How to Guide

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).
• Push pins of master link bar through holes in end of belt and trolley
threaded shaft.
• 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.
5. Remove the spring trolley nut from the threaded shaft.
6. Insert the trolley threaded shaft through the hole in the trolley.
Master Link
Figure 3
Threaded Shaft with Spring Trolley Nut
Threaded Shaft
Master Link
Sprocket
Figure 2
Figure 1
Trolley
Connector
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
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