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Chapter Four – Maintenance Procedures – Base
91
4.6 LIFT UNIT (CONTINUED)
POWER AND SENSOR COIL CORD REPLACEMENT
(POWER COIL CORD KIT P/N 3000–200–743, SENSOR COIL CORD KIT P/N 3000–200–741)
Required Tools:
Standard Screwdriver
Side Cutters
Bungee Cord (or equivalent)
5/16” Nut Driver
Phillips Screwdriver
5/16” Socket Wrench
Procedure: (This procedure will take approximately 45 minutes)
1. Unplug the bed power cord from the wall socket. Remove lower lift cover (see page 67).
2. Remove upper lift cover (see page 67).
3. Remove litter access panels at the end of the bed needing service (see page 93 & 94).
4. Using side cutters, cut the cable ties holding the power and sensor coil cords to the base. Remove the
ground wire coming from the sensor cord that is attached to the base (note the star washer arrangement).
5. Disconnect the cables going to the motor and the lift potentiometer (at the head end, the sensor cord is
also attached to the brake switch sensor).
6. Pull both cords up through the frame of the bed and the lift housing.
7. Using a 5/16” nut driver, remove the two screws (A) holding the cable clamps* to the top of the lift housing.
8. Using a 5/16” nut driver, remove the two screws (B) securing the cable clamps* to the underside of the
header crossbar assembly.
9. Pull both coil cords up through the header crossbar assembly.
10. Remove the two grommets protecting the cords on top of the header crossbar assembly.
11. Using side cutters, cut the cable ties holding both cords to the 1” cross frame.
12. Remove the grommet both cords are routed through at the 1” cross frame.
13. Using a 5/16” nut driver, remove the screw supporting the corner metal plate that holds the motion interrupt
switch at each corner. (This provides access to the coil cord connectors.)
14. Disconnect the power and sensor coil cords from the connectors.
15. The cords should now be completely removed from the bed. Reverse the above steps to install the new
power and sensor cords*.
CAUTION
*When the power and sensor coil cords are being replaced, secure the cable clamps to the cords at the first
coil on the top and on the bottom to assure there is not too much slack in the cords between the top of the
lift housing assembly and the bottom of the header crossbar. Be sure the clamps are fastened at exactly the
correct angle, as shown by the arrows in the illustration. Arrange the cords exactly as shown in the illustration
(left in front of right). If this is not done correctly, damage to the cords will result.
Summary of Contents for Secure 3000
Page 78: ...Notes 78 ...
Page 106: ...Notes 106 ...
Page 184: ...Notes 167 2 ...
Page 241: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 222 This page intentionally left blank ...
Page 243: ...Appendix B Circuit Board Locations Bed Wiring Diagrams 224 This page intentionally left blank ...
Page 249: ...DH 3 94 3000 000 020 REV B 420 Alcott Street Kalamazoo MI 49001 ...