Rotary M50 User Manual

10 CHAPTER 10 - TROUBLESHOOTING
A list of possible troubles and signaling failures, and solutions is given below.
Trouble:
Possible Cause:
Solution:
The lift does not work
The main switch is not turned on
Turn the switch on
There is no power
Check power and restore if necessary
The electrical wires are disconnected
Replace
Fuses are blown
Replace
The emergency button is pressed
Restore the button properly
The lift does not raise when the
UP button is pressed (the pilot
lam is ON)
The motor direction of rotation is not correct.
Interchange the two phases on the main switch
The oil in the hydraulic unit is not sufficient.
Add some hydraulic oil.
The UP button is faulty.
Check UP button and connection for proper
operation.
Replace, if needed
The maximum height limit switch sensor is
faulty.
Check the max. height and relevant connection
for proper operation.
Replace, if needed.
The lowering valve does not close.
Check and clean, if dirty, or replace, if faulty
The suction pump filter is dirty.
Check and clean if needed.
The emergency button is pressed in
Restore the push button properly
The safety height limit switch is not correctly
adjust or it is defective as consequence the
photocell does not read
Adjust or change the limit switch
The photocell sees an obstacle as a consequence
does not read
Remove the obstacle
The reflector is defective as consequence the
photocell does not read
Replace the reflector
The platforms aren’t leveled and as consequence
photocell does not read
Check hydraulic circuit and leveling devices
The photocell isn’t correctly positioned as
consequence does not read
Restore the correctly position
The lift does not lower when the
DOWN button is pressed (the
pilot lamp is ON)
The motor does not operate properly and does
not release the mechanical safeties
Check the motor
The lift raises to disengage the mechanical
safeties and does not lower :
Because air solenoid valve does not work
properly
Replace air solenoid valve
Because the air does not reach the circuit
Check compressor and air pipe
Because electric board is faulty
Replace electric board
The lowering solenoid valve does not discharge
Verify if it is powered and check the magneto
for damages (replace if disconnected or burnt)
The release solenoid valve is not operating
Verify if it is powered and check the magneto
for damages (replace if disconnected or burnt)
The DOWN button is faulty
Check the DOWN button and connection for
proper operation.
Replace, if needed
The safety height limit switch is not correctly
adjusted or it is defective as consequence
photocell does not read
Adjust or change the limit switch
The photocell sees an obstacle as a consequence
does not read
Remove the obstacle
The reflector is defective as consequence the
photocell does not read
Replace the reflector
The platforms aren’t leveled and as consequence
photocell does not read
Check hydraulic circuit and leveling devices
The photocell isn’t correctly positioned as
consequence does not read
Restore the correctly position
The lift does not stop at the
The safety height limit switch is not adjusted
Adjust or change the limit switch

Rotary M50 Specifications

General

Brand	Rotary
Model	M50
Category	Scissor Lifts
Language	English