MASSEY FERGUSON MF230 Shop Manual page 47

1 1 3 -1 1 4
Paragraphs
unit and headlights, then pull all wires
out of the way. Disconnect throttle rod,
fuel shut-off cable, engine oil pressure
gage line, tachometer cable, air cleaner
hose and ground strap. On models so
equipped, disconnect hydraulic oil lines,
rear
power steering lines, drag links, radius
rods
and/or horizontal mufller. On all
models, remove screws attaching the
fuel tank mounting bracket and
block tank up as shown in Fig. 115 us·
ing a wooden block. On models with
steering drag links, secure drag links
wheels are straight and will not turn.
Support engine and transmission in­
dependently so engine and front system
can be moved forward away from
transmission. Remove screws securing
engine to transmission housing, remove
starting motor and install guide studs.
Carefully move engine and front
assembly forward shown in Fig. 115.
as
When rejoining tractor,
a guide stud in each side of transmission
housing to assist in alignment. Turn
flywheel to align clutch plate splines
with transmission and pto input shaft
splines. When engine and transmission
flanges meet, install reta ining cap
screws and remove guide studs. Do not
cap screws to force units together as
use
damage to clutch and transmission may
result. Complete installation by revers­
ing the splitting procedure. Check clutch
linkage adjustment as outlined in
paragraph 110 or 1 1 1 .
150
nm
(6 i n . )
" "
T
Fig. 116-Specle/ bolts
facilitate clutch remove/, repair end Instillation.
Weld e cro81 handle toe alx-lnch place of 114 1nch
UNC threaded rod. A forcing nut end washer Is
uted to comprus the clutch springs.
48
All Models So Equipped
113. REMOVE AND REINSTALL.
Refer to paragraph 112 and separate
eng ine from transmission. Punch mark
the clutch cover (16-Fig. 118), pressure
plate (14), drive plate (12), pressure plate
(7) and engine flywheel
reinstalled in their original positions. In­
stall the three special bolts shown in Fig.
so
sure to use
be
Fig. 117-Vlew showing removel/lnstel/11/on of
typical dual clutch assembly. Air ring Is not used
Fig. 1 18-Exploded view of
typical dual clutch assembly.
3 Llnk
Air ring (5) Is not used on later
I
Ptn
7 Pnau�
2
Cou�r pm
4 L10k
6 A1r nng
6
'J'ranontDIOn
l«knut
8
9 lnaulaltng wa$her
10 Clutch
can
be made to II A<IJuatt l\l l
12 Dnvt
13 Pto ciuw:
14 Pre&Oure
16 Sellevtlle
16 Clutch cover
Fig. 115-V/ew ol tntctorspllt
showing location of wooden
block to hold luel tenlt,
wedge block to prevent lip­
ping and guide studs to aid In
sale separation end joining.
DUAL CLUTCH
parts can
so
on later models.
22 21
models.
dlJC
ni
ptn
plau-
8
19 1 17
17
apnna
ocrew
plate
plate
spnng Rrleu" lr•·•r
Locknut
18
MASSEY -FERGUSON
116 and tighten nuts to compress clutch
%
springs. Three inch UNC cap screws
8
that are 2-1 inches (54 mm) long can
also be used instead of special "T" bolts
to compress clutch spnngs. Remove re·
taining cap screws and Lift clutch
assembly from flywheel as shown in Fig.
117.
reinstall clutch, first position
'Ib
so
transmission friction disc (6-Fig. 118)
in flywheel with hub side f acing away
from flywheel. Position air ring (5) on
flywheel if equipped. Use a suitable
pilot shaft to align clutch discs and in·
stall clutch assembly while aligning
previously made assembly punch
Tighten retaining cap screws to 41 N
(30 ft.-lbs.) torque. Remove "T" bolts and
pilot shaft. Adjust clutch,
outlined in paragraph 115.
114. OVERHAUL. Before disassem­
bling clutch, punch mark the clutch
cover, pto pressure plate, drive plate and
transmission pressure plate
be mbled in the same relative posi·
reasse
be tions. release lever torsion
Unhook
springs (22-Fig. 118). Back off "T" bolt
nuts until pivot pin retainer pins (21),
early style clutch, can
pivot pins (20). Do not attempt to dr ive
retaining pins completely out of cover.
On late style clutches, remove retaining
clips from release lever pivot pins. On all
models, remove p1vot pins and lever
springs. Disconnect release levers (17)
from links (4 ). Loose n
ly to release spring pressure, then
"T"
remove bolts and separate clutch
components.
Thoroughly clean and examine all
parts for wea1· or damage. Renew any
parts which are questionable. Flywheel
friction surface may be resurfaced up to
a maximum depth of 1.0 mm (0.040
inch). An equal amount of material must
also be removed from clutch mounting
surface of flywheel to maintain correct
clutch spring tension. It is not permissi­
ble to resurface pressure plates (7 and
14) or dnve plate !12). Insulating
washen; should be
(9)
springs OOl are mstalled.
20
16 15
'
19 A<IJu•tonR "'"
"
20 Povot pon
marks.
if
m
·
necessary,
as
so
parts can
driven free of
be
"T"
bolt nuts even­
renewed when new
6
21
RetAtnt•r pin
22. T o noon
oprtn