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 476 of 894

TRUCK SERVICE MANUAL

FUEL SYSTEM

6. When the air valve is opened, air travels up the

pipe in the center of the tube type hydraulic

reservoir and exerts a downward pressure

against the column of hydraulic fluid.

7. When both the air valve and the hydraulic valve

are opened, hydraulic fluid is admitted under the

piston in the cylinder and lifts the injector into

clamped position.

Any leak in the hydraulic

clamping system will directly affect injector

loading and must not be permitted.

8. In clamped position and with the appropriate link

in place, tension on the injector is the same as it

is in the operating engine.

Use of the improper

link will affect clamp load and upset delivery

values.