CHAIN ADJUSTMENT
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Adjusting the #50 Chain Coupler Nut Assembly
The #50 lift chain should have no slack when the lift is raised
without the cradle and normally is slightly loose when the lift
is under a load. If an adjustment is required proceed as fol-
lows.
Do not make this adjustment when the cradle is on
the lift.
(If the lift is loaded when the adjustment is made, it
will be too tight when loaded.)
1. Remove the cradle and
rotate the winch wheel to raise
the telescoping sections until
the coupler nut assembly is
accessible and approximately
10” of #50 chain is visible.
Approx. 10”
2. Loosen the jam nut from the
coupler nut.
A
A
B
B
3A. Tighten the tension bolt using a 5/16” hex key just until the slack in the chain
is removed.
3B. Add 1/4” turn to achieve the correct tension.
-DO NOT OVER TIGHTEN:
Too much tension on the #50 lift chain will exert a
side-pull on the telescoping sections, causing them to stick and bind.
-Retighten the jam nut against the coupler nut to lock the adjustment.
Adjusting the #40 Winch Drive Chain
The #40 winch drive chain should be taut but not overly tight-
ened as this will exert excess side load on bearings and drive
components. To achieve correct tension proceed as follows.
Do not make this adjustment with the cradle on the lift.
1. Start with the empty lift
completely lowered. Remove the
chain guard by removing the top
and bottom bolts.
2. Loosen, but do not remove,
the two winch mount bolts.
3A. Lift the brake handle
with right hand to allow the
drive chain to find a neutral,
tensionless position.
3B. Pull the winch back to
remove excess slack from
the drive chain and hold while
retightening the two mount
bolts. Do not apply too much
tension on the chain. Apply hand
pressure only. Do not use a lever
of any kind to increase chain
tension.
4. To check for proper tension, rotate the winch 1/2 turn to tension the lower
portion of the chain. Move the upper portion of the chain up and down and
measure the vertical movement of the upper portion of the chain midway
between the sprockets. The correct distance of this movement should be
approximately 3/8” to 1/2”. If necessary repeat the previous steps until the
correct tension is achieved. Replace the winch drive chain guard when the
adjustment is complete.
3/8” - 1/2”
Movement
