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 TM 55-1905-223-24-3
d. Visually inspect the water pump pulley (28) and pulley (18) for cracked, chipped, or broken pulley
grooves. Replace if damaged.
e. Visually inspect pulleys (18, 28) and V-belt (25) alignment. Misalignment between pulleys (18, 28) shall
not exceed 1/16 inch per foot (0.5 mm per cm) of distance between the pulley centers. Replace the
water pump (7) or the device (20) if they are not in alignment.
ADJUSTMENT
a. Remove the water pump belt guard (21, Figure 2-14). Refer to Removal step in this procedure.
b. Loosen the idler shaft nut (3, Figure 2-15).
FIGURE 2-15. Water Pump Belt Adjustment.
c.
Turn the capscrew (2) counterclockwise to release tension on the belt.
NOTE
Belt tension can increase when the nut (3) is tightened. Do not
adjust belt tension to full value with the capscrew (2).
d. Turn the capscrew (2) to adjust the belt tension.
e. Use belt tension gauge to measure belt tension as follows:
(1) 150 to 160 ft-lb (200 to 220 N ) for new belt.
m
(2) 70 to 120 ft-lb (45 to 165 N ) for used belt.
m
2-87
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