Chapter 6 Ancillary equipment
125
Ancillary equipment
Quick connect coupling for auxiliary hydraulic equipment
A number of ancillary equipment such as grab, rotator, fly-jib, etc. are powered hydraulically. Therefore
the hydraulic system of the auxiliary equipment has to be connected to the crane’s hydraulic system.
Warning!
Incorrectly connected or dirty couplings may lead to oil leakage
(environmental pollution) or failure of the auxiliary equipment.
Always keep the couplings clean.
Threaded couplings
Connecting:
x
Switch off the pump.
x
Operate the levers in both switching positions. Residual pressure is released.
x
Make sure all operating levers are in neutral position.
x
Remove the protective caps from the couplings.
x
Screw the threaded couplings until they seated (mind the colors).
x
Connect the protective caps together.
x
Store the hoses properly in the hose trays.
Disconnecting:
x
Switch off the pump.
x
Operate the levers in both switching positions. Residual pressure is released.
x
Make sure all operating levers are in neutral position.
x
Disconnect the protective caps from each other.
x
Unscrew the threaded couplings.
x
Screw the protective caps to the couplings.
x
Store the hoses properly in the hose trays.
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