REV C
Section 4 • Repair Procedures
June 2005
4 - 4
TMZ-34/19
Part No. 52075
4 Disconnect the large blue connector from the
circuit board at the connection marked
"KEYPAD" by sliding the connector parallel to
the circuit board.
Component damage hazard. The
circuit board will become damaged
if the wire harness and connector
are disconnected without proper
care. Do not pull upwards on the
connector.
Component damage hazard. The
circuit board may become
damaged if the weight from the
control box lid pulls on the wire
harness. Do not put any weight or
strain on the wires.
Component damage hazard.
Electrostatic discharge (ESD) can
damage printed circuit board
components. Maintain firm contact
with metal that is grounded at all
times when handling printed circuit
boards OR use a grounded wrist
strap.
5 Install the lid onto the control box. Finger-tighten
the retaining fasteners.
6 Starting at the upper corners of the touch pad,
remove all layers of the key pad from the
control box lid.
The wire harness and large blue
connector will interfere if removing
the touch pad from the bottom.
7 Pull the large blue connector through the slot in
the control box lid and discard the old touch
pad. Remove any remaining sealant from the
slot.
8 Using a mild solvent, clean the surface of the
control box lid. Allow the surface to dry.
Component damage hazard. The
circuit board will become damaged
if it comes in contact with solvent.
Do not allow solvent to contact the
circuit board.
9 Remove all the brown backing material from the
new touch pad.
10 Insert the large blue connector from the new
touch pad through the slot. Carefully align the
low battery LED on the control box lid with the
window in the new touch pad and lightly lay the
touch pad onto the control box lid.
Repositioning the touch pad is
possible if the touch pad is lightly
adhered to the lid. Do not apply
any pressure to the touch pad.
11 When satisfied with the position of the touch
pad, firmly press down the entire surface of the
touch pad with your fingers.
12 Loosen the platform control box lid retaining
fasteners and open the lid.
13 Using RTV-type sealant, completely seal the
opening in the slot of the control box lid around
the wire harness.
14 Apply dielectric grease to the pins on the circuit
board at the connection marked "KEYPAD."
15 Install the large blue connector onto the circuit
board pins at the connection marked
"KEYPAD," by sliding the connector parallel to
the circuit board, until the connector is pushed
onto the circuit board pins no less than
0.2 inch / 5 mm.
Be sure all pins are in the
connector.
16 Install the lid onto the control box and tighten
the retaining fasteners. Do not overtighten.
17 Install the platform controls onto the machine.
18 Connect the platform control wire harness to the
harness connector at the platform pivot.
PLATFORM CONTROLS
800-610-4101
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