20
Operation and Service KBL 4000/4500
3.7. Canopy drive
In order to ensure a trouble-free operation of the drive, check
and service it each time the tubes are replaced (see table be-
low).If the canopy does not remain safely in the upper position
any more, the spring must be re-tensioned.
While tensioning or relaxing the spring, # x it against torsion.
Regular mainte-
nance
Tension the spring
Figure 3-15 Spring compressor The
spring has to be secured against torsion
while tensioning and relaxing.
Figure 3-16 Return pulley
Figure 3-17 Upper rope covering
Step
Procedure
Reference
1
Check the spring rope for wear. Should individual wires of
the rope be spliced, replace the rope.
2
Lubricate the rope in the return-pulley area by using HHS
2000 spray lubricant.
Fig. 3-16
3
Tension the spring in such a way that the canopy remains
stable in any position. The spring-compressor is kept below
the bed, at the front left-hand side
Fig. 3-15
4
The rope has to be replaced after 3,000 hours of use:·
- Completely relax the spring.
- Remove the upper covering of the attachment fi tting of
the rope.
- Undo the bolt and remove the used rope, paying attention
to the position of the bolt.
- Hinge the lubricated new rope, fi x the bolt and tension the
spring.
Fig. 3-17
Fig. 3-18
spray lubricant
HHS 2000
5
Test the canopy drive: If it is working properly, you can
easily open and close the canopy, and it remains stable
when in its upper position.
