Spicer Single Drive Axles ® Service Manual AXSM0056 September 2013 S170 Series S190 Series S590 Series
General Information General Information The description and specifications contained in this service publication are current at the time of printing. Dana reserves the right to discontinue or to modify its models and/or procedures and to change specifications at any time without notice. Any reference to brand names in this publication is made simply as an example of the types of tools and materials recommended for use and should not be considered an endorsement. Equivalents, if available, may be used.
Table of Contents Table of Contents Table of Contents Carrier Assembly page 7 Wheel Differential Assembly page 23 Drive Pinion page 12 Seals page 47 Housing Breather page 46 Lubrication page 54 Wheel End Seal page 47 Wheel Differential Lock page 40
General Information Introduction......................................................................1 Model Identification...................................................... 2-3 Failure Analysis............................................................ 4-5 Inspection.........................................................................6 Differential Carrier Assembly - Parts................................7 Remove Differential Carrier...........................................
General Information Introduction Dana Commercial Vehicle Systems Division, presents this publication to aid in maintenance and overhaul of Spicer tandem drive axles. Instructions contained cover the models listed. Their design is common, with differences in load capacity. Capacity variations are achieved by combining basic differential carrier assemblies with different axle housings, axle shafts and wheel equipment.
General Information Model Identification Drive Axle 4 3 Spicer® CUST. PART NO. SPEC. 2 5 MODEL SERIAL NO. PART NO. MADE IN: 1 6 RATIO 7 Spicer® CUST. PART NO. SPEC. MODEL SERIAL NO. PART NO. RATIO MADE IN: Rear Axle (Top View) 1 - Country or origin 2 - Axle model identification 3 - Specification number assigned to the axle built by Spicer. Identifies all component parts of the axle including special OEM requirements such as yokes or flanges.
General Information Ring Gear and Pinion Note: Ring gear and drive pinion are matched parts and must be replaced in sets.
Inspection Failure Analysis Failure analysis is the process of determining the original cause of a component failure in order to keep it from happening again. Too often, when a failed component is replaced without determining its cause, there will be a recurring failure. If a carrier housing is opened, revealing a ring gear with a broken tooth, it is not enough to settle on the broken tooth as the cause of the carrier failure. Other parts of the carrier must be examined.
Inspection Make a Preliminary Investigation Find the Cause of the Failure These steps consist of external inspections and observations that will be valuable when combined with the results of the parts examination. Here begins the real challenge to determine the exact cause of the failure. Keep in mind that there is no benefit to replacing a failed part without determining the cause of the failure.
Inspection Inspection Clean 1. Wash steel parts with ground or polished surfaces in solvent. There are many suitable commercial solvents available. Kerosene and diesel fuel are acceptable. Note: Replace conventional gaskets with silicone rubber gasket compound (included in many repair kits). The compound provides a more effective seal against lube seepage and is easier to remove from mating surfaces when replacing parts.
Differential Carrier Assembly Differential Carrier Assembly Differential Carrier Assembly - Parts 1 2 3 1 - Carrier fasteners 2 - Carrier assembly 3 - Single axle assembly 7
Differential Carrier Assembly Remove Differential Carrier Note: The removal of the forward carrier does not require disconnecting of the inter-axle driveline and removal of the output shaft yoke assembly as most other Spicer tandems require. Standard Differentials 1. Block the vehicle. 2. Drain axle lubricant. 3. Disconnect driveline. 4. Disconnect lead wires to the selector switch and air line at shift cylinder. 5. Remove axle shafts.
Carrier Assembly After July 2013 6. Mount the differential carrier in a head stand with the wheel differential facing upward. 8B. Using a long flat blade screwdriver on a pry bar, back off one of the wheel diff. bearing adjusters and remove. Carrier Assembly Note: For easier disassembly, loosen but do not remove the pinion nut. 7. Remove the carrier differential bearing cap capscrews, flat washers and bearing caps. 9.
Differential Carrier Assembly Install Differential Carrier IMPORTANT Before installing carrier assembly, inspect and thoroughly clean interior of axle housing using an appropriate solvent and clean rag. 1. Apply Spicer approved RTV compound on axle housing mating surface as shown in the illustration. Completely remove all old gasket material prior to applying new material. Compound will set in 5 minutes. Install carrier before compound sets or reapply.
