cover plate as follows.
Driver-Controlled Main Differential Lock 5. Install the differential into the housing. See the Section 5. 6. Install and tighten the differential-to-housing capscrews to the specified torque. 7. Install the right- and left-hand axle shafts. See the Section 5. NOTE: When the manual engaging capscrew is removed from the service position in the center of the DCDL actuator, the main differential lock is disengaged. 8.
Driver-Controlled Main Differential Lock 7. Install the differential as s embl y into the housing. See the Section 5. 8. Install and tighten the differential-to-housing capscrews to the specified torque. 9. Install the right- and left-hand axle shafts See the Section 5. 10. Remove the air line coupling from the main differential actuator assembly. 11.
Lubrification Specifications For complete information on lubricating drive axles and differentials, refer to Maintenance Manual 1, Lubrication. To obtain this publication, refer to the Service Notes page on the front inside cover of this manual. See the Table N, Table O and Table P for information on lubricants, schedules and capacities.
Lubrification Tabela P: Tandem and Tridem Rear Drive Axle Oil Capacities Oil Capacity Axle Model Axle Model Differential RT-34-140 RT-34-145 RT-34-145P RT-40-140 RT-40-145 RT-40-145A RT-40-145P RT-40-149 RT-40-149A RT-40-149P RT-40-160 RT-40-160A RT-40-160P RT-40-169 RT-40-169A RT-40-106P RT-44-145 RT-46-160 RT-46-160A RT-46-106P RT-46-169 RT-46-169A RT-46-169P 100 Pints RT-46-164-EH Liters Forward 26,0 12,3 Rear 35,0 16,6 Forward 29,6 14,0 Rear 25,4 12,0 Forward 29,6 14,0 Rear 25,4 12
Information on Fasteners and its Torques Torque Specifications RADIAL TEETH SIDE(OUTSIDE) Only Models: RT- 40- 160 RT- 40- 169 RT- 46- 160 RT- 46- 164EH RT- 46- 169 RT- 46- 16HEH MAINTENANCE MANUAL CAM SIDE (INSIDE) 101
Information on Fasteners and its Torques Table Q: General Torques Specifications Axle Application Torque Value Ítem Description 1 Output Fork Nut 2 Output Bearing Cage to differential Capscrew ALL 0,38”-16 35-50 47-68 3 Drain and Fill Plugs 1 ALL 0,75”-14 35 Min 47,5 MIn 4 Bearing Caps Capscrew 140 e 145 M30 x 2,5 320-400 430-540 160 M22 x 2,5 480-600 650-810 105-125 143-168 75-95 100-127 220-310 300-420 160-210 220-290 196-262 265-355 Main Differential Case Halves Caps
Information on Fasteners and its Torques Tabela Q: General Torques Specifications (Continuation) Ítem Description Axle Application Size _ Air Line-to-Main Differential Lock Cover Adapter ALL 18 Main Differential Lock Sensor Jam Nut 19 Value Torque Lb-Ft N.
Information on Fasteners and its Torques Tabela S: Mounted on Tandem Axles (Track) RT - 140 RT - 145 RT - 149 RT - 160 RT - 164 RT - 169 RT - 185 815 1085 N.m (600-800 Ib-ft) 815 1085 N.m (600-800 Ib-ft) 815 1085 N.m (600-800 Ib-ft) 815 1085 N.m (600-800 Ib-ft) M45 x 1,5 M45 x 1,5 M45 x 1,5 610 - 880 N.m (450-650 Ib-ft) 610 - 880 N.m (450-650 Ib-ft) 610 - 880 N.m (450-650 Ib-ft) 610 - 880 N.m (450-650 Ib-ft) 610 - 880 N.m (450-650 Ib-ft) 610 - 880 N.
Specifications Adjustments Table U: Drive Pinion Bearings — Preload (See to Section 5) Specification New bearings 5-45 lb-in (0.56-5.08 N.m) Used bearings in good condition 10-30 lb-in (1.13-3.39 N.m) Adjustment Preload is controlled by the thickness of the spacer between bearing cones. To increase preload, install a thinner spacer.
Specifications Adjustments Table Z: utput Bearing — Clearance and Preload (See to Section 5) Clearance input axle 0.050-0.200 mm (0.002-0.008”) Tabela AA: Output Bearing — Clearance and Preload (See to Section 5) Specification 0.025-0.102 mm (0.001-0.004”) Holgura en el Rodamiento. Adjustment Clearance is controlled by the size of the snap ring in the output bearing cage. Increase end play by installing a thinner snap ring. Decrease end play by installing a thicker snap ring.
Special Tools Specifcations Mounting Bracket to Differential Repairs 1 - PLATES 8” (203,2 mm) Long X 3/4”(19,05 mm) THICK X 1-1/4” 931,75 mm) Wide With A Tongue To Fit Slot In Bar Weld Plates To Bar 2 - -Handle 7”(177,8 mm) Long With Slot In One End To Fit Clamp Screw 3 - Bar 2”(50,8 mm) Diameter X 9” (228,6 mL) ong With One End Slotted To Fit Plate 4 - Weld All Around After Pressing Plug In Pipe 5 - Weld 6 - Shape And Size Of Holes To Fit Differential 7 - 23-1/2” (596,9 mm) Center To Center Of Pipe 8 - Ch
Special Tools How to Make a Fork Tool to Detencion 1. Measure dimensions A and B of the fork you are servicing. Figure 10.1. 4. Cut a 1,20 mt x 1.25-inch piece of mild steel round stock to make the fork bar handle. Center weld this piece to the box section. Figure 10.2. • To increase fork bar rigidity: Weld two angle pieces onto the handle. Figure 10.2. Unitized Pinion Seals and Seal Tools See the Table AE and Figure 10.3 for information on unitized pinion seals and seal tollss.
