MASSEY FERGUSON MF230 Shop Manual page 77

as lh
204 - 207
Paragraphs
just described turn at a time until
pressure fluctuation is eliminated.
If maximum system pressure is not
within specified range of 17240-17930
kPa (2500-2600 psi), adjust maximum
pressure setting as f ollows: Place inner
lever fully down on quadrant. Remove
rear cap screw from transfer cover
lh
(3-Fig. 189) and use
through bolt hole in cover to turn
pressure adjusting screw as necessary.
Each turn of screw will change
pressure approximately 350-700 kPa
(50-100 psi). Reinstall transfer cover re·
taining cap screw and recheck for cor·
rect pressure.
to lift
204. TRANSPORT STOP. To adjust
transport stop (3-Fig. 186 or 188) run
engine at idle speed. With implement or
weights attached links, move draft
"UP"
control lever to fully
On mv<lels without pressure control,
move inner quadrant lever past
transport stop to "CONSTANT PUMP­
ING." Scribe lines {L- Fig. 188) across
lift arm and lift cover casting. Move in·
I Relpvn
Fig. 190-VIew of response control side cover with
outer cover removed.
control lever
2 ln""r pl•le
lift
lift
Fig. 191-Remove roller from top of control valve
(2)
lever before removing cover, and be ture
vertical lever (1) Is located to rear of valve lever
when reinstalling
78
ner lever downward on quadrant
towards the transport stop until the
scribed lines
{118-5/32 inch). Ad just the transport stop
to hold the inner lever at this point.
necessary, the quadrant retaining bolts
can be loosened and inner quadrant
moved for additional adjustment.
a screwdriver On pressure control models, move in­
ner quadrant lever to "CONSTANT
PUMPING" on pressure side of
transport stop. Scr ibe a line across lift
arm and lift casting (similar to L-Fig.
188), then move inner lever to "POSI­
TION" side of transport stop. Measure
the distance that scribed lines are
separated.
range of 3.2·3.9 mm (l/8-5/32 inch),
loosen cap screws secur
move inner quadrant only to obtain cor·
rect setting.
position.
205. DRAFT CONTROL. To adjust
draft. control, disconnect the top link, but
leave implement or weights attached to
lower links. Run engine at low speed,
place
"TRANSPORT" and move draft control
lever downward on quadrant until
I.
Fig. 192-Exploded view of hydraulic lift cover, muter control 1prlng, rockshlft, lift cylinder
Bu.llun1
2A CleVla head
28. Pl•m h•ad
3 Rubber
4 Acljuatmg nul
6 Muter control
cover.
1prmg
-
are separated 3 .2 3 .9
If
separation is not within
ing quadrant and
inner quadrant lever
...
t
6 Sprtnc
7 Plunatr
8 Overload 1rtop
boo l
9 Sel ac:r•"
10 Nylon plug
I I Loc k clip
MASSEY -FERGUSON
weight just begins to fall. Position draft
control lever in quadrant where weight
remains suspended in midposition and
mm
draft
note location of
If
within 6.4 mm (1/4 inch) of sector marks
{M-Fig. 186 or 188), loosen screws
(5-Fig. 188) securing draft indicating
quadrant. Move draft quadrant while
holding draft lever until sector marks
align with lever. Be careful not to move
inner quadrant indicator while making
this adjustment.
206. RESPONSE CONTROL. To ad­
just response control, first remove outer
cover from response control side cover.
Place response lever (1-Fig. 190) 6.4
mm (1/4 inch) from "SLOW" position,
then loosen retaining screw
ner plate (2) until
"slide" valve lever (located inside hous­
ing on pump). Tighten r
to secure the adjustment.
LIFT COVER
Models With Oashpot Mounted
at
on Cover
207. REMOVE AND REINSTALL.
To remove hydraulic lift cover, first
remove seat and seat frame. Disconnect
upper lift links from lift arms and
remove center link. On models
ped, remove control beam from control
spring head (2B-Fig. 192). On all
partS.
ISSOC/ated
12 Wuhor
13 L1f\ •rm. R H
rma
14 "0"
16 Buahln11
16 Rockohal\
17 Llf\ cover
If is
lever. lever not
cam
(3). Move in·
block contacts the
a
n n
et i i g screw
so
equip·
<!' 24
1nd
23
18. Llll ann . R II
19 R.odu•haf\ arm
20 P 1111.0 n rod
21
PllllOn
22 Plllon r1 n1111
23 Llf\
cylondor
24. "0" nng