Chamberlain FS2 Security+ Owner's Manual page 14

ASSEMBLY STEP 4
For Sliding and Swinging Gates Only
Install the Chain and Attach the
Sprocket Cover
INSTALLING THE CHAIN
1. Dispense a few inches of chain
from carton and fasten to trolley
with a master link from the
hardware bag. (Figure 1).
• Push pins of master link bar
through chain link and hole in
front end of trolley.
• Push master link cap over pins and past pin notches.
• Slide clip-on spring over cap and onto pin notches until both
pins are securely locked in place.
2. To prevent the trolley from jamming against the opener during
operation, position trolley 5 to 15 cm from the stop hole as
shown. Then dispense the chain around the opener sprocket
(Figure 1). Make sure the sprocket teeth engage the chain.
• Proceed around to the pulley bracket and forward to the
threaded trolley shaft.
3. Use the second master link to connect the chain to the flat end
of the shaft (Figure 1). Check to make sure the chain is not
twisted.
ATTACHING THE SPROCKET COVER 1215EM ONLY
Insert the back tab in the slot on the back of the mounting plate.
Squeeze the cover slightly and insert the front tab.
Figure 1
Install Chain
in this Direction
Sprocket
Back
Tab Slot
Leave Chain and
Cable Inside
Dispensing Carton
to Prevent Kinking.
Keep Chain and Cable
Taut When Dispensing
Mounting
Plate
Motor Unit
To avoid possible SERIOUS INJURY to fingers from moving
opener:
• ALWAYS keep hand clear of sprocket while operating opener.
• Securely attach sprocket cover BEFORE operating.
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