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10.3.3 Changing or tightening hoses
Hoses of the pressure and/or return pipe leaks or hoses are defective. Tighten the hoses on
the safety valve.
(Please note! Observe torque of M
A
= 40 Nm /
29.5 ft.lbs.
!)
REMARK:
If you want to change the hoses, you have to dismantle the couplings.
CAUTION!
usage of mono-coupling-system:
Take care that the port ‘T’ of the rescue tool is always connected to the port ‘T’
of the mono-coupling.
Quick-disconnect-coupling-system:
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).
Procedure:
1. Loosen the 2 screws ‘B’ in the handle sleeve
(hexagon socket)
2. Remove handle sleeve ‘A’.
3. Dismantle hose ‘C’ and sealing ring ‘D’. (There
is no need to carry out this point if the hoses
are just being tightened).
4. Screw the hose with sealing ring back on.
5. Tighten the hose connection on the valve.
(Please note! Observe the necessary torque of M
A
= 40 Nm /
29.5 ft.lbs.
!)
6. Then replace handle sleeve and screws, tighten (Torque: 5Nm /
3.7 ft.lbs.
) and secure it
with threadlocking fl uid (e. g. LOCTITE 243).
B
C
D
assemble
dismantle
A
