TM-9-2320-328-13-P-1

HEMTT-BASED WATER TENDER (HEWATT)

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST); PART 1 OF 3

MARCH 2009

TM-9-2320-328-13-P-1 - Page 417 of 1318

TM 9-2320-328-13&P-1

0057-37

DRAFT

0057

Change 1

.

Step 51.

Check if cab or pump operator’s panel FOAM SYSTEM indicator is

illuminated (WP 0004).

.

If indicator is not illuminated, go to Step 55.

.

WARNING

.

ICON 3

.

Remove rings, wristwatches, neck chains, and any other jewelry before working

around vehicle.

Jewelry can catch on equipment and cause serious injury.

Jewelry

and tools may short across electrical circuits and cause damage to equipment, or

severe burns or electrical shock to personnel.

.

Step 52.

Disconnect pump house wire harness foam system shutoff control valve connector.

Put

cab or pump operator’s panel FOAM SYSTEM switch to ON position (WP 0004) and

release.

With a test lead set, check for 22 to 28 VDC between pump house wire

harness wire 2830 (red) at pump house wire harness foam system shutoff control valve

connector, terminal 1 and a known good ground.

.

If 22 to 28 VDC are not present, go to Step 54.

.

Step 53.

Pull battery disconnect switch to off position (WP 0007).

With a test lead set, check for

continuity across wire 2200 (black) from pump house wire harness foam system shutoff

control valve connector, terminal 2 to a known good ground.

.

If there is no continuity, repair wire 2200 in pump house wire harness if

repairable (TM 9-2320-325-14&P), or replace pump house wire

harness (WP 0302).

.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION