ADJUSTMENT - TM-55-1905-223-24-70070

TM 55-1905-223-24-7

(11) At midpoint between pump motor drive pulley (8) and pump pulley (11), press downward on one V-belt (5 or

6) to allow 1/2-inch deflection between pulleys.

(a) If V-belt deflects less than 1/2 inch, proceed to step (12).

(b) If V-belt deflects more than 1/2 inch, proceed to step (12).

(12) Loosen four hexagon nuts (7) on adjustable pump based that pump rests on.

(13) Turn tension adjustment (4) clockwise to tighten V-belt tension or counterclockwise to lessen tension.

(14) Secure four hexagon nuts (7) on adjustable pump base that pump rests on.

(15) Check V-belt tension again [step (11)].

(16) Adjust tension [steps (12), (13), and (14)] as necessary.

(17) Position pulley guard (1, FIGURE 2-11) with angle brackets (2 and 3) attached, inside main frame and

secure with eleven machine screws (4) through angle brackets (2, 3 and 5).

(18) Position louvered panel (1, FIGURE 2-8) on left side of RO desalinator and secure with ten machine screws

(2).

ADJUSTMENT

a. Adjust motor and pump assembly belt tension.

(1) On left side or RO desalinator, remove ten machine screws (2, FIGURE 2-8) and remove louvered panel (1)

from unit.

(2) On main frame assembly (6, FIGURE 2-11), remove eleven machine screws (4) from angle brackets (2, 3,

and 5) and remove pulley guard (1) from main frame assembly (6).

(3) At midpoint between drive pulley (8, FIGURE 2-10) and pump pulley (11), press downward on one belt (5 or

6) to allow 1/2-inch deflection between pulleys.

(4) If belt deflects more than 1/2 inch, adjust tension per steps (5) through (7), below.

(5) Loosen four hexagon nuts (7) on pump base.

(6) Turn tension adjustment (4) clockwise to tighten belt tension or counterclockwise to lessen belt tension.

(7) Secure four hexagon nuts (7) on adjustable pump base that pump rests on.

(8) Check belt tension again [steps (3) and (4)].

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