MASSEY FERGUSON MF230 Shop Manual page 9

1 0 ·1 1
Paragraphs
(14). Remove snap ring (3), then bump
shaft(5) and bearing(4) out front
ing bore.
Inspect all parts for scoring, wea1· or
other damage and renew if necessary.
"0"
Always renew all rings, gaskets and
oil seal.
Install new oil seal (7) with lip facing
inward and front of seal flush with outer
surface of housing. When renewing nee·
dle bearings (9), press against numbered
side of bearing. Bearings should be
slightly below flush with machined sur·
face of housing. Press bearing (4) onto
shaft (5), then install the shaft and bear·
ing in bore of housing (8). Install snap
ring (3), spacer (2), key (6) and gear (1),
then install retaining nut. Install the
other key (6) in shaft and slide gear (10)
onto key (6) in shaft and slide gear (10)
onto shaft over the key. Install the idler
Fig. 11-Exploded view of power steering pump used on Models MF230, MF235 and MF245 equipped
with gasoline engine. Inset shows location of pressure line {P) and return line (R).
I Gear
9 N....Ue beanngs
2 Spa"'r
10 Dnvosear
3 Snap nng II On ven gear
4. Beanns
12 R
6 Shaft
13 Idler aha/\
6 Woodruff keya
14 Pm
7 S..ol 16 Guket
IIOUIJnl(
8. 16 Folt.er
1 0
shaft and gear assembly (11, 12, 13 and
of
hous­ 14). Position thin gasket (15) around
gears and locate body (17 ) over gears be ·
ing careful not to damage the gasket. In­
stall the thicker gasket (19) and plate
(20) and tighten the assembly screws to
11-14
N • m
when assembling relief valve (21, 22, 23,
25).
24 and
as near as possible to position from
which it was removed. Reinstall pump
and check relief pressure as outlined in
paragraph 7.
Gasoline Models
10. OVERHAUL. Remove reservoir
cover (29-Fig. 11), filter (16), stud (30)
and screw (31), then lift off reservoir (27).
Establish the setting of the relief valve
plug (24) before removing plug. Remove
22
"0"
17 Body
18 Dowel ptn
o 19 Gasket
nga
21 Reher plun�:er
Sprmgs
23.
24. Reher adjusting plug
torque.
(8-10 ft.-lbs.)
Use
Install the adjusting plug (24)
26. "0" nnga
26. "0" nnr
27. Reaervoor
29 Cover
30. Stud
rong
31. Serew
MASSEY -FERGUSON
screws attaching body (17) to the hous­
ing (8) and remove body. Remove gears
(10 and 11), Woodruff key (6), idler shaft
care
(13) and pin (14). Remove nut, gear (1),
sleeve (2) and snap ring (3), then bump
shaft (5) and bearing (4) out front of
housing.
Install new seal (7) with lip
of pump and front of seal flush with the
step in front of housing bore. Press new
bearings (9) into bores in body (17) and
housing (8) until bearing is just below
Oush. Press only on numbered side of
bearing which should be toward gears
(10 and 11 ) . Press bearing (4) onto shaft
(5), then install the shaft and bearing in
bore of housing (8). Install snap ring (3),
spacer (2), key (6) and gear (1), then in­
stall retaining nut. Install other key (6)
in shaft and slide gear (10) onto shaft
Install the idler shaft and geru ·
over key.
assembly (11, 12, 13 and 14). Position
gasket (15) around gears and locate body
(17) over gears being careful not. to
damage gasket. Install and tighten
assembly screws to 11-14 N
lbs.) torque. Install relief valve (21, 22,
23 and 24). Install plug (24) as near as
possible to original location to facilitate
relief setting. Reinstall pump and check
relief valve pressw·e setting as outlined
in paragraph 7.
STEERING GEAR AND
CONTROL VALVE
power
Models MF230-MF235-MF245
The steering gear assembly includes
the steering control valve, power
assist piston and cylinder as well as
steering shaft, rack
necessary for manual steering.
11. REMOVE AND REINSTALL.
To remove the power steering gear, first
remove the battery and the steering
wheel. Disconnect the oil pressure line
at gage and tachometer cable at both
ends, then remove the tachometer cable
and cable housing. Mark all wires to
facilitate reassembly, then disconnect all
wires from instrument panel gages.
Remove lights from panel gages and
disconnect fuel shut-off from injection
pump (diesel models). Remove the com­
plete instrument panel with gages.
Disconnect wires from starter switch
and light switch, then unbolt. and
remove the rear hood assembly with
starter and light switches installed.
Disconnect linkage from both ends of the
throttle cross shaft, then slide shaft from
left side of tractor. Remove the complete
air cleaner assembly and the battery
platform. Clean the area thoroughly
before disconnecting any power steering
lines. Disconnect hydraulic lines and
plug all openings to prevent entrance of
toward
rear
· m (8-10 ft ..
, and pitman shafts