CRANE - JIB CYLINDER (EXTEND) LOAD HOLDING VALVE

TM 5-5420-279-23

CRANE - JIB CYLINDER (EXTEND) LOAD HOLDING VALVE

This task covers:

a. Remove

b. Install

INITIAL SETUP:

Tools Required

Tool Kit, General Mechanic's, Automotive (GMTK)

Materials Required

None

Equipment Conditions

Ensure that the crane is in the folded position

WARNING

SLIP AND FALL INJURY. PERSONNEL MAY SLIP ON SPILLED HYDRAULIC

FLUID. SUITABLE CONTAINERS AND FLUID ABSORBENT MATERIALS ARE TO

BE USED TO CONTAIN SPILLAGE.

INJURY FROM EXTREME HYDRAULIC OIL PRESSURE. THE SYSTEM MUST BE

DE-PRESSURIZED BEFORE CARRYING OUT ANY WORK ON THE JIB CYLINDER

LOAD HOLDING VALVES.

NOTE

The jib cylinder has two load holding valves. One for cylinder retract and one for cylinder

extend.

6-235