Transfer Clutch Pressure Test - Subaru Legacy 2002 Service Manual

Automatic Transmission
8. Transfer Clutch Pressure
Test
S502159
A: INSPECTION
1. TEST METHODS
¼ MPT model
Check transfer clutch pressure in accordance with
the following chart in the same manner as with line
pressure. <Ref. to AT-16, Line Pressure Test.>
ST 498897700 OIL PRESSURE ADAPTER
SET
ST 498575400 OIL PRESSURE GAUGE
ASSY
AWD mode: "D" range
FWD mode: "P" range, engine speed 2,000 rpm
NOTE:
Before setting in FWD mode, install spare fuse on
FWD mode switch.
(A) Test plug
¼ VTD model
Check transfer clutch pressure in accordance with
the following chart in the same manner as with line
pressure.
ST 498897700 OIL PRESSURE ADAPTER
SET
ST 498575400 OIL PRESSURE GAUGE
ASSY
(A) Test plug

TRANSFER CLUTCH PRESSURE TEST

S502159A10
S502159A1001
B3M1047C
H3M1840B
2. EVALUATION
¼ MPT model
NOTE:
If oil pressure is not produced or if it does not
change in the AWD mode, the transfer duty sole-
noid or transfer valve assembly may be malfunc-
tioning. If oil pressure is produced in the FWD
mode, the problem is similar to that in the AWD
mode.
Standard transfer clutch pressure kPa (kg/cm
Duty ratio Throttle
(%) position
Full
5
closed
2/3
60
throttle
95 Full open
¼ VTD model
Duty ratio Throttle
(%) position
5 Full closed
60 2/3 throttle
AT-18
S502159A1002
2
, psi)
FWD
AWD mode
mode
932 — 1,089
(9.5 — 11.1,
135 — 158)
216 — 294
(2.2 — 3.0, 31 — 43)
— 0 (0, 0)
Standard transfer clutch pres-
2
sure kPa (kg/cm , psi)
932 — 1,089
(9.5 — 11.1, 135 — 158)
216 — 294
(2.2 — 3.0, 31 — 43)
—
—