Stryker 2100, Maintenance Manual

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Service Information
10
BED MOTOR REPLACEMENT
BED MOTOR KIT #88–0316–08–00
Required Tools:
7/16” Hex Socket & Ratchet 1/4” Allen Wrench
Phillips Screwdriver 3/8” Nut Driver
Loctite 242 & 271
Replacement Procedure:
1. Lower head panel.
CAUTION
Disconnect power plug from wall receptacle.
The 2100 bed is equipped with gas springs to assist the lift mechanism. To prevent the seat section from
expanding away from the chassis when the bed motor is removed, use the hand crank to raise the bed to
full up before placing the bed in servicing position. If the motor is jammed or cannot be hand cranked, tie the
seat section to the chassis with straps or strong rope.
2. Remove headboard, foot mattress, foot extension, foot pans, I.V. pole and leg supports.
3. Set brake with casters turned as though the bed is being pushed backwards. The casters at the head end
of the bed must be five feet away from the wall.
4. With the assistance of another person, lift the foot end of the bed chassis and rotate the locked rear casters
until the upper frame–headboard mounts touch the floor.
5. Disconnect the bed motor plug and unscrew the cord strain relief clamp.
6. Remove the four hex screws from the motor trunnion mounts.
7. Remove the two Allen screws and sleeves from the drive tube/crank.
8. Motor, drive tube, and mounting hardware can now be removed as a unit.
9. Remove the two white trunnion bearings from the defective motor and place them onto the new motor trun-
nion mounts. Place the motor assembly back into the litter frame and attach with the four hex screws.
Use Loctite 242 to secure the screws.
NOTE
The bed motor is supplied with the drive tube retracted (ref. 1/8” from motor case). Do not allow drive tube
to rotate.
10. Using Loctite 271, install the two 1/4” Allen screws and sleeves.
11. Plug the motor lead into the control box and replace the strain relief clamp.
12. Be sure all screws, cables, and electrical connections are secure.
13. With the assistance of another person, tilt the bed back down to the floor.
14. Plug the power cord into the wall receptacle. Operate the bed motor from full up position to full down to
full up again. Be sure the motor stops electrically before the drive tube bottoms out on the mechanical
stops. Check motor cable for proper routing and attachment to prevent interference.
15. Check electrical safety in conformance with specified hospital requirements (leakage current, ground conti-
nuity, etc.)
16. Remount all items removed in step two and return bed to service.