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Part 2:INSTALLING CHAIN DRIVE
STEP 1
NOTE: Before beginning installation make sure you have chain roller
Determine which side of the door you are installing the air operator on; you will need at least 6” of shaft beyond track bracket for installing
See Figure A.
STEP 2
Position the chain sprocket assembly ( part # spk 1000 ) onto shaft against bearing as shown in figure B. Do not tighten set screws until you have hung operator around sprocket.