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TM 5-4210-220-12
Table 4-1. Unit PMCS - Continued
W - Weekly
M - Monthly
S - Semi-Annually
M - Monthly
B - Bi-Annual
ITEM
ITEM TO BE INSPECTED/PROCEDURE
NO.
W
M
S
A
B
9
PUMP BODY SWITCHES:
Perform operational test of all switches. Inspect all switches for physical
damage. Check all electrical connections are tight.
10
PUMP BODY AIR COMPONENTS:
Inspect all air lines and piping for evidence of leaks or cracks. Replace
individual fittings and hoses as necessary. Perform operational test of
all air switches.
11
VALVE LEVERS:
Operate valve levers. Check for smooth operation. Check each lever
locks with less than 1 full turn of knob. Check valve is fully open when
knob is set to full open and valve is fully closed when knob is set to
full closed.
12
GAGES:
Check that the bubble in each gage is less than 25% of the total area of the
glass. Replace gage as required. Check all gages read similar pressures when
subject to the same pump pressure. Check all water lines to the gages for
leaks. Replace/tighten as required. Refer to paragraph 4-13.
13
CAB AND PUMP BODY SAFETY BARS:
Check all safety bars for tightness. Replace as required. Refer to paragraph 4-12
14
SUCTION AND DISCHARGE CONNECTIONS:
Check all cap retaining chains are in place. Remove each cap and check
threads for severe damage. Replace connection/cap as required. Check
all suction strainers are in place and are clean.
15
FLIP-UP STEP:
Check both flip-up steps between pump body and hose body are
securely hinged to hose body. Be sure they clip safely to hose body in
the up position. Straighten/replace as required.
16
FIRE PUMP:
Perform operational test from draft supply with 20 feet of hard suction
hose. Check pump primes in less than 30 seconds. While pumping
check for water or oil leaks through the hole in the bottom of housing
between the pump volute body and gear housing.
4-10
Interval
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