A
MC–01865C
RECOMMENDED POSITION FOR
WORKING ON A SLOPE
C
MC–01857
Water
Level
28 Operation & Maintenance Manual
331/331E/334 Excavator
OPERATING PROCEDURE (Cont’d)
Operating On Slopes (Cont’d)
When operating on a slope, level a work area [A] before
beginning.
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) [B] 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 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 circle [C].
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.
NEUTRAL
REVERSE
1
FORWARD
B
P–16622
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