Lesson 4/Learning Event 2
LEARNING EVENT 2:
DESCRIBE ORGANIZATIONAL CORRECTIVE
MAINTENANCE OF THE PUMP-UNIT ASSEMBLY
Organizational corrective maintenance of the pump-unit assembly consists of
the repair and/or replacement of selected components. We will discuss each
component and the procedures used for the service required.
Pump.
Pump housing repair will consist of replacement of the lubrication
fittings and replacement of the pump breather. Use the following steps to
replace the lubrication fittings.
Step 1.
Use a wrench to remove defective fittings, by turning counter-
clockwise.
Step 2.
Use a wrench to install replacement fittings, by turning clockwise.
Step 3.
Lubricate the pump.
The pump breather is a threaded hollow fitting with a cap.
Service the
breather using the following steps.
Step 1.
Use a wrench to unscrew the pump breather.
Step 2. Clean the oil from the pump breather and reinstall.
Replace the
pump breather if the cap is missing or damaged.
Gasoline Engine.
The only authorized repair to the engine at
the
organizational level is adjusting the governor to 3,850 RPM.
Use
TM 5-2805-259-14 when this is required.
Control Panel Components. Prior to replacing control panel components, you
must first gain access to the components.
This is done in the following
method.
Step 1.
Remove the four clevis-lifting eyebolts on top of the pump unit.
Step 2.
Remove the lid from the prime-detergent tank.
Step 3.
Lift the top cover off the pump unit.
Step 4.
Remove the lower right and left cover panels.
WARNING
Disconnect the battery's positive cable
from
the
positive
terminal before performing maintenance.
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