Hitachi ZAXIS 120-3 class Operator's Manual page 23

Hydraulic
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• Driving across the face of a slope or steering on a slope
may cause the machine to skid or turnover. If the direc-
tion must be changed, move the machine to level ground,
then, change the direction to ensure safe operation.
• Avoid swinging the upperstructure on slopes. Never at-
tempt to swing the upperstructure downhill. The machine
may tip over. If swinging uphill is unavoidable, carefully
operate the upperstructure and boom at slow speed.
• If the engine stalls on a slope, immediately lower the
bucket to the ground. Return the control levers to neutral.
Then, restart the engine.
• Be sure to thoroughly warm up the machine before as-
cending steep slopes. If hydraulic oil has not warmed up
sufficiently, sufficient performance may not be obtained.
• Use a signal person when moving, swinging or operating
the machine in congested areas. Coordinate hand signals
before starting the machine.
• Before moving machine, determine which way to move
travel pedals/levers for the direction you want to go.
When the travel motors are in the rear, pushing down on
the front of the travel pedals or pushing the levers for-
ward moves the machine forward, towards the idlers.
An arrow-mark seal is stuck on the inside surface of the
side frame to indicate the machine front direction.
• Select a travel route that is as flat as possible. Steer the
machine as straight as possible, making small gradual
changes in direction.
• Before traveling on them, check the strengths of bridges
and road shoulders, and reinforce if necessary.
• Use wood plates in order not to damage the road surface.
Be careful of steering when operating on asphalt roads in
summer.
• When crossing train tracks, use wood plates in order not
to damage them.
• Do not make contact with electric wires or bridges.
• When crossing a river, measure the depth of the river
using the bucket, and cross slowly. Do not cross the river
when the depth of the river is deeper than the upper
edge of the upper roller.
• When traveling on rough terrain, reduce engine speed.
Select slow travel speed. Slower speed will reduce pos-
sible damage to the machine.
• Avoid operations that may damage the track and under-
carriage components.
• During freezing weather, always clean snow and ice from
track shoes before loading and unloading machine, to
prevent the machine from slipping.
SAFETY
Arrow -mark
S-12
Travel Motor
M104-05-008
M178-03-001
SA-011

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