Specifications

11921 Slauson Ave. Santa Fe Springs, CA. 90670 [phone] FAX [phone]
75
PATENTS PENDING
STOW SW:
The “Stow” switch is normally closed when the Lift is not stowed. This reading indicates the
Stow switch is broken or the wiring is disconnected or damaged.
FOLD SW:
The switch state (open or closed) does not match the position of the platform. This reading
indicates the “Fold” switch is broken or the wiring is disconnected or damaged.
FOLD. (Fold dot):
The platform did not pass the “Fold” switch, so the platform is still positioned where the
Controller (FIG. 72-1) looks for a pressure reading that indicates an occupant on the plat-
form (50+ lbs). The Controller needs the platform to travel a certain distance to measure
the hydraulic system pressure (PSI) so Controller can determine if it is okay to fold platform.
If the Lift stopped folding in the middle of the platform occupant sensing area, the Control-
ler will not allow the platform to continue folding. To continue operation, platform must be
unfolded completely.
Corrective action:
Completely unfold the platform to fl oor level. Then the Controller will allow the platform to
be folded and stowed.
UNFOLD. (Unfold dot):
The platform did not pass the “Fold” switch, so the platform is still positioned where the
Controller (FIG. 72-1) looks for a pressure reading that indicates an occupant on the plat-
form (50+ lbs). The Controller will not allow the platform to be folded, so it can only be
unfolded at this point. To continue operating the Lift, platform must be unfolded completely.
Corrective action:
Completely unfold the platform to fl oor level. Then the Controller will allow the platform to
be folded and stowed.
UNFOLD. OCCUPIED (Unfold dot Occupied):
Platform was occupied (50+ lbs. on platform) when trying to fold the platform.
Corrective action:
1. Remove occupant (or load) from platform.
2. If there is no occupant or load, go to diagnostic mode on the Controller (see DIAG-
NOSTICS) and read the hydraulic system pressure. Pressure should read between
170PSI to 230PSI. If it is not in the range, change the Pressure Transducer.
3. If it is within range, the platform occupied pressure setting must be changed in the
Controller.