Service Manual
R&M Materials Handling, Inc. 
4501 Gateway Boulevard 
Springfield, Ohio 45502 
P.: (937) 328-5100 
FAX: (937) 325
-
5319
43/53 
R&M Materials Handling, Inc. reserves the right to alter or amend the above information without notice.
7  OPERATING INSTRUCTIONS 
7.1  Normal function 
7.1.1  Control methods 
EP (Electronic Potentiometer) stepless pushbutton control 
Released (stop): 
The device doesn’t move or, if it is already moving, it will decelerate to a complete stop. 
Fully pressed (accelerate): 
The  device  accelerates continuously  until  the  pushbutton  is  released  or  the  maximum  speed  is 
reached. 
Half-pressed (slow/hold): 
If half-pressed the device will accelerate until it reaches the preset slow speed. 
If half-pressed when the device is moving above the preset  slow speed, the current speed will be 
held without accelerating or decelerating. 
1 Pushbutton released: the motor does not turn 
2 Pushbutton half-pressed: the motor accelerates until it reaches the preset slow speed 
3 Pushbutton fully pressed: the motor accelerates towards maximum speed 
4 Pushbutton half-pressed: the current speed is held 
5 Pushbutton fully pressed: the motor accelerates until it reaches maximum speed 
6 Pushbutton half-pressed: the current (maximum) speed is held 
7 Pushbutton released: the motor decelerates 
8 Pushbutton half-pressed: the current speed is held 
9 Pushbutton released: the motor decelerates to a complete stop. 










