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CAUTION!
Take care that the port ‘T’ of the rescue tool is always connected to the port ‘T’
of the mono-coupling.
10.3.5 Quick-disconnect-couplings
The quick-disconnect-couplings must be replaced in the event of:
- external visible damage,
- the locking device not working,
- hydraulic
fl uid continually leaking in a coupled/uncoupled state.
WARNING / CAUTION!
Never repair couplings: they are to be replaced by new original HURST parts!
During assembly, tighten the connection nut of the hose assembly with a torque of M
A
= 35 Nm
/
25.8 ft.lbs.
.
Procedure:
1. Loosen the connection nut of the hose assembly and remove the coupling.
2. Position the new coupling and tighten the connection nut of the hose assemblies
with a torque of M
A
= 35 Nm /
25.8 ft.lbs.
.
CAUTION!
The return hose, which is screwed into the port “T” of the rescue tool, must
always be equipped with a quick-disconnect-coupling (male).
However the supplying hose line must be equipped with a quick-disconnect-
coupling (female).
10.3.7 Labels
All damaged and/or illegible labels (safety notices, type plate, etc.) must be renewed.
Procedure:
1. Remove damaged and/or illegible labels.
2. Clean the surfaces using industrial alcohol.
3. Attach new labels.
Ensure that you attach the labels in the right position. If you are no longer sure about this,
then please contact your authorized HURST dealer or HURST itself.
10.3.6 Control
valve
Should the safety valve be deformed so severely that the star grip no longer functions
correctly (e. g. loss of the deadman-function, etc.), the valve must be replaced in its entirety.
Have repairs carried out by an authorized dealer, by personnel specially trained by HURST,
or by HURST customer service only.
4. Position the new coupling and tighten the connection nuts of the hose assemblies
with a torque of M
A
= 40 Nm /
29.5 ft.lbs.
. After that, push the cover of the couplings back
on and replace screws “A”.
