Assembly step 4, Figure 3 – Craftsman 139.53674SRT User Manual
Page 10
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Assembly Step 4
Install the Chain/Cable &
Attach the Sprocket Cover
-isci'rsiivj ,arton
Serious injury can result if fingers become
entangled in moving opener sprocket. Attach
sprocket cover securely. Never operate opener
while your hand is near the opener sprocket.
Figure 2
Opener
Sprocket
Taut When Oispensing
' Detach the cable loop from the carton and fasten it
to the trolley with a master link from the hardware
bag. See master link procedure. Figure 1.
>
With the trolley against the screwdriver, dispense
the cable around the pulley.
>
Proceed back around the opener sprocket.
Figure 2. Be sure sprocket teeth engage the
chain. Continue forward to the trolley
threaded shaft, Rgure 3.
• Use the second master link to connect
the chain to the flat end of the shaft.
Check to make sure the chain Is
not twisted.
• Remove the screwdriver.
Figure 3
Master Li(4(
Clip-On Spring
Master Link
CSpOn Spring
Install Chain and Cable
Irt This Direction
Sprocket
Cover
Back Tab Slot
Top oT Opener
Master Unk Procedure:
Push pins of master link bar
through cable loop atxl hole in
front end of trolley. Push cap
over pets and past notches.
Slide ctip^ spring over cap
and into notches until both
pins are securely locked.
From Tab Slol
To attach the sprocket cover:
• Insert the back tab in the opener slot. Squeeze the
cover slightly and insert the front tab in the slot on
the mounting plate.
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