Autoquip FREIGHTLIFT FLHC - Manual (Page 94)

94
DANGER !
To avoid personal injury, NEVER go under the lift platform until it is securely
blocked (See "Blocking Instructions" section) and the load is removed.
Troubleshooting and maintenance on the lift should only be performed by
qualified service technicians!!
Never walk out onto a jammed carriage until it has been properly blocked or
secured from further movement (See “Blocking Instructions” section)
Maintenance personnel should always speak to the operator(s) of the lift prior to
troubleshooting – to gain insight into the potential cause(s) of the problem.
PROBLEM POSSIBLE CAUSE AND SOLUTION
Freightlift will not raise
(motor not running or
“humming”).
WARNING! a safety
device may have been
activated – if you are
not familiar with how
safety devices interact
with the operation of
the lift, you must find
someone who does.
Or, call Autoquip
Customer Service at
888-811-9876.
 The emergency stop button may be depressed or
jammed. Check all pushbutton stations. Repair / replace.
 The main disconnect switch / distribution panel circuit
breaker is tripped or a fuse is blown. Check and reset or
replace as necessary.
 A door with status switch is open, or switch or interlock is
malfunctioning or is out of tolerance. Close door, or
check and repair or adjust as required per gate manual
(shipped separately – when gates supplied by Autoquip)
 The push button / circuit is malfunctioning. Check
components and circuit. Repair or replace.
 The motor starter overloads (MSO) have tripped. Check
and reset. If it trips again, check for cause in the motor
circuit.
 The control transformer fuse is blown. Check and
replace.
 The “UP” push button or circuit is malfunctioning. Check
at the other push button station for “UP” function. Check
components and circuit. Repair or replace.
 The motor starter coil (MI) has burned out. Check and
replace. (Will usually blow the control transformer fuse.)
TROUBLESHOOTING ANALYSIS