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TM 5-5430-219-13
Table 3-1. Unit Preventive Maintenance Checks and Services (Cont)
B - Before
D - During
A - After
S - Semiannually
Item
Interval
Item To Be I
Procedures
No.
Inspected
B
D
A
s
3
l
l
l
DRAIN GATE VALVE
Check for bent or binding stem (1),
broken handwheel (2), and leakage.
3.1
l
l
l
DRAIN BALL VALVE
Check for bent or binding stem (1),
Models #BA91-141 and #BA91-140
broken handle (2), and leakage.
4
l
l
l
VENT AND PIPE ASSEMBLY
Check for evidence of leakage,
damage, or missing parts. Check
relief cap (1) for cleanliness and
freedom, of operation. Check if flame
arrestor (2), relief cap gasket (3), flat
rubber gasket (4), or cam-lever arms
(5) are damaged or missing. Check
that screws (6) are torqued to 30 in-
lb (3.41 N.m).
Change 4 3-4.1/(3-4.2 blank)
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