Service Manual

325/328 Excavator

49 Operation and Maintenance Manual

OPERATING PROCEDURE (CONT’D)

Operating On Slopes (Cont’d)

Figure OI-113

When operating on a slope, level the work area before

beginning [Figure OI-113].

If this is not possible, the following procedures should be

used:

Do not work on slopes which exceed 15 degrees.

Work slowly.

Avoid working with the tracks across the slope, which

reduces 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 it is necessary to

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 collapse.

Figure OI-114

To brake the machine when going down a slope, move the

steering columns (Item 1) [Figure OI-114] to the

NEUTRAL position. This will engage the hydrostatic

braking.

When the engine stops on a slope, move the steering

columns 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.

B-19935

Recommended Position For Working On A Slope

P-49125

Forward

Reverse

Neutral