check oil NISSAN PATROL 1998 Y61 / 5.G Transfer Workshop Manual

TRANSFER
SECTION
TF
CONTENTS
PREPARATION................................................................1
Special Service Tools ..................................................1
Commercial Service Tools ...........................................2
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................3
NVH Troubleshooting Chart.........................................3
DESCRIPTION.................................................................4
Cross-sectional View ...................................................4
ON-VEHICLE SERVICE..................................................5
Replacing Oil Seal .......................................................5
Checking Position Switch ............................................7
REMOVAL AND INSTALLATION....................................8
Removal .......................................................................8
Installation ....................................................................8
TRANSFER GEAR CONTROL.......................................9
MAJOR OVERHAUL.....................................................10
Case Components .....................................................10
Gear Components ..................................................... 11Shift Control Components .........................................12
DISASSEMBLY..............................................................13
REPAIR FOR COMPONENT PARTS............................19
Mainshaft ...................................................................19
Front Drive Shaft .......................................................20
Counter Gear .............................................................21
Main Gear ..................................................................22
Front Case .................................................................24
Front Case Cover ......................................................24
Center Case...............................................................24
Bearing Retainer ........................................................25
Rear Case..................................................................25
Shift Control Components .........................................26
ASSEMBLY....................................................................27
SERVICE DATA AND SPECIFICATIONS (SDS)..........33
General Speci®cations ...............................................33
Inspection and Adjustment ........................................33
TF

NVH Troubleshooting Chart
Use the chart below to help you ®nd the cause of the problem. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
TRANSFER
Reference page
Refer to MA section (``Checking Transfer Fluid'',
``CHASSIS AND BODY MAINTENANCE'').
TF-10
TF-10
TF-10, TF-12
TF-12
TF-11
TF-11
TF-11
TF-11
SUSPECTED PARTS (Possible cause)
FLUID (Level low)
FLUID (Wrong)
FLUID (Level too high)
LIQUID GASKET (Damaged)
OIL SEAL (Worn or damaged)
CHECK SPRING AND CHECK BALL (Worn or damaged)
SHIFT FORK (Worn)
GEAR (Worn or damaged)
BEARING (Worn or damaged)
BAULK RING (Worn or damaged)
SHIFTING INSERT (Damaged)
SymptomNoise 1 2 3 3
Fluid leakage3122
Hard to shift or will not shift 1 1 2 2
Jumps out of gear 1 2 2
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
TF-3

5. Remove speedometer drive gear and oil gutter.
6. Remove snap ring from 2-4 shift rod.
7. Check front drive sprocket end play.
a. While holding front drive sprocket forward as far as it will go,
measure distance ``A'' between rear surface of front drive
sprocket and front surface of 2-4 coupling sleeve.
b. While holding front drive sprocket back as far as it will go,
measure distance ``B'' as same as step a.
c. Determine front drive sprocket end play to be used by the fol-
lowing equation.
Front drive sprocket end play = A þ B
Standard:
0.20 - 0.35 mm (0.0079 - 0.0138 in)
+If not within speci®cation, disassemble and check contact sur-
face of gear to hub, washer, bushing, needle bearing and shaft.
8. Shift 2-4 coupling sleeve to 2WD position.
SMT106B
SMT107B
SMT108B
SMT110B
DISASSEMBLY
TF-14