Subaru Legacy BN/BS (2015-2019) Service Manual: Adjustment

Subaru Legacy BN/BS (2015-2019) Service Manual / Continuously variable transmission(tr580) / Reduction drive gear / Adjustment

1. Remove the spring retainers and reduction drive gear shims.

2. Install the transmission case, and secure it with four or five bolts.

Tightening torque:

22 N·m (2.2 kgf-m, 16.2 ft-lb)

3. Measure depth “A” from the ST upper face to the reduction drive gear end face.

ST 499575400

GAUGE

4. Raise and hold the reduction drive gear.

5. Measure depth “B” from the ST upper face to the reduction drive gear end face.

ST 499575400

GAUGE

6. Calculate the following formula.

T mm = A − B − 1.0

[T in = A − B − 0.039]

T: Moving distance of reduction drive gear

A: Depth from the ST upper face to the reduction drive gear end surface

B: Depth from the ST upper face to the reduction drive gear end surface

1.0 mm (0.039 in): Thickness of spring retainer

Moving distance of transfer drive gear [T]	Total shim thickness mm (in)
0.420 — 0.519(0.0165 — 0.0204)	0.3 (0.012)
0.520 — 0.619(0.0205 — 0.0242)	0.4 (0.016)
0.620 — 0.719(0.0244 — 0.0283)	0.5 (0.020)
0.720 — 0.819(0.0283 — 0.0322)	0.6 (0.024)
0.820 — 0.919(0.0323 — 0.0362)	0.7 (0.028)
0.920 — 1.019(0.0362 — 0.0401)	0.8 (0.031)
1.020 — 1.119(0.0402 — 0.0441)	0.9 (0.035)
1.120 — 1.219(0.0441 — 0.0480)	1.0 (0.039)
1.220 — 1.319(0.0480 — 0.0519)	1.1 (0.043)
1.320 — 1.419(0.0520 — 0.0559)	1.2 (0.047)
1.420 — 1.519(0.0559 — 0.0598)	1.3 (0.051)
1.520 — 1.619(0.0598 — 0.0637)	1.4 (0.055)
1.620 — 1.719(0.0638 — 0.0677)	1.5 (0.059)
1.720 — 1.819(0.0677 — 0.0716)	1.6 (0.063)
1.820 — 1.920(0.0717 — 0.0756)	1.7 (0.067)

7. Select one to three reduction drive gear shims so that the total thickness meets the value obtained from step 5).

Part No.	Reduction drive gear shim thickness mm (in)
31288AA260	0.3 (0.012)
31288AA270	0.4 (0.016)
31288AA280	0.5 (0.020)
31288AA290	0.6 (0.024)

Removal

1. Remove the transmission assembly. Automatic Transmission Assembly > REMOVAL2. Remove the air breather hose. Air Breather Hose > REMOVAL3. Remove the control valve body. Control Valve Body > REMO ...

Installation

1. Install the reduction drive gear to secondary pulley.2. Select the reduction drive gear shim. Reduction Drive Gear > ADJUSTMENT3. Install the dish plates, spring retainers, and selected reduction ...

Other materials:

Inspection
1. OPERATION CHECK WHEN NOT USING MEASURING DEVICESCAUTION:When checking operation, be sure to apply the parking brake securely.When an operation check is performed with no measuring devices, a faulty part cannot be identified correctly. But it is possible to identify the outline of the defect by pe ...