TM 3-4230-209-10
Table 2-2. OPERATOR'S PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS) (CONT)
Item
Location, Item to
Not Fully Mission
No.
Interval
Check/Service
Procedure
Capable If:
Pump Unit
Assembly
(Cont)
27
DURING
Control Panel
a. The control panel can be
Assembly
inspected without having to
remove it from the pump unit
assembly. Wipe all switches
and gages with cloth to
remove accumulated dirt.
Clean the control panel with
a cloth (item 22, app D) and
water. Inspect switches for
loose parts or damaged
leads. Inspect gages for
cracked dials.
CAUTION
Do not operate pump dry
or when discharge
pressure is below 60 psi.
If more time is needed to
correct fault, shut down.
DURING
b. Check that gages and
PRESSURE
TACHOMETER work and
GAGE,
read correctly:
VACUUM
VACUUM GAGE: 0-30
GAGE, or oil
inches of mercury,
pressure gage
Water PRESSURE GAGE:
are not
60-120 psi,
working.
Oil Pressure Gage: greater
than 20 psi,
FUEL INDICATOR Gage:
above empty,
TACHOMETER: 3850 rpm
or less.
BEFORE
c. Inspect that HEATER
RECEPTACLE AND
SWITCH hardware securely
fasten the SWITCH to the
control panel.
Change 2 2-44
