Revised: 7/22/2015
2 of 8
By: HA
carriage bolts. Place the two 5/16” locking nuts and washers back on and tighten to hold but
leave loose enough to allow for chain adjustment.
3.
Place the chain over the sprocket on the front drive. Use the two adjusting bolts inserted in
the rivet nuts (captive nuts) to tighten the chain. There should be a little give to the chain.
Now tighten the two 5/16” locking nuts and washers. See
Figure 2
below.
Figure 2: Mechanical Assist Installation and Chain adjustment
4. There is a slot at the back of the mechanical assist casing located approximately one foot
down from the top. This slot allows you to mount and secure the mechanical assist unit to a
centre shelving post on back-to-back units. When a single shelving unit is used, mount to a
TRB Support. Three self-drilling screws are supplied for mounting (located in the Drive Handle
Assembly box). See
Figure 3
below.
Loosen 6 self-drilling
screws to remove the
cover
Mechanical Assist Cover
Adjust 2 bolts to
tighten the chain
Remove two 5/16 nuts and washers
