TM  10-3930-638-24&P 2-17.  COOLING  SYSTEM  MAINTENANCE  (cont) f. Fan and Belt (cont). STEP LOCATION ITEM ACTION REMARKS INSTALLATION/REPLACEMENT  (cont) 7 c. Four lock wash- Install Tighten in sequence shown below (cont) ers (3) and cap screws  (2) d.  Fan  belt(l) 8 Alternator a. Alternator b.  Adjustment screw  and mounting screw FAN  BELT  ADJUSTMENT 9 Engine Fan belt (1) Belt should deflect 1/2 inch as shown 10 Alternator a. Adjustment screw Loosen and  mounting screw b. Alternator Position Move toward engine to loosen fan belt or away from engine to tighten; use pry bar if necessary c. Adjustment screw Tighten When proper deflection of fan belt is ob- and  mounting tained  (step  9  above) screw Install Install Install Depress 2-94  Change  2