OP000599
4-81
Inspection, Maintenance and Adjustment
HANDLING OF ACCUMULATOR
Release pilot accumulator pressure using the following
procedure;
1.
Position the machine on firm, level ground. Lower the front
attachment to the ground and shut down engine.
2.
Set safety lever on "RELEASED" position.
3.
Turn starter switch to the "I" (ON) position.
4.
Fully stroke work and travel levers in all directions.
5.
Set safety lever on "LOCK" position.
6.
Turn key to "O" (OFF) position and remove from starter
switch.
7.
Remove accumulator by unscrewing it slowly.
WARNING!
Even though the engine is stopped, the hydraulic
accumulators for the pilot system are still charged. Do not
disconnect any pilot system hoses until accumulator
pressure has been released from the circuit. To release
pressure, turn the starter switch to the "I" (ON) position and
operate all hydraulic control levers and forward/reverse
travel levers. Even though the engine is shutdown hydraulic
actuated components may move while releasing pilot
pressure. Keep all personnel away from excavator while
performing this operation.
•
Set safety lever on "LOCK" position after
stopping engine.
•
DO NOT mishandle accumulator(s). They are very
dangerous because they contain high-pressure
nitrogen gas.
•
DO NOT punch a hole or apply heat or fire to an
accumulator.
•
DO NOT weld on accumulator, or try attaching
anything to it.
•
When replacing an accumulator, contact a
DOOSAN
distributor or sales agency so the gas
can be properly released.
•
Wear safety goggles and protective gloves when
working on an accumulator. Hydraulic oil under
pressure can penetrate the skin and cause
serious injuries.
Figure 139
FG009594
Summary of Contents for DX140LC
Page 2: ......
Page 67: ...OP000597 2 3 Operating Controls ...
Page 87: ...OP000597 2 23 Operating Controls ...
Page 122: ...OP000597 Operating Controls 2 58 CD Player Optional AST DIR FG000109 Figure 123 ...
Page 184: ...OP000598 Operation 3 48 ...
Page 193: ...OP000599 4 9 Inspection Maintenance and Adjustment ...
Page 272: ...OP000599 Inspection Maintenance and Adjustment 4 88 ...
Page 278: ...OP000600 Transportation 5 6 ...
Page 284: ...OP000013 Troubleshooting 6 6 ...
Page 292: ...OP000601 Specification 7 8 ...