HIGHLANDER II VERTICAL PLATFORM LIFTS:
Install Manual
17FEB2021 | 630-00113 REV C
34
TROUBLESHOOTING
HIGHLANDER II: SECTION 6
SERVICE MOMENTARY SWITCH
The SERVICE switch should only be used during
installation and for service by authorized
technicians.
Pressing the SERVICE switch puts the lift into a
“Service Mode” which temporarily ignores most
safety circuits and major faults allowing the
technician to move the platform and troubleshoot
issues more easily. All four (4) Indicator LEDs will
flash green when the unit is in “Service Mode”
and the lift will automatically go back to normal
operation after 10-minutes. You can hit the RESET
switch to exit “Service Mode” before 10-minutes. All
status LEDs on the control board will work normally
in “Service Mode.”
Pressing the SERVICE will allow the platform to move
if the unit is in “Out of Service Mode”, however the
lift will return to “Out of Service Mode” when the
“Service Mode” expires.
To reset the “Out of Service Mode” flag and
clear memory/errors after required service has
completed:
1. Enter “Service Mode” by pressing and
releasing the SERVICE switch.
2. Press and hold the SERVICE switch for at
least 3 seconds then release.
3. Press and release the RESET switch within
10-minutes.
PERMANENT CUTTABLE JUMPERS
Three permanent cuttable jumpers are included
on the Control Board that allow the software
characteristics to change based on configuration.
If needed these jumpers are cut in the factory and
should never need to change.
3-STOP JUMPER
This jumper is cut in the factory on 3-stop lifts. The
control board will ignore any mid landing circuits
when this jumper is intact.
TG JUMPER (UNUSED)
In the future this jumper will be used on Toe-Guard
lifts.
AUX JUMPER (UNUSED)
This jumper could be used for future expansion/
features.
GEARMOTOR
The VPL uses a 2/3 Hp gearmotor mounted to the top
of the tower frame. The brake on the back of the
gear motor is a “fail safe,” electromagnetic holding
brake. The Motor Gearbox on the front of the motor
is a vented 26:1 worm drive gear reduction with
synthetic gear and bearing oil.
See Figure 6-6 on page 35.
Motor is designed for a duty cycle of 25% with a
maximum continuous operation of 45-minutes. In
other words, 45-minutes of continuous operation
must be followed by 2-hours and 15-minutes of
rest to prevent possible motor damage. Motor
temperature is monitored by a thermocouple inside
the motor housing. If the motor gets too hot it
could restrict travel of platform to DOWN only. If
the motor gets so hot that it could cause damage
to the motor it will restrict platform movement
entirely. Platform movement will be restored
after temperatures fall below hot temperature
thresholds. See STATUS CODES section for the codes
displayed.
Pressing this switch results in the disabling of
safety circuits.
WARNING
!
Do not reset the "Out of Service Mode" flag until
required service has been performed. Unsafe
operation could result.
WARNING
!
