Form No. 3377-976 Rev A Backhoe RT1200 Trencher Model No. 25452—Serial No. 314000001 and Up Model No. 25452E—Serial No. 314000001 and Up Register at www.Toro.com.
WARNING Model No. CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm. Serial No. This manual identifies potential hazards and has safety messages identified by the safety alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions. Introduction Figure 2 1.
Safety Contents Safety ........................................................................... 3 Safety and Instructional Decals ................................. 4 Setup ............................................................................ 6 1 Preparing to Install the Attachment onto the Machine ............................................................. 7 2 Installing the Backhoe Frame and Swing Tower onto the Machine.................................................
CAUTION Hydraulic fittings, hydraulic lines/valves, and hydraulic fluid may be hot and can burn you if you touch them. • Wear gloves when maintaining hydraulic components. • Allow the traction unit and all attachments to cool before touching hydraulic components. • Do not touch hydraulic fluid spills. Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 125-6690 1.
125-8474 1. Warning—read the Operator’s Manual. 10. Lower the right stabilizer. 2. Tipping/crushing hazard—read the Operator’s Manual. 11. Raise the right stabilizer. 3. Explosion hazard; electric shock hazard—do not dig until you 12. Raise the bucket. have called local utilities. 4. Move the backhoe boom to the left. 13. Move the backhoe arm forward. 5. Lower the backhoe boom. 14. Dump the bucket. 6. Move the backhoe boom to the right. 15. Move the backhoe arm rearward. 7. Raise the backhoe boom.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Use Qty. 1 No parts required – Prepare to install the attachment onto the machine. 2 Backhoe frame and swing tower Bolt (1-1/4 inch x 3-1/2 inches) Washer (1-1/4 inch) Locknut (1-1/4 inch) 1 4 4 2 Install the backhoe frame and swing tower onto the machine. 3 Backhoe wiring harness 1 Install the backhoe wiring harness.
Procedure 14 15 16 17 18 19 20 21 Description Use Qty. No parts required – Dipper Dipper pivot pin (2 x 9-3/4 inches) Tabbed washer Slotted-spanner nut (1-3/4 inch) Retainer pin Grease fitting Hydraulic cylinder Dipper cylinder pin (1-1/2 x 5.83 inches) Snap ring Retainer pin Bucket Bucket pin Snap ring Bolt (3/8 x 1–1/2 inch) Lock washer Locknut Hydraulic hose (0.75 x 63.2 inches) Hydraulic hose (0.75 x 65.6 inches) Hydraulic hose (0.75 x 104.7 inches) Hydraulic hose (0.75 x 108.
2 Installing the Backhoe Frame and Swing Tower onto the Machine Parts needed for this procedure: 1 Backhoe frame and swing tower 4 Bolt (1-1/4 inch x 3-1/2 inches) 4 Washer (1-1/4 inch) 2 Locknut (1-1/4 inch) Procedure WARNING Lifting heavy machines and attachments improperly could result in serious injury or even death. Figure 3 When lifting heavy machines and attachments, use lifting equipment, such as chains and straps, that is rated for the weight of the equipment. 2.
3 Installing the Backhoe Wiring Harness Parts needed for this procedure: 1 Backhoe wiring harness Procedure 1. Rotate the battery disconnect to the Off position; refer to the traction unit Operator’s Manual. 2. Remove the left-side panel of the machine; refer to the traction unit Operator’s Manual. 3.
4 Installing the Walkway to the Machine Parts needed for this procedure: 1 Walkway 1 Hand rail 1 Pivot support bracket 1 Grease fitting 5 Bolt (M12 x 40 mm) 5 Locknut (M12) Figure 8 1. Walkway support bracket 4. Walkway mount bracket 2. Walkway 5. Forward, horizontal flange of the walkway 3. Pivot pin 6. Pivot bracket cylinder 2. Apply grease to the grease fitting until it is visible. Note: Use a general-purpose, lithium-based grease.
Installing the Hand Rail Secure the hand rail to the walkway with 2 bolts (M12 x 40 mm) and 2 locknuts (M12) as shown in Figure 10. Figure 11 1. Operator pedestal 4. Bolt (4) 2. Controls cover 5. Nut (4)—not shown 3. Washer (4) 2. Route the backhoe wiring harness along the left hydraulic tube along the operator platform. Figure 10 1. Bolts (M12 x 40 mm) 3. Locknuts (M12) 2. Hand rail 4. Walkway 3. Route the harness up under the console as shown in Figure 12.
