1998 NISSAN PICK-UP Repair Manual

5. Remove front cover and gasket.
6. Remove stopper ring and main drive bearing snap ring.
7. Remove transmission case by tapping lightly.
8. Remove front cover oil seal.
Shift Control Components
1. Mount adapter plate on vise.
2. Remove OD & Reverse fork rod.
SMT370A
SMT371AA
SMT372A
SMT186D
SMT373A
DISASSEMBLYFS5R30A
Case Components (Cont'd)
MT-40

3. Drive out retaining pin from striking lever.
4. While pulling out striking rod, remove striking lever and strik-
ing interlock. Then remove 1st & 2nd, 3rd & 4th and reverse
shift fork.
5. Drive out retaining pin from OD shift fork.
6. Pull out OD fork rod and then remove OD shift fork.
Gear Components
1. Before removing gears and shafts, measure each gear end
play.
Gear end play:
Refer to SDS, MT-61.
lIf not within specification, disassemble and check contact
surface of gear to hub, washer, bushing, needle bearing and
shaft.
2. Remove rear side components on mainshaft and counter
gear.
a. Remove reverse coupling sleeve.
b. Remove mainshaft rear snap ring and counter gear rear snap
ring.
c. Remove C-ring holder and mainshaft C-rings from mainshaft.
Use punch and hammer to remove C-rings.
SMT374AA
SMT375AA
SMT376A
SMT463A
SMT377A
DISASSEMBLYFS5R30A
Shift Control Components (Cont'd)
MT-41

d. Pull out counter gear rear end bearing.
e. Remove reverse idler gear and reverse idler thrust washers.
f. Pull out reverse main gear together with mainshaft spacer
and reverse synchronizer hub. Then remove reverse gear
needle bearings.
g. Pull out reverse counter gear.
h. Remove OD coupling sleeve together with OD baulk ring,
reverse baulk ring and spring inserts.
i. Pull out reverse gear bushing.
j. Pull out OD counter gear together with reverse cone.
SMT378A
SMT380A
SMT773A
SMT770A
SMT771A
DISASSEMBLYFS5R30A
Gear Components (Cont'd)
MT-42

3. Press out mainshaft and counter gear alternately.
4. Remove front side components on mainshaft.
a. Remove 1st gear washer and steel ball.
b. Remove 1st main gear and 1st gear needle bearing.
lBe careful not to lose steel ball.
c. Press out 2nd main gear together with 1st gear bushing and
1st & 2nd synchronizer assembly.
d. Remove mainshaft front snap ring.
e. Press out 3rd main gear together with 3rd & 4th synchronizer
assembly and 3rd gear needle bearing.
SMT772AB
SMT383A
SMT384A
SMT385A
DISASSEMBLYFS5R30A
Gear Components (Cont'd)
MT-43

5. Remove front side components on counter gear.
a. Remove counter gear rear thrust bearing.
b. Remove sub-gear components.
6. Remove main drive gear bearing.
a. Remove main drive gear snap ring and spacer.
b. Press out main drive gear bearing.
7. Remove bearings from case components.
SMT404AA
SMT470A.SMT470A
SMT420AA
SMT063CB
DISASSEMBLYFS5R30A
Gear Components (Cont'd)
MT-44

Shift Control Components
lCheck contact surface and sliding surface for wear,
scratches, projections or other damage.
Gear Components
GEARS AND SHAFTS
lCheck shafts for cracks, wear or bending.
lCheck gears for excessive wear, chips or cracks.
SYNCHRONIZERS
lCheck spline portion of coupling sleeves, hubs, and gears for
wear or cracks.
lCheck baulk rings for cracks or deformation.
lCheck shifting inserts for wear or deformation.
lCheck insert springs for deformation.
Clearance between baulk ring and gear:
Refer to SDS, MT-61.
lIf the clearance is smaller than the wear limit, replace
baulk ring.
SMT398A
SMT386A
SMT423A
SMT387A
SMT140
INSPECTIONFS5R30A
MT-45

lMeasure wear of 2nd and 3rd baulk rings.
a. Place baulk rings in position on synchronizer cone.
b. While holding baulk rings against synchronizer cone as far as
it will go, measure dimensions ``A'' and ``B''.
Dimensions ``A'' and ``B'':
Refer to SDS, MT-61.
lIf dimension ``A'' or ``B'' is smaller than the wear limit,
replace outer baulk ring, inner baulk ring and synchro-
nizer cone as a set.
lMeasure wear of reverse baulk ring.
a. Place baulk ring in position on reverse cone.
b. While holding baulk ring against reverse cone as far as it will
go, measure dimension ``A'' with dial indicator.
Dimension ``A'':
Refer to SDS, MT-61.
c. If dimension ``A'' is larger than the wear limit, replace baulk
ring.
BEARINGS
lMake sure bearings roll freely and are free from noise, crack,
pitting or wear.
SMT041BA
SMT042B
SMT424A
SMT418A
INSPECTIONFS5R30A
Gear Components (Cont'd)
MT-46

Gear Components
1. Install bearings into case components.
2. Install main drive gear bearing.
a. Press main drive gear bearing.
b. Install main drive gear spacer.
c. Select proper main drive gear snap ring to minimize clear-
ance of groove.
Allowable clearance of groove:
0 - 0.1 mm (0 - 0.004 in)
Main drive gear snap ring:
Refer to SDS, MT-61.
d. Install selected snap ring on main drive gear.
SMT484CD
SMT425AA
SMT426A
ASSEMBLYFS5R30A
MT-47