Mitsubishi S12A2 User Manual

10-23
Chapter 10 COOLING SYSTEM
2.4 Tension Pulley - Disassemble and Inspect (Fan side PTA2 spec)
Tension Pulley - Disassemble and Inspect (Fan side PTA2 spec)
2.4.1 Tension Pulley - Inspect
Measure the bearing fit in tension pulley and on shaft. If abnormal wear or damage is shown, replace the bearing, pulley or ten-
sion bracket.
1
2
3
4
5
6
7
8
9
10
Belt groove wear
Replace
Rotation
Lip surface wear,
flaw, deterioration
Crack, flaw,
deflection of shaft,
oil hole clogging
PTA2 spec
Disassembling Sequence
1 Bearing cover
2 Snap ring
3 Plain washer
4 Ball bearing
5 Tension spacer
6 Ball bearing
7 Tension pulley
8 Oil seal
9 Oil seal sleeve
10 Bracket
Item Standard value Standard value
Inside diameter of tension pulley bearing fit ø120 [4.72 in.] 119.972 to 119.994 mm [4.7233 to 4.7242 in.]
Bearing
Outside diameter ø120 [4.72 in.] 119.985 to 120.000 mm [4.7238 to 4.7244 in.]
Inside diameter ø45 [1.77] 44.988 to 45.000 mm [1.7712 to 1.7717 in.]
Outside diameter of bracket bearing fit ø45 [1.77] 44.984 to 45.000 mm [1.7710 to 1.7717 in.]

Mitsubishi S12A2 Specifications

General

Brand	Mitsubishi
Model	S12A2
Category	Engine
Language	English