Limit Switch

Within this section it will explain the correct procedure on removing and reinstalling the Limit switch unit for servicing procedures or replacement.

Removal

Step 1 – Remove external covers off the Hoist (refer to section 9.1)

Step 2 – Remove the PCB from the Hoist (refer to section 9.2)

Step 3 – Remove the Batteries from the Hoist. (Refer to section 9.3)

Step 3 – Remove the Handset Wiring Cable from the Hoist (Refer to section 9.12)

Step 4 – Remove Bottom Cover (refer to section 9.6)

Step 5 – Remove the E-Stop Assembly. (Refer to section 9.14)

Step 6 – Using a 3mm Allen Key, remove the four screws shown to release the limit switch assembly.

Step 7 – Remove the Limit Switch Assembly from the Hoist.

Refitting / Replacement

Step 8 – Refitting is a reversal of the removal process noting the following point:

A. When fixing the individual limit switches, fix the black and brown wire block to the back face of the Hoist. (Opposite face to the PCB.)

B. Route the black and brown wire along the Chassis side face underneath the Lifting Motor.

C. Fix the black and red wire limit switch to the front face of the Hoist. (This is the PCB side)

D. Each Limit Switches must be set when refitted into position, as can be seen in the image the fixing point allows adjusting placement. To set each Limit Switch correctly, thread the screws to the Limit Switches but do not tighten. (See next step)

E. Slide the Limit Switch towards the roller until it is activated. This will be apparent as the Switch makes a clear “click” noise when activated. Once this point has been determined, slide the Limit Switch back a couple of millimeters and tighten the screws to fix in place.

F. To test the function of the switch, manually press the roller inwards, the Limit Switch should activate, ENSURE that the Limit Switch deactivates when the roller is released.

G. Repeat these steps for both Limit Switches.