Carrier Assembly Remove Wheel Differential (All Standard Models) Carrier Disassembly For models having the wheel differential lock option or a carrier thrust bolt, refer to the following procedure. These parts must be removed first before further disassembly of the wheel differential can take place. 1. For ease of service, mount differential carrier in head stand with differential locked with the differential lock facing up. 4.
Drive Pinion Pinion Removal 1. If a pilot web is used, remove the web capscrews. a. 2. Before the pinion nut can be loosened, you must de-stake the nut from the slot of the pinion. 3. To de-stake the nut, use a chisel or drift with a round tip. The flange of the nut must be pushed far enough outward so that the staked area will not interfere with the pinion threads when the nut is removed. See diagram below. For S190 disassembly, install a M10 x 1.
Drive Pinion 5. Place carrier assembly into a press, place a 2" x 6" x 6" wood block under the pinion. This will ensure that when the pinion is pressed free from the bearings the pinion will not be damaged. 2 IMPORTANT The bearing spacer will be reused or used as a starting point when resetting the pinion bearing preload. Do not discard this part. 1 3 4 6.
Drive Pinion Pinion Assembly - Parts Exploded View 1 2 3 4 5 6 7 8 9 10 1 - Pinion pilot bearing 2 - Pinion 3 - Pinion bearing cone - inner 4 - Pinion bearing cup - inner 14 5 - Pinion bearing spacer 6 - Pinion bearing cup - outer 7 - Pinion bearing cone - outer 8 - Oil seal 9 - Yoke 10 - Pinion nut
Drive Pinion Drive Pinion Overhaul and Assembly The preload of the bearings on the drive pinion is adjusted by a spacer between the inner and outer bearing cones and the helical gear. The preload is adjusted by changing the thickness of the spacer. A thicker spacer will decrease the preload, a thinner spacer will increase the bearing preload. 2. Remove the inner pinion bearing cone from the pinion using a split-type puller. Use two procedure steps to remove each bearing. a.
Drive Pinion c. IMPORTANT Use the correctly sized spacer. Do not use shim stock or grind spacers. These practices can lead to loss of bearing preload and gear or bearing failure. Weld: Place a weld bead around the inside of the cup, when the weld cools the cup will fall out. Hamme r: Use a rolling head prybar to get under the cup and then, with a hammer and drift from the back side of carrier, tap out bearing cup.
Drive Pinion Note: If you are using the same drive pinion, use the same spacer that was originally in stalled in the assembly. If the drive pinion is to be replaced, the original spacer will be used as the starting point of adjustment. 7. 9. Align a 6” x 6” x 6” wood block under the drive pinion, then lower the carrier and pinion assembly into a press so that it is supported by the block. Install the outer bearing cone. 10. Remove the pinion nut. 8. Drive Pinion 11.
Drive Pinion 12. With 5 tons of force on the press, you should be able to feel a small amount of drag from the bearing as you rotate the carrier. If the carrier turns with no drag at all, the pinion spacer thickness should be decreased by using a thinner spacer. If the carrier is hard to turn, the spacer thickness must be increased. 14. Install the drive yoke and pinion nut. 15. Torque the nut to 800-1000 lbs. ft. (1084-1355 N•m). 13. Remove the carrier from the press.
Drive Pinion 17. Now remove the pinion nut and yoke and install the pinion seal. Use Spicer’s seal drive (part number 210749) and drive adapter (part number 131472). WARNING Failure to stake the pinion nut properly may result in the nut coming loose during service. The pinion nut should never be reused, always replace with new. 20. If a pilot bearing web is used, lineup the web to the locating sleeves and tap in place with a rubber mallet. 1 18. Reinstall the yoke and pinion nut. Torque to 8001000 lbs.
