Service manual

M411433 33
Section 5 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the tumbler before servicing.
• Close gas shut-off valve to gas tumbler before servicing.
• Close steam valve to steam tumbler before servicing.
• Never start the tumbler with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the tumbler is properly grounded.
W002
WARNING
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34. ELECTRONIC CONTROL (MM Models)
a. Unlock and open access panel.
b. Remove retaining screw and swing electronic
control out from control area. Refer to Figure 8.
c. Disconnect battery plug from control plug.
d. Carefully remove the wire harness wires from
the back of the electronic control.
e. Remove the four mounting screws holding the
electronic control to the bracket. Refer to
Figure 3.
NOTE: Refer to the wiring diagram when
reconnecting the wire harness to the electronic
control.
IMPORTANT: Due to the sensitivity of the
electronic control, careful handling is required. As a
precautionary measure, we recommend using a
ground wrist strap when handling the electronic
control. Wrist strap, cord and alligator clip are
designed to carry away any electrostatic charge
from your body and to direct charge to an available
ground. By using this static protection device,
potential electrostatic discharge problems
associated with handling of electronic control will
be minimized. Always handle electronic control by
its metal edges. If a wrist strap is not available,
touch tumbler while it is plugged in before handling
control to dissipate any charge.
35. REVERSING/NONREVERSING SWITCH
Refer to Figure 8.
a. Unlock and open access panel.
b. Remove retaining screw and swing electronic
control out from control area.
c. Disconnect the wires from the back of the
switch.
d. Remove nut holding switch to electronic
control bracket. For OM Models, depress
locking tabs on rectangular switch.
36. BATTERY (MM Model)
(Electronic Control Models)
Refer to Figure 8.
a. Unlock and open access panel.
b. Remove retaining screw and swing electronic
control out from control area.
c. Disconnect battery plug from control plug.
d. Unsnap plastic clamp holding battery to control
bracket.