JLG 20VP (3120849) Service Manual - Manual (Page 36)

SECTION 2 - SERVICE PROCEDURES
2-18 – JLG Lift – 3120849
3. Remove the reset button part of the emergency stop
switch by unscrewing the collar on the inside end of
the reset button assembly.
Speed Control Switch Removal
1. Remove the speed control knob by pulling up on the
knob until it is free of the switch shaft.
2. Loosen and remove the retaining nut and lock
washer from the switch collar and pull the switch out
of the housing.
3. Position the circuit board and locate the speed con-
trol switch wires connected at location J5. (See Fig-
ure 2-15.) Unsolder the three (3) wires to the switch
to remove the switch from the platform box.
Touch Pad Switch Removal
1. Unplug the touch pad ribbon cable connector from
the circuit board connector socket. (See Figure 2-
15.)
2. Using a thin tool, start by lifting an edge of the touch
pad switch and slowly peel away it from the face of
the upper housing until completely free.
Platform Control Box Assembly
To assemble the components back into the control box
follow the previously outlined disassembly procedure and
reverse the steps for the component being installed. The
following are additional guidelines for assembling each
component.
NOTE: Be careful when soldering component wires to the
circuit board DO NOT OVERHEAT BOARD.
Joystick Installation
1. Use the following illustrations to reattach the wires
from the joystick to the circuit board.
YELLOW
BLUE
BLACK
RED
WHITE
CIRCUIT BOARD
COMPONENT SIDE
J3
WIRES FROM JOYSTICK
CONTROL