MASSEY FERGUSON MF230 Shop Manual page 66

SERVICE= MANUAL
withdraw axle shaft with bearing
assembly and shims from housing.
1b reinstall, reverse the removal pro·
cedure while noting the following special
instructions: Install inner oil seal (28) in­
to axle housing with lip f acing inward.
Grease lip of seal before inserting axle
shaft. Use a dial indicator to check end
play between the axles. Be sure axle on
opposite side is moved fully outward
when checking end play. Change
thickness of shims (27) as necessary to
obtain end play of 0.05-0.20
(0.002-0.008 inch). Note that end play is
controlled by total thickness of shims in­
stalled between both axle housings and
retainers, and varying th� thickness of
either shim pack will affect adjustment
of both axles. Tighten retainer cap
screws to 75 N m (55 ft.-lbs.) torque.
·
1b remove axle shaft and housing (29)
as a unit, first drain oil from differential
housing. Raise and support rear of trac­
tor, then remove rear wheel and fender.
Disconnect brake linkage and bitch lift
link and lower link. Support axle hous­
a remove attaching stud
ing with hoist,
nuts and slide axle housing assembly
from tractor.
When left-hand axle housing Is
NOTE:
removed, be careful that differential
assembly Is not accidentally pulled
the axle housing.
'lb
reinstall axle housing assembly,
reverse the removal procedure. Tighten
housing stud nuts to 115 N
torque.
lbs.) Tighten wheel stud nuts to
·
a torque of 230 N m (170 ft.-lbs.).
166. OVERHAUL. The axle retainer
(23-Fig. 159) and bearing cone (25) are
retained on axle shaft by a shrink-fit
'Ib
steel collar (26). renew axle shaft,
bearing, retainer or outer oil seal (22),
first drill the collar, then split collar us­
ing a hammer and chisel. Pull the re­
tainer, bear ing and collar from axle shaft
using a suitable puller or press.
Install a new seal (22) into retainer
with lip of seal facing the bearing cup
(24). Grease lip of seal before installing
retainer over axle shaft. Seat bearing
cone against shoulder of shaft. Heat a
new retaining collar to approximately
400°C (750°F), then quickly install and
seat the collar against the bearing cone.
Renew inner oil seal (28) in axle hous­
ing before •·einstalling axle shaft. Be
sure lip of seal faces inward.
All Models With Planetary
Final Drive
R&R AXLE HOUSING.
167.
remove either axle housing with
planetary assembly as a unit, first drain
oil from differential housing. Support
rear of tractor and remove rear wheel
and tire and the f ender. Disconnect
brake linkage and hitch lift link and
lower link from axle housing. Support
axle housing with a hoist or floor jack,
remove attaching stud nuts and !>eparate
final drive assembly from diff erential
housing.
1b reinstall, reverse the removal pro­
cedure. Tighten housing stud nuts to 115
N
· m (85 ft.-lbs.) torque. Tighten wheel
stud nuts to 270 N · m (200 ft.-lbs.)
mm torque on tractors equipped with 5/8
inch diameter studs, or to 325 N
ft.-lbs.) on tractors equipped with 11116
inch diameter studs.
168. R&R PLANETARY ASSEM-
. BL Y . 'Ib remove planetary assembly,
suitably support rear of tracto•· and
drain oil from final drive planetary hous­
ing. Remove the wheel and tire and the
f ender. Securely apply parking brake to discs in
hold brake
le shaft i s pulled outward.
across outer housing(21-Fig. 160), ring
gear (8) and axle housing
correct alignment when reassembling.
Remove retaining stud
withdraw outer housing and ring gear
assembly.
1b reinstall, reverse the removal pro­
out with
cedure making certain that scribe marks
are con·ectly aligned. Tighten attaching
nuts to a torque of 75 N
Refill drive housing with Massey­
Ferguson
· m (85 ft .. equivalent. Capacity is approximately
U.S.
1.0 L (1.1
169. OVERHAUL PLANET ARY.
disassemble the planetary unit, first
drive roll pins (11-Fig. 160) inward in­
to carrier. Thread a 3/8 inch cap screw
into end of planet gear shaft (15) and pull
shaft from carrier. Remove planet gears
models. Axle oil seal (2) Is not
Fig. 160-Exploded view of
planetary final drive used
Orchard models and MF250
used on late production trac­
tors, and should be removed
and dlsCJJrded when servicing
early production tractors.
Axle housing
I
2 Oil seal
3 Bean ng cup
4 Bearing cone
6 Ar.le shaft
6 Sbtm
7 Gulte1
8 Rtng gear
9 BWtbtng
10 Planet carrie r
Roll ptn
II
12 ThruJJL W aVJeno
'Ib
13 Planet ptnion
14 Needle rollen
16. Ptn1on shaft
16. Sun gear
17. Spacer
18. Snap ring
m (240
·
alignment in
Scribe
case a.x­
a mark
(1) to en ure
s
nuts, then
· m (55 ft.-lbs.).
Permatran III Oil, or
quart).
'Ib
on
24
�
�
Bearing
19 Be art ng cone
cup
20.
Paragraphs
(13) being careful not to lose the loose
needle rollers. There are two
rollerS' in each gear. Withdraw sun gear
through large opening in
a suitable puller, separate the carrier
(10) from drive cover (21). Remove half
rings (18) from wheel axle (24), then of
press axle o u t drive cover. Remove a.xle
shaft (5), inner bearing cup (3), shims (6)
and oil seal (2), if so equipped, from axle
housing.
Note that axle oil seal (2) has been
eliminated on late production tractors to
vide a common reservoir for planetary and
differential housings. When servicing early
production tractors equipped w
L
do not Install a new seal when reassembling.
On all models, planetary housings must still
be refilled with recommended oil, approx­
Imately 1.0 (1.1 U.S. quart) each planetary,
to provide Initial supply of lubricant.
1b reassemble, install a ne\\ oil seal
(22) into drive cover (21) until outer face
of seal i s 2 mm (0.080 inch) above sur·
face of
cover. Lubncate seal
sert wheel axle (24) into cover. Press
bear ing cone (19) onto axle until rollers
are seated in bearing cup (20l. Install
thickest pair of split rings (18) that will
fit into wheel axle groove.
Assemble sun gear and planet gears
into carrier using new roll pins to retain
planet gear shafts. Be sure to account for
all the planet gear needle rollers. Press
carrier assembly onto wheel axle until
it is seated against the split rings.
by
Complete reassembly
disassembly procedure. Check planet
carrier bearing preload as outlined in
paragraph 170.
170. CARRIER BEARING PRE­
LOAD ADJUSTMENT. Planet carrier
bearing preload of 0 . 1 5-0.40 mm
21. Drive cov�r
Oll aeal
22.
1 66 -1 70
rows of 29
car r i e r . Using
t
pro­
h the seal,
i
lip. then
m·
r evers ing the
23. Dun ahield
24. Wheel axle
67