
SEBU7494-06 63
Operation Section
Machine Operation
Fourth Functio
n Control (If Equipped) – The
fourth function control provides electrical power in
order to control a three-position diverter valve that is
located on som
e work tools. Press the right side of
the switch (C1) in order to send power to the pin (A).
Press the left side of the switch (C2) in order to send
power to pin (
B).
Rear Auxiliary Hydraulic Control (If Equipped) –
In order to ac
tivate the rear auxiliary hydraulics,
activate the continuous flow function for the front
auxiliary hydraulics. Press the left side of the switch
in order to d
irect flow to the lower rear hydraulic line.
Press the right side of the switch in order to direct
flow to the upper rear hydraulic line.
Temperature Control (29)
Temperature Control (If Equipped)
Suspension
Seat (30)
Suspension Seat (If Equipped)
Fan Speed Control (31)
Fan Speed Co
ntrol
Air Conditio ner Control (32)
Air Conditioner Control (If Equipped)
Machine Sec
urity System (If
Equipped)
NOTICE
This machine is equipped with a Caterpillar Machine
Security System (MSS) and may not start under cer-
tain condit
ions. 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
Caterpill
ar Machine Security System (MSS)
can be identified by a decal in the operator station.
MSS is designed to prevent theft of the machine or
unauthori
zed 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 is stored in the electronic key. The ECM will
then compare this ID to the list of authorized keys.
The following table tells the operator the status for
starting the machine. The status light is located near
the key start switch.
Table 12
Green light
The machine will start.
Red light The key is not authorized.
Note: MSS will not shut down the machine after the
machine has started.
Security Management
The MSS has the capability to allow you to program
the system to automatically activate at different time
periods with different keys. The MSS can also be
programmed to reject a specific electronic key after a
selected date and time. When you turn the key to the
OFFpositionandtheMSSisactive,youhavea30
second interval in order to restart the machine with
an unauthorized key. Also if the machine stalls, there
is a 30 second interval for restarting the machine.
This 30 second interval is counted from the time of
turning the key to the OFF position.
Note: Know your machine’s settings because the use
of an electronic key is no guarantee that the machine
canberestarted.
An expiration date can be set for each electronic key
that is contained in the list of keys for the machine.
The key will no longer start the machine when the
internal clock in the security system passes the
expiration date. Each entry in the list of keys can
have a different expiration date.
Spare keys are available from your dealer. Before a
key can operate the machine, the MSS must be set
to accept that particular key. Contact your Caterpillar
dealer for information on additional features of the
MSS.