Tension Pulley - Disassemble And Inspect (Fan Side Pta2 Spec); Tension Pulley Inspecting - Mitsubishi S12A2 Service Manual

2.4 Tension Pulley - Disassemble and Inspect (Fan side PTA2 spec)

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