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Komatsu PC400 - Page 233

Komatsu PC400
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31. OPERATION OF ATTACHMENTS
HYDRAULIC OIL FLOW
When the front part of the pedal is depressed, the hydraulic oil
flows into the left-hand work equipment piping, and, when the rear
part of the pedal is depressed, the oil flows into the right-hand work
equipment piping. (When equipped with breaker, depress only the
front part of the pedal.)
2. SELECTOR VALVES FOR BREAKER AND GENERAL
ATTACHMENT (crusher etc.)
When using the breaker and general attachment (crusher etc.),
turn the rotors of 3-way valves @ to change them over according to
the following illustration.
(The arrow marks indicating the port direction are stamped on the
3-way valve heads.)
Forward direction of machine
Crusher etc.
(2 ways)
NOTICE
Perform work only after the engine is stopped and the work
equipment and machine body are in a stable posture on the ground.
5-13

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