Rotary M50 - Chapter 8 - Operation and Use; Controls Overview

8 CHAPTER 8 - OPERATION AND USE
8.1 CONTROLS
Controls for operating the lift are:
GENERAL SWITCH (12)
Main switch has two positions:
 0 Position: the electric circuit is not powered; the switch can be padlocked to prevent the use
of the lift.
 1 Position: the electric circuit is powered; the lift can be operated.
UP BUTTON (7)
 When pressed, motor and hydraulic circuit solenoid valve operate and the lift will be raised.
DOWN BUTTON (8)
 When pressed, the motor and the release hydraulic circuit solenoid valve are operated, the
lift can be raised and mechanical safeties released. So, the motor is stopped, the lowering
solenoid valve is operated and the lift can be lowered up to the safety height (400 mm from
the ground)
FINAL LOWERING BUTTON (5)
 When pressed under the safety height limit switch, the horn and, after a few seconds, the
hydraulic unit release solenoid valve, the air solenoid valve and the lowering solenoid valve
are operated and the lift can make its final travel.
 When pressed above the safety height limit switch, the horn, the release solenoid valve and
the lowering solenoid valve are operated and mechanical safeties are engaged.
EMERGENCY BUTTON (9)
 If it is pressed, the circuit will disconnect
TWO POSITION SELECTOR (11)
 In left position operates the lift.
 In right position operates the auxiliary lift (Models LT and LTAT).
For lifts equipped with play detector the selector has three positions :
 In left position operates the auxiliary lift (Models LT and LTAT).
 In middle positions operates the lift
 In right position operates the play detector.
1ST WORKING POSTION BUTTON (13)
 When pressed, the motor , the release hydraulic circuit solenoid valve and air solenoid valve
are operated, and the lift can raise.
When the working position has been reached , the lift continue raising for a while, then it
stops and lowering valve is activated.
When working position is reached the lift stops and after few seconds unlocking solenoid
valve and lowering valve are activated to engage the mechanical safeties.
2ND WORKING POSITION BUTTON (14)
 The operation is the same as 1st working position button.
BE SURE THE SAFETY AREA IS FREE FROM PEOPLE AND OBJECTS
Lift operation can be summarized into four steps: