
Accelerator Control (28)
Accelerator Control - Push down on the
accelerator pedal in order to increase engine
speed. Release the accelerator pedal in
order to decrease engine speed. The
accelerator pedal will return to the setting of
the governor control.
Interlock Control (29)
Interlock Control - Move the armrest to the RAISED position in order to lock out the hydraulic controls.
Note: When the armrest is moved to the RAISED position, the parking brake will engage. Move the armrest
to the LOWERED position and push the switch for the parking brake in order to activate the hydraulic
controls.
Note: When you start the engine, the parking brake must be disengaged in order for the hydraulic controls
to be activated. If the armrest is raised and then lowered during operation, you must disengage the parking
brake in order for the hydraulic controls to be activated.
Machine Security System (If Equipped)
NOTICE
This machine is equipped with a Caterpillar Machine
Security System (MSS) and may not start under certain
conditions. Read the following information and know your
machine's settings. Your Caterpillar Dealer can identify
your machine settings.
Machine Security System (MSS) -
Machines that are equipped with a
Caterpillar Machine Security System (MSS)
can be identified by a decal in the operator
station. MSS is designed to prevent theft of
the machine or unauthorized operation.
Basic Operation
MSS may be programmed to read a standard Caterpillar key or an electronic key. The electronic key
contains an electronic chip within the plastic housing for the key. Each key emits a unique signal to the
MSS. The keys can be identified by a gray housing or a yellow housing. MSS can have programmed settings
to require an electronic key or a standard Caterpillar key for starting during certain periods of time.
When the key start switch of the machine is turned to the ON position, the ECM will read the unique ID that