Stryker 1089 - Brake Swivel Lock Ring Replacement

Return To Table of Contents
18 1089-009-002 REV B www.stryker.com
Service Information
BRAKE SWIVEL LOCK RING REPLACEMENT
Tools Required:
• 1/2” Socket
• 5/16” Socket
• 3/8” Drive Ratchet
• 1/4” R atchet
• Needle Nose Pliers
• Bungee Cords
• Small Bottle Jack
• 3/8” Drive Torque Wrench (ft-lb)
Procedure:
1. Pump the stretcher all the way up.
2. Raise both siderails to the up and latched position.
3. Using bungee cords, support the raised base hood.
4. Put the base brake/steer pedal in the neutral position.
5. Using a 1/2” socket, remove the two flange nuts (one on each side) that secure the timing link to the casters.
6. Using needle nose pliers, remove the rue clip, and then the clevis pin from the brake rod activator.
7. Apply the brakes by moving the brake/steer pedal to the brake position.
8. Remove the brake timing link assembly by equally pulling outward on the timing link assembly. Save the brake
timing link for reinstallation.
9. Using a small bottle jack, raise the stretcher up until the caster falls out of the frame socket. Discard the caster.
10. Using a 5/16” socket, remove the two bolts that secure the brake swivel lock ring to the base frame and remove.
Discard the brake swivel lock ring.
11. Using a 5/16” socket, install the new brake swivel lock ring.
Note: The brake swivel lock ring has two dowels that mate to the base frame when installing.
12. Install the new caster assembly by carefully and slowly lowering the jack down until the caster is secured in the
base frame, and then remove the jack.
Note: Make sure that the arrow located at the top of the caster assembly fork stem points toward the foot end of the
unit. If the arrow does not point toward the foot end, damage could occur to the caster assembly.
13. Reverse steps to reinstall. Torque the two flange nuts that secure the timing link assembly to the casters to 80 ±
20 ft-lb. Torque the two bolts that secure the brake swivel lock ring to the base frame to 50 ± 4 ft-lb.
Note: When installing the new brake timing link assembly be sure to reinstall the bushing which may have fallen off
during the removal of the old brake timing link assembly.
14. Verify proper operation of the unit before returning it to service.