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 4-7.10.
PUMP AND WATER OUTLET VALVE - MAINTENANCE INSTRUCTIONS.
(Continued).
pump (lifts greater than 16 to 20 feet (4.9 - 6.1 m)). While the pump is operating, the primer lever and plug
should always be tightly secured in place with the wing nut provided.
(6) To prime the fire pump manually, loosen the wing nut securing the manual priming lever and lift the lever,
fill the impeller housing and suction hose with water through the bowl, close and lock the priming lever with the
wing nut, and start the pump.
b. Description. The fire pump consists of the impeller housing (inner and outer halves), impeller, and various
seals and attaching parts. Maintenance and repair procedures follow.
c. Maintenance. Little maintenance will ordinarily be required. If leaks should develop around the impeller
housing, disassemble the pump, replace any damaged gaskets, seals, and any parts which show signs of wear.
While the pump is dismantled, clean any accumulation of dirt or scale out of the impeller and-impeller housing.
This task covers:
a. Inspection
c. Repair
b. Removal
d. Installation
INITIAL SETUP
Test Equipment
References
Paragraph
NONE
Priming Pump and Gear
Housing
Equipment
Special Tools
Condition Condition Description
Impeller puller
NONE
Strap wrench
Torque wrench
Material/Parts
Special Environmental Conditions
Gaskets and seals
NONE
Personnel Required
General Safety Instructions
1
NONE
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