gearbox LAND ROVER DISCOVERY 1999 Workshop Manual
[x] Cancel search | Manufacturer: LAND ROVER, Model Year: 1999, Model line: DISCOVERY, Model: LAND ROVER DISCOVERY 1999Pages: 1529, PDF Size: 34.8 MB
Page 637 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
44-40 REPAIRS
Refit
1.Clean intermediate plate and mating face on
gearbox casing.
2.Apply Petroleum Jelly to new gasket and
position on gearbox casing.
3.Apply Petroleum Jelly to thrust washer and
Torrington race.
4.Correctly position Torrington race and thrust
washer to forward clutch hub.
5.Position converter housing and intermediate
plate assembly to gearbox casing.
6.Clean bolts and plain washers and old sealant
from 4 bolt threads.
7.Apply sealant, Part No. STC 50553 to 4 longer
bolt threads and fit bolts in position shown.
8.Fit remaining bolts and tighten progressively in
a diagonal sequence to 46 Nm (34 lbf.ft).
9.Place LRT-44-003/1 into pump housing, tighten
screws to secure LRT-44-003/1 to input shaft.
10.Clamp a suitable steel base to converter
housing flange.11.Mount DTI gauge and position gauge probe
onto LRT-44-003/1 and zero gauge.
12.Check that the axial end-float is between 0.2 to
0.4 mm (0.008 to 0.016 in). If end-float in not
within limits, replace existing thrust washer,
positioned at rear of intermediate plate, with a
suitable thickness thrust washer to give the
required end-float.
13.Remove DTI gauge and base plate.
14.Fit torque converter oil seal.
+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Torque converter and oil
seal.
M44 1344
M44 1358
LRT-44-003/1
Page 638 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
REPAIRS 44-41
Intermediate plate
$% 44.17.20
Remove
1.Remove intermediate plate gasket.
+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - intermediate plate.
2.Remove selective thrust washer from
intermediate plate.
3.Remove 2 M14 Allen plugs from intermediate
plate, remove and discard sealing washers.
4.Remove 2 M20 plugs from intermediate plate,
remove and discard sealing washers.
5.Remove 2 oil cooler pipe adaptors from
intermediate plate.
6.Remove 8 bolts securing fluid pump to
intermediate plate and carefully remove pump
from intermediate plate.7.Note position and remove pump locating dowel.
8.Remove and discard 'O' ring from pump
housing.
9.Remove 6 bolts securing converter housing to
intermediate plate, and release intermediate
plate from converter housing.
2443
M44 1356
3
M44 1336
M44 1341
M44 1357
Page 639 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
44-42 REPAIRS
Refit
1.Clean intermediate plate and mating faces with
a lint free cloth.
2.Position intermediate plate to converter
housing, fit bolts and tighten evenly to 46 Nm
(34 lbf.ft)
3.Fit new sealing washers to M14 Allen plugs, fit
plugs and tighten to 40 Nm (30 lbf.ft).
4.Fit new sealing washers to M20 plugs, fit plugs
and tighten to 50 Nm (37 lbf.ft).
5.Fit oil cooler adaptors and tighten to 42 Nm (30
lbf.ft)
6.Clean pump housing and mating face on
intermediate plate with lint free cloth.
7.Lubricate new 'O' ring with transmission fluid
and fit to pump housing.
8.Position pump locating dowel into intermediate
plate.
9.Align pump to dowel and position in
intermediate plate.
10.Fit bolts and tighten in a diagonal sequence to
10 Nm (7 lbf.ft)
11.Position LRT-44-003/1 into pump and check
that the pump rotors turn freely.
12.Fit intermediate plate gasket.
+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - intermediate plate.
M44 1342
LRT-44-003/1
Page 640 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
REPAIRS 44-43
Pump - fluid
$% 44.32.01
Remove
1.Remove intermediate plate gasket.
+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - intermediate plate.
2.Remove 8 bolts securing fluid pump to
intermediate plate and carefully remove pump
from intermediate plate.
3.Note position and remove pump locating dowel.
4.Remove and discard 'O' ring from pump
housing.Refit
1.Clean pump housing and mating face on
intermediate plate with lint free cloth.
2.Lubricate new 'O' ring with transmission fluid
and fit to pump housing.
3.Position pump locating dowel into intermediate
plate.
4.Align fluid pump to dowel and position in
intermediate plate.
5.Fit bolts and tighten in a diagonal sequence to
10 Nm (7 lbf.ft)
6.Position LRT-44-003/1 into pump and check
that the pump rotors turn freely.
7.Fit intermediate plate gasket.
+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - intermediate plate.