Special Tools Table AE: Unitized Pinion Seals and Seal Tools Single Models Tandem Models MX-21-160 RT-34-144 /P MX-23-160R RT-34-145 /P RF-16-145 MT-40-143 RF-21-160 RT-40-145 /A /P RF-22-166 RT-40-149 /A /P RF-23-185 RT-44-145 /P RS-17-145 RT-40-160 /A /P RS-19-145 RT-40-169 /A /P RS-21-145 RT-46-160 /A /P RS-21-160 RT-46-169 /A /P RS-23-160 /A RT-46-164EH /P RS-23-161 /A RT-46-16HEH /P RS-25-160 /A RT-50-160 /P RS-23-186 RT-52-185¹ RS-26-185 RT-58-185¹ Seal Tools Diamete
Vehicle Towing Instructions Hazard Alert Messages Read and observe all Warning and Caution hazard alert messages in this publication. They provide information that can help prevent serious personal injury, damage to components, or both. WARNING To prevent serious eye injury, always wear safe eye protection when you perform vehicle maintenance or service. Park the vehicle on a level surface. Block the wheels to prevent the vehicle from moving. Support the vehicle with safety stands.
Vehicle Towing Instructions 7. Release conical washers, if used, of the flange of the axle shaf. Figure. FIGURE 11.1. CONICAL WASHER RETENTION STUD NUT WASHER CONICAL WASHER STUD GASKET PARAFUSO WASHER NON CONICAL WASHER RETENTION AXLE SHAFT OR FLANGE SHAFT HUB AXLE Figure 11.1 8. Identify each axle shaft to be removed from the axle assembly so they can be installed in the same location after transporting or repair is completed. 9. Remove the conical washers, the axle shafts and gaskets, if used.
Vehicle Towing Instructions 2. Apply the vehicle spring or parking brakes by manually releasing each spring that was compressed before begin to transport. See the vehicle manufacturer’s instructions. 3. Disconnect the auxiliary air supply, if used, from the brake system of the vehicle that was transported. Connect the vehicle’s air supply to the brake system. 4. Remove the covers from the hubs. NOTE: Install the axle shaft(s) indicated in Table AG.
Vehicle Towing Instructions 8. Unlock or disengage the DCDL by removing the manual engaging capscrew from the shift assembly. 9. Install the manual engaging capscrew into the storage hole. The storage hole of threaded shift assemblies is located in the shift tower of the differential next to the cylinder. Tighten the capscrew to 15-25 lb-ft (20-35 N m). Figure11.2. 10. Connect the air hose to the shift cylinder. Tighten the air hose to 22-30 lb-ft (30-40 Nm). 11.
Vehicle Towing Instructions BOLT ON SHIFT ASSEMBLY TOP STORAGE HOLE FOR MANUAL ENGAGING CAPSCREW MANUAL ENGAGING CAPSCREW AIR LINE PLUG AND GASKET WIRE BOTTON STORAGE HOLE FOR PLUG AND GASKET POSICIÓN DEL ORIFICIO PARA TORNILLO DE ACOPLAMIENTO MANUAL NOTE: When the locking ring is completely engaged with the main differential Cage splines, the differential is locked and the driveline do not be rotate. Figure 11.7. D.
Vehicle Towing Instructions 14. Lock or engaged the main differential Cage using the manual engaging methoid. A. Install the manual engaging capscrew into the threaded hole in the center of the cylinder. FIGURE 11.6. CAUTION When you turn the capscrew in Step D and you feel a high resistance, STOP TURNING THE CAPSCREW. A high resistance against the capscrew indicates that the splines of the shift collar and differential case are not aligned. Damage to the threads of the cylinder and capscrew will result. B.
Vehicle Towing Instructions Note: Install the axle shaft(s) indicated in Table AJ. Axle shafts with a DCDL have a double row of splines that engage with the splines of the side gear and shift collar in the differential case. FIGURE 11.7. 5. Install the gasket, if used, and axle shaft into the axle housing and differential in the same location. The gasket and flange of the axle shaft must be flat against the hub.
Vehicle Towing Instructions After Towing or Drive-Away: conical washer retention STUD NUT CONICAL WASHER WASHER STUD GASKET PARAFUSO WASHER NON CONICAL WASHER AXLE SHAFT OR FLANGE SHAFT HUB AXLE 8. Identify each axle shaft that is removed from the axle assembly so they can be installed in the same location after transporting or repair is completed. 9. Remove the conical washers, gasket, if used, and the axle shaft from the axle assembly. Figure 11.9. 10.
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Always use original parts For more details, see the Spare Parts Catalog Customer service 55 11 3684.6741 55 11 3684.6867 Purchase the CD-ROM failure analysis of components of the axis traction Customer Service Av. João Batista, 825 - Osasco - SP - 06097-105 Tel. (11) 3684-664 - (11) 3684-6867 AfterMarket (Replace parts) R. Ester Rombenso, 403 - Osasco - SP - 06097-120 Tel. (11) 0800-555530 www.arvinmeritor.
