Komatsu Galeo HD325-6, Operation & Maintenance Manual

Page: 136 / 317

.
OPERATION
OPERATION
SHIFTING GEAR
When shifting gear, do as follows.
This machine has an automatic transmission, so set gear shift
lever (1) to the desired position, and the transmission will
automatically shift to a position to match the travel speed.
When the dump body has risen, the speed range is locked to 2nd
speed at the D position and 1st speed at the 5 - L position. While
traveling, lower the dump body.
NOTICE
When shifting between FORWARD and REVERSE, stop the machine
completely, and run the engine at low idle when shifting the lever. After
moving the gear shift lever, do not depress the accelerator until you
detect that the transmission clutch has engaged.
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.
SHIFTING UP
1. When accelerator pedal (2) is depressed to accelerate the
machine, the lockup clutch is engaged to shift the transmission
to direct drive.
2. If the machine is accelerated further, the transmission will
automatically shift up.
SHIFTING DOWN
If accelerator pedal (2) is released, the machine speed will be
reduced, and the transmission will automatically shift down.
DOWN SHIFT INHIBIT
If the shift lever is operated when the machine is traveling, and the travel speed is faster than the maximum speed
for each gear position, the transmission is not shifted immediately but is shifted down when the travel speed drops.
This prevents overrunning of the engine.
3 - 87