DRAFT
TM 5-4210-249-13&P-1
0079
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2.
Turn water pump engine off (WP 0022). Turn battery disconnect switch to OFF
position (WP 0007). Open pump operator's panel housing (WP 0325). Disconnect
pump operator's panel wire harness pump operator's panel pressure governor
12-terminal wire harness connector. Disconnect pump operator's panel pressure
governor pressure transducer wire harness connector. With a test lead set, check for
continuity across red wire from pressure transducer connector, terminal 1 to pressure
governor 12-terminal connector, terminal 6.
If continuity is not present, replace pressure transducer wire
harness (WP 0460).
Step 3.
With a test lead set, check for continuity across white wire from pressure transducer
connector, terminal 3 to pressure governor 12-terminal connector, terminal 7.
If continuity is not present, replace pressure transducer wire
harness (WP 0460).
Step 4.
With a test lead set, check for continuity across black wire from pressure transducer
connector, terminal 2 to pressure governor 12-terminal connector, terminal 5.
If continuity is not present, replace pressure transducer wire
harness (WP 0460).
Step 5.
Start water pump engine (WP 0022). With a test lead set, check for 22 to 28 VDC on
wire 4061 from pressure governor 12-terminal connector, terminal 10 to a known good
ground.
If 22 to 28 VDC are present, replace personnel cab pressure governor
control panel (WP 0309).
Step 6.
Turn water pump engine off (WP 0022). Disconnect personnel cab pressure governor
pressure transducer wire harness connector. Connect pump operator's panel pressure
governor pressure transducer wire harness connector to personnel cab pressure
transducer. Start water pump engine (WP 0022). Operate pump operator's panel in
PRESSURE mode (WP 0024). Check if sensor or cavitate is displayed on pump
operator's panel pressure governor MESSAGE CENTER (WP 0004).
a.
If sensor or cavitate is displayed on pump operator's panel pressure
governor MESSAGE CENTER, replace pump operator's panel
governor control panel (WP 0332).
b.
If sensor or cavitate is not displayed on pump operator's panel
pressure governor MESSAGE CENTER, replace pressure
transducer (WP 0411).
0079-3