Wheel Differential Wheel Differential - Parts Exploded View Before July 2013 After July 2013 1 2 3 2 3 4 19 18 4 5 5 7 8 17 6 8 7 6 9 12 9 11 15 16 6 16 6 11 14 10 10 1 - Threaded bearing adj - flange half 2 - Bearing cone - flange half 3 - Bearing cup - flange half 4 - Ring gear and pinion set 5 - Bolt 6 - Output side gear 7 - Side pinion thrust washer 20 8 - Differential spider 9 - Side gear 10 - Differential case - RH (plain half) 11 - Differential case - RH (plain half) whee
Wheel Differential Wheel Differential Wheel Differential Disassembly - Forward Carrier Assembly Before July 2013 IMPORTANT During the following procedures, place the differential assembly on a malleable surface to prevent damage when removing components. 1. Remove the differential case capscrews. 2. Remove the flange half differential case and bearing assembly. Use a screwdriver at the spider arm machined slots of the case to loosen the flange from the ring gear. 3.
Wheel Differential 22 Remove the bearing cones from the plain and flange halves in two steps: a. Mount the puller vertically to split the bearing. This action will start the bearing moving off the differential case. b. Mount the puller horizontally to remove the cone. Wheel Differential 6.
Wheel Differential Wheel Differential Assembly - Forward Carrier Assembly 4. Assemble the side pinions onto the wheel differential spider. Apply a thin coat of oil to the mating surfaces of the side pinion and differential spider. Install the wheel differential nest on top of the side gear. 5. Install the flange half side gear. Apply a thin coat of oil to the mating surfaces. 6. Install the ring gear. Align the capscrew holes.
Wheel Differential Use a rubber mallet to seat the ring gear to the plain half. 9. Install the ring gear capscrews. 8. Install the flange half of the case. Align the capscrew holes. 10. Tighten the ring gear capscrews with an impact gun and then use a torque wrench to torque to the proper specifications. See the Torque Chart. Wheel Differential 24 7.
Wheel Differential Set Backlash and Bearing Preload 2. Note: To install the wheel differential assembly, properly setup the gear pattern and set the differential bearing preload. This will require the use of the following Spicer tools or equivalent. These tools will allow you to align the bearing adjuster assembly to the carrier. This tool (part num ber 513061) will also gage the adjustment for the differential bearing preload and assist in setting the backlash.
Wheel Differential 4. Make sure that the bearings cage is parallel to the edge of the threaded cup. 6. Turn the plain half adjuster ring until there is zero preload on the bearings. This is done by turning the adjuster plate clockwise until you feel the threaded cup gain resistance. The threaded bearing cup should only be slightly snugged to achieve a zero preload condition. 1 1 2 1 1 - Parallel 5.
Wheel Differential Use a rubber mallet to fully seat the threaded bearing cups. 9. With a dial indicator, check the ring and pinion backlash. Set the backlash from 0.010" to 0.012". This will give you room to adjust the contact pattern, if necessary. 10. Remove the adjuster plates and threaded rod assembly. 11. Apply a 1/8” bead of Loctite 540 to the exposed threads of the bearing adjuster. 12. Install the carrier differential bearing caps and capscrews.
Wheel Differential 15. Measure the ring gear total radial runout. Indicator reading should not exceed 0.010" (0.25 mm). 18. With the carrier mounted in a head stand, roll the carrier on its side. 16. Measure the ring gear total backface runout. Indicator reading should not exceed 0.010" (0.25 mm). 19. Make a sling out of a strap and position around the plain half of the wheel differential. 20. Connect the end of the strap to a hoist and apply pressure to the sling. 17.
Wheel Differential 22. When contact pattern is correct, use a punch with a round head to stake the threaded bearing cups in place. Stake the outer edge of the bearing adjustment ring into the machined slots in the carrier bearing bore on both sides. Must be staked at two locations. Rotate cup if necessary to provide surfaces for staking. Wheel Differential 21. Use the correct socket and a breaker bar to rotate the differential. The differential should be hard to turn.
Wheel Differential After July 2013 IMPORTANT During the following procedures, place the differential assembly on a malleable surface to prevent damage when removing components. 1. Remove the differential case capscrews. 2. Remove the flange half differential case and bearing assembly. Use a screwdriver at the spider arm machined slots of the case to loosen the flange from the ring gear. 1 1 - Spider Arm Slots 30 3.
