LAUNCH                                                                                                                    Electronic Two-post User’
14 
5.
..
.Solutions to FAQ   
 
Symptom  Reason  Solution 
Motor not operation 
  Check the circuit breaker or fuse 
  Check the voltage to the motor   
  Limit switch is failed 
♦  Motor wire is burnt 
  Replace  the  burnt  fuse  or  reset  the 
circuit breaker 
  Supply correct voltage for motor 
  Replace the limit switch 
♦  Replace the motor 
Motor is running, but 
the lift can’t be raised.
  Motor rotation reversed 
  Solenoid valve body open. 
  Hydraulic pump sucks the air 
  Suction tube is separate from the 
hydraulic pump 
  Low oil level 
  Change the motor rotating direction by 
changing wire connection. 
  Repair or replace the solenoid valve 
body 
  Fasten all the suction pipe fittings 
  Replace the suction tube 
  Add the oil into the oil tank 
Motor is running, the 
lift can be raised 
without load, but the 
vehicle can’t be raised
  Motor is running under low voltage 
  Impurities inside the solenoid valve 
body 
  Regulation pressure of safety valve is 
incorrect 
  Lift is overloaded 
  Supply correct voltage to the motor 
  Remove impurities from the solenoid 
valve body. 
  Adjust the safety valve 
  Check the weight of the vehicle 
The lift is lowering 
slowly without 
pressing the down 
button 
  Impurities on the solenoid valve body. 
  External oil leakage 
  Clean the solenoid valve body 
  Repair the external leakage 
The lifting speed is 
slow or oil flows out of 
the oil fill cap 
  Air and oil are mixed 
  Air and oil suction are mixed 
  Oil return pipe is loosened 
  Replace the hydraulic oil 
  Fasten all the suction pipe fittings 
  Re-install the oil return pipe 
The lift can’t rise 
horizontally 
  Balance cable is not adjusted properly 
  The lift is installed on the slop floor   
  Adjust  the  balance  cable  to the  proper 
tension 
  Shimming  the  columns  to  level  the 
lift(no  more  than  5mm),  If  exceeding 
5mm,  pour  new  concrete  floor  and 
make  it  leveled.  Refer  to  installation 
description. 
Anchor Bolt is not 
fastened 
  Hole is drilled too big 
  Concrete  floor  thickness  or  fastening 
force is insufficient 
  Pour  the  fast  curing  concrete  into  the 
big  hole  and  reinstall  the anchor  Bolt , 
or  use  new  drill  to  drill  the  hole  for 
re-positioning the lift 
  Cut  open  the  old  concrete  and  make 
new  concrete  slab  for  the  lift.  Refer  to 
installation description. 
 
  
 
 
  
 
 
  
 
(C) Diagtools; www.diagtools.eu; diagtools@diagtools.lv; Pernavas 43A, Riga, Latvia, LV-1009; +37129416069