Page | 33
Commercial in confidence. User Manual Revision CTK-SM-REV8-060720
6. SERVICING INSTRUCTIONS
- Continued
6.19 Control Box - Replacement
(Refer Figure 4.)
Removal
a) Raise the mattress platform to maximum height and remove seat cover (figure 7
item 41). Unplug bed from mains power supply socket.
Disconnect mains power cable
from control box
– refer mains power cable
replacement procedure
– subsection 17.
b) Release the control box (1) from the bed frame mounting bracket (2) by reaching
from under the mattress platform and pressing on the lock tab (A) at one end of the
control box as shown on figure 16. Simultaneously slide the control box out of the
mount bracket.
c) Open control box lid by inserting a small screwdriver into the two slots (B) and
pressing the lock tabs as shown on figures 16 & 17.
CAUTION
Make note of each cable and its corresponding control box port.
d) Disconnect the four actuator cables (6) from the control box.
e) Disconnect the battery backup cable (12) from the control box
– battery backup
replacement procedure refer subsection 16.
f) Disconnect Junction Box Cable (18) from the control box
Installation
a) Reconnect the battery backup (12) cable to the control box.
b) Reconnect the four actuator cables (6) to the corresponding control box ports as
previously noted prior to disconnecting. Refer to actuator cable (common)
replacement procedure
– subsection 26.
c) Align the control box with the mounting bracket, and slide control box over mounting
bracket until lock tab (A) click sound can be heard, and control box is secured in
position.
d)
Reconnect the mains power cable
–
refer mains power cable replacement procedure
–
subsection 17.
e)
Using the electrical safety test equipment (see Tool & Equipment section) verify that
the earth bonding resistance value is within the limits shown in “Technical Data”
section of this manual.
