17
Installation (Cont’d.)
Screw-type safety couplings
•
To tighten the couplings, make sure that the system
is depressurized. Push the couplings completely
together to full engagement, and tighten the
locking ring of the female coupling to the male
coupling. If the couplings are not fully tightened,
the tool will not operate.
•
To loosen the couplings, make sure that the system
is depressurized. Loosen the locking ring of the
female coupling from the male coupling and pull
the couplings apart.
Toothed screw-type safety couplings
The coupling is identical to the screw-type safety
couplings, but both coupling are toothed. The male
coupling has a toothed locking ring which is axially
displaceable. The female coupling also has a toothed
ring.
•
To tighten the couplings, make sure that the system
is depressurized. Push the couplings together and
engage the teeth of male coupling and the female
coupling. If the couplings are not fully tightened,
the tool will not operate.
•
To loosen the couplings, make sure that the system
is depressurized. Pull the toothed locking ring
axially and loosen the locking ring.
Quick couplings
•
To tighten the couplings, make sure that the system
is depressurized. Pull back the pullback ring on
the female coupling, push the male coupling
into the female coupling and release the pull-
back ring. Screw the locking ring on the female
coupling against the pullback ring.
•
To loosen the couplings, make sure that the system
is depressurized. Screw the locking ring on the
female coupling from the pullback ring. Pull back
the pull-back ring to remove the male coupling
from the female coupling.
4.1.2
Connecting the hydraulic hoses
Warning:
• Make sure that the system is depressurized.
• Make sure that the hydraulic hoses are securely connected to both the pump
unit and the tool. Make sure that there is no clearance between the male couplings
and the female couplings. If the hydraulic hoses become loose, no hydraulic oil
will flow through the hoses and the tool will not operate.
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