Stryker Medical 2025, Maintenance Manual

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Maintenance Procedures – Base
15
COIL AND WIRE REPLACEMENT (HEAD END)
Required Tools:
#2 Phillips Screwdriver Small Standard Screwdriver Bungee Cords (or Equivalent)
3/8” Nut Driver 7/64” Allen Wrench
Replacement Procedure:
1. Raise the litter up to full height and unplug the bed power cord from the wall socket.
2. Using a #2 Phillips screwdriver, remove the three Phillips screws holding the base hood to the base frame.
3. If the bed is equipped with the 110V outlet option, remove the slotted screw holding the outlet cover. If
the bed does not have the 110V outlet option, remove the two slotted screws holding the cover plate.
4. Use bungee cords or the equivalent to secure the base hood up and out of the way.
5. Using a 3/8” nut driver, remove the nut holding the coil and wire to the solenoid valve and remove the coil
and wire from the valve.
6. Using a 7/64” Allen wrench, remove the two screws holding the cover on the power junction box and re-
move the cover.
7. Unplug and remove the wires from the junction box.
8. Reverse the above procedure to install a new coil and wire assembly and reinstall the base hood.
COIL AND WIRE REPLACEMENT (FOOT END)
Required Tools:
#2 Phillips Screwdriver Small Standard Screwdriver Bungee Cords (or Equivalent)
3/8” Nut Driver 5/32” Allen Wrench Large Vise Grip Pliers
Wire Cutters
Replacement Procedure:
1. Raise the litter up to full height and unplug the bed power cord from the wall socket.
2. Using a #2 Phillips screwdriver, remove the three Phillips screws holding the base hood to the base frame.
3. If the bed is equipped with the 110V outlet option, remove the slotted screw holding the outlet cover. If
the bed does not have the 110V outlet option, remove the two slotted screws holding the cover plate.
4. Use bungee cords or the equivalent to secure the hood up and out of the way.
5. Depress the pump pedal and hold it in the down position. Using large vise grip pliers, clamp the pump
bar from the top so the pliers rest against the pump motor plate.
NOTE
Be sure the pliers are clamped tight before continuing with the next step.
6. Using a 5/32” Allen wrench, loosen the two set screws on the pump pedal pivot bar.
7. Push the pivot bar completely out of the pump pedal assembly and lower the pedal assembly to the floor.
8. Using a 3/8” nut driver, remove the nut holding the coil and wire assembly to the solenoid valve and remove
the coil and wire from the valve.
9. Using wire cutters, cut the wire ties holding the wires to the frame and unplug the wires.
10. Reverse the above procedure to install the new coil and wire assembly
CAUTION
Do not remove the vise grips until the pump pivot bar is securely back in place. Damage to the equipment
or personal injury could occur.