Wheel Differential 6. Remove the bearing cones from the plain and flange halves in two steps: a. Mount the puller vertically to split the bearing. This action will start the bearing moving off the differential case. b. Mount the puller horizontally to remove the cone.
Wheel Differential 4. Assemble the side pinions and thrust washers onto the wheel differential spider. Apply a thin coat of oil to the mating surfaces of the side pinion and differential spider. Install the wheel differential nest on top of the side gear 5. Install the flange half side gear and thrust washer. Apply a thin coat of oil to the mating surfaces. 6. Install the ring gear. Align the capscrew holes.
Wheel Differential 7. Use a rubber mallet to seat the ring gear to the plain half. 9. Install the ring gear capscrews. 8. Install the flange half of the case. Align the capscrew holes. 10. Tighten the ring gear capscrews with an impact gun and then use a torque wrench to torque to the proper specifications. See the Torque Chart.
Wheel Differential 11. Lower assembled differential assembly in to the carrier using a hoist and a strap. Be careful not to damage the differential bearings lowering the assembly. 12. Install the bearing cup and bearing adjuster to the flange half side first. 1 1 - Flange Half 2 - Plain Half 13. Install the bearing cup and bearing adjuster to the plain half side. Use a long screwdriver or bar to lift the differential up while installing the cup and bearing adjuster.
Wheel Differential Wheel Differential Install Wheel Differential Assembly - Forward Carrier Assembly Backlash and Bearing Preload 1. Turn the flange half bearing adjuster in until the ring gear contacts the pinion (zero backlash) then back the adjuster out two notches of the adjuster lugs. 3. Tighten the plain half adjuster two lug notches. Start with the notch at the top, count two notches counterclockwise on the adjuster so that the notch is facing straight up. You now have a two notch preload.
Wheel Differential 6. Install the carrier differential bearing caps and capscrews. Make certain there is no gap between the carrier cap and the carrier surface. 7. Use an impact gun to snug all carrier cap fasteners. 9. Measure the ring gear total radial runout. Indicator reading should not exceed 0.010" (0.25 mm). 10. Measure the ring gear total backface runout. Indicator reading should not exceed 0.010" (0.25 mm). 11. Check the ring gear tooth pattern.
Wheel Differential Wheel Differential 13. Make a sling out of a strap and position around the plain half of the wheel differential. 14. Connect the end of the strap to a hoist and apply pressure to the sling. 15. Use the correct socket and a breaker bar to rotate the differential. The differential should be hard to turn. Rotate the pinion until the ring gear rotates 3 or 4 times in both directions.
Ring Gear Adjust Tooth Contact Position Adjust Ring and Pinion Tooth Contact Pattern Used Gearing - Correct Pattern Note: Rear axle gearing is shown in the following instructions. Correct tooth contact patterns and adjustments are the same for forward and rear axles. Used gearing will not usually display the square, even contact pattern found in new gear sets. The gear will normally have a "pocket" at the heal end of the gear tooth.
Ring Gear Adjust Ring Gear Position (Backlash) If the gear pattern shows incorrect face width contact, change backlash by adjusting the ring gear. If the pattern is too close to the edge of the tooth toe, move the ring gear away from the pinion to increase backlash. Loosen the bearing adjuster on the teeth side of the ring gear several notches. 2. Loosen the opposite adjuster one notch. 3. Return to adjuster on teeth side of ring gear and tighten adjuster until it contacts the bearing cup. 4.
Wheel Differential Lock Wheel Differential Lock - Parts Exploded View 1 10 3 4 5 2 6 7 8 1 - Sliding clutch 2 - Spring 3 - Shift Fork 4 - Push rod 40 5 - Piston 6 - O-ring 7 - Piston cover 8 - Washer 9 9 - Switch 10 - Roll pin
Wheel Differential Lock Install and Adjust Wheel Differential Lock Note: With differential carrier completely assembled and adjusted, install differential lock as follows: 1. If shift fork and sliding clutch are disassembled, engage fork with the clutch hub and install spring pin in the fork leg. See illustration below for fork mounting position on clutch. 2. Position compression spring, shift fork and clutch in shift opening of the carrier. Align pilot hole of shift fork with the pilot hole of carrier. 3.
