Operating instructions

5. Loosely attach the two remaining drive spacers to
the sprocket as shown in figure 5, using M8 x16 bolts
and spring washers. The slots should correspond in
the base plate to achieve desired distance between
sprocket and base plate, see figure 5. Ensure correct
fit and spacing of all drive spacers, then firmly tighten
all loose connections. This completes installation of
the Chamberlain Easy Fit Sprocket Kit (Pat. pend.).
9
Install the stub sprocket
at a suitable position
Use weight of opener to tension
chain, then tighten mounting
bolts. Do not force the opener
downward.
CHAIN AND SPROCKET LINKAGE
Fit and align the stub sprocket to the unit and install the drive chain. The drive chain
should be tensioned using the weight of the motor unit to remove slack. Do not force
the opener downward to tension the chain.
figure 5
INSTALLATION STEP 2 (CONTINUED)
M8 x 16 bolts
M8 spring washers
4. Attach to sprocket using M8 x 16 Hex bolt and M8
spring washer as shown in figure 4.
figure 4
drive spacer
M8 x 16 bolt
M8 spring washer