M44 1336
M44 1341
M44 1342
LRT-44-003/1
Page 641 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
44-44 REPAIRS
Seal - rear extension housing
$% 44.20.18
Remove
1.Remove transfer box
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
2.Drain automatic gearbox oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
3.Remove rear extension housing oil seal from
gearbox. Refit
1.Clean oil seal recess in gearbox and running
surface on input shaft.
2.Lubricate oil seal running surface with
transmission oil.
3.Using tool LRT-44-001 fit oil seal to extension
housing.
4.Fit transfer box
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
5.Fill automatic gearbox with oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
Page 642 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
REPAIRS 44-45
Gasket - rear extension housing.
$% 44.20.19
Remove
1.Drain automatic gearbox oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
2.Remove transfer gearbox.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
3.Remove 9 bolts securing rear extension
housing to gearbox case and remove housing.
4.Remove and discard gasket. Reassembly
1.Clean rear extension and mating face.
2.Position new gasket to gearbox case.
3.Position rear extension housing and tighten
bolts to 25 Nm (18 lbf.ft).
4.Fit transfer gearbox.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
5.Fill automatic gearbox with oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
Page 643 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
44-46 REPAIRS
Parking pawl assembly.
$% 44.28.07
Remove
1.Drain automatic gearbox oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
2.Remove transfer gearbox.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
3.Remove and discard 9 bolts securing extension
housing to gearbox case.
4.Remove extension housing and discard gasket. 5.Remove Torx screw and discard, lift off parking
pawl guide and guide plate.
6.Remove ratchet, spring and pivot pin.
7. Td5 models: Remove spacer from output
shaft.
8.Remove park lock gear.
9.Remove and discard 'O' ring from output shaft.
M44 1109B
97
8
Page 644 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
REPAIRS 44-47
Refit
1.Clean park lock components.
2.Lubricate and fit new 'O' ring to output shaft.
3.Position park lock gear on the output shaft.
4. Td5 models: Fit the spacer.
CAUTION: Ensure that spacer is fitted on
output shaft - Tdi Models only. If spacer is
omitted, park gear and speed sensor may
move out of position.
5.Position pivot pin, spring and ratchet.
6.Position parking pawl guide and guide plate,
tighten Torx screw to 10 Nm (8 lbf.ft).
7.Clean extension housing and gearbox case.
8.Position new gasket to gearbox case.
9.Position extension housing and tighten bolts to
25 Nm (18 lbf.ft).
10.Fit transfer gearbox.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - Diesel.
+ TRANSFER BOX - LT230SE,
REPAIRS, Transfer box - V8.
11.Fill automatic gearbox with oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
Gasket - oil sump
$% 44.24.05
Remove
1.Raise vehicle on ramp.
2.Drain automatic gearbox oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
3.Remove 6 bolts and spacers securing oil sump
to gearbox, remove sump and discard gasket.
Refit
1.Clean oil sump and mating face.
2.Fit new gasket to oil sump, position sump to
gearbox.
3.Position spacers and tighten bolts to 8 Nm (6
lbf. ft).
4.Fill automatic gearbox with oil.
+ MAINTENANCE, PROCEDURES,
Automatic gearbox.
5.Lower vehicle.
Page 645 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
44-48 REPAIRS
Filter - oil
$% 44.24.07
Remove
1.Remove oil sump gasket.
+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - oil sump.
2.Remove Torx screw securing oil pick-up tube
and remove tube.
3.Remove 2 Torx screws securing filter to valve
body and discard 'O' rings. Refit
1.Clean filter and pick-up tube using a lint free
cloth.
2.Fit new 'O' rings to filter.
3.Position filter and tighten Torx screws to 8 Nm
(6 lbf.ft).
4.Position oil pick-up tube and tighten Torx
screw to 8 Nm (6 lbf.ft).
5.Fit oil sump gasket.
+ AUTOMATIC GEARBOX - ZF4HP22
- 24, REPAIRS, Gasket - oil sump.
Page 646 of 1529
AUTOMATIC GEARBOX - ZF4HP22 - 24
REPAIRS 44-49
Cooler - fluid - Td5
$% 44.24.10
Remove
1.Remove intercooler.
+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Intercooler.
2.Disconnect fluid temperature sensor multiplug.
3.Position absorbent cloth under each gearbox
cooler hose connection to collect spillage.
4.Push against coupling release ring and
disconnect both fluid hoses from cooler.
5.Remove screw and release cooler from
radiator.
6.Carefully remove cooler.7.Remove temperature sensor and discard
sealing washer.
Refit
1.Use new sealing washer and tighten
temperature sensor to 14 Nm (10 lbf.ft).
2.Fit cooler, engage with radiator and secure with
screw.
3.Connect temperature sensor multiplug.
4.Ensure connections are clean and fit hoses to
cooler.
5.Fit intercooler.
+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Intercooler.
6.Check and if necessary top up gearbox fluid.