Cooling System Inspection And Adjustment; Inspection And Adjustment Of Belt Tension; On-Vehicle Inspection And Adjustment - Mitsubishi 6M70 Workshop Manual

ON-VEHICLE INSPECTION AND ADJUSTMENT

1. Inspection and Adjustment of Belt Tension

CAUTION
• Be careful not to allow engine oil to smear the belt. A belt smeared with oil slips, resulting in reduced
cooling efficiency.
• When replacing the belts, replace them as a set to prevent differences in tension between the two belts.
Service standards (Unit: mm)
Location
– Belt tension
Tightening torque (Unit: N·m {kgf·m})
Mark
– Nut (for alternator retention)
– Bolt (for cooler compressor retention)
Special tools
Mark
Belt tension gauge
Inspection after installation
14-6
Maintenance item
For air conditioner
When new
For alterna-
tor
When reused
Parts to be tightened
Tool name and shape
• Press each belt at a central portion between pulleys with a force
• Place the small O-ring on
• Place the large O-ring on
Standard value
15 to 20
19 to 24
25 to 30
Tightening torque
19.6 to 24.5 {2.0 to 2.5}
Part No.
MH062345
Inspection: Tension of belts
of approximately 98 N {10 kgf} as shown in the illustration and
measure the amount of deflection of the belt.
A: Alternator pulley
B: Compressor pulley (for air conditioner)
C: Water pump pulley
D: Crankshaft pulley
to 98 N {10 kgf} (press force).
to the maximum permissible deflection value specified for the
belt.
Limit
–
–
82 {8.4}
Application
Measurement of tension of belt
at the scale mark corresponding
at the scale mark corresponding
Remedy
Adjust
Adjust
Remarks
–
–