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Komatsu HD325-8 User Manual

Komatsu HD325-8
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• When downshift (deceleration)
Release the accelerator pedal (2).
The machine is decelerated and the transmission automat-
ically 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 the speed, the 3rd speed and 4th speed are 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.
If the travel speed and engine speed continue to rise, the brake is automatically applied to prevent the engine
speed from rising too far.
Neutral coast prevention function
If the gear shift lever is set to NEUTRAL position (N) while the machine is traveling at the travel speed of 4 km/h
or higher, the gear shift cannot be changed to neutral. The centralized warning lamp flashes and the alarm buz-
zer sounds intermittently.
If the travel speed exceeds 4 km/h while traveling downhill with the gear shift lever in NEUTRAL position (N), the
centralized warning lamp flashes and the alarm buzzer sounds intermittently.
When the travel speed exceeds 17 km/h, the gear speed is automatically shifted to the gear speed optimum to
the current travel speed.
When traveling, and particularly when traveling downhill, never set the gear shift lever to NEUTRAL position (N).
Always set the gear shift lever in D to L position while traveling.
METHOD FOR TRAVELING DOWNHILL
When traveling downhill, travel at a safe speed which matches the width of the road, the condition of the road
surface, and other conditions of the jobsite.
OPERATION MACHINE OPERATIONS AND CONTROLS
3-207

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Komatsu HD325-8 Specifications

General IconGeneral
BrandKomatsu
ModelHD325-8
CategoryTrucks
LanguageEnglish

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