Dodge Durango (DN). Manual — part 142
(14) Verify that plunger is properly engaged in sec-
tor.
Fig. 63 Install Range Fork And Hub Assembly
1 – RANGE HUB
2 – RANGE FORK
Fig. 64 Mainshaft Assembly Installation
1 – DRIVE SPROCKET
2 – MODE HUB
3 – MAINSHAFT
Fig. 65 Assembling Mode Fork And Sleeve
1 – MODE SLEEVE
2 – MODE FORK AND RAIL
Fig. 66 Mode Fork And Sleeve Installation
1 – MODE SLEEVE
2 – MODE FORK AND RAIL
Fig. 67 Shift Detent Components
1 – PLUNGER
2 – O-RING
3 – PLUG
4 – SPRING
21 - 434
NV231 TRANSFER CASE
DN
DISASSEMBLY AND ASSEMBLY (Continued)
FRONT OUTPUT SHAFT AND DRIVE CHAIN INSTALLATION
(1) Lubricate front output shaft-sprocket assembly,
drive chain and drive sprocket with transmission
fluid.
(2) Assemble drive chain and front output shaft
(Fig. 68).
(3) Start chain on mainshaft drive sprocket.
(4) Guide front shaft into bearing and drive
sprocket onto mainshaft drive gear (Fig. 68).
(5) Install mode spring on upper end of mode fork
shift rail (Fig. 69).
OIL PUMP AND REAR CASE ASSEMBLY/INSTALLATION
(1) Install magnet in front case pocket (Fig. 70).
(2) Assemble oil pickup screen, connecting hose,
and tube.
(3) Install new pickup tube O-ring in oil pump
(Fig. 71).
(4) Insert oil pickup tube in oil pump inlet.
(5) Position assembled oil pump and pickup tube
in rear case. Be sure pickup screen is securely seated
in case slot. Also be sure oil pump locating tabs are
outside rear case (Fig. 72).
(6) Apply 3 mm (1/8 in.) wide bead of Mopar
t gas-
ket maker or silicone adhesive sealer to mounting
flange of front case. Work sealer bead around bolt
holes.
(7) Lift rear case and oil pump and carefully posi-
tion assembly on front case. Be sure case dowels are
aligned and that mode fork rail extends through rear
case before seating rear case on front case.
(8) Install case attaching bolts. Alignment bolts at
each end of case are only ones requiring washers
(Fig. 73).
(9) Tighten case bolts to 27-34 N·m (20-25 ft. lbs.)
torque.
YOKE AND RANGE LEVER INSTALLATION
(1) Install indicator switch in front case. Tighten
switch to 20–34 N·m (15–25 ft. lbs.) torque.
(2) Install range lever, washer and locknut on sec-
tor shaft (Fig. 74). Tighten locknut to 27-34 N·m
(20-25 ft. lbs.) torque.
Fig. 68 Installing Drive Chain And Front Output
Shaft
1 – FRONT OUTPUT SHAFT
2 – DRIVE CHAIN
3 – MAINSHAFT
4 – DRIVE SPROCKET
Fig. 69 Install Mode Fork Spring
1 – MODE SPRING
Fig. 70 Installing Case Magnet
1 – MAGNET
DN
NV231 TRANSFER CASE
21 - 435
DISASSEMBLY AND ASSEMBLY (Continued)
(3) Install new seal washer on front output shaft
(Fig. 76).
(4) Lubricate yoke hub with transmission fluid and
install yoke on front shaft.
(5) Install new seal washer on front shaft.
(6) Install yoke and new yoke nut on front output
shaft (Fig. 75).
(7) Tighten yoke nut to 122-176 N·m (90-130 ft.
lbs.) torque. Use Tool C-3281, or similar tool to hold
yoke while tightening yoke nut.
REAR RETAINER ASSEMBLY AND INSTALLATION
(1) Apply 3 mm (1/8 in.) wide bead of Mopar
t gas-
ket maker or silicone adhesive sealer to mounting
surface of rear retainer. Allow sealer to set-up
slightly before proceeding.
(2) Install rear retainer on rear case. Tighten
retainer bolts to 35–46 N·m (26–34 ft. lbs).
Fig. 71 Pickup Tube O-Ring Position
1 – OIL PUMP
2 – O-RING
Fig. 72 Oil Pump And Pickup Tube Installation
1 – OIL PUMP
2 – PICKUP TUBE
3 – PICKUP SCREEN AND CONNECTOR
Fig. 73 Alignment Bolt Location
1 – ALIGNMENT BOLT AND WASHER (AT EACH END OF CASE)
Fig. 74 Range Lever Installation
1 – RANGE LEVER
2 – WASHER
3 – LOCKNUT
Fig. 75 Output Shaft Yoke Installation
1 – OUTPUT SHAFT YOKE
2 – YOKE NUT
21 - 436
NV231 TRANSFER CASE
DN
DISASSEMBLY AND ASSEMBLY (Continued)
(3) Install new output shaft bearing snap-ring
(Fig. 77). Lift mainshaft slightly to seat snap-ring in
shaft groove, if necessary.
(4) Apply 3 mm (1/8 in.) wide bead of Mopar
t gas-
ket maker or silicone adhesive sealer to mounting
surface ofextension housing. Allow sealer to set-up
slightly before proceeding.
(5) Install extension housing on rear retainer.
(6) Install extension housing bolts and tighten to
35–46 N·m (26–34 ft. lbs.).
CLEANING AND INSPECTION
NV231 TRANSFER CASE
Clean the transfer case parts with a standard
parts cleaning solvent. Remove all traces of sealer
from the cases and retainers with a scraper and 3M
all purpose cleaner. Use compressed air to remove
solvent residue from oil feed passages in the case
halves, retainers, gears, and shafts.
The oil pickup screen can be cleaned with solvent.
Shake excess solvent from the screen after cleaning
and allow it to air dry. Do not use compressed air.
MAINSHAFT/SPROCKET/HUB INSPECTION
Inspect the splines on the hub and shaft and the
teeth on the sprocket (Fig. 78). Minor nicks and
scratches can be smoothed with an oilstone. However,
replace any part that is damaged.
Fig. 77 Install Output Bearing Snap-ring
1 – REAR RETAINER
2 – SNAP RING
3 – REAR BEARING
Fig. 78 Mainshaft, Mode Hub, And Drive Sprocket
1 – MODE HUB
2 – DRIVE SPROCKET
3 – MAINSHAFT
4 – MODE HUB RETAINING RING
Fig. 76 Yoke Seal Washer Installation
1 – YOKE SEAL WASHER
DN
NV231 TRANSFER CASE
21 - 437
DISASSEMBLY AND ASSEMBLY (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст