6 Maintenance and Adjustments
REGULAR MAINTENANCE (continued)
•Screw drive models: Verify shuttle release lever is in ENGAGED
(UP) position (pull release handle toward opener and let go)
•Chain/belt drive models: Verify bullet is engaged to carriage.
Pull/release cord down and back towards opener and let go.
Screw Drive | Belt/Chain Drive |
Opener | Opener |
Reset Open/Close Travel Limit
Performing all eleven (11) Limits/Force setting steps (see pages
NoTE: The opener will not close the door automatically unless the
Disengaging and Engaging Carriage/Bullet
| Engaged |
| Disengaged |
Disengaged | Engaged |
|
–Operate door using a remote or wall console.
–Door will
CORRECTIVE MAINTENANCE
Changing Light Bulbs
Screw Drive
Opener 
Engaged
Disengaged
To engage shuttle to carriage, pull down and toward the opener.
To disengage shuttle from carriage, pull down on relaese hanfle.
Belt/Chain Drive
Opener 
Disengaged
Engaged
To engage bullet to carriage, pull the release handle down and toward the opener.
To disengage bullet from carriage, pull relaese handle down and toward the door.
WARNING
•Use extreme caution when working from a ladder or step stool.
•When replacing light cover, make sure wires are not pinched or near moving parts.
1.Disconnect power to door opener.
•Open powerhead light cover.
•Remove light bulb(s).
•Replace light bulb(s).
–DO NOT use light bulbs with greater than 100 Watt rating, PowerLift® 900, GPower™ 900 require light bulbs of no more than 60 watts. Compact CFL's may also be used.
–Close powerhead light cover.
2.Reconnect power to door opener.
•Test light operation.
Remote Battery Replacement
Replace remote battery with a CR 2032 coin cell battery.
1.Open remote case using a washer or coin that fits into the slot at top of remote.
2.Replace battery.
3. Align components and snap case closed.
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