Cooling System/Fan/alternator Drive Belt Replacement CTM3274 (01JUL99) 30-23 Saran Liter Engines 060799 PN=222 CHECK FAN/ALTERNATOR BELT TENSION 1. Check belt tension using one of following methods: NOTE: On engine with dual belts, check tension of front -UN-04MAY98 belt only. a) Use of JDG529 Tension Gauge (A) Tension New Belt Tension Used Belt* CD30644 Single belt 578—622 N 378—423 N (130—140 lb) force (85—94 lb) force Dual belts 423—467 N 378—423 N (95—104 lb) force (85—94 lb) force b) Use of tension tester (B) and straightedge (C) A 89 N (20 lb) force applied halfway between pulleys should deflect belt by 19 mm (0.75 in.). -UN-04MAY98 2.
If adjustment is necessary, loosen alternator nuts (D) and (E). Pull alternator frame outward until belt is correctly tensioned. CD30645 IMPORTANT: Do not pry against the alternator rear frame. Do not tighten or loosen belts while they are hot. 3. Tighten alternator bracket nuts firmly. 4. Run engine for 10 minutes then recheck belt tension. -UN-04MAY98 CD30646 *Belts are considered used after 10 minutes of operation. CD,CTM125,166 -19-28JUN99 30 23