Land Rover Defender 90 Workshop 2nd Edition Nas Rover Manual

TRANSFER GEARBOX
3
REPAIR
22.Using a centre punch, mark relationship between
front propeller shaft and transfer box drive
flanges and rear propeller shaft and brake drum
drive flanges.
23.Remove 4 nuts securing front propeller shaft to
transfer box flange. Release propeller shaft from
flange and tie aside.
24.Remove 4 nuts securing rear propeller shaft to
brake drum flange. Release propeller shaft from
flange and tie aside.
25.Remove nut securing tie bar to gear box and 2
bolts securing tie bar to...

41TRANSFER GEARBOX
4
REPAIR
30.Release handbrake outer cable from body.
31.Remove bolt securing ground lead to RH side of
transfer gearbox.
32.Remove bolt securing handbrake cable heat
shield. Remove heat shield.
33.Position adaptor plate,LRT-99-010, and secure
to transmission hoist with 4 bolts.
34.Remove 4 central bolts from transfer gearbox
bottom cover, move hoist into position and
secure adaptor plate to transfer box.
35.Adjust hoist to take weight of transfer gearbox.
36.Remove 2 nuts and bolts...

TRANSFER GEARBOX
5
REPAIR
38.Remove nut securing transfer gearbox RH
mounting to mounting rubber.
39.Remove 3 nuts and bolts securing transfer
gearbox mounting bracket to chassis. Remove
transfer box RH mounting bracket and collect
rubber mounting heat shield.
40.Lower transmission sufficiently to gain access to
harness connectors and transfer box breather
pipe connection.
41.Remove banjo bolt from transfer box breather
pipe and collect 2 sealing washers. Discard
sealing washers.
42.Remove retaining clip...

41TRANSFER GEARBOX
6
REPAIR 64.Remove 4 bolts securing hoist adaptor plate to
transfer box bottom cover.
65.Lower hoist and move aside.
66.Clean threads of the 4 bolts, coat with Loctite
290, and fit to transfer box bottom cover. Tighten
to
25 Nm, 18 lbf/ft.
67.Position handbrake cable heat shield and tighten
bolt.
68.Position ground lead to RH side of transfer box
and tighten bolt.
69.Feed handbrake cable through body.
NOTE: Apply a soap solution to aid fitment
of cable.
70.Position ground strap to...

TRANSFER GEARBOX
7
REPAIR SHIFTLOCK SOLENOID
Service repair no - 41.20.63
Remove
1.Remove centre console.
See CHASSIS AND
BODY, Repair, Centre console
2.Remove carpet from transmission tunnel.
3.Remove 2 screws securing relay panel.
4.Retain 2 centre console screw brackets and
spacers.
5.Release connector J1962 from bracket on tunnel
cover and move relay panel aside to gain access
to tunnel cover top fixings.
6.Remove 15 screws securing tunnel cover.
7.Release and remove tunnel cover.
8.Disconnect...

41TRANSFER GEARBOX
8
REPAIR NEUTRAL SWITCH
Service repair no - 41.20.64
Remove
1.Remove centre console.
See CHASSIS AND
BODY, Repair, Centre console
2.Remove carpet from transmission tunnel.
3.Remove 2 screws securing relay panel.
4.Retain 2 centre console screw brackets and
spacers.
5.Release connector (J1962) from bracket on
tunnel cover and move relay panel aside to gain
access to tunnel cover top fixings.
6.Remove 15 screws securing tunnel cover.
7.Release and remove tunnel cover.
8.Disconnect...

TRANSFER GEARBOX
1
SPECIFICATIONS, TORQUE TORQUE VALUES
LT230Q Transfer gearbox
Nm lbf ft
Bottom cover to transfer case 25.......................................... 18
Transfer breather 15............................................................. 11
Transfer box front drive flange to drive shaft 45.................... 33
Transfer box rear drive flange to drive shaft 45..................... 33
Transfer box to gearbox extension case 45.......................... 33
NOTE: The following torque values are...

AUTOMATIC GEARBOX
1
DESCRIPTION AND OPERATION DESCRIPTION
The automatic transmission is specially tailored version of the ZF 4HP22, used by many manufacturers of high
performance vehicles.
A three element torque converter delivers the power to a four speed epicyclic transmission. First, second and third
gears are reduction ratios but fourth is an overdrive gear for high speed cruising. A direct drive clutch, integral with
the torque converter operates to engage fourth gear.
The gear selector has seven...

44AUTOMATIC GEARBOX
2
DESCRIPTION AND OPERATION Power flow
1st gear D selected
With D selected 1st gear engaged, clutches 4 and 11 are operative. The front planet gear carrier of gear set 9 is
locked against the housing through freewheel 15 when the engine is pulling but freewheels when the vehicle is
coasting. Epicyclic gear set 10 rotates as a solid unit with the front planet gear carrier. In selector position 1 with
1st gear engaged, clutch 8 operates to prevent the loss of drive on the overrun...

AUTOMATIC GEARBOX
3
DESCRIPTION AND OPERATION 3rd gear D selected
Clutches 4, 5, 7 and 11 are engaged. Freewheel 15 and 16 are overrun. Epicyclic gear set 9 and 10 rotate as a
solid unit at a ratio of 1:1.
4th gear D selected
Clutches 4, 5, 7 and 12 are engaged. Freewheel 14, 15 and 16 are overrun. Epicyclic gear set 9 rotates as a solid
unit. The hollow shaft with the sun wheel of epicyclic gear set 10 is locked.
Above a predetermined road speed, clutch 2 locks the gearbox power input direct to the...