Husky T-124C Owners Manual And Assembly page 23

The chains should not sag or be too tight. Too much tension can
cause excess wear of the rear axle, axle sprocket, and coaster
brake hub. About 3/8" of slack when pressing the center of short
chain and ½" of slack when pressing the center of long chain is
ideal.
5. After you have tightened the frame bolts, test the drive system
by cranking the tricycle. Remember that you can only crank in one
direction (forward). Backward cranking engages the coaster
brake. If you notice excessive pull or chain jumping, check the
chain tension and make sure that coaster brake hub is centered
on the frame. Also check the rear axle sprocket to make sure it
lines up with the coaster brake sprocket.
STEP 2 - Mounting the Wheels
Your tricycle has one "Drive Wheel" (Right) and one "Freewheel"
(Left). Both rear wheels on T-124C use the same hubs and are
identical. You can use them on either side. Drive side of the
axle has a flange with 3 pins that fit into the rear wheel's hub. To
mount the drive side wheel of T-124C, remove the axle nut and
washer, push the wheel over the axle so that the 3 drive pins are
inserted with the matching holes on the hub. See the picture.
Replace the washer and tighten the axle nut. DO NOT OVER
TIGHTEN THE AXLE BOLT. TOO MUCH TORQUE WILL
DAMAGE THE BEARINGS.
T-124C
Drive Side Pin
T-326's drive side is different from T-124C. The drive side is
square machined to fit the drive-side wheel hub with square
machined bore. Once the wheel is properly attached to the axle,
secure the wheel with the 8mm hex bolt and aluminum hub
cap/washer. Note that the hub cap for drive side is different from
the freewheel side.
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