2000 NISSAN PATROL transmission

b. Apply compressed air to oil hole until band servo piston
comes out of transmission case.
+Hold piston with a rag and gradually direct air to oil hole.
c. Remove return springs.
d. Remove springs from accumulator pistons
VB,VCandVD.
e.Apply compressed air to each oil hole until piston comes out.
+Hold piston with a rag and gradually direct air to oil hole.
Identification of accumulator pistonsVAVBVCVD
Identification of oil holesVaVbVcVd
f. Remove O-ring from each piston.
22. Remove manual shaft components, if necessary.
a. Hold width across flats of manual shaft (outside the transmis-
sion case) and remove lock nut from shaft.
b. Remove retaining pin from transmission case.
SAT039B
SAT040BA
SAT523GA
SAT041B
SAT042B
DISASSEMBLY
AT-1142

c. While pushing detent spring down, remove manual plate and
parking rod from transmission case.
d. Remove manual shaft from transmission case.
e. Remove spacer and detent spring from transmission case.
f. Remove oil seal from transmission case.
SAT935A
SAT043B
SAT934A
SAT044B
DISASSEMBLY
AT-1143

DISASSEMBLY AND ASSEMBLY
Forward and overrun clutches are serviced essentially the same
way as reverse clutch is serviced. However, note the following
exceptions.
+Check of forward clutch operation
+Check of overrun clutch operation
+Removal of forward clutch drum
Remove forward clutch drum from transmission case by
holding snap ring.
+Removal of forward clutch and overrun clutch pistons
1. While holding overrun clutch piston, gradually apply com-
pressed air to oil hole.
2. Remove overrun clutch from forward clutch.
SAT860A
SAT861A
SAT865A
SAT862A
SAT863A
REPAIR FOR COMPONENT PARTS
Forward and Overrun Clutches (Cont'd)
AT-1168

3. Remove low one-way clutch inner race, spring retainer and
return spring from transmission case.
4. Remove seal rings from low one-way clutch inner race.
5. Remove needle bearing from low one-way clutch inner race.
6. Remove low and reverse brake piston using compressed air.
7. Remove oil seal and D-ring from piston.
INSPECTION
Low and reverse brake snap ring and spring retainer
+Check for deformation, or damage.
Low and reverse brake return springs
+Check for deformation or damage. Also measure free length
and outside diameter.
Inspection standard:
Refer to SDS, AT-1208.
Low and reverse brake drive plates
+Check facing for burns, cracks or damage.
+Measure thickness of facing.
Thickness of drive plate:
Standard value
1.52 - 1.67 mm (0.0598 - 0.0657 in)
Wear limit
1.4 mm (0.055 in)
+If not within wear limit, replace.
SAT382I
SAT876A
SAT829A
SAT845A
REPAIR FOR COMPONENT PARTS
Low & Reverse Brake (Cont'd)
AT-1172

Low one-way clutch inner race
+Check frictional surface of inner race for wear or damage.
+Install a new seal rings onto low one-way clutch inner race.
+Be careful not to expand seal ring gap excessively.
+Measure seal ring-to-groove clearance.
Inspection standard:
Standard value 0.10 - 0.25 mm (0.0039 - 0.0098 in)
Allowable limit 0.25 mm (0.0098 in)
+If not within allowable limit, replace low one-way clutch inner
race.
ASSEMBLY
1. Install needle bearing onto one-way clutch inner race.
+Pay attention to its direction Ð Black surface goes to
rear side.
+Apply petroleum jelly to needle bearing.
2. Install oil seal and D-ring onto piston.
+Apply ATF to oil seal and D-ring.
3. Install piston by rotating it slowly and evenly.
+Apply ATF to inner surface of transmission case.
SAT877A
SAT878A
SAT112B
SAT879A
SAT880A
REPAIR FOR COMPONENT PARTS
Low & Reverse Brake (Cont'd)
AT-1173

4. Install return springs, spring retainer and low one-way clutch
inner race onto transmission case.
5. Install dish plate, low and reverse brake drive plates, driven
plates and retaining plate.
6. Install snap ring on transmission case.
7. Check operation of low and reverse brake clutch piston.
Refer to ªDISASSEMBLYº, AT-1171.
8. Measure clearance between retaining plate and snap ring.
If not within allowable limit, select proper retaining plate.
Specified clearance:
Standard
0.5 - 0.8 mm (0.020 - 0.031 in)
Allowable limit
2.4 mm (0.094 in)
Retaining plate:
Refer to SDS, AT-1210.
9. Install low one-way clutch inner race seal ring.
+Apply petroleum jelly to seal ring.
+Make sure seal rings are pressed firmly into place and
held by petroleum jelly.
SAT881A
SAT872A
SAT885A
SAT884A
REPAIR FOR COMPONENT PARTS
Low & Reverse Brake (Cont'd)
AT-1174

Assembly (1)
1. Install manual shaft components.
a. Install oil seal onto manual shaft.
+Apply ATF to oil seal.
+Wrap threads of manual shaft with masking tape.
b. Insert manual shaft and oil seal as a unit into transmission
case.
c. Remove masking tape.
d. Push oil seal evenly and install it onto transmission case.
e. Align groove in shaft with drive pin hole, then drive pin into
position as shown in figure at left.
f. Install detent spring and spacer.
g. While pushing detent spring down, install manual plate onto
manual shaft.
h. Install lock nuts onto manual shaft.
SAT931A
SAT932A
SAT933A
SAT901E
SAT936A
ASSEMBLY
AT-1186

2. Install accumulator piston.
a. Install O-rings onto accumulator piston.
+Apply ATF to O-rings.
Accumulator piston O-rings
Unit: mm (in)
AccumulatorVAVBVCVD
Small diameter end 29 (1.14) 32 (1.26) 45 (1.77) 29 (1.14)
Large diameter end 45 (1.77) 50 (1.97) 50 (1.97) 45 (1.77)
b. Install return spring for accumulator A onto transmission
case.
Free length of return spring:
Refer to SDS, AT-1208.
c. Install accumulator pistons
VA,VB,VCandVD.
+Apply ATF to transmission case.
3. Install band servo piston.
a. Install return springs onto servo piston.
b. Install band servo piston onto transmission case.
+Apply ATF to O-ring of band servo piston and transmis-
sion case.
c. Install gasket for band servo onto transmission case.
SAT523GA
SAT938A
SAT939AA
SAT298J
SAT942A
ASSEMBLY
Assembly (1) (Cont'd)
AT-1187