830872-0001 REV 12/07/2022
©Copyright 2022 Wayne Dalton, a division of Overhead Door Corporation
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23. LEVEL DOOR (IF NEEDED)—If during previous step the door rolled up level and straight, skip
this step.
A. Check that guides are plum, square, level, and are properly mounted onto floor and wall.
B. Check that the pipe is level.
C. Check that the attachment of the curtain is straight on the pipe.
If all of the above is correct and the door still rolls up out of level, a shim may need to be added, as shown
in Figure 41.
Shim materials:
• A piece of rubber is the desired material for a shim.
• A piece of cardboard could be used but may deteriorate over time.
• Use a 1/8” x 6” x 6” thick piece of material and increase thickness or pieces depending on the result
acquired, as shown in Figure 42.
Application of shim:
• To determine the side in which the shim will be applied, the door will need to be in the open
position.
• When facing the door, the bottom bar will be unleveled. The lower side of the bottom bar will be
the side in which the shim needs to be placed.
• The hood may need to be loosened or removed for the application of the shim.
To apply the shim, two laborers might be required.
Installing the shim:
D. Close the door fully.
E. When door is at bottom make sure door is in hand chain mode.
F. Turn off the power to the motor (if applicable) to ensure safe application of the shim.
G. Backwind the door using the chain. Lock chain in place using chain keeper.
H. As the curtain is wound backwards apply the shim to the lower side between the pipe and slats or on
the ring of the low side.
I. Restore power to the motor (if applicable).
J. Check the level of the bottom bar while door is in the open position. If it is not level, add a second shim
and check again.
NOTE:
If the door has wind locks there may be some stacking interference in the wind locks as the door is wrapping during operation. This is a normal
characteristic. For wind lock applications the doors bottom bar should be level at the open position.
Bottom Bar Not Level
Figure 41
Shim
Curtain
Ring
Pipe
Figure 42
Operator Install (continued)
WARNING
When the door is wound backwards there is a force in which the door will want to wind forward.
Secure the door in this position by locking hand chain onto chain keeper to prevent injury.
