1998 NISSAN PATROL Transfer Workshop Manual

Front Case
SHIFT SHAFT OIL SEAL
Removal
+Use a screwdriver to pry out old seal.
+Be careful not to damage case.
+Always replace with a new one whenever it has been removed.
Installation
+Install new shift shaft oil seal until ¯ush with case.
+Before installing, apply multi-purpose grease to seal lip.
Front Case Cover
Removal
+Take out old seal from inside of front case cover.
+Be careful not to damage front case cover.
Installation
+Install new front case cover oil seal until it stops.
+Before installing, apply multi-purpose grease to seal lip.
Center Case
CENTER CASE OIL SEAL
Removal
+Remove center case oil seal.
SMT138B
SMT139B
SMT263D
SMT141B
SMT146B
REPAIR FOR COMPONENT PARTS
TF-24

Installation
+Install center case oil seal.
Bearing Retainer
OIL CATCHER
Removal
+Drive out oil catcher from inside of bearing retainer.
+Be careful not to damage bearing retainer.
Installation
+Install oil catcher until it stops.
+Be careful not to damage or distort oil catcher or bearing
retainer.
+Before installing, apply multi-purpose grease to seal lip.
Rear Case
REAR OIL SEAL
Removal
+Pull out rear oil seal.
Installation
+Install new rear oil seal until it stops.
+Before installing, apply multi-purpose grease to seal lip.
SMT147B
SMT142B
SMT143B
SMT144B
SMT145B
REPAIR FOR COMPONENT PARTS
TF-25

AIR BREATHER
+Install as shown in illustration.
Thread locker:
Refer to TF-10.
Shift Control Components
INSPECTION
+Check contact surface and sliding surface for wear, scratches,
projections or other faulty conditions.
L & H SHIFT ROD & FORK
+Assemble as shown in illustration.
* This pin is the same size as the one for 2-4 shift rod.
2-4 SHIFT ROD & FORK
+Assemble as shown in illustration.
* These pins are the same size.
+Pay attention to the direction of fork guide collar.
SMT148B
SMT360A
SMT149B
SMT150B
SMT033B
REPAIR FOR COMPONENT PARTS
TF-26

1. Install cross shaft.
2. Assemble front case.
a. Install main gear assembly by tapping it lightly with a soft ham-
mer.
b. Apply sealant to the mating surface and bolts of front case
cover and install it on front case.
+Apply recommended sealant to these ten bolts.
+Tightening torque
A:
:16-21Nzm (1.6 - 2.1 kg-m, 12 - 15 ft-lb)
B:
:19-24Nzm (1.9 - 2.4 kg-m, 14 - 17 ft-lb)
c. Apply gear oil to needle bearing and install it into main gear.
d. Install counter gear assembly by tapping it lightly with a soft
hammer.
SMT151B
SMT152B
SMT153B
SMT326A
SMT264D
ASSEMBLY
TF-27

e. Insert interlock plunger into front case.
f. Install L & H shift rod and fork assembly with coupling sleeve.
g. Install 2-4 shift rod.
h. Install switches, check balls, check springs and plugs.
+Apply sealant to switches and plugs.
3. Select counter gear rear bearing shim.
Counter gear end play:
0 - 0.2 mm (0 - 0.008 in)
a. Measure distance ``A'' between upper surface of counter gear
rear bearing and mating surface of front case.
SMT090B
SMT155B
SMT265D
SMT259D
SMT335A
ASSEMBLY
TF-28

b. Select suitable shim using SDS table as a guide.
Counter gear rear bearing shim:
Refer to SDS, TF-33.
4. Place suitable shim on counter gear rear bearing with grease.
5. Apply gear oil to each part in front case.
6. Install mainshaft on center case.
a. Install mainshaft on center case by tapping it lightly.
+Apply gear oil to mainshaft front bearing.
b. Install bearing retainer.
c. Install low gear and its bearing to mainshaft.
+Apply gear oil to needle bearing.
SMT157B
SMT158B
SMT159B
SMT407A
SMT160B
ASSEMBLY
TF-29

d. Install L & H hub and snap ring to mainshaft.
+Pay attention to direction of L & H hub.
e. Measure end play of low gear.
Standard:
0.20 - 0.35 mm (0.0079 - 0.0138 in)
7. Apply sealant to mating surface and put center case assembly
onto front case and tighten bolts.
8. Assemble center case assembly.
a. Put drive chain onto front drive sprocket and front drive shaft,
and then put them in center case.
b. Install front drive shaft by tapping it lightly with a soft hammer.
+Make sure shafts are lined up in case.
SMT161B
SMT117B
SMT163B
SMT164B
SMT165B
ASSEMBLY
TF-30

c. Apply gear oil to needle bearings and install them into front
drive sprocket.
+These needle bearings can be easily installed if front drive
sprocket is rotated during their installation.
d. Install 2-4 coupling sleeve with 2-4 shift fork.
+Pay attention to direction of coupling sleeve.
e. Install shifting inserts and spread spring.
+Pay attention to direction of shifting inserts.
f. Install baulk ring and then install clutch gear.
g. Install mainshaft rear bearing.
+Pay attention to its direction.
SMT166B
SMT167B
SMT168B
SMT169B
SMT170B
ASSEMBLY
TF-31