Set gear shift lever (1) to a desired position.
This machine is equipped with automatic transmission, so the
transmission will shift automatically to match the travel speed.
When the dump body is raised, if the gear shift lever is at D po-
sition, the transmission is fixed in 2nd or 1st speed, and if it is
at positions 1 to 5, the transmission is fixed in 1st speed. Keep
the dump body lowered when traveling.
NOTICE
• When switching direction (FORWARD or REVERSE),
stop the machine completely and run the engine at low
idle, then select the direction of travel.
After moving the gear shift lever, do not accelerate un-
til it is detected that the transmission clutch is engag-
ed.
• Do not operate the gear shift lever with the accelerator
pedal depressed.
This will cause a big shock, and will also reduce the
service life of the machine.
Upshift (acceleration)
Depress accelerator pedal (2) gradually to accelerate the ma-
chine.
The lockup clutch is engaged and the direct drive starts.
If the machine is accelerated further, the transmission will auto-
matically shift up.
Downshift (deceleration)
Release decelerator pedal (2).
The machine is decelerated and the transmission automatically
shifts down.
Downshift inhibit
If the gear shift lever is operated when the machine is traveling, the travel speed may be faster than the maxi-
mum speed allowed for the new speed range. In this case, do not shift gear immediately. Reduce the travel
speed and then shift down. This will prevent the engine from overrunning.
Downshift when brake pedal is used
When using the brake pedal to reduce speed, the 3rd speed is held for longer than normal to reduce the shock
when shifting gear.
Engine overrun prevention function
If the engine speed exceeds the allowable range while traveling, the engine overrun caution lamp and the cen-
tralized warning lamp light up and the alarm buzzer sounds intermittently.
OPERATION
MACHINE OPERATIONS AND CONTROLS
3-189
Содержание HM400-5
Страница 2: ......
Страница 23: ...LOCATION OF SAFETY LABELS SAFETY SAFETY LABELS 2 5 ...
Страница 24: ...SAFETY LABELS SAFETY 2 6 ...
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Страница 61: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1 ...
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Страница 323: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1 ...
Страница 409: ...SPECIFICATIONS 5 1 ...
Страница 411: ...SPECIFICATIONS SPECIFICATIONS 5 3 ...
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Страница 413: ...ATTACHMENTS AND OP TIONS Before reading this chapter read and understand the SAFETY 6 1 ...
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Страница 431: ...REPLACEMENT PARTS 7 1 ...
Страница 446: ...HM400 5 ARTICULATED DUMP TRUCK Form No EENAM03380 2015 KOMATSU All Rights Reserved Printed in Belgium 09 2015 ...