. MAINTENANCE MAINTENANCE PROCEDURE 1. Detach fan guard (1). 4 - 59 Adjustment Prepare a Prepare a wooden bl 2. Insert a bar in betw een alternator ( 2) and the c ylinder block to secure a lternator (2 ). At tha t time p ut a woode n block between the bar and alternat or (2) t o avoid d amag e to alternat or (2) . he 3. 4. Loosen Push al alternator s ternator (2) ecuring to the bolts (3 machine ) and a front djusting bol side, prying t (4). with t bar, so that the fan belt d eflects b y approx. 8 mm (0 .315 in) 5. (approx Tighten . 58.5 N or alternator s 6 kgf), a ecuring nd then bolts (3 tighten adjusting bolt (4). ).
NOTICE Check eac h pulley for damage, wear of the V-groove , and w ear of the V-belt. In particular, be sure to check tha t the V-belt i s not tou ching the bottom of the V-groove . If the belt i s stretched a nd ther e is no all owance for a djustme nt, or if it is cut or cracked, please contact your Komatsu distributor for nt. for replaceme 6. Install fa n guard (1)