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19) Measure the clearance of O/D brake (B0) in the following
manner.
• Blow compressed air into hole (4) shown in figure to activate
1st & 2nd brake (B1) piston, then measure the distance
between the top of O/D brake (B0) plate and the transmis-
sion case – rear cover mating surface.
Call this value (A).
((A) = The value on vernier caliper – width of straight edge )
• Measure the distance from top of O/D brake (B0) piston (on
rear cover) to rear cover – transmission case mating surface.
Call this value (B).
• Clearance = (A) – (B) + 0.4
O/D brake (B0) clearance
Standard : 0.80 – 1.40 mm (0.0315 – 0.0551 in.)
20) If the obtained value is out of standard value, replace brake
disc and plate.
1. Straight edge
2. Vernier caliper
3. Rear cover assembly (with B0 piston)
5. Air gun
6. O/D brake piston adapter
21) Install O/D brake piston adapter (1) thrust needle roller bear-
ing (2) and direct clutch (C0) assembly (3).
AUTOMATIC TRANSMISSION (4 A/T) 7B-123
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