70 - 3
Dismantling and Assembly (Cont’d)
- Boom and Dipper Rams
This procedure applies to Hose Burst Protection Valves
fitted to the boom/dipper rams ONLY.
There is no servicing permitted on this valve apart from the
removing and fitting a new check valve assembly A when
the seal B has been broken.
DO NOT use the machine with a broken seal.
If the assembly is fitted to the machine, before removing the
check valve A, operate the main service control levers back
and forth to vent residual pressure.
After fitting a new check valve ensure that the valve
assembly operates correctly, refer to Service Procedures,
Hose Burst Protection Valves - Checking.
Section E
Hydraulics
9803/3280
Section E
70 - 3
Issue 1
Hose Burst Protection Valves
S327320
B
A
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