TM-5-3805-254-14-P-2

TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)

JUNE 1980

TM-5-3805-254-14-P-2 - Page 555 of 894

TRUCK SERVICE MANUAL

FUEL SYSTEM

Fuel Filter Restriction

1

Fuel filter restriction can be checked using ST434

Vacuum Gauge.

Fig.

534.

2.

Connect gauge using the special adapter furnished in

ST434.

3.

If restriction reads 8 inch vacuum while engine is

running at full speed and load, filter must be changed or other

sources of restriction remedied.

Sight glass gauge, (ST998),

will show air bubbles with air entrainment and possible gasket

or other leaks.