Ford Falcon. Manual — part 48
205-02A-16
Rear Drive Axle / Differential — Beam Axle
205-02A-16
GENERAL PROCEDURES (Continued)
5. Repeat Steps 2, 3, and 4.
2. Side gears and pinion mate gears — The gear
teeth of these parts should be checked for
6. It is possible that slight chatter, requiring
extreme wear and possible cracks. The external
additional vehicle operation may remain after
teeth of the side gear, which retain the concentric
Step 5. If chatter still persists after one
groove discs, should also be checked for wear or
hundred (100) kms of vehicle operation, or
cracks.
remains severe after Step 5 above,
disassembly and repair will be necessary.
3. If replacement of one gear is required due to
Follow procedures for disassembly and
wear, etc., then both side gears, pinion mate
assembly as illustrated in the manual.
gears, and washers are to be replaced.
4. Cross Pin - If excessive wear is evident, the cross
Limited Slip Differential Torque Check
pin should be replaced.
1. Clamp Special Tool or an axle shaft in a vice with 5. Clutch Retainer Clips — If wear is evident on any
approximately 75mm of the splined end extending
one of the retainer clips, all four clips must be
above the vice jaws.
replaced.
2. Place the differential unit on its end with the
6. Differential Case — If scoring, wear or metal
flange section above the cap section. Place over
pick-up is evident on the machined surfaces, then
the extended tool/ axle shaft spline.
replacement of the case is necessary.
3. Install the remaining part of Special Tool or an
axle shaft, into the flange section of the case.
4. Using Special Tool E6662 check that the torque
required to continuously rotate the side gears is
as per the values listed in the Specifications.
Item
Description
1
Concentric groove disc
2
Radial groove plate
Item
Description
1
Tool E6662-LSO Torque check
2
Axle shaft bearing
3
Differential assembly
4
Axle shaft
NOTE: LSD units that operate smoothly but with
excessively low torque should be checked as per the
Inspection for Wear sections.
Limited Slip Differential — M86
Inspection for Wear
1. Plates and discs — If any one member of either
stack shows evidence of excessive wear or
scoring, the complete stack is to be replaced on
both sides.
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205-02A-17
Rear Drive Axle / Differential — Beam Axle
205-02A-17
GENERAL PROCEDURES (Continued)
Item
Description
1
Plate
2
Disc
3
Dished spacer
4
Side gear
Limited Slip Differential — M78
LSD units that operate smoothly but with excessively
low torque should be checked as follows.
With the limited slip differential unit fully dismantled
examine the parts for wear and general condition. If
the cone surfaces have a mirror like finish, then the
following rework procedure should be followed. If the
cone surfaces are scored then components should be
replaced and the normal set up procedure followed as
in the repair manual.
1. Mark the cones to ensure they are reassembled
to the original differential cases.
2. Using P800 grade wet and dry abrasive paper,
rub the tapered surfaces in the differential
direction by hand, in order to remove the glazed
coating from the surfaces. Give the surfaces a
final rub using oil on the wet and dry to produce a
fine finish. The abrasive paper must be rubbed
around the surfaces in a uniform manner to avoid
creating hollows in the cone surfaces.
3. Thoroughly clean debris from all components.
4. Use new spring washers.
5. Prior to reassembly coat all surfaces with an
approved LSD lubricant.
6. Reassemble.
7. Check friction torque of unit as in the Torque
Check procedure.
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205-02A-18
Rear Drive Axle / Differential — Beam Axle
205-02A-18
IN-VEHICLE REPAIR
7. Continue to tighten the nut until the marks
Pinion Oil Seal Replacement
previously made on the pinion flange and the nut
are in alignment to re-establish the pinion bearing
NOTE: Refer to Special Tools in this section.
preload.
Removal
8. Install the driveshaft with the marking on the drive
1. Raise the vehicle on a hoist. Disconnect the drive
shaft and the pinion flange in alignment. (Refer to
shaft from the drive pinion flange after marking
Section 205-11.)
the drive shaft and pinion flange to ensure correct
9. Check axle lubricant level and top up if necessary
radial positioning on re-assembly. (Refer to
with specified lubricant.