Figure 15 Figure 13 1. Branch in the wiring harness 2. Seat-post tube 1. Console 3. Two-pin connector 2. Ten-socket connectors 4. Forked electrical terminals 7. Disassemble the E-stop switch assembly as follows: Note: Ensure that there is enough slack in the branch of the harness to connect it to the operator-presence switch and to allow for the seat to rotate freely. A. Remove the button cover from the button (Figure 16). 5.
Figure 17 Bottom view 1. Terminal screw A 2. E-stop switch 3. Saddle washers 4. Terminal screw B 6 Installing the Controls Cover and the Panels Figure 18 No Parts Required 1. Switch 6. C-clip 2. Alignment tang 7. Groove 3. Notch in the hole 4. Jam nut 5. Square fitting Procedure 1. Install the E-stop switch assembly onto the controls cover as follows: B. A. Locate the alignment tang on the body of the switch (Figure 18). 8. Button 9. Screw 10.
G. Install the button cover (Figure 18) that you removed in step A of 5 Connecting the Controls to the Wiring Harness (page 11) into the screw pocket in the button. 2. Align the holes of the controls cover with the holes in the operator pedestal of the backhoe (Figure 11). 3. Add medium-grade (service removable) thread-locking compound to the 4 bolts that you removed in step 1 of 5 Connecting the Controls to the Wiring Harness (page 11). 4.
3. Insert a cylinder mounting pin (1-1/4 x 7-1/2 inch) partway through the upper bushing in the forward plate of the backhoe frame (Figure 21). 9 Note: Ensure that the cross-drilled hole end of the cylinder mounting pin (in which you insert the retainer pin) is forward of the front stabilizer plate. Installing the Boom Parts needed for this procedure: 1 Boom 2 Boom pivot pin 2 Hex-head bolt (1/2 x 2 inch) 2 Washer (1/2 inch) 2 Spacer 2 Locknut (1/2 inch) Procedure 1.
7. Remove the lifting equipment. 5. Secure the piston-end of the cylinder with a boom cylinder mounting pin (1-3/4 x 3-3/4 inches), a hex-head bolt (3/8 x 1-1/2 inch), and a locknut (3/8 inch) as shown in Figure 23. 10 6. Lubricate the rod-end fitting of the cylinder and both mounting lugs on the side plates of the boom (Figure 23).
3. Start the engine on the machine; refer to the traction unit Operator’s Manual. 4. Set the engine speed to 1/4 throttle. 5. Move to the operator seat of the backhoe. 6. Move each stabilizer control forward and rearward several times until the stabilizers move smoothly throughout their full range of movement. Figure 25 The wheel and tire have been removed for the purpose of clarity. 1. Hydraulic pressure connection 5. Hydraulic-return hose (29.4 inches) 2. Hydraulic return connection 6.
Figure 28 1. Boom cylinder retract hose 3. Boom return tube (31.5 inches) Figure 27 1. Boom cylinder extend tube 2. Boom cylinder retract tube (connect 31.5-inch long (connect 32.4-inch long hose here) hose here) 2. Boom cylinder extend hose (32.4 inches) 4. Boom pressure tube 2. Secure the other end of the hydraulic hoses that are connected to the extend and retract tubes on the boom cylinder to their corresponding tubes as shown in Figure 28.
14 Bleeding the Boom Elevation Cylinder No Parts Required Procedure WARNING Co-workers and bystanders near the moving attachment parts may come into contact with an attachment part, causing serious injury or death. Be aware of where other workers are in the area while you are bleeding the hydraulic system, and keep others away from the area. Figure 31 1. Boom control (elevation movement) 1. Ensure that the ends of the unconnected hydraulic tubes are capped (Figure 30). 5.
16 Installing the Dipper Hydraulic Cylinder Parts needed for this procedure: 6. Slotted-spanner nut (1-3/4 inch) 2. Retainer pin 7. Grease fitting 3. Dipper pivot pin (2 x 9-3/4 inches) 8. Boom 4. Dipper mounting holes in the boom side plates 9. Hole in dipper end Hydraulic cylinder 1 Dipper cylinder pin (1-1/2 x 5.83 inches) 1 Snap ring 1 Retainer pin Procedure Figure 32 1. Dipper assembly 1 1.
9. Lubricate the piston-end fitting of the cylinder at its mounting point on the boom with general-purpose, lithium-based grease. 17 Installing the Bucket Parts needed for this procedure: 1 Bucket 2 Bucket pin 2 Snap ring 2 Bolt (3/8 x 1–1/2 inch) 2 Lock washer 2 Locknut Procedure 1. Remove the hardware (hex-head bolt, lock washer, and snap ring) and the bucket pin from the lower mounting bracket bushings at the end of the dipper (Figure 34). Figure 33 1.
