Mitsubishi MOTORS Space Runner 1998, Руководство по ремонту

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ENGINE <4G9> -
On-vehicle Service
11B-6
ON-VEHICLE SERVICE
DRIVE BELT TENSION CHECK AND
ADJUSTMENT
ALTERNATOR DRIVE BELT TENSION CHECK
Check the drive belt tension by the following procedure.
<When using the MUT-
II
>
1. Connect the special tool (belt tension meter kit) to the
MUT-
II
.
2. Connect the MUT-
II
to the diagnosis connector.
3. Turn the ignition switch to ON and select “Belt Tension
Measurement” from the menu screen.
4. Hold the microphone to the middle of the drive belt
between the pulleys (at the place indicated by the arrow),
about 10 - 20 mm away from the rear surface of the
belt and so that it is perpendicular to the belt (within
an angle of ± 15 _ ).
5. Gently tap the middle of the belt between the pulleys
(the place indicated by the arrow) with your finger as
shown in the illustration, and check that the vibration
frequency of the belt is within the standard value.
Caution
(1) The temperature of the surface of the belt should
be as close as possible to normal temperature.
(2) Do not let any contaminants such as water or
oil get onto the microphone.
(3) If strong gusts of wind blow against the
microphone or if there are any loud sources of
noise nearby, the values measured by the
microphone may not correspond to actual values.
(4) If the microphone is touching the belt while the
measurement is being made, the values measured
by the microphone may not correspond to actual
values.
(5) Do not take the measurement while the vehicle’s
engine is running.
<When using a tension gauge>
Use a belt tension gauge to check that the belt tension is
within the standard value.
MB991668
(Microphone)
Tap lightly with
a finger.
Alternator
pulley
Crankshaft
pulley
15 _
15 _
10 - 20 mm
Belt tension
gauge
Crankshaft pulley
Alternator
pulley