MASSEY FERGUSON MF230 Shop Manual page 82

SERVICE MANUAL
cover and linkage. Lift arms (23 and
28-Fig. 210), rockshaft
rockshaft c:m
all have master splines for
correct assembly. Rockshaft bushings
(25) are slip fit in cover bores.
To disassemble, loosen set screw
(5-Fig. 209) and remove adjusting nut
(13), then withdraw master control
spring (12) assembly and disc
43
34 37 32 29
I
Fig. 212-Erploded view of control quadrants. In·
sal 1h0w1 parts for pressure control models.
8. Draft control
N Specoal nut.e
S Saewa 9 Draft control
Draft
control ohaft
10 Poe1toon
2 Poe1110n control ohal\ 11 PO&IIlon control
3 Support quadrant
I.
cover.
D. Oipatoek
Control cover
2. Reoponat h6ndlc
S.
Block
On pressure control models, remove
arm (26) and lever (50-Fig. 214). On all models,
loosen the position adjusting screw
(36-Fig. 215), then remove spring (38).
Thread a screw into quadrant retaining
pin (P), then pull or pry pin out of lift
cover. Hold draft and position control
fingers away from quadrant cams, then
(7).
withdraw quadrant assembly from
Fig. 214-VIew of control
llnlcll g e lnstelled In lift cover.
Pressure control model Is
P P ovot pon
29 Nut
32. Vertocal lever
34 Sprongs
36
Poottton aclj usto ng
50 Press ure
quadrant
l•••r
control lf>·tr
AdjustJng IO"eW
Fig. 215-VIew of position
37 Poa1llon conuol
control linkage. Pin (P)
telns control quadrant In lift
36
38
Spnng
39 Poo1 t 1on control
4 S o
de cover
in
S S pr g
s. Shan
Response com
7
draullc lift llnlcaga located on
Fig. 211-0rawlng of hy·
Inside of lift cover. Inset
shows parts that 11re used for
pressure control models.
P P,vot
ohaft
..
Set ocre
S
29 Nut
SO Bracket
31 P 1vot brackot
32. Vertical lever
33 Serow
34. Sprm(l'l
36. Cam roll�r
36.
Poaiuon ad.Ju•t•nN •crew
37 Poo i uon contnol finNcr
38.
Sprons
39.
Pos1uon control ra m
co
com
40 Oral\ nt ro l
41 Sprong
Draft
42 control rod
4 3 S�p ICI"f ..
50 L1nk
Block au�
51
shown.
ICI"<!W
control lever
r•
cover.
finger
cam
Paragraph
cover.
R�move right-hand lift arm, then
withdraw rockshaft 127-Fig.
left-hand lift arm from cover. &move
"0"
r ings 124> and bushmgs
cover.
Insert cotter pins through drilled holel:i
in cam spnng guide rods to hold springs
(34-Fig. 214) in compressed position.
&move nut (29) r etaining pivot bracket,
then remove vert1cal lever (32) with
fingers and pivot bracket as a unit.
Remove fitttng at left-hand side of lift
cover and lool:ien �et sere" IS-Fig. 216)
retaining cam pivot shaft <P>. Withdraw
the pivot shaft and remove position con
trol and draft control cams 39 and
40-Fig. 2 1 1 )
Remove rockshafl arm <26-Fig. 210)
l.
and piston rod (21 Remove piston !20)
from cylinder 117) and unbolt and
remove cylinder from cover if necessary.
When reassembling, tight.en lift
cylinder retaimng nutl:i to 160 N · m C120
ft .. Jbs.l torque. Stagger end gaps of
piston nngs09-Fig. 2l0l when mstall·
ing piston. Grooved end of rod (21)
tained m rockshaft arm (26) by a set
screw. Coat threadl:i of set screw with
Loctite 262, turn set screw in until 1t bot·
toms, then back tt out 1/8 turn. Position
rockshaft arm with rod into cover.
2 1 7
Cont.
210) with
(25)
from lift.
1s re·
83