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Thumb Saver Wheel Lock
Assembly, Installation and Operating Instructions
Kit No. 1109379
SAVE THESE INSTRUCTIONS
NOTE: Check all parts for shipping damage. In case of damage, DO NOT use. Contact Carrier/Invacare
for further instructions.
SAFETY SUMMARY
To ensure the safe and proper installation of the Thumb Saver Wheel Lock, these instructions
MUST be followed:
GENERAL WARNING
DO NOT install this equipment without first reading and understanding this
instruction sheet and the owners manual provided with the wheelchair. If you
are unable to understand the warnings, cautions and instructions, contact a
healthcare professional, dealer or technical personnel if applicable, before
attempting to install this equipment - otherwise, injury or damage may occur.
INSTALLATION WARNING
After ANY adjustments, repair or service and BEFORE use, make sure that all
attaching hardware is tightened securely.
This kit contains the following items:
Description
Quantity
Thumb Saver Wheel Lock (RT)1
Thumb Saver Wheel Lock (LT)1
Wheel Lock Clamp
2
REPLACING/ADJUSTING THE WHEEL LOCKS (FIGURE 1)
NOTE: Before adjusting or replacing the wheel locks, ensure that the tires are inflated to the recom-
mended psi on the sidewall of the tire.
REPLACING THE WHEEL LOCK
1. Loosen the hex screws and remove the existing wheel lock and clamp from the wheelchair.
2. Install the new wheel lock clamp onto the wheelchair frame. Tighten the hex screws securely.
ADJUSTING THE WHEEL LOCK
1. Engage the wheel locks.
NOTE: Any wheel lock adjustment should embed the wheel lock shoe at least 3/16-inch into the pneu-
matic tire (1/8-inch for urethane wheels) when engaged.
2. If necessary, loosen the hex screw(s) that secure the wheel locks to the wheelchair frame
and adjust the position of the wheel lock until the 3/16-inch (1/8-inch for urethane wheels)
measurement is obtained for correct wheel lock adjustment.
3. Securely tighten the hex screw(s).
4. Engage the wheel locks and push against the wheelchair and determine if the wheel locks
engage the wheel enough to hold the wheelchair.
5. Repeat the above procedures until the wheel locks hold the wheelchair.
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