Merik 711MD Manual Del Usuario página 13

ASSEMBLY STEP 4
For Sectional and One-Piece Doors Only
Install the Chain/Cable
and Attach the Sprocket Cover
INSTALLING THE
CHAIN/CABLE
1. Pull the cable loop from
the carton and fasten it to
the trolley with a master
link from the hardware bag
(Figure 1).
• Push pins of master link
bar through cable loop 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. With the trolley against the screwdriver, dispense
the cable around the pulley.
3. Continue along the rail and around the motor unit
sprocket (Figure 2). The sprocket teeth must
engage the chain. Continue forward to the trolley
threaded shaft.
4. 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.
5. Remove the screwdriver.
ATTACHING THE SPROCKET COVER
Position the sprocket cover over the motor unit
sprocket so the three holes in cover align with the
three holes in mounting plate. Attach with #8x3/8"
hex screws provided (Figure 3).
Figure 3
Hex Screws
#8x3/8"
Sprocket
Mounting
Plate
Leave Chain
Inside Carton to
Prevent Kinking.
Keep Chain
Taut When Dispensing
13
WARNING
To avoid possible SERIOUS INJURY to fingers from
moving garage door opener:
CAUTION
• ALWAYS keep hand clear of sprocket while operating
opener.
• Securely attach sprocket cover BEFORE operating.
Figure 1
Master Link
Clip-On Spring
Master Link Cap
Cable
Loop
Cable
Pulley
INSTALL CHAIN & CABLE
IN THIS DIRECTION
Figure 2
Master Link
Clip-On Spring
Master
Link Cap
Flat end
of Trolley
Threaded
Shaft
Master
Link Bar
Install Chain
Motor Unit
In This Direction
Sprocket
Chain
Pin
Notch
Pin