DRAFT
TM 5-4210-249-13&P-1
FIELD LEVEL MAINTENANCE
WATER PUMP ENGINE PRESSURE GOVERNOR CONTROL PANEL CHANGES ENGINE SPEED, BUT
OSCILLATES WHILE IN PSI MODE
INITIAL SETUP:
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Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanic's: Automotive
Water pump engine OFF (WP 0022)
(WP 0622, Item 27)
Engine OFF (TM 9-2320-347-10)
Wheels chocked (TM 9-2320-347-10)
References
WP 0193
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MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
WATER PUMP ENGINE PRESSURE GOVERNOR CONTROL PANEL CHANGES ENGINE SPEED, BUT
OSCILLATES WHILE IN PSI MODE
Step 1.
Start water pump engine (WP 0022). Operate pump operator's panel pressure
governor in PRESSURE mode (WP 0024). Check if pump operator's panel pressure
governor oscillates when in PRESSURE mode.
If pump operator's panel pressure governor oscillates when in PRESSURE
mode, go to Step 4.
Step 2.
Operate personnel cab pressure governor in PRESSURE mode (WP 0024). Check if
personnel cab pressure governor oscillates when in PRESSURE mode.
If personnel cab pressure governor does not oscillate when in PRESSURE
mode, fault corrected.
Step 3.
Operate personnel cab pressure governor in RPM mode (WP 0024). Check if
personnel cab pressure governor oscillates when in RPM mode.
a.
If personnel cab pressure governor oscillates in RPM mode,
troubleshoot Water Pump Engine Pressure Governor Control Panel
Changes Engine Speed, But Oscillates While In RPM Mode
b.
If personnel cab pressure governor does not oscillate in RPM mode,
adjust pressure governor parameters (WP 0193).
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