MacDon 9250 SP - Manual (Page 138)

Form # 46584 Issue 11/06 Web Rev_01 136
REAR CASTER INSTALLATION: 9.5 TIRES
ON XX50/XX40 TRACTORS
ASSEMBLY
Install Tires
9.5 REAR TIRES on XX50/XX40 Model Tractors:
(Forked or Formed Casters)
1. Lift rear end of windrower with forklift and
remove yellow shipping support from walking
beam (see B on page 135). Replace bolts
securing walking beam pivot tube bracket and
torque to 390 N
⋅m (290 ft.lbs.).
2. Install casters in rear beam as shown.
NOTE: When installing rear casters, ensure that
smaller I.D. race of thrust bearing (A) is towards
caster.
3. Place rear casters in the outboard position
(extending behind rear beam) and lower rear of
windrower to ground.
4. Set caster tire pressure at 10 psi (70 kPa).
16.5, 11-16 or 7.5 REAR TIRES on Model 9352,
4952, 2952, 8152 Tractors
1. Lift rear end of windrower with forklift and
remove yellow shipping support from walking
beam (see B on page 135). Replace bolts
securing walking beam pivot tube bracket and
torque to 390 N
⋅m (290 ft.lbs.).
2. Liberally apply multi-purpose grease to bottom
surface of spring assembly (C). Install
assembly (C) over caster pivot shaft.
3. Place one bushing (D), flared edge down, onto
caster pivot shaft
4. Install caster (E) into walking beam by raising
the caster and lowering walking beam onto
pivot shaft. NOTE: Ensure tabs (J) on spring
assembly engage slots in bottom of walking
beam.
NOTE: For 7.5 formed casters, elbow of caster
should be to the outside.
5. Place a second bushing (F), flared edge up,
into walking beam.
6. Place cap (G) on top of assembly and secure
with two 1/2 x 1 inch hex head bolts, and lock-
washers, ensuring bolts engage threaded holes
in top of caster pivot shaft. Tighten bolts to 75
ft. lbs. (102 N·m).
7. Place transport lock pin (H) into storage
position and secure with hairpin.
8. Repeat steps 2 to 7 at other caster.
9. Grease the caster pivots with multi-purpose
grease, continuing until grease is forced out top
of walking beam.
10. Place rear casters in the outboard position
(extending behind walking beam) and lower
windrower to ground.
11. Set caster tire pressure at 10 psi (70 kPa) for
16.5 or 11-16 tires and 19 psi (132 kPa) for 7.5
tire.
NOTE: For 16.5 and 11-16 rear tires, factory
set pressures are higher than recommended
operating pressure. Deflate to 10 psi (70 kPa).
REAR CASTER INSTALLATION
ON 9352/4952/2952/8152 TRACTORS
C
D
E
F
G
H
H
J