Maintenance Manual
28
HEAD SECTION REPLACEMENT
Required Tools:
1/2" Socket Wrench Two 1/2" Wrenches No. 2 Phillips Screwdriver
3/16" Allen Key 7/16" Wrench Strap
Procedure:
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Unless otherwise indicated, refer to figure 4.3A on page 26 for the illustration of this procedure
reference points.
Under no circumstances should the CPR emergency release (optional) handles be activated
during this procedure or serious injury to people or damage to equipment could occur.
1. Fully raise the bed and apply the brakes.
2. Unplug the bed power cord from the wall outlet.
3. Raise the head siderails.
4. Remove if applicable the head section plastic cover (optional) or run fully up the head
section. Secure the head section to the bed using a strap to prevent the head section from
moving during the procedure.
5. Loosen the lock rings (A, fig. 4.1A, page 18) of both siderail cables and remove the siderail
cables. Using cutting pliers, cut the Ty-raps holding the siderail cables to the frame.
6. Using a 3/16" Allen key and a 1/2" wrench, remove the four locknuts/bolts (B, fig. 4.1A, page
18) holding each head siderail assembly to the head section and remove the siderails.
7. Using a no. 2 Phillips screwdriver, remove the screw holding each cable tie present on both
sides of the head section structure.
8. Using a 1/2" wrench, remove the nuts/shoulder spacers/bolts (H) holding the head section to
the stabilizer arms. Lay the stabilizer arms down.
If the bed is equipped with the CPR mechanism, proceed with step 9 to 16 and end the
procedure.
If not, proceed with step 17 to 21 and end the procedure.
9. Remove the two wires (C, fig, 4.3H, page 46) from the micro switch. Note their position
before removing them.
10. Using two 1/2" wrench, remove the locknut/shoulder spacers/bolt (L, fig. 4.3H, page 46)
holding each CPR handle to the head section. To remove the cable ends from the handle
slots, loosen the two locknuts holding each CPR cable to its handle using a 7/16" wrench.
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Insert the cable ends inside the handle slots before assembling the handle to the new head
section. Then adjust the two locknuts of each cable in order to have a 1/8" play in the CPR
handle movement.
11. Using two 1/2" wrenches, remove the locknut/bolt (M, fig. 4.3H, page 46) holding the
pneumatic cylinder end fitting to the head section lever arms. Lay the CPR mechanism
down on the frame.
12. Remove the strap and lower the head section while holding it firmly.
13. Using a 1/2" wrench, remove the two locknuts/shoulder spacers/bolts (F) holding the head
section to the seat section.
14. Remove from the defective head section the micro-switch by pressing its two side clips
15. Reverse the above steps to install the new head section.
16. Test the head section and CPR mechanism for proper operation before returning the bed to
service.
End of procedure.
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