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 629 of 1318

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

0070-3

DRAFT

0070

HWT0576

NOTE

PASSENGER SIDE AUX. INLET valve control will indicate ‘THROTTLED’ with a yellow

LED while valve is partially opened or closed.

Step 3.

While an assistant pushes pump operator’s panel PASSENGER SIDE AUX. INLET

valve control OPEN and CLOSE buttons (WP 0004).

Check if PASSENGER SIDE

AUX. INLET valve control OPENED (green) and CLOSED (red) indicators illuminate

before the valve is fully opened or closed.

If PASSENGER SIDE AUX. INLET valve control indicators illuminate before

the valve is fully opened or closed, go to Step 6.

NOTE

Valve operations must be checked by observing rotation of 7/16” hex at end of valve drive

assembly worm gear shaft for Step 4.

Step 4.

While an assistant pushes pump operator’s panel PASSENGER SIDE AUX. INLET

valve control OPEN and CLOSE buttons (WP 0004), check if passenger side auxiliary

inlet valve worm gear shaft moves after valve is fully opened or closed.

If passenger side auxiliary inlet valve worm gear shaft moves excessively

after valve is fully opened or closed, remove and re-install passenger side

auxiliary inlet valve motor (WP 0248), ensuring all mounting hardware is

secure.

Step 5.

Remove passenger side auxiliary inlet valve (WP 0186) and inspect it for damage and

contamination.

a.

If passenger side auxiliary inlet valve is free from damage and

contamination, reinstall valve (WP 0186) and go to Step 6.

b.

If passenger side auxiliary inlet valve is damaged and/or contaminated,

repair (WP 0249) or replace passenger side auxiliary inlet

valve (WP 0186).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION