INTERVAL
TM 5-4320-302-14
Table 2-2. Operator/Crew Preventive Maintenance Checks and Services-Continued
B BEFORE OPERATION
D DURING OPERATION
A AFTER OPERATION
W WEEKLY
M MONTHLY
B
D
A
W
M
Visually check interior of pump volute for foreign
matter that could damage pump during operation.
Check through suction flange (intake).
Visually check interior of check valve body assembly
(discharge) for foreign matter that could be discharged
into attached hose lines during operation.
Check half union is securely installed into volute. Be
sure priming tube assembly is tightly installed onto
half union.
36
Pump and Bearing Housing Assembly.
Excessive noise
indicates dam-
Listen to pump during operation. Excessive pump
age to pump
noise may indicate pump binding or cavitation.
and bearing
housing assem-
Monitor volute and bearing housing assembly tem-
bly.
peratures. Excessive heat indicates possibility of
pump damage.
ITEM
NO.
ITEM TO BE INSPECTED
PROCEDURE
EQUIPMENT IS NOT
READY/AVAILABLE IF:
2-52
