9 Troubleshooting
Try to find a solution for the problem using the tables. If you cannot find a solution for the
problem, contact your local HYTORC representative.
9.1 Tools
Problem Possible cause Solution
The tool does not move. The hose couplings on the tool
and the pump unit are not se-
cured properly.
Securely tighten the female
coupling to the male coupling.
The tool stalls. The reaction pawl was not acti-
vated.
See
Disengagement button for
reaction pawl
on page 27.
The piston in the tool does not
retract.
The hose couplings on the tool
and the pump unit are not se-
cured properly.
Securely tighten the female
coupling to the male coupling.
The linkage between the piston
and the drive arms is damaged.
Replace the defective part.
The pressure in the system
does not increase.
There is oil leakage due to a
defective piston, piston seal or
O-ring.
Replace the defective part.
There is leakage in the pres-
sure relief valve and/or the two
oil line connections.
Tighten the leaking connection.
Use a 9/16” open-end wrench.
A motor coupling is worn. The
pump makes sounds like peb-
bles in a tin can.
Replace the motor coupling.
The air shut-off valve fails due
to excessive moisture and/or
dirt in the air supply.
Clean the air shut-off valve and
the air lines.
The valve in the remote control
fails.
Replace the valve in the remote
control.
The tool leaks externally. Blind plugs or end caps are
worn/damaged or not secured.
Replace the blind plugs and/or
the end caps.
The O-ring or the gland seal in
the piston is defective.
Replace the defective part.
The tool operates backwards. An even number of hoses has
been connected.
Connect an odd number of ho-
ses. See
Hydraulic hose con-
nections
on page 19.
The male coupling and the fe-
male coupling have been inter-
changed.
Use a HYTORC twin hose.
The tool moves slower than
usual.
There is a leakage in the sys-
tem.
Adjust the pump pressure to
700 bar (10,000 psi) and switch
off the pump unit while holding
the start button. The pump
pressure must decrease to 100
bar (1,450 psi). If the pump
pressure decreases to 0 bar (0
psi), contact your local HY-
TORC representative.
The ratchet returns with a
stroke.
The square drive is defective. Replace the defective part.
Troubleshooting
37 - 001 - 35
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