Komatsu GD555-5 Operation & Maintenance Manual page 95

EXPLANATION OF COMPONENTS
DIFFERENTIAL LOCK SWITCH
(If equipped)
To protect the differential device, operate the differential lock switch when the machine is stopping.
Do not operate it when traveling or turning.
Do not use the differential lock when travelling at high speeds.
If a tire on either side slips, lower the engine speed and, after confirming that no tire is slipping, operate the differential lock.
This switch (10) is used to actuate the differential lock.
Position (A): Differential lock actuated
Position (B): OFF
Differential lock OFF: To be used normally.
This gives smooth traveling and turning, prevents damage to road surfaces, and reduces the
wear of tires.
Differential lock ON: To be used for travelling straight on wet roads or soft ground.
By rotating tires on the right and left sides at the same speed, the one-sided tire slippage can
be prevented.
Avoid using on roads of high wear resistance. It possibly damages the machine seriously.
The differential lock can enhance the straight traveling performance of machines.
It also enables the maximum use of drawbar pull.
Use the differential lock on slopes, soft ground, wet roads, etc.
It helps to prevent the one-sided tire slippage.
For operations such as steering and traveling, turn the differential lock OFF.
The wear of tires is reduced. In addition, road surfaces are less damaged.
When turning on a road having high wear resistance against tires such as concrete road, set the differential lock
OFF.
The wear of tires is reduced and the machine can turn smoothly.
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CAUTION
OPERATION