Prism Medical UK transactive tra, Техническое руководство

Страница: 18 / 45

Technical manual August 2009
Rev: 01/08/09 Page:
18
E2 - Replace Main and Auxiliary PCB (Printed Circuit
Board)
IMPORTANT NOTE: Use extreme caution when servicing the hoist. The PCB should be handled
with care. Use of proper E.S.D. protection to prevent damage to the circuit board is highly
recommended. Contact with metal objects (screw drivers, rings, etc.) will damage the PCB.
1.
Before starting, disconnect the RED battery wire and all wire harnesses and all air tubes
(remove off from the steel pins) from the PCB.
2.
Before installation of new PCB, test the new PCB to ensure that the diagnosed problem will
be solved. Attach all wire harnesses and reconnect the battery wire. Test hoist unit. If hoist
unit still does not function, the problem is elsewhere. Contact customer service for further
instructions.
3.
Remove the mounting screws.
4.
Carefully remount the PCB and tighten screws. Do not over-tighten screws.
5.
Attach all wire harnesses and reconnect the battery wire. Test hoist unit.
6.
To replace an Auxiliary PCB, pinch the stand-offs and pull the PCB right off, this will also
unplug the Auxiliary PCB from the Main PCB.
Disconnect harness Remove harnesses Unscrew screws