Reduce the engine speed when you maneuver the machine in tight quarters or when you break over a rise.
Select the transmission speed range that is necessary before you start the downgrade. Do not change speed ranges when you are going downhill.
When you drive down a grade, use the same transmission speed range that is used for driving up a grade.
Machine Security System (If Equipped)
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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. |
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 of 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 MSS indicator will be displayed on the instrument module on the dashboard. If the indicator is on, the key is not authorized.
Note: MSS will not shut down the machine after the machine has started.
The MSS allows 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 OFF position and the MSS is active, you have a 30 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 settings because the use of an electronic key is no guarantee that the machine can be restarted.
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.
- Adjust the operator seat.
- Fasten the seat belt.
- Start the engine.
- Allow the engine to warm up for 3 to 5 minutes.
- Before you move the machine, ensure that no one will be endangered.
- Operate the machine in an open area. Check for proper operation of all controls and protective devices.
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Illustration 1 g02442916 - Push down on service brake pedal (2) in order to prevent the machine from moving.
- Raise all attachments enough to clear any unexpected obstacles.
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Illustration 2 g02442880 Steering and transmission control lever Show/hide table
Illustration 3 g01234435 - Release the parking brake by pressing the lower half (B) of parking brake switch (3). This action unlocks the parking brake, the transmission control, and the steering lever.
Note: When the parking brake is set, the transmission defaults to neutral. When the parking brake is released, the transmission will stay in neutral. In order to select a transmission speed range, return the direction selector (4) to neutral.
- Then, move direction selector (4) to the desired direction. Use speed range selector (5) to select the desired speed range.
- Release service brake pedal (2) in order to allow the machine to move.
- Check the service brakes.
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Illustration 4 g01195887 The throttle control switch is located toward the front of the left-hand console. - To select high idle, press the throttle control switch on the top of the switch and release.
Note: The machine is capable of driving through the service brakes in the first speed range when the engine is set at high idle.
- To select low idle, press the throttle control switch on the bottom of the switch and release.
- Select an intermediate engine speed in the following manner:
- Select the desired engine speed with decelerator (1).
- Push in on the switch of the throttle control and hold for 3 seconds in order to lock in the engine speed.
- Change an intermediate engine speed in the following manner:
- To return to high idle from an intermediate engine speed, push in and release the switch of the throttle control.
- To return to low idle from an intermediate engine speed, push in and release the switch of the throttle control.
- Use the steering and transmission control in order to turn the machine.
- Drive the machine forward for best visibility and for control.
Speed changes and directional changes at full engine speed are possible. However, deceleration is recommended when you change direction. This deceleration will maximize operator comfort.
- In order to decrease engine speed, push down on the decelerator pedal (1).
- When the machine slows, shift the transmission to the desired direction with direction selector (4).
- Increase the engine speed by releasing the decelerator pedal (1).
- Select the desired transmission speed range with speed range selector (5).
In order to allow movement of the direction selector, push down on the bottom half (B) of the switch for the parking brake.
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| Illustration 5 | g02442939 |
When the machine is moving forward, push the direction selector forward for a left turn. When the machine is moving backward, push the direction selector forward for a right turn. When you move the direction selector farther in a forward motion, the machine will turn faster.
| STEERING ACTION | DIRECTION | LEVER | TURN |
| "NORMAL/STEEP" | FORWARD | PUSH (1) | LEFT |
| "NORMAL /STEEP" | FORWARD | PULL (2) | RIGHT |
| "NORMAL /STEEP" | REVERSE | PULL (2) | LEFT |
| "NORMAL /STEEP" | REVERSE | PUSH (1) | RIGHT |
When the machine is moving forward, pull the direction selector backward toward the operator for a right turn. When the machine is moving backward, pull the direction selector backward toward the operator for a left turn. When you move the direction selector farther toward the operator, the machine will turn faster.
Use the same parking brake and steering instructions as Normal Steering.