Note: Insert general-purpose, lithium-based grease into the fittings until you can see excess grease, then remove the excess grease. 3. Position the bucket below the dipper on the ground. 4. Carefully lower the dipper into position near the bucket. 5. Move the bucket as needed to align the holes of the dipper end with the holes in the mounting plates of the bucket. 6. Insert a bucket pin through the aligned holes (Figure 34). 7.
Figure 38 Figure 36 The latch and the latch handle are not shown for the purpose of clarity. 1. Dipper cylinder extend tube 2. Dipper cylinder retract tube 4. Boom pressure tube 2. Dipper return tube 5. Dipper pressure tube 3. Bucket return tube 6. Bucket pressure tube 3. Connect hydraulic hoses to the extend and retract tubes on the bucket cylinder as shown in Figure 39. 3. Dipper cylinder Note: Connect the hose (104.7 inches long) to the bucket cylinder retract tube and the hose (108.
Figure 40 The locknuts are not shown. 1. Bucket cylinder return tube 5. Angle straps (4) 2. Bucket cylinder retract hose 3. Hex-head bolt—5/16 x 3-1/4 inch (4) 6. Bucket cylinder extend hose 7. Locknut—5/16 inch (4) 4. Washer—5/16 inch (4) 5. Torque all hydraulic hose fittings to 59 to 72 N-m (43 to 53 ft-lb). 6. Secure the hoses where they connect to the hydraulic tubes with 2 angle straps, 4 hex-head bolts (5/16 x 3-1/4 inch), 4 washers (5/16 inch), and 4 locknuts (5/16 inch) as shown in Figure 39.
6. Move the dipper control to extend and retract the dipper several times until the dipper moves smoothly throughout its full range of movement (Figure 42). 19 Bleeding the Hydraulic System No Parts Required Procedure WARNING Co-workers and bystanders near the moving attachment parts may come into contact with an attachment part, causing serious injury or death. Be aware of where other workers are in the area while you are bleeding the hydraulic system, and keep others away from the area. 1.
and then to the right (extend the bucket); refer to Figure 43. Note: The bucket should not move. C. Sit in the backhoe operator seat. D. Move the bucket and dipper control to the left and then to the right (Figure 43). Note: The bucket should curl and then extend. E. Press the E-stop button (Figure 45). Note: The engine of the traction unit should stop. Figure 44 Figure 45 1. Boom control (swing movement) 1. E-stop button 9.
Product Overview 21 Lubricating the Stabilizers No Parts Required Procedure 1. Raise the stabilizers. 2. Clean the grease fittings (Figure 46) with a rag. Figure 47 1. Dipper 5. Bucket 2. Boom-latch handle 3. Controls 6. Boom 7. Walkway 4. Hand rail 8. Left stabilizer Figure 46 3. Connect the grease gun to the grease fittings, and apply 2 or 3 pumps of grease to each fitting. 4. Wipe up any excess grease. 5. Lower the stabilizers. Figure 48 1. Seat 4. Swing-lock pedal 2. E-stop button 5.
E-stop Switch Use the remote engine shutoff control knob to stop the engine when you are in the backhoe operator’s seat. • Push down on the control knob to stop the engine (Figure 49). • Pull up on the control knob before re-starting the engine (Figure 49). Note: The engine will not start if the control knob is not pulled up in the Reset position. Figure 49 1. Boom extension and swing 4. Dipper extension and control lever bucket control lever 2. Left stabilizer control lever 5.
Boom-lock Handle Use the boom-lock handle to release the lock for the boom and allow the boom to move from the transport (upright) position (Figure 52). Pull the boom-lock handle rearward to release the boom lock. Figure 51 Swing-lock pin in released position 1. Swing-lock pin (in released 3. Notch in the upper pivot plate position) 2. Detent Figure 52 1.
Specifications Operation Determine the left and right sides of the machine from the normal operating position. The backhoe controls consists of 4 levers and 1 button. The left lever controls the boom and the swing; the 2 middle levers control the left and right stabilizers, and the right lever controls the dipper and the bucket. The farther you move a lever beyond the Neutral position, the faster the component responds. The E-stop knob is used to shut down the machine in an emergency.
3. Push the stabilizer control forward until the stabilizers has removed the weight of the machine from the front wheels slightly (Figure 54). Figure 55 1. Left stabilizer control 2. Right stabilizer control 4. Release the stabilizer controls. Figure 54 1. Left stabilizer control 2. Right stabilizer control 4. As necessary, adjust each stabilizer individually to level the machine. 5. Release the stabilizer controls. Lowering the Stabilizers 1.
