24. SERVICE PROCEDURE 24.2.11 ADJUST BODY POSITIONER With the positioner device, it is possible to automatically stop the dump body when it rises to the desired position (dump body turning angle) without any shock. Adjusting 1. Set the dump lever to the HOLD position. 2. Adjust push cable 1 to the standard length. Standard length A: 188 mm (7.4 in) A 3. Raise the dump body until the hoist cylinder is 15 mm before the end of its stroke, and adjust plate 2 so that the hoist valve lever is released from the detent. B Reference dimension B: 149 mm (5.9 in) 4.
After adjusting, start the engine, operate the dump lever, and check that the lever is automatically returned to the HOLD position when the dump body reaches the specified height. AE134080 24.2.12 CHECK PLAY OF OUTPUT COUPLING OF OUTPUT SHAFT If any abnormal noise occurs around the output shaft or front drive shaft, the rubber inside the output shaft may be deteriorated or damaged, so check the play of the coupling as follows. Play in circumferential direction Using a bar, move the coupling in the direction of the circumfer- ence and check the play in the circumferential direction at the outside diameter of the coupling. Standard: Max.
15 mm (0.6 in) REMARK If any excessive force is used during inspection, the engine will rotate under no load and it will be impossible to judge. When carrying out the inspection, check that the engine fan is not rotating. If the result of the measurement shows that it is greater than the standard value, please contact your Komatsu distributor for disas- sembly and inspection. 3-34