TM 5-4320-302-14
Table 4-1. Organizational Preventive Maintenance Checks and Services
W-Weekly
Q-Quarterly
M-Monthly
S-Semiannually
INTERVAL
ITEM
NO.
W
M
Q
S
ITEM TO BE INSPECTED
PROCEDURES
Check interior of V-belt guard for signs of rubbing that
would indicate inadequate clearance between guard and the
rotating engine components it protects. Check guard for
other signs of damage, dents, rust or corrosion. Be sure that
prior to installation of guard;-the guard has been repaired or
replaced as necessary to prevent interference with rotating
components of engine.
V-Belt Check and Adjustment
Check matched set of V-belts for glazing, wear, abrasions,
cracks, or cuts. Using thumb pressure, check V-belt tension.
Firm thumb pressure shall deflect V-belts 3/8-5/8 inch
(9.5-15.9 mm). If V-belts are damaged, replace as matched
set. Determine that detected V-belt damage has not been
caused by damaged or worn pulleys. Be sure damaged or
worn pulleys are replaced prior to replacing V-belts.
To adjust V-belt tension loosen hex bolts, move alternator
away from engine centerline far enough to take up slack,
and tighten hex bolts securely. Check tension on V-belts
after tightening.
WARNING
Priming discharge mixture of water and exhaust
gases may cause severe burns or injury. Wear
gloves and safety glasses when priming pump.
· Stand clear of venturi during priming.
Prime the centrifugal pump as soon as possible
after engine starts. Rotation of impeller without
water in volute will damage pump components.
Run engine for 10 minutes and recheck tension of belts.
Adjust as needed.
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