Mitsubishi Fuso FK 2008, Руководство пользователя

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7-10
Starting and driving
2 Downhill roads
•
If you are going to drive down a steep road or a
road with a long downhill grade, test the service
brake and exhaust brake in advance to make
sure that they are functioning well.
•
Place the vehicle in the gear used when driving
uphill and use engine braking and exhaust
brake to help slow the vehicle. Never drive
downhill at high speeds.
If your vehicle is equipped with an automatic
transmission, leaving the range selector lever in
the “D” position will result in insufficient engine
braking, causing the vehicle to speed up too
much. Add engine braking as required by shift-
ing down the gears.
Other than FM65F:
Shift down to “3”, “2” or “L” position. Use the ser-
vice brakes to prevent engine overrev when
shifting to “2” or “L” position.
FM65F:
Shift down to “5”, “4”, “3”, “2” or “1” position. Use
the service brakes to prevent engine overrev
when shifting to “2” or “1” position.
•
On slippery roads, avoid sudden engine braking
since this could cause a skid.
•
Never coast downhill with the gearshift lever in
neutral (manual transmission vehicles) or the
range selector lever in the “N” position (auto-
matic transmission vehicles). Doing so makes
both engine braking and exhaust brake inopera-
tive, which in turn excessively burdens the ser-
vice brakes. This also causes the brakes to
overheat and the brake linings to wear out pre-
maturely.
In an automatic transmission vehicle, this can
also cause damage to the transmission.
•
Avoid overusing the service brakes as the
resultant overheating could cause undesirable
vapor lock (FK61F) and fading, both of which
contribute to poor braking.
NOTE:
•
“Vapor lock” refers to the condition in which the
brake system overheats, causing the brake fluid
to boil and form bubbles that weaken hydraulic
pressure, resulting in poor braking.
•
“Fading” refers to the condition in which the
brake linings overheat to the point where friction
with the brake drum is significantly reduced.
This also results in poor braking.
Z11321
FKFM.book Page 10 Wednesday, June 6, 2007 11:43 AM