Using the Boom and Swing Locks Unlocking the Boom Lock 1. Push the boom control forward (Figure 56). Figure 57 1. Swing-lock pin (in released 3. Notch in the upper pivot plate position) Figure 56 1. Boom control forward 2. Boom-control lever 2. Detent 3. Boom control rearward 2. Rotate the pin a quarter turn in either direction to align the cross pins on the pin with the holes in the detent plate (Figure 57). 2. Pull the boom-lock handle rearward (Figure 52). 3.
Preparing to Use the Backhoe Before Operating the Backhoe Service Interval: Before each use or daily Important: The backhoe is not a crane and should not be used as one. Do not use the backhoe as a lifting device. WARNING Bystanders unseen by the operator may be too close to the machine, and the machine or debris thrown from the machine may cause serious injury or death. Figure 58 1.
Before Digging with the Backhoe WARNING Co-workers and bystanders near the working site could come into contact with the machine or thrown debris, causing serious injury or death. Be aware of where other workers are in the area, and keep others away from the work area. Figure 60 1. Hand rails 3. Walkway 2. Foot hold 6. Lower the stabilizers to the ground, and lift the weight of the machine off the front tires; refer to Lowering the Stabilizers (page 31). 7.
Controlling the Backhoe Controlling the Dipper and the Bucket Controlling the Boom and the Swing You can control the dipper and the bucket by operating the right lever (Figure 63) as follows: • Push this lever forward to extend (“crowd out”) the You can control the boom and the swing of the backhoe by operating the left lever (Figure 61) as follows: dipper and the boom; pull it rearward (toward you) to curl (“crowd in”) the dipper and the boom.
Digging with the Backhoe Filling the Bucket Fill the bucket by operating the dipper, the boom, and the bucket as necessary to keep the bottom of the bucket parallel with the cut (Figure 65). Figure 66 Digging a Straight Wall 1. Strip the topsoil off the ground within the boundaries marked for a straight hole or grave. Figure 65 1. Correct (the bucket is parallel with the cut) 2. Remove as much material within the boundaries as possible using the usual digging techniques. 3.
3. Raise the boom to the vertical position and set the boom lock; refer to Locking the Boom Lock (page 32). 4. Center the boom straight ahead and set the swing lock; refer to Locking the Swing Lock (page 32). 5. Slowly drive the machine onto the transport vehicle. 6. Set the parking brake on the machine. 7. At the backhoe console, release the boom lock and lower the boom and the dipper until the bucket is resting on the deck of the transport vehicle (Figure 67). 8. Stop the engine and remove the key. 3.
about half full. Then curl the bucket as you crowd it in until the bucket is completely full; raise the bucket, swing the boom, and dump the bucket in the spoil area on the high side (if there is one) of the trench or excavation. • Carefully plan where you will deposit the spoil that you remove from the excavation. The location of the spoil pile will depend on what type of excavation you are conducting.
Maintenance Lubricating the Backhoe Service Interval: Before each use or daily Grease Type: Lithium-based grease. Greasing the Fittings on the Left Side of the Backhoe 1. Clean the grease fittings with a rag (Figure 68, Figure 69, and Figure 70). 2. Connect the grease gun to the grease fittings for the upper and lower pivots; apply 2 or 3 pumps of grease to each fitting (Figure 68, Figure 69, and Figure 70). 3. Wipe up any excess grease.
Figure 73 Figure 71 Figure 72 40
Lowering the Seat Raising and Lowering the Seat 1. Remove the hairpin from the seat-lock pin (Figure 74). Raising the Seat 2. Remove the seat-lock pin from the mounting plates (Figure 75). 1. Remove the hairpin from the seat-lock pin (Figure 74). 3. Move the hand rail (attached to the back of the seat) down until the hole in the seat post is aligned with the holes in the pivot brackets (Figure 75). 4. Install the seat-lock pin and the hairpin (Figure 74). Figure 74 1. Seat-lock pin 2. Hairpin 2.
Storage • When you are not using the backhoe, store it indoors in a clean and dry place. Note: If you are not able to store the backhoe indoors, cover the backhoe to keep moisture, dirt, and debris away from the machine. • Grease all exposed cylinder rods to prevent them from rusting. • Repair or replace any worn, damage, or missing parts on the backhoe. • Install dust caps onto the hydraulic nipples to prevent the hydraulic system from contamination.
Notes: 43
Underground Equipment The Toro Underground Warranty A Limited Warranty Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Underground Equipment (“Product”) to be free from defects in materials or workmanship. Where a warrantable condition exists, we will repair the Product at no cost to you including diagnostics, labor, and parts.
