Stryker Medical 2025, Maintenance Manual

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Maintenance Procedures – Litter
24
GATCH (KNEE) MOTOR REPLACEMENT
Required Tools:
#2 Phillips Screwdriver 1/2” Socket Wrench Hammer
1/8” Roll Pin Punch 7/16” Socket Wrench w/Short Extension
Replacement Procedure:
1. Unplug the bed power cord from the wall socket.
2. If possible, manually crank the knee section up until it stops. (Even if the knee section will not crank up,
proceed with step 3.)
3. Reach under the litter and remove the clip and pin from the knee motor drive tube.
4. Lift up the knee section and fold it back and out of the way.
5. Using a #2 Phillips screwdriver, remove the four screws holding the litter access cover to the litter and
remove the cover.
6. Disconnect the knee motor power cable and the capacitor cable from the motor.
7. Using a hammer and a 1/8” roll pin punch, remove the roll pin closest to the manual crank handle.
8. Using a 1/2” socket wrench, remove the lock nut from the motor pivot shaft bolt
9. Using a 7/16” socket wrench, remove the motor pivot shaft bolt.
10. Lift up on the motor and remove it from the bed.
11. Using a hammer and a 1/8” roll pin punch, remove the remaining roll pin from the manual overdrive shaft
and remove the sleeve from the shaft.
12. Using a 7/16” socket wrench with a short extension, remove the four bolts holding the motor mounting
bracket to the motor and remove the bracket.
NOTE
This bracket will be installed on the the new motor.
13. Reverse the above procedure to install the replacement motor.
NOTE
Do not install the pin and clip until the motor limits have been set.
14. To set the limits on the new motor, hold the motor drive tube while electrically running the knee down until
it stops
15. Lower the knee section down until it rests on the top of the litter access panel.
16. Manually turn the drive tube in or out until the hole in the drive tube and the hole in the knee section line
up. Install the pin and clip.