CAB AR 6T8696 - Caterpillar

Use caution to avoid possible personal injury when adjusting the lift arm positioner.Stop the engine and lower all equipment to relieve hydraulic pressure.Engage the parking brake and block the tires to prevent sudden movement of the machine.Keep unauthorized personnel off the machine.
Specifications
Table 1
Lift Arm Positioner Height Adjustment    
Description    Specification    
Height (A)    
220 25 mm (8.7 1.0 inch)    
Illustration 1 g03048797
Position for recording lift arm positioner / bucket heightIntroduction
The following procedure will check the adjustment of the lift arm positioner magnetic switch.Check Preparation
Move the machine to a hard level surface away from operating machines and away from personnel.
Engage the parking brake. Place wheel blocks in front of the wheels and behind the wheels.
Stop the engine.
Install the steering frame lock. ReferenceRefer to Operation and Maintenance Manual, "Steering Frame Lock" for the machine being serviced.Check Procedure
Illustration 2 g03391588
(3) Lift arm positioner switch
Move lift arm positioner switch (3) to the ON position.
Start the engine.
Move the joystick control lever to the TILT BACK position until the bucket is fully tilted back.
Raise the lift arms to the maximum height. Move the joystick control lever to the FLOAT position. The lift arm positioner should bring the lift arms and the bucket to a controlled stop at the correct height for digging.
Record height (A). Refer to Illustration 1.
Refer to Table 1 for the correct height adjustment.
Illustration 3 g03048800
Tilt the bucket forward until the cutting edge of the bucket touches the ground. The bucket should be in the digging position, as shown in Illustration 3.
Stop the engine.
If height (A) or Step 7 are incorrect, continue with "Adjustment Procedure".
If height (A) and Step 7 are correct, remove the steering frame lock.ReferenceRefer to Operation and Maintenance Manual, "Steering Frame Lock" for the machine being serviced.Adjustment Procedure
Illustration 4 g03047225
(1) Magnetic switch (2) Bolt
Loosen two bolts (2).
Illustration 5 g03048797
Position for recording lift arm positioner / bucket height
If height (A) is greater than the height in Table 1, adjust magnetic switch (1) downwards.
If height (A) is less than the height in Table 1, adjust magnetic switch (1) upwards.
Tighten two bolts (2) .
Repeat "Check Procedure".
Remove the steering frame lock. ReferenceRefer to Operation and Maintenance Manual, "Steering Frame Lock" for the machine being serviced.