. MAINTENANCE SERVICE PROCEDURE REMARK given above. ADJUSTING NOTICE Check each pulley for damage, wear of the V-groove, and wear of the V-belt. In particular, be sure to check that the V-belt is not touching the and in the that 4 - 46 CHECK WHEN CHANGING The standard deflection between the air conditione r compressor pulley and fan pulley whe n pressed with a thumb (approx. 98 N (10 kg)) should be approx. 22 to 23 mm (0.8 t o 0.9 in). When a belt tension ga uge is used, the standard te nsion is within a range of 540 to 637 N When the belt has bee n replaced with a new part, a high ten sion is necessary, so the initia l tension is in the value 1.
Loosen nuts (1) an d (2), and move compresso r (3) to ad just. 2. Tighten nuts (1) an d (2) to hold compressor (3) in positi bottom of the V-groove In case any of the follow territory to replace the • The fan belt has elon . ing occurs, ask the Komatsu distributor in your belts with new ones. gated, leaving little allowance for adjustment. nd on the belt. sound is heard coming from the belt. set, readjust it after one hour of operation. • A cut or crack is fou • Slipping or creaking sound is heard coming from th When the new V-belt is set, readjust it after one hour o f operatio CHECK FOR LOOSE WHEEL HUB BOLTS, TIGHTEN I f wheel hub nuts (1) a increase accidents may be caus 1.
Check for loose nu When checking fo direction of tighteni Tightening torque: 2. If any stud bolt is wheel. 1. Check for loose nu ts, and tighten if necessary.