OPERATING PROCEDURE (CONT’D)

Operating On Slopes (Cont’d)

Figure OI-124

When operating on a slope, level the work area before beginning [Figure OI-124]

If this is not possible, the following procedures should be used:

Do not work on slopes which are over 15 degrees.

Use a slow work cycle.

Avoid working with the tracks across the slope. This will reduce stability and increase the tendency for the machine to slide. Position the excavator with the blade downhill and lowered.

Avoid swinging or extending the bucket more than necessary in a down hill direction. When you must swing the bucket downhill, keep the arm low and skid the bucket downhill.

When working with the bucket on the uphill side, keep the bucket as close to the ground as possible. Dump the spoil far enough away from the trench or hole to prevent the possibility of a cave in.

To brake the machine when going down a slope, move the steering levers (Item 1) [Figure OI-125] to the NEUTRAL position. This will engage the hydrostatic braking.

When the engine stops on a slope, move the steering levers to the neutral position. Lower the boom / bucket to the ground.

NOTE: If the engine stops, the boom / bucket (attachments) can be lowered to the ground using hydraulic pressure which is stored in the accumulator.

The console must be in the locked down position, and the key switch in the ON position.

Use the control lever to lower the boom. Start the engine and resume operation.

OPERATING PROCEDURE (CONT’D)

Operating In Water

Mud and water should be removed from the machine before parking. In freezing temperatures, park the machine on boards or concrete to prevent the track or undercarriage from freezing to the ground and preventing machine movement.

Do not operate or immerse the excavator in water higher than the bottom of the swing bearing [Figure OI-126]

Grease the excavator when it has been operated or immersed in water for a period of time. Greasing forces the water out of the lubrication areas.

Water must be removed from the cylinder rods. If water freezes to the cylinder rod, the cylinder seals can be damaged when the rod is retracted.

Avoiding Track Damage

Mud and water should be removed from the machine before parking. In freezing temperatures, park the machine on boards or concrete to prevent the track or undercarriage from freezing to the ground and preventing machine movement.

Extending The Arm (If Equipped)

The extendable arm can be extended to increase the reach of the excavator.

NOTE:Do not extend and retract the extendable arm as part of the digging cycle. Extend or retract the extendable arm to the desired length and then use the arm, boom and bucket functions for digging.

Remove quick couplers from the storage position (Item 1) [Figure OI-127] and connect to the auxiliary couplers.

Move the lock pin (Item 2) [Figure OI-127] to the top holes (storage position).

Operate the auxiliary control on the right joystick to extend and retract the arm [Figure OI-128]. (See “HYDRAULIC CONTROLS” on PageOI-16.)

NOTE: When transporting the excavator or when using hydraulically operated attachments, the arm must be locked in the retracted position. Fully retract the arm and install the pin (Item 2) [Figure OI-127] through the lower holes of the bracket. (Be sure the pin goes through the mounting brackets and the extendable arm bracket.)