TM 55-1930-209-14&P-3
CAUTION
Do not use any tool to force belts on or off belt sheaves
NOTE
Always use a new set of matched V-belts when replacing. Belts must be properly installed to
ensure maximum belt life and reduce wear on bearings.
(2)
Install V-belts on pulleys by hand without forcing belts.
(3)
Install belt tensioner assembly, two brackets, and four flatwashers and bolts.
(4)
Tighten two adjusting screws Tighten two locknuts.
(5)
Pump grease into grease fittings.
(6)
adjust V-belts (paragraph 4-7.3.11).
d.
Housing installation Install front V-belt housing (two pieces) Install 32 mounting screws and lockwashers.
e
Record completion of maintenance action In maintenance logbook.
4-8.4 RO block.
4-8.4.1 RO block membrane element removal and replacement.
a
Remove RO block pressure tube end caps (Figure 4-20) according to paragraph 4-8.7.
b
Remove membrane elements from pressure tubes as follows.
NOTE
The following procedure requires two people.
(1)
Position one person at feedwater end of tube with removal tool P/N 52100-1 (Figure 4-20). Position
other person at product end of tube to support membrane element's weight as it emerges from tube Insert
removal tool and slowly push elements through tube.
(2)
Repeat step 1 for other 15 tubes.
c.
Install replacement membrane elements as follows.
(1)
Rinse out inside of tubes with a garden hose.
(2)
Remove brine seal from RO membrane element and Inspect Replace seal If damaged Lightly coat
seal. with silicone lubricant Install seal on element and verify It is properly seated.
NOTE
Ensure lip of brine seal faces product water end of pressure tube
(3)
Place lead end of element In feedwater end of pressure tube Check to see that brine seal is in place.
(4)
Slide element about three-quarters of the way into tube.
(5)
Remove two O-rings from Interconnector Lightly coat O-rings with silicone lubricant Install O-rings on
interconnector by expanding O-rings slightly. Do not roll them into position.
(6)
Insert interconnector with O-rings on core tube of element.
(7)
Remove brine seal from next element and Inspect Replace seal if damaged. Lightly coat seal with
silicone lubricant Install seal on element and verify It is properly seated.
4-43
