Faults and Troubleshooting
Back-in-Box-Lift K70 / K90 / K90 ACTIVE Page 63 of 100
A guide rail is fitted to each side of the inside the cassette
(see Figure 41 and Figure 42).
Rollers and guide rails ensure that the platform is guided
precisely when being retracted into the cassette.
When the platform is lowered to the retract position, the
rollers must align precisely with the guide rails. If the posi-
tion of the platform is too high, the rollers hit the top of the
leading edge of the guide rail when the platform is retract-
ed. If the position of the platform is too low, the rollers hit
the bottom of the leading edge of the guide rail when the
platform is retracted. In both cases, the platform will jerk
when being retracted and the switching point for the re-
tract position must be adjusted (see Section 9.1.1).
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