KAMAZ 5490 Operation Manual page 264

Operation
Superimposed H
The range change group can be preselected via the
preselection switch at the shift lever (Fig. 7).
7
5
N
3
1
N
8
6
4
2
R
Fig. 7
Upshifting from shift gate 3/4 to 5/6:
• Preselect the high range at the preselection switch.
• Fully depress clutch pedal.
• Shift the transmission into neutral – in doing so, the range
change group starts changing over.
• Select shift gate 5/6.
• Engage the 5th gear of the basic transmission – in the mean
time, the range change group has changed over to high
range.
• Engage the clutch.
• Leave the preselection switch in the selected range.
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high
Splitter group
low
027412
NOTE
Only operate preselector switch when you want to engage the
range change group directly afterwards.
CAUTION
• Constant shifting with high manual shifting force can
cause increased wear on the synchronizer parts.
• In order to avoid transmission synchronizer damage,
changeover to the low range change group must only be
effected when the speed is lower than approx. 28 km/h.
During normal driving, the respectively other range change
group must be preselected only directly before the actual
gearshift. If the range change group is preselected too
early, there can be unintended gearshifts during the next
gear change due to e.g. quickly changing traffic conditions;
this will lead to transmission synchronizer wear.
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