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Commercial in confidence. User Manual Revision CTK-SM-REV8-060720
6. SERVICING INSTRUCTIONS
- Continued
6.38 Stabiliser Arm - Replacement
(Refer figure 6)
If both stabiliser arms need to be replaced, be sure to only replace one arm at a
time, in order to maintain the positioning of the mattress platform.
Removal
a) Adjust the mattress platform to a mid-height position.
b) Remove bottom retaining bolt head cover cap (28).
a) Remove retaining hex head bolts (29 & 30) and Nyloc nuts (27). Discard Nyloc nuts.
b) Remove the Stabiliser Arm.
Installation
a) Fit replacement stabiliser arm in position.
b) Secure in position using existing hexagon bolts (29 & 30) and two new Nyloc nuts
(27). The stabiliser must be free to pivot but not too loose.
c) Fit bolt cover cap (28).
6.39 Crank Roller Bearing - Replacement
(Refer figure 6)
The below process describes replacement of the head end radius arm bearings.
Apply a similar process to replace foot-end rollers.
WARNING
Ensure mattress platform sub frame is securely supported, with the hoist or
suitable stands, at all times.
Removal
a) Apply central locking brakes and support mattress platform using the hoist.
b) Detach both stabiliser arms from the undercarriage frame only (refer section 38
Stabiliser Arm Replacement procedure).
c) Push the mattress platform assembly towards the foot end of the bed until the head
end roller bearings (25) are just clear of the channels (figure 5 item 22) on the
undercarriage assembly as shown on figure 21.
d) Lift the mattress platform just enough for the roller bearings to clear the
undercarriage frame (A) and pull the mattress platform back (B) towards the head
end with the roller bearing just clearing the channels
– refer figure 21.
e) Support the mattress platform with stands.
f) Pull the roller bearings (25) and spacer bushes (24) off the crank shaft.
