. MAINTENANCE SERVICE PROCEDURE ADJUSTING in position. CHECK AIR CONDITIONER COMPRESSOR BELT TENSION, ADJUST Before starting the operation, or remove cover (1). 4 - 45 Loosen bolts and nuts (1 Turn nut (5) clockwise deflection of the belt is a pprox. 13 mm (0.5 in)(approx. 5 9N (6 kg)). Tighten bolts and nuts (1 NOTICE Check each pulley for damag e, wear of the V-groove, and wear of t he V-belt. In particular, be sure to check that the V-belt is no t ouching the bottom of the V -groove. occurs, ask the Komatsu distributor in your territory to replace the belts with new ones. , leaving little allowance for adjustment. the belt. d is heard coming from the belt.
eadjust it after one hour of operation. I n case any of the following occurs, ask the Komatsu distributor in your territory to replace the b • The fan belt has elongated , leaving little allowance for adjustm • A cut or crack is found on • Slipping or creaking soun When the new V-belt is set, r eadjust it after one hour of operation CHECKING The standard deflection bet ween the air conditioner compressor Th pulley and crank pulley whe n pressed with a thumb (approx. 98 N (10 kg)) should be approx. 2 5 to 26 mm (0.9 to 1.0 in). When a belt tension gauge i s used, the standard tension is within a r ange of 294 to 441 N (30 to 45 kg).