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 (Figure 1):
• 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 toward the
motor unit into the slot on the chain spreader, around
the sprocket onto the chain spreader and continuing to
the trolley assembly. The sprocket teeth must engage
the chain (Figure 2).
4. Check to make sure the chain is not twisted, then
connect it to the threaded shaft with the remaining
master link.
5. Thread the inner nut and lock washer onto the trolley
threaded shaft (Figure 3).
6. Insert the trolley threaded shaft through the hole in the
trolley. Be sure the chain is not twisted (Figure 4).
7. Loosely thread the outer nut onto the trolley threaded
shaft.
8. Remove the screwdriver.
Chain
2
Spreader
I-igure "u" Bracket
Bolt
Motor Unit
Sprocket
Toavoid possible SERIOUSINJURYto fingers from moving
garage door opener:
• ALWAYSkeep hand clear of sprocket while operating
opener.
• Securely attach chain spreaderBEFOREoperating.
Dispensing Carton
_nea_le Cihspin2s?dgcable
to Prevent Kinking.
Keep Chain and Cable
Taut When Dispensing
Figure 1 Master Link_
Clip-On Spring'ff;'q, Master
Link Cap_ '
Master Link
Clip-On Spring _ Master /_
cap
I I _ I II
, . ::
ly
!_u-_ '__ Threaded i i Pin
Cable Sh ft !i /.otch
Link _" _d_cLJ/_\ ; ! /
/_ z/_,-__,L_,_, / \ _..,I_ Master
/ L__ ',Round _!',,J Link Bar
/ ._ .P:J'IC.', _ \ - Hole v
Idler _J_ __,_'J t-'_l ; \Slotted
PuIIeY__.__.._,_'/_,,,_ _ Hole
i i
i i
_ .!_!_ Master
Cable ,IYA.,:_ Link Bar
Figure 3
.-'_" Inner Nut
•-" Lock 5/16"
Washer
5/16"
Trolley
Threaded
Shaft
Figure 4
Trolley
Threaded
Shaft
Round
Hole
10
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