Output Shaft Assembly & Rear Cover Housing and Output Shaft Assembly - Parts Exploded View 6 4 5 7 1 2 10 3 11 9 8 12 1 - Jam nut 2 - Locking ring 3 - Spindle nut 4 - Axle housing 5 - Breather 42 6 - Breather hose 7 - Carriage capscrew 8 - Nut 9 - Lock washer 10 - Stud 11 - Drain plug 12 - Axle shaft
Seal - Replace Replace Seal Spicer strongly recommends using seal drivers when installing new seals. Use the proper driver to make sure that the seal is square and installed to the proper depth. 4. Remove the new seal from its package and install with the proper driver : R - Pinion Driver - 210749 R - Pinion Insert - 131472 CAUTION 1. Remove the old yoke using appropriate tool.
Seal - Replace Guidelines for Reusing Yoke CAUTION Do not use the yoke if it has any damage on the seal surface (nicks or scratches). The surface of the yoke and the lips of the seal form a critical interface which retains the axle’s lubricant while sealing the axle from outside contaminants. The condition of the yoke hub’s surface is a very important factor in determining seal life. Carefully inspect the seal surface area of the yoke hub for signs of wear and damage.
Seal - Replace Seal - Replace Service Kit R-Pinion Location Tool 210749 131472 45
Housing Breather Housing Breather Spicer has an axle breather that consists of a fitting, hose and clamp assembly. This breather design has improved resistance to water ingestion, clogging caused by dirt, ice or snow buildup around the base of the breather. See installation instructions below (all views from rear). 1. Install fitting in breather hole. 2. Tighten fitting finger tight. 3. 46 Using a 3/4” wrench: • Metal only: Rotate the fitting at least 1/2 turn until nipple points to rear.
Wheel End Seal Wheel End Seal - Parts Exploded View Wheel End Seal 1 2 3 1 - Installation tool 2 - Seal 3 - Rear hub 47
Wheel End Seal Remove and Overhaul Wheel End Seal Install Wheel End Seal WARNING Never work under a vehicle supported by only a jack. Always support vehicle with stands. Block the wheels and make sure the vehicle will not roll before releasing the brakes. IMPORTANT Wheel end seals can be easily damaged during handling. Leave the seal in its package until installation to prevent damage or contamination. 1. Remove outer bearing and wheel. 2. Remove oil seal. 3. Remove inner bearing. 4.
Wheel End Seal WARNING Do not mix spindle nuts and lock washers from different systems. Mixing spindle nuts and lock washers can cause wheel separation. Note: The lock washer for a four-piece tang/dowel-type wheel nut system is thinner than the lock washer for a threepiece tang-type wheel nut system and is not designed to bear against the inner nut. 1. Inspect the spindle and nut threads for corrosion and clean thoroughly or replace as required.
Wheel End Seal b. Install the outer nut on the spindle and tighten to 350 lbs. ft. (475 N•m). Four-piece Tang/Dowel-type Lock Washer System c. Verify endplay. Three-piece Tang-type Lock Washer System 4 3 5 2 1 1 3 2 1 - Inner Nut 2 - Dowel Pin 3 - Dowel-type Lock Washer 4 - Tang-type Lock Washer 0.0478" (1.2065 mm) thick 5 - Outer Nut 1 - Inner Nut 2 - Tang-type Lock Washer 0.123" (3.124 mm) thick 3 - Outer Nut a. Install the Tang-type lock washer on the spindle. a.
Wheel End Seal Verify Wheel Endplay Procedure Verify that endplay meets specification using a dial indicator. An indicator with 0.001" (0.03 mm) resolution is required. Wheel endplay is the free movement of the tire and wheel assembly along the spindle axis. Correct endplay is 0.001"–0.005" (0.025–0.125 mm). Attach a dial indicator with its magnetic base to the hub or brake drum as shown below. 2.
