Craftsman 139.30437 Manual Del Propietário página 10

ASSEMBLY STEP 4
Install the Chain/Cable
1. Pull the cable around the idler pulley and toward the trolley.
2. Connect the cable to the retaining slot on the trolley, as shown:
• From below, push pins of master link bar up through cable
link and trolley slot.
• 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.
3. With the trolley against the screwdriver, dispense the
remainder of the cable/chain along the rail length toward the
motor unit and around the sprocket. The sprocket teeth must
engage the chain.
4. Checkto make sure the chain is not twisted, then connect it to
the trolley threaded shaft with the remaining master link.
5. Thread the inner nut and lock washer onto the trolley threaded
shaft.
6. Insert the trolley threaded shaft through the hole in the trolley.
Be sure the chain is not twisted.
7. Loosely thread the outer nut onto the trolley threaded shaft.
8. Removethe screwdriver.
Master Link Master Link
Clip-On Cap
Spring
Retaining
Slot
To avoid possible SERIOUSINJURYto fingers from moving
garage door opener:
• ALWAYS keep hand clear of sprocket while operating
opener.
• Securely attach sprocket cover BEFORE operating.
Chain Sprocket Cover
Master Link
Clip-On Sprin
Master Link Cap
Idler Pulley
Trolley
©
Trolley Threaded Shaft
HARDWARESHOWN ACTUALSIZE
Master Link
10