Vancare C450, Техническое руководство

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E
7
- Adjust/Replace UP/DOWN Micro Switch Assembly
IMPORTANT NOTE: Use extreme caution when performing internal servicing on the lift. Ensure
that the battery has been disconnected before starting.
The UP/DOWN micro switch assembly controls numerous safety functions and maintains an
absolute control over the polarity logic of the entire system. The primary functions are to control
the UP limit, Down limit, monitor “slack tape” condition and prevent the motor from winding the lift
tape in the wrong direction.
1. Have the strap extended out about 1’ & remove the lift cover as per section B1, Getting
Access to the
C-450/C-625
.
2. Remove the PCBs as per section E2 to gain access to the battery arm bracket.
3. Carefully lift away the centre, elliptical display panel plate.
4. Using a Philips screwdriver unfasten the two #6-40 pan head screws to remove the battery
bracket of the battery that is farthest from the gearbox.
5. Remove this battery as per section E1.
6. Using a Robertson #1 screwdriver, unfasten and remove the lift sidewall frame next to
location of the recently removed battery.
7. On the opposite sidewall frame, remove only the 2 screws adjacent to the side closest to the
strap opening panel with the Robertson screwdriver.
8. Using an M3 Allen Key remove the M4 socket head cap screw on the lift’s bottom panel (with
the strap opening) holding it to the long PCB mounting panel.
9. Using an M3 Allen Key remove the M4 socket head cap screw on the lift’s bottom panel (with
the strap opening) holding it to the long gearbox mounting panel.
10. Carefully slide off the lift panel with the strap opening.
11. At this point make sure that nothing is jammed inside the assembly and that both rollers can
rotate. Verify that the roller mechanisms are able to activate the micro switches.
12. Cut the cable tie to access the micro switch wire harness.
13. Using a Phillips screwdriver remove both micro switches and replace the whole micro switch
wire harness.
Be very careful when handling this part as the micro switch can be easily
damaged.
14. Reassemble lift and test.
C-450/C-625 Technical Manual 031417 Page 23