V. Removal and Replacement of Components
IMPORTANT
Ensure all components, fasteners and thumbscrews are securely in place after the equipment is serviced.
A. Removal and Replacement of Gear Motor | Adjustment Bolt |
|
1)Unplug the unit from the electrical outlet.
2) Remove the panels. | Bolts |
|
3) Disconnect the gear motor wiring harness.
4)Loosen the adjustment bolt, then loosen the four bolts securing Gear Motor Bracket
(B).
5)Slide Gear Motor Bracket (B) up to its highest position and retighten.
6)Remove the chain.
7)Loosen the socket set screw securing the sprocket, then use a gear puller to remove the sprocket.
8)Remove the bushing from the barrier and slide the gear motor wires free of the barrier. Release the wires from the wire tie on the barrier.
9)While supporting the gear motor and barrier, remove the four bolts securing them to Gear Motor Bracket (B). Carefully remove the motor and barrier.
Chain
Bolts
Lower sprocket | Gear Motor | |
takes a 2.5 mm | ||
Bracket (B) | ||
allen wrench. | ||
Sprocket |
| |
Bushing |
| |
| Gear Motor |
| Barrier |
Sprocket | Gear Motor |
| |
| Bracket (B) |
| Bolt |
10)Install the new gear motor, assembling the removed parts in the reverse order of the above procedure.
Note:
•When weight (2.2 lb) is applied to the chain at the center, the displacement must be
0.31to 0.51".
•Lubricant (Class SAE 20) must be applied to the chain using a cloth.
11)Replace the panels in their correct positions.
12)Plug the unit back in.
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