Section 205-01.)
10. Remove the vehicle from the hoist.
2. Mark the pinion flange and the pinion nut to
establish bearing preload on re-assembly.
3. Hold the pinion flange using tool EN1205B and
remove the self locking nut. As Loctite is used on
the pinion nut, the torque required to release the
nut will be greater than 200Nm.
4. Place a drain pan beneath the pinion housing.
5. Mark the ends of the pinion shaft and a pinion
flange spline for correct re-alignment during
installation.
6. Clean the pinion bearing housing around the oil
seal to remove loose dirt and oil so that it does
not fall into the front of the carrier housing during
the removal or replacement procedure.
7. Remove the pinion flange using tool number
Item
Description
E9258B. Under no circumstances should a
hammer be used.
1
Oil seal installation Tool E9055
8. Remove the pinion oil seal by carefully prying it
2
Drive pinion oil seal
out with a suitable tool.
Installation
NOTE: All hardware must be correctly installed and
torqued to specification.
1. Check the mating splines on the pinion shaft and
pinion flange for burrs and if necessary clean up
with fine crocus cloth. Wipe the flange and shaft
clean. Remove any Loctite thread locking
compound from the pinion nut of flange thread.
2. Clean the oil seal seat. The lubricant return
passage in the axle housing must be clear.
3. Lubricate the seal lips and the outside diameter
with oil and install the seal, using the correct
special tool. Seal location is from flush to 0.25
mm below the machined carrier face.
4. Align the pinion flange spline mark with the pinion
shaft spline mark and start the flange onto the
pinion splines by hand. A smear of lubricant on
the pinion splines will assist in installation.
5. Install the pinion nut onto the pinion thread
(without Loctite) and wind the nut down to pull the
flange onto the pinion spline until no axial end
play can be detected by hand in the pinion
assembly. Remove the pinion nut.
6. Apply Loctite 262 Liquid Threadlocker to the
pinion thread and reinstall the nut, tightening to
100Nm.
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205-02A-19
Rear Drive Axle / Differential — Beam Axle
205-02A-19
REMOVAL AND INSTALLATION
Axle Shaft Assembly
Removal
1. Raise the vehicle and remove the road wheel.
(Refer to Section 100-02.)
2. Disconnect the park brake cable from the park
brake and remove from axle. (Refer to Section
206-05.)
Remove the caliper.
Remove ABS sensor (if ABS fitted).
Remove the disc from the axle flange.
NOTE: If ABS is fitted, take care not to damage
tone wheel.
3. Working through the access hole in the axle
flange using an allen key to remove the four
bearing retainer plate bolts.
4. Withdraw the axle shaft and bearing assembly.
NOTE: The bearing cup typically may be loose in
the axle housing or may fall out on axle
disassembly. Friction surfaces of brake parts must
be kept contamination free.
Item
Description
1
Seal
2
Bearing assembly
3
Bearing retaining collar
4
Axle housing
5
Brake anchor bracket
6
Bearing retaining plate
Item
Description
7
Tone wheel (ABS)
1
Score - M6
2
Shield
Installation
3
Bolt - M12
NOTE: All hardware must be correctly installed and
torqued to specification.
4
Caliper
5
Rotor
NOTE: Friction surfaces of brake parts must be kept
contamination free.
6
Asle Assy.
1. If the bearing cup was previously removed install
the bearing cup in the axle housing.
NOTE: A new bearing should always be used if
the axle oil seal, retaining collar, retaining plate or
tone wheel have been replaced. Ensure that the
cup back face is seated against the back shoulder
in the housing. The bearing must be lubricated
with axle lubricant before installation. Also, apply
a film of MIC75B Grease to the outside diameter
of the seal prior to installation. Refer to Rear Axle
Bearing And Seal Replacement section for how to
service the axle assembly once removed from the
tube housing.
G98783 en
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