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CHAPTER 5. OPERATING TECHNIQUES
The following information details suggested tech-
niques to obtain the safest and most efficient use of
your machine.
Safety Rules
Ensure there is sufficient space for the machine be-
fore entering confined areas.
Accidents and injuries must be reported immedi-
ately. Site management must also be informed of
any "narrow escapes" and areas and situations
which could present an accident risk.
If possible, after an accident, the machine must be
left in its position.
Do not do anything to the machine that may hamper
an investigation into the accident.
Follow the instructions given by the site manage-
ment.
Gear Selection
The transmission makes it unnecessary to select the
right moment to upshift or downshift during changing
travelling conditions. However knowledge of the
ranges and when to select them will make machine
control and the operator's job easier.
The following table is a brief summary of the range
selections covered in this manual.
Completely stop the machine before shifting
R
from a forward gear to R or from R to a forward
gear.
‹ WARNING
Do not allow the engine to coast in N, there is no
engine braking and the operator may lose con-
trol. Coasting in neutral will also cause
transmission damage.
Use N to start the machine and for periods of
N
engine idle operation. N is selected by the ECU
at start-up. Always select N before turning off
the engine.
The shift from N to D or R is inhibited when engine
speed is above idle. N must be re-selected and the
idle speed reduced before the shift will occur. When
shifts to D or R are inhibited, the digit on the shift se-
lector will flash.
870984-01
June 1, 1999
The transmission will initially attain 1st gear
D
when D is selected. As machine speed in-
creases,
the
transmission
automatically through each gear. As the ma-
chine slows, the transmission will downshift
automatically. The shift selector will display the
highest range available.
Even though D is selected, it may not be at-
tained due to active inhibit functions such as
high throttle or engine idle speeds. Check for
active diagnostic codes if D is not attained.
‹ WARNING
If the operator just downshifts or just uses the
service brakes while going downhill, he may
lose full control of the machine.
To help in keeping full control on downhills, use a
combination of downshifting, braking and the retar-
der.
Downshifting to a lower gear increases engine
braking and helps the operator maintain full control.
The transmission has a feature which prevents
automatic upshifting above the lower gear selected.
However during downhill operation, if engine gov-
erned speed is exceeded in the lower gear, the
transmission may upshift to the next higher gear.
This will reduce braking and may cause a loss of
control.
Apply the service brakes to prevent exceeding en-
gine governed speed in the lower gear selected.
Occasionally road conditions, load or traffic
5
conditions will make it desirable to restrict auto-
4
matic shifting to a lower gear. Lower gears
3
provide greater engine braking for going down
grades (the lower the gear; the greater the
2
braking effect).
1
The shift control utilises ↑ (Up) and ↓ (Down)
arrow buttons to select individual forward
gears. The shift control will display the opera-
tor's choice.
Even though a lower gear was selected, the
transmission may not downshift until machine
speed is reduced.
will
upshift
37
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