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Use caution to avoid possible personal injury when adjusting the attachment positioner. Stop the engine and lower all equipment to relieve the hydraulic pressure. Engage the parking brake and block the tires to prevent sudden movement of the machine. Keep unauthorized personnel off the machine. |
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Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine. To prevent personal injury or death, perform the following: Park the machine on a smooth, level surface. Lower the work tool to the ground and engage the parking brake. Stop the engine and remove the key. Block the wheels and install the steering frame lock. |
Machine Preparation For Troubleshooting
- Park the machine on a smooth, level surface. Park the machine away from working machines and personnel. Lower the work tools to the ground.
- Allow only one operator on the machine. Keep all personnel away from the machine or in the view of the operator.
- Engage the parking brake.
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Illustration 1 g00914095 - Place the steering frame lock in the LOCKED position.
Reference: For more information about preparing the machine for troubleshooting, refer to the Service Manual module Testing and Adjusting, "Machine Preparation for Troubleshooting" for the machine that is being serviced.
Adjusting the Control Group for the Fork Assembly
- Press the upper half of kickout switch (on/off) (2) in order to activate the bucket positioner and the lift kickout.
- Press the lower half of bucket/forks switch (1) in order to activate the control group for the fork assembly.
- Start the engine. Lower the attachment to the ground.
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Illustration 3 g00917853 Side View of the Work Tool Positioner - Ensure that the cover assembly for the work tool positioner is in the proper location on the tilt cylinder. The correct length for dimension (A) is
880 ± 5 mm (34.65 ± 0.20 inch) . If dimension (A) is not correct, proceed to Step 5. If dimension (A) is correct, proceed to Step 6.Show/hide tableIllustration 4 g00917871 Cover assembly for the Work Tool Positioner - In order to adjust cover assembly (4), loosen two bolts (3). Slide cover assembly (4) on the tilt cylinder. Tighten bolt (3).
Note: When you adjust the cover assembly, ensure that the positioner switch is moved parallel to the magnet assembly during the movement on the cylinder. The clearance between control group (4) and the magnet assembly is
6 ± 2 mm (0.24 ± 0.08 inch) . - Position the fork assembly at the desired angle to the ground. Turn the engine start switch key to the OFF position and remove the engine start switch key. Move the tilt lever for the attachment to the TILT BACK detent position.
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Illustration 5 g00917825 Work Tool Positioner
(5) Bolts. (6) Control group for the bucket. (7) Control group for the fork assembly. (8) Tube assembly - Loosen the three bolts (5) that clamp the tube assembly (8) to the rod end of the tilt cylinder. Move tube assembly (8) down the cylinder in order to increase the digging angle. Move tube assembly (8) up the cylinder in order to decrease the digging angle.
- To test the adjustment, start the engine. Raise the fork assembly. Move the tilt control lever to the TILT BACK detent position.
- When the fork assembly reaches the adjusted angle, the tilt control lever should return to the HOLD position.
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Illustration 2 | g00917785 |
Control Panel |
Adjusting the Control Group for the Bucket
- Press the upper half of the kickout switch (on/off) (2) in order to activate the bucket positioner and the lift kickout.
- Press the upper half of the bucket/forks switch (1) in order to activate the control group for the bucket function.
- Start the engine. Lower the bucket to the ground.
- Position the bucket at the desired angle to the ground. Turn the engine start switch key to the OFF position and remove the engine start switch key. Move the tilt control lever to the TILT BACK detent position.
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Illustration 7 g00917825 Work Tool Positioner
(5) Bolts. (6) Control group for the bucket. (7) Control group for the fork assembly. (8) Tube assemblyShow/hide tableIllustration 8 g00917884 Top View of the Work Tool Positioner
(8) Tube assembly. (9) Tilt cylinder. (10) Cover assembly for the control group. (11) Bolts. - Loosen the two bolts (11) that clamp the control group (6) to bracket (10). Move control group (6) forward or backward on bracket (10) in order to adjust the kickout for the bucket. Tighten two bolts (11).
Note: Ride control (if equipped) should be turned off before the evaluation of the tilt kickout and bucket position.
- In order to test the adjustment, start the engine. Run the engine at high idle. Raise the bucket. Place the bucket in the full DUMP position. Move the tilt control lever to the TILT BACK detent position.
- When the bucket reaches the preset digging angle, the tilt control lever should return to the HOLD position.
- After adjustments to the work tool are complete, place the steering frame lock into the STORE position.
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Illustration 6 | g00917785 |
Control Panel |