Wheel End Seal Lubricate Wheel End Wheel Ends with an Oil Fill Hole CAUTION 1. Rotate the wheel end hub until the oil fill hole is up. Before operating the axle, the wheel hub cavities and bearings must be lubricated to prevent failure. 2. Rem ove the oil fill plug. 3. When wheel ends are serviced, follow Spicer’s wheel end lubri cation procedure before operating the axle. Pour 1/2 pint of axle sump lubricant into each hub through the wheel end fill hole . 4.
Wheel End Seal 1. With axle level and wheel ends assembled, add lubricant through filler hole in axle housing cover until fluid is level with the bottom of filler hole. 2. Raise the right side of the axle 6" or more. Hold axle in this position for one minute. 3. Lower the right side. Raise the left side of the axle 6" or more. Hold axle in this position for one minute. 5. Lower the left side. 6.
Lubrication General Lubrication Information The ability of a drive axle to deliver quiet, trouble-free operation over a period of years is largely dependent upon the use of good quality gear lubrication in the correct quantity. The most satisfactory results can be obtained by following the directions contained in this manual. The following lubrication instructions represent the most current recommendations from Dana.
Lubrication Lube Change Intervals This product combines the latest manufacturing and part washing technology. When filled with an Spicer approved synthetic lubricant at the factory, the initial drain is not required. Change the lubricant within the first 5,000 miles of operation when not using a Spicer approved synthetic lubricant in either a new axle or after a carrier head replacement.
Lubrication Change Lube Drain Drain when the lube is at normal operating temperature (150°–200°F). It will run freely and minimize the time necessary to fully drain the axle, this insures the axle is flushed. Unscrew the magnetic drain plug on the underside of the axle housing and allow the lube to drain into a suitable container. Note: Lube fill capacities (see chart) are basic guidelines and will vary based on the angle the axle is installed in a particular chassis. Torque fill plug to 40–60 lbs. ft.
Lubrication Standpipes Drive axles are lubricated with oil drawn from a large sump integral to the assembly. Most axle designs attempt to position vital components such as pinion bearings in close proximity to this sump, keeping them bathed in a generous supply of oil at all times. Axles should be modified with standpipes to raise lube levels whenever chassis installation angles exceed 10° and when the vehicle must negotiate continuous or lengthy grades on a routine basis.
Lubrication 12° Installation Tandem Rear Axles Installation Angle* 5-10% Grade 10-15% Grade 15-20% Grade 0° – – – 3° – – 1.00" 5° – 1.00" 1.75" 7° – 1.75" 2.00" 10° – 2.00" 2.25" 13° 1.00" 2.25" 2.75" 15° 2.00" 2.50" 3.
Towing Guide Proper Vehicle Towing Lift the drive wheels completely off of the ground or damage will occur. With Wheel Differential Lock Follow this procedure to remove all axle shafts preventing gear rotation with the drive wheels and possible lubrication damage: 1. Engage the wheel differential lock, indicator light is on (move vehicle to verify engagement). Do not lift the front wheels (non-drive wheels).
Theory of Operation Power Divider Operation (Power Flow and Torque Distribution) In operation, the power divider accepts torque from the vehicle driveline and distributes it equally to the two axles. The inter-axle differential compensates for minor variations in speed between the two axles, the same way the wheel differential works between the two wheels of a single drive axle. This unit also acts as a central point in distribution of torque to the two axles.
Theory of Operation With Lockout Engaged (Inter-Axle Differential is Not Operating) Note: Varied road surface conditions can result in unequal torque distribution between the two axle assemblies. Lockout should only be engaged when both axles are rotating at the same speed. Operation should be limited to lowtraction situations and should be disengaged when normal traction returns. Failure to do so will result in poor handling and damage to the axle components.
Theory of Operation Operate Wheel Differential Assembly The Spicer wheel differential lock is driver-controlled and operated by a carrier mounted air-actuated shift unit. In operation, it po sitively locks the wheel differential to pro vide improved traction und er adverse road conditions. Control Systems for Differential Lock Two systems may be used to control the differential lock operation.
