ASSEMBLY STEP 4
INSTALL THE BELT
1. Pull the belt around the idler pulley and toward the trolley. The ribbed
side must contact the pulley.
2. Hook the trolley connector into the retaining slot on the trolley as shown
(Figure 1).
3. With the trolley against the screwdriver, dispense the remainder of the
belt along the rail length toward the motor unit and around the sprocket
(Figure 2). The sprocket teeth must engage the belt.
4. Check to make sure the belt is not twisted. Connect the trolley threaded
shaft with the master link (Figure 3).
l
Push pins of master link bar through holes in end of belt and trolley
threaded shaft.
l
Push master link cap over pins and past pin notches.
l
Slide clip-on spring over cap and onto pin notches until both pins
are securely locked in place.
5. Remove the spring trolley nut from the threaded shaft.
6. Insert the trolley threaded shaft through the hole in the trolley.
Threaded Shaft with
Spring Trolley Nut
Master Link
Trolley
Threaded
Shaft
Pin Notch
Sprocket
Master Link Clip-On Spring
Master Link Cap
Master
Link Bar
Figure 2
Figure 3
HARDWARE SHOWN ACTUAL SIZE
Trolley Connector
Figure 1
Retaining
Slot
ASSEMBLY STEP 5
TIGHTEN THE BELT
1. By hand, thread the spring trolley nut on the threaded shaft until it is
finger tight against the trolley. Do not use any tools. Remove the
screwdriver.
2. Insert a flathead screwdriver tip into one of the nut ring slots and brace it
firmly against the trolley.
3. Tighten the spring trolley nut with an adjustable wrench or a 7/16" open
end wrench about a quarter turn until the spring releases and snaps the
nut ring against the trolley. This sets the spring to optimum belt tension.
Nut Ring
BEFORE
1"
(2.5
cm)
Nut Ring
AFTER
1-1/4"
(3.18 cm)
Spring
Trolley Nut
Nut Ring Slot
Spring Trolley
12
