Owner's Manual

4.4
The Wall Mount Operator can be assembled for right hand
mounting above or below the door shaft. Fig.5A.
NOTE: The operator output shaft extends 3-7/8" on each side of the
operator frame.
1) Attach 12 tooth sprocket to operator output shaft.
2) Align keyways and insert key into sprocket and output shaft
keyway. Do not tighten set screw at this time.
nethgit ton oD.tfahs rood ot tekcorps rood hcattA)3
at this time.
4) Assemble chain using chain connecting link.
5) Place assembled chain over door shaft sprocket and operator sprocket.
6) Raise or lower operator to remove slack from the chain.
7) Be certain operator output shaft is parallel with door shaft.
8) Align chain and secu
re
operator to wall or mounting pad.
Fig.5
B.
9) Tighten operator sprocket set screws.
INSTALLATION TIP:
While sprocket set screws are loose,
if possible, manually operate door to
help align chain. A properly tensioned drive chain should deflect no
more than 1/2" when thumb pressure is applied mid-way between the 2
sprockets.While there is no hard and fast rule governing chain tension, it
must be tight enough to prevent clicking, popping and jumping the
teeth of the sprocket. The 1/2" guideline will insure sufficient tension.
NOTE: If using slotted mounting holes to mount unit
, you must use at
least 2 lockdown holes in opposite corners to firmly mount unit to wall.
Fig. 5B
.
Sectional Doors—Chain Couple
Figure 5B
Figure 5A
www.geniecompany.com 08-12
Medium Duty Operator
GCL-MJ&MH