Theory of Operation Direct Driver-Controlled System 1 2 14 11 10 12 5 13 9 4 7 8 Theory of Operation 1 - Cab-mounted control val ve (plunger in—valve open) 2 - Dry air supply tank 80–120 PSI 3 - Preferably equal in length 4 - Power supply 5 - Fuse or circuit breaker 6 - Indicator light or audible signal 7 - Wheel differential lock indicator switch (part of axle assembly) 8 - Rear axle wheel differential lock air shift cylinder (part of axle assembly) 3 6 9 - Forward rear axle wheel differenti
Theory of Operation Wheel Differential Lock The Spicer Wheel Differential Lock is an optional feature for spicer Axles. In operation, it positively locks the wheel differ ential, to provide improved traction under adverse road conditions. The wheel differential lock co nsists of three major assemblies . The differential lock is driver-controlled through an electric switch or air valve mounted in the cab. The locking mechanism is air-operated to engage a mechanical clutch and lock the wheel differential.
Theory of Operation Differential Lock Engaged Differential Lock Engagement Indicator Air pressure applied to the shift cylinder moves the piston, push rod, shift fork and the sliding curvic clutch engages the fixed curvic clutch. Differential lock engagement is detected by a switch (electric) mounted on the differential carrier. An actuator, mounted in the piston cover, operates the switch. The sliding clutch is splined to the axle shaft. The fixed clutch is splined to the differential case hub.
Parts Identification Pinion Assembly - Parts Exploded View 1 2 3 4 5 6 7 8 9 10 1 - Pinion pilot bearing 5 - Pinion bearing spacer 2 - P in io n 6 - P in io n b ear in g cu p - o u ter 3 - Pinion bearing cone - inner 7 - Pinion bearing cone - outer 4 - Pinion bearing cup - inner 8 - Oil seal 66 9 - Yoke 10 - P in io n n u t
Parts Identification Wheel Differential - Parts Exploded View Before July 2013 After July 2013 1 18 2 17 2 3 3 4 4 5 5 7 8 16 6 8 7 6 9 9 12 14 6 6 15 Parts Identification 11 15 11 13 10 10 1 - Threaded bearing adj - flange half 2 - Bearing cone - flange half 3 - Differential case LH (flange half) 4 - Ring gear and pinion set 5 - Bolt 6 - Side gear 7 - Side pinion 8 - Differential spider 9 - Differential case - RH (plain half) 10 - Differential case - RH (plain half) wheel diff l
Parts Identification Wheel Differential Lock Assembly - Parts Exploded View 1 10 3 4 5 2 6 7 8 1 - Sliding clutch 2 - Spring 3 - Shift Fork 4 - Push rod 68 5 - Piston 6 - O-ring 7 - Piston cover 8 - Washer 9 9 - Switch 10 - Roll pin
Parts Identification Housing and Output Shaft Assembly - Parts Exploded View 6 4 5 7 1 2 10 3 11 9 8 1- Jam Nut 2 - Locking ring 3 - Spindle nut 4 - Axle housing 5 - Breather 6 - Breather hose 7 - Carriage capscrew 8 - Nut Parts Identification 12 9 - Lock washer 10 - Stud 11 - Drain plug 12 - Axle shaft 69
Fastener Torque Specifications Fastener Torque Specifications Size Lbs. Ft. N•m Input Cage Locking Bolt M8 x 1.0 x 30 20 ± 5 25 ± 5 IAD Shift End Cap 2.375 - 16 UN-2A 65 ± 10 85 ± 15 Power Divider Cover Capscrews M14 x 1.5 x 45 175 ± 10 235 ± 10 Input Shaft Nut M48 x 1.5 900 ± 100 1220 ± 135 Front Pinion Helical Nut M48 x 1.5 900 ± 100 1220 ± 135 Output Shaft Nut M42 x 1.5 900 ± 100 1220 ± 135 Rear Pinion Nut M48 x 1.5 900 ± 100 1220 ± 135 Ring Gear, Diff.
For spec‘ing or service assistance, call 1-877-777-5360 or visit our website at www.dana.com Dana Commercial Vehicle Products Group 3939 Technology Drive Maumee, Ohio, USA 43537 www.dana.com All applications must be approved by the Application Engineering Department. Specifications and/or design are subject to change without notice or obligation.
