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12. OPERATION
12.5 SHIFTING GEAR
Shift gear as follows.
This machine has an automatic transmission, so set 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 shift lever 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 idling when
shifting the lever.
After moving the shift lever, do not depress the accelerator until
you detect that the transmission clutch has engaged.
‡ Do not operate the shift lever with the accelerator pedal de-
pressed.
This will cause a big shock, and will also reduce the life of the
machine.
SHIFTING UP
1. When accelerator pedal 2 is depressed to accelerate the ma-
chine, the lockup clutch is engaged to shift the transmission to
direct drive.
2. If the machine is accelerated further, the transmission will auto-
matically 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
This prevents the engine from overrunning if the shift lever is
operated mistakenly.
OVERRUN PREVENTION DEVICE
While operating the machine, if the red range lights up, simul-
taneously the warning buzzer sounds and the central warning lamp
flashes, then operate the machine lowering the engine speed and
the traveling speed.
If the travel speed goes above the maximum speed for the range
of the shift lever, the overrun prevention device is actuated to act the
retarder and to reduce the travel speed.
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