Paragraphs
1 0·1 1
(14). Remove snap ring (3), then bump
shaft(5) and bearing(4) out front
of
hous
ing bore.
Inspect all parts for scoring, wea1· or
other damage and renew if necessary.
Always renew all
"0"
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 bear
i
n
gs
(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
shaft and gear assembly (11, 12, 13 and
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
(8-10 ft.-lbs.)
torque.
Use
care
when assembling relief valve (21, 22, 23,
24 and
25).
Install the adjusting plug (24)
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
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
2 Spa"'r
3 Snap nng
4.
Beanns
6 Shaft
6
Woodruff keya
7 S..ol
8.
IIOUIJnl(
1 0
9 N....Ue beanngs
10 Dnvosear
II On ven gear
12 R
o
nga
13 Idler aha/\
14 Pm
16 Guket
16
Folt.er
17 Body
18 Dowel ptn
19 Gasket
21 Reher plun�:er
22
Sprmgs
23.
"0"
rong
24. Reher adjusting plug
26. "0" nnga
26. "0" nnr
27.
Reaervoor
29
Cover
30. Stud
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
(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
toward
rear
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
over key
.
Install the idler shaft and geru·
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
·
m (8-10 ft ..
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
Models MF230-MF235-MF245
The steering gear assembly includes
the
power
steering control valve, power
assist piston and cylinder as well as
steering shaft, rack
,
and pitman shafts
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
