Arm Assembly - ultracomfort UC214 Service Manual

Arm Assembly Replacement
Tools needed: Needle nose pliers, P2 Phillips screwdriver, T30 screw bit, wire cutters, zip
ties, 3/8 inch socket, a stool or stand for placing the chair upside down.
1. Unplug the transformer from the wall outlet.
2. Reach down into the chair's side pocket until you feel the disconnect latch on the hand control
extension.
3. Pull back on the disconnecting latch.
4. Put one hand on the back of the extension wire plug base and one on the hand control plug
base and pull the two pieces apart.
5. Gently push the chair over onto the footrest, turn it upside down or, gently push it over onto its
side, opposite of the hand control.
6. Use a Phillips screwdriver to remove the wire clamp used to secure the extension cable to the
bottom of the armrests. Make sure you save the clamp and screw.
7. Remove a few staples on the arm assembly to allow the extension wire to be pulled out through
the fabric pocket.
8. Pull the extension cable through the fabric pocket.
9. Remove the four (4) T30 lag screws, eight (8) on
models (540M-26, 542M-26, 542-ME6, 550-M26) that hold
the lift frame to the arm assembly.
10. Remove the hitch pin(s), clevis pin(s), and washers
that fasten the recline strap(s) to the recline bar.
11. Lift the lift frame out of the chair shell and
place it off to the side.
12. Use the 3/8 inch socket to remove the two (2) bolts that fasten each scissor mechanism to the

arm assembly.

While this next step can be done alone, it does require extra attention. You
must remove the arm assembly without twisting the frame. Excessive twisting will cause
the board holding the arms together to snap.
13. Stand behind the chair and pull the arms away from the chair being careful not to get the
material snagged in the scissor mechanisms.
14. Place the arm assembly to the side.
15. Place the new arm assembly in place so that the bolt holes in the scissor mechanisms line up
with the bolt holes in the armrest.
16. Install the two (2) bolts that fasten each scissor mechanisms to the new arm assembly.
17. Make sure the footboard is completely closed.
Note: When installing the lift frame the footboard must be completely closed when you
fasten the lift frame to the armrest assembly or the footboard will not close properly.
18. Place the lift frame onto the chair shell.
19. Use the hitch pin(s), clevis pin(s), and washers to fasten the recline strap(s) to the recline bar.
20. Use the four (4) T30 lag screws, eight (8) on models (540M-26, 542M-26, 542-ME6, 550-M26)
to fasten the lift frame to the arm assembly.
21. Reinstall the staples that were removed in step 8.
22. Reinstall the wire clamp.
23. Gently turn the chair back over onto its legs.
24. Plug in the Smart Tek® hand control to the extension cable.
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