AEM SM100 - Control Interlock System

Operation
Control Interlock System 6.6
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[en-US] | 08/2022 | 5100064108 | SM100 | Operator’s Manual
6.6 Control Interlock System
The intent of the machine’s control interlock system is to ensure the operator
is standing on the operator platform and ready to operate the machine be-
fore the controls are activated.
If any of these interlocks do not function properly, contact your Wacker Neu-
son dealer for service. Do not modify the system.
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Fig.7: Functions controlled by inter-
locks
Parking brake switch
The parking brake (indicated by an icon on the display and an illumi-
nated LED on the parking brake switch(1)) defaults to ON when the engine
is not running. When the engine starts, press the parking brake switch to re-
lease the parking brake.
The parking brake activates when any of the following occur:
• The operator steps off the operator presence pedal.
• The ignition key is turned to Position 0.
• The engine stops.
• The parking brake switch is pressed.
The ground drive, lift arm control, and auxiliary hydraulic functions are not
activated until the operator is standing on the platform with the operator
presence pedal engaged and the parking brake released.
On the initial start-up of the machine, the operator presence pedal and park-
ing brake switch disengage interlocks. After initial start-up, the operator pres-
ence pedal locks all interlocks.
Drive controls
After the initial release of the parking brake switch, to engage the drive con-
trol interlock, press the parking brake switch again. The parking brake switch
then locks out only the drive system. To disengage the interlock and operate
the drive joystick(2), operator must be present while pressing the parking
brake switch.
Lift arm controls
During normal machine operation (when the engine is running), the lift arm
interlock is dependent on the operator presence pedal. To disengage the in-
terlock, engage the operator presence pedal before operating the loader joy-
stick(3).
If the engine is off, you can lower the lift arm by turning the ignition key to the
ON position and holding the park brake switch. For further information, see
Lift Arm Manual Override on page 64.
Auxiliary controls
The intent of the auxiliary controls interlock is to prevent unintentional hy-
draulic flow to attachments. If the operator does not have the operator pres-
ence pedal engaged, and the operator shifts the auxiliary control lever out of
neutral, the engine will shut down. To disengage the interlock, engage the
operator presence pedal before operating the auxiliary control lever(4). For
further information on continuous flow operation, see Auxiliary Override on
page 52.
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