Isuzu FVM - Page 59

2-23
IMPORTANT INFORMATION
Appropriate Gearshifts
ADVICE
Downshifts are performed for two
main purposes:
For engine braking on a steep
and/or long downward slope
For responsiveness and economy
on an uphill slope
[Cautions for downshifts]
Allowing the engine to overrun can
result in engine damage. Do not
allow the engine to overrun when
downshifting.
Driving uphill
Downshift early to avoid heavy
engine load.
Driving downhill
In principle, you should use the
same gear(s) that you used to
drive up the hill. Drive at a speed
that does not cause the engine to
overrun (exceed its r/min limit) and
the tachometer needle to enter the
red zone.
•
-
-
•
•
•
Drive at a speed that does not cause the
tachometer needle to enter the red zone.
The green zone is a guide for economical
driving.
The graduation and the red zone of
tachometer are various depending on the
models fitted.
Tachometer → Refer to page 4-13
Gearshift Lever
M/T
/
SA
→ Refer to page 4-99
Selector Lever
V
→ Refer to page 4-104
Selector Button
V
→ Refer to page 4-106
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 
Engine
model
Green zone
(r/min)
Red zone
(r/min)
6HH1 1,000 - 2,300 3,000 - 3,600
6HK1 1,000 - 2,000 2,800 - 3,600
4HK1 1,000 - 2,000 3,300 - 4,000
4608498sec02IMPORTANTINFORMAT2-232-234608498sec02IMPORTANTINFORMAT2-232-23 2015/11/049:53:402015/11/049:53:40