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 318 of 894

TRUCK SERVICE MANUAL

ENGINE

The injector contains a ball check valve.

As the injector

plunger moves downward to cover the feed opening, an

impulse pressure wave seats the ball and at the same

time traps a positive amount of fuel in the injector cup for

injection.

As the continuing downward plunger

movement injects fuel into the combustion chamber, it

also uncovers the drain opening and the ball rises from

its seat.

This allows free flow through the injector and

out the drain for cooling purposes and purging gases

from the cup.