Changing Machine Control Pattern (If Pattern Change Valve Equipped); Control Pattern Change Procedure - Komatsu PC78US-6 Operation & Maintenance Manual

ATTACHMENTS AND OPTIONS
CHANGING MACHINE CONTROL PATTERN (IF PATTERN CHANGE
VALVE EQUIPPED)
When changing the operating pattern of the machine, set the machine in the parking posture, stop the engine, check that the
safety lock lever is at the LOCK position, then change the operating pattern.
To prevent personal injury caused by mistaken operation, test operate the machine and check that the display on the operating
pattern card is the same as the movement of the machine.
If it is not the same, replace the operating pattern card immediately with the card that matches the operating pattern.
When checking the movement of the machine, check carefully that the surrounding area is safe, and operate slowly.

CONTROL PATTERN CHANGE PROCEDURE

1. After setting the machine in the parking posture, set the safety lock lever to the LOCK position, then stop the
engine.
2. Open the inspection cover on the left side of the machine. The
selector valve is inside.
3. Follow the steps explained below, when switching the
patterns.
1) Loosen wing nut (1).
2) Select a new operation pattern with a notch on lever (2)
and then move lever (2) downward so that the notch will
match a dark triangular mark (F) on the valve.
3) After the switching, tighten wing nut (1).
4. Change to an operating pattern card (insert it in the holder) that matches the selected operating pattern.
5. Start the engine, set the safety lock lever to the FREE position, operate the work equipment levers slowly, and
check that the operating pattern has changed.

CHANGING MACHINE CONTROL PATTERN (IF PATTERN CHANGE VALVE EQUIPPED)

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