V-Belts - Check And Adjustment - Mitsubishi FUSO FE 2006 Owner's Manual

12-46
Simple inspection and service
V-belts – check and adjustment
An excessively loose or tight belt could cause the
engine to overheat, the battery to be inadequately
charged, or the alternator or water pump to mal-
function. Always keep belts adjusted to the proper
tension.
V-belt
inspection
intervals
WARNING
Always stop the engine before inspecting or
adjusting belts.
Ensure that the engine cannot be started
while you are performing checks or adjust-
ments.
CAUTION
Prevent the V-belt from any contact with oil or
grease during check and adjustment.
If soiled with oil or grease, the belts will slip and
this will shorten their service life.
1 Check
1. Confirm that the parking brake lever is pulled.
Prevent the vehicle from moving by blocking the
wheels with chocks. Tilt the cab.
If the vehicle is a crew-cab model, uncover the
engine inspection opening under the assistant
driver's seat.
2. Press the belt with an approximately 98 N (22
lbs., 10 kgf) force at the point midway between
the pulleys, and measure the amount of deflec-
tion.
Z11933
3. If the deflection is not as specified below, the
tension of the belt must be adjusted.
[Amount of deflection when the belt is pressed
with a 98 N (22 lbs., 10 kgf) force at the point
Fan
belt
At the time of pre-operational
check and every 10,000 km
(6,000 miles) or every 12 months
Belt tension
midway between the pulleys]
New belt (when installed):
9 to 11 mm (0.35 to 0.43 in.)
Vehicles
without air
Used belt (when inspected
conditioner
or reinstalled): 11 to 13 mm
(0.43 to 0.51 in.)
New belt (when installed):
7 to 9 mm (0.28 to 0.35 in.)
Vehicles
with air
Used belt (when inspected
conditioner
or reinstalled): 10 to 11 mm
(0.39 to 0.43 in.)
P. 12-5
P. 12-4