Trumpf TruSystem 7000, Service Manual

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Quick-connect coupling on the assembly
260
Service Manual TruSystem 7000 Operating Table – 1 764 986 – 10/2016
23 Quick-connect coupling on the assembly
Open
The quick-connect couplings can be removed or attached only if the
system is depressurized. For this reason, always release the brake
on the operating table before working on the hydraulic system. If the
brake cannot be released using the control unit, press the
E
MERGENCY RELEASE
button on the table base. The label over the
button will then have to be replaced. Important: do not place the
operating table on its side with the column keypad pointing down.
In this case, air would get into the hydraulic hoses when the
hydraulics are activated.
Circlip pliers [1] are used to open the couplings on the assembly.
The clamp [2] can be stretched too far in this process and the
coupling may not lock in properly afterward. Therefore, circlip pliers
with a check screw should be used to open the quick-connect
couplings. The width of the opening on the pliers should be set to
13.2 mm.
Close
Always check the width of the clamp [2] opening before
connecting the coupling. The distance must be 9.5 mm. If it is not,
press the clamp [2] on the coupling to the opening width of 9.5 mm.
Emergency release If there is no way to release the pressure, the quick-connect
couplings can be removed in an emergency as follows:
1. Unscrew the coupling from the valve block or the hexagon on
the hose by 1 or 2 turns.
2. Cover the coupling with a lint-free cloth since oil drops can
spurt out. Open the quick-connect coupling and remove it.
3. Perform service work.
4. Connect the quick-connect coupling.