JLG 110HX ANSI Service Manual - Manual (Page 98)

SECTION 2 - PROCEDURES
2-74 – JLG Lift – 3120636
2.27 FREE WHEELING OPTION
To Disengage Drive Motors and Brakes (Free
Wheel) for Towing, etc.
1. Chock wheels securely if not on flat level surface.
2. Disconnect both drive hubs by inverting disconnect
caps in center of hubs.
3. If equipped, move steer/tow selector valve to float
(tow) position by pulling valve knob out.
To Engage Drive Motors and Brakes (Normal
Operation)
1. If equipped, move steer/tow selector valve to steer
position by pushing valve knob in.
2. Connect both drive hubs by inverting disconnect
cap in center of hub.
3. Remove chocks from wheels as required.
2.28 OEM CONTROLLERS
LED’s on the circuit board show if the controller works.
The A Terminal LED lights when the handle is moved in
the A direction, B Terminal LED in the B direction.
ADJUSTMENTS MUST BE MADE IN THE ORDER LISTED.
Before making adjustments, position CREEP switch to
OFF, IGNITION switch to ON and depress footswitch.
THRESHOLD Adjustment
1. Move controller handle approximately one (1) inch
(2.5 cm), until LED light comes on.
2. Adjust THRESHOLD trimpot CW to increase function
speed, CCW to decrease speed.
3. Adjust trimpot so that function just starts to move
after LED light comes on.
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HI RANGE Adjustment
1. Move handle all the way forward.
2. Back off controller approximately 10°.
3. If function slows down, controller is at or below max-
imum output. If this is satisfactory, do not adjust fur-
ther.
4. If function speed is too slow, turn HI RANGE trimpot
CW to increase speed. If function speed is too fast,
turn trimpot CCW to decrease speed.
5. If necessary, repeat steps (1) through 4.
IRS - RAMP RATE Adjustment
1. Turning RAMP RATE trimpot CW increases the time
to turn ON or OFF; CCW decreases the time it takes
to turn ON or OFF when handle is moved.
2. Trimpot has a wide adjustment range, therefore it
will be necessary to make 2 or 3 turns to notice a dif-
ference in function response.d.
LO RANGE Adjustment (CREEP)
1. Turn CREEP switch on and completely stroke han-
dle.
2. Adjust LO RANGE trimpot for desired output or func-
tion speed. CW increases speed/output, CCW
decreases speed/output.