Yuchai YC08-8, Operation And Maintenance Manual

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10)No driving or operating on the slope which
the portrait gradient more than 25°.
11)Don't driving or operating on the slope
which the landscape orientation gradient
more than 15°.
12)Do keep the machine balanceable, don't
drive on the rock or over the roadblock.
13)Don't swerve on the slope.
14)The engine and the hydraulic oil must be
warmed-up on the slope.
15)When the angle between the crawler and
the slope is 900, the machine will be very
dangerous if it rotating. If the machine must
rotate, the bucket should close the ground,
near the machine body, the crawler towards
the top of the slope, and rotate with lower
speed.