Komatsu HD325-8, Operation & Maintenance Manual

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1.
Turn the starting switch (1) to ON position.
2.
Press the secondary steering switch (2) to make it “ON”.
3.
Turn the steering wheel (3) and check that the steering can
be operated.
If the steering cannot be operated when the steering wheel
(3) is turned, ask your Komatsu distributor for repair.
METHOD FOR CHECKING AUTOMATIC SECONDARY STEERING
1.
Turn the starting switch (1) to START position and start the
engine.
2.
Check that the brake oil pressure caution lamp is not lit on
the machine monitor (2).
3.
Pull the retarder control lever (3) fully.
4.
Stop the engine.
5.
Turn the starting switch (1) to ON position.
6.
Set the parking brake switch (4) to “TRAVEL” position, and
check that the secondary steering motor operates in 1 sec-
ond.
While the secondary steering motor is in operation, the
secondary steering pilot lamp (5) lights up.
7.
After checking, set the parking brake switch (4) to “PARK-
ING” position.
8.
Turn the starting switch (1) back to OFF position.
REMARK
If the secondary steering motor operates 1 minute or longer,
the secondary steering motor long-operation caution lamp (6)
lights up.
Do not operate the secondary steering motor for a long time.
METHOD FOR CHECKING BACKUP ALARM OPERATION
1.
Turn the starting switch to ON position.
2.
Place the gear shift lever in R position and check that the backup alarm sounds.
3.
After checking, turn the starting switch back to OFF position.
METHOD FOR CHECKING HORN OPERATION
1.
Turn the starting switch to ON position.
MACHINE OPERATIONS AND CONTROLS OPERATION
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