Precautions For Operation - Komatsu WA600-8 Operation & Maintenance Manual

MACHINE OPERATIONS AND CONTROLS

PRECAUTIONS FOR OPERATION

PERMISSIBLE WATER DEPTH
Do not go into water or swampy ground where the water is
deeper than the allowable water depth (up to the bottom sur-
face of axle housing (1)).
After completing the work, wash the machine and lubricate the
parts where water has entered.
If the brake creaks, change all of the axle case oil.
IF BRAKE DOES NOT STOP MACHINE MOVE
If the machine is not stopped by depressing the brake pedal, use the parking brake to stop the machine.
NOTICE
If the parking brake was used as a secondary brake, ask your Komatsu distributor to inspect the park-
ing brake system for any trouble.
PRECAUTIONS WHEN TRAVELING ON SLOPES
LOWER CENTER OF GRAVITY WHEN STEERING MACHINE
When turning the machine on a slope, lower the work equipment to lower the center of gravity before turning.
Turning on a steep slop is dangerous and, thus, prohibited.
TRAVEL DOWNHILL
• The directional lever or directional selector switch must not be set to NEUTRAL position (N) while traveling
or traveling downhill. Set the direction of the directional lever or directional selector switch to the position
that matches the machine traveling direction.
• It is dangerous that the engine brake is disabled and the steering wheel becomes heavier.
• The transmission and other parts of the power train may be damaged, and it may cause serious per-
sonal injury or death.
• If you use the foot brake too frequently during downhill travel, the brake may be overheated and damaged.
Set the gear speed switch to a lower gear speed, and drive the machine with engine brake applied effec-
tively.
• Use R.H. brake pedal to brake the machine.
If the brake oil temperature caution lamp lights up because of frequent use of the brake, take proper actions
according to "BRAKE OIL TEMPERATURE CAUTION LAMP (3-23)" in EXPLANATION OF COMPO-
NENTS.
• If the gear speed switch is not shifted to the appropriate gear, the torque converter oil may be overheated.
Shift down the gear speed by 1 level and lower the torque converter oil temperature.
If the torque converter oil temperature gauge does not enter the green range even at the 1st gear speed,
stop the machine, return the directional lever or directional selector switch to NEUTRAL position (N), and
run the engine at medium speed until the torque converter oil temperature gauge enters the green range.
ACTIONS IF ENGINE STOPS
If the engine stops on a slope, actuate the parking brake immediately, lower the work equipment to the ground
and stop the machine.
Set the directional lever or directional selector switch to NEUTRAL position first, and start the machine again.
PRECAUTIONS WHEN TRAVELING
Avoid a long distance driving of the machine at high speed as much as possible since the tires can be highly
heated, causing premature damage on tires.
3-222
OPERATION