Underdrive Clutch and One-Way No. 3 Clutch Disassembly and Reassembly
Underdrive Clutch and One-Way No. 3 Clutch Disassembly and ReassemblyReference: Automatic Transaxle Unit Disassembly
Reference: Automatic Transaxle Unit Assembly
Reference: Underdrive Clutch and One-Way No. 3 Clutch Components
Reference: Underdrive Clutch and One-Way No. 3 Clutch Preliminary Check
Reference: Underdrive Clutch and One-Way No. 3 Clutch Operation Check
Disassembly
1. Remove snap ring (1), using flat head rod or the like.
2. Remove retaining plates, friction plates, separator plates and cushion plate.
NOTE: Measure thickness of retaining plate and record for reference of piston stroke confirmation.
3. Using special tool and hydraulic press (2), compress underdrive clutch piston return spring (1) until spring seat is pushed down to 1 - 2 mm (0.039 - 0.078 inch) lower than snap ring groove and remove snap ring (3).
Special Tool (A): 09926-98350
CAUTION: Be careful when applying pressure, for overpressure will cause plate section of underdrive clutch piston return spring to deform.
4. Remove underdrive clutch piston return spring (1).
5. For removing underdrive clutch piston (1), install underdrive clutch drum to transaxle case (2).
6. Remove underdrive clutch piston with O-rings by applying compressed air (400 - 800 kPa, 4 - 8 kg/cm2, 57 - 113 psi) from through oil hole (3).
NOTE: If piston does not pop out, it is recommended to use needle-nose pliers from removal.
Reassembly
Reference: Underdrive Clutch and One-Way No. 3 Clutch Inspection
1. After applying A/T fluid to new O-rings and install O-rings (1) to underdrive clutch piston (2).
2. Install underdrive clutch piston (2) to underdrive clutch drum (3) by pushing with fingers.
NOTE: Do not twist or deviate O-rings during installation.
3. Using special tool and hydraulic press (2), compress underdrive clutch piston return spring (1) until spring seat is pushed down to 1 - 2 mm (0.039 - 0.078 inch) lower than snap ring groove and install snap ring (3).
Special Tool (A): 09926-98350
NOTE:
^ When installing return spring, be careful so that return spring will not fall or tilt.
^ Do not align opening in snap ring with lug of underdrive clutch piston return spring at its retainer section.
CAUTION: Be careful when applying pressure, for overpressure will cause plate section of underdrive clutch piston return spring to deform.
4. Install cushion plate C, separate plates S, friction plates F and retaining plate R of coast clutch in the following order.
C -> S -> F -> S -> F -> S -> F -> R
NOTE: Make sure that A section of cushion plate faces toward piston side.
5. Install snap ring (1).
NOTE: Make sure that opening end of ring is not aligned with groove section of drum.
6. Measure underdrive clutch piston stroke again, using special tools.
If measured piston stroke exceeds specified value, replace underdrive clutch retaining plate with new one so that piston stroke is within standard value.
Special Tool
(A): 09900-20607
(B): 09900-20701
Overdrive clutch piston stroke
Standard: 1.22 - 1.69 mm (0.048 - 0.067 inch)
Available underdrive clutch retaining plate thickness 3.6 mm (0.141 inch), 3.8 mm (0.150 inch), 4.0 mm (0.158 inch)
