Yanmar YM240 - Page 50

48 Operating rhe tractor
(3) Tire inflation
Check tires daily for damage or noticeably low
pressure.
At least every
50 hours of operation, check infla-
tion pressure with a gauge. Use an accurate gauge
having
0.1 kg/cm2 (1 psi) graduations.
If tires contain liquid ballast, use a special air-water
gauge and measure with valve stem
at bottom.
Properly inflated tires are important to the opera-
tion
of your tractor. The amount of air pressure
to be carried in the front and rear tires depends
upon the implement used with
the tractor and the
amount of ballast.
24051
Keep the tires inflated according to the recom
mendations shown in the charts.
WheelIRim position Tread Width
1000
rnm (39.4 in.)
1100 mm (43.3 in.)
1200 rnm (47.2 in.)
A CAUTION
Support tractor securely on stands before removing
a rim or wheel.
After adjustment of tread has been completed
tighten inner attaching bolts (disk to axle) to
31 kg-m (227 ft-lbs) torque for
M16-llT bolt and
to 20 kg-m (147 ft-lbs) torque for M16-7T bolt.
The outer attaching
boltslnuts must be tightened
to
20 kg-m (147 ft-lbs) torque.
~inimum pressure may be used only for light loads
and only if tractor has no added weight. If you
install ballast or mounted implements, or if you
pull heavy loads, increase pressure.
INFLATION CHART
Front Tires
Tire
Size
4.00-12
4.00-15
5.00-15
5-14
6-14
20~8.00-10
23~8.50-12
27~8.50-15
ply
Rating
4
4
4
4
4
4
2
2
Inflation Pressure
MIN
kg/cm2 (psi)
1.8
(26)
1.8 (261
1.2 (181
1.8 (26)
1.2 (181
0.7 (10)
0.7 (101
0.7 (10)
Rear Tires
MAX
kg/cm2 (psi)
3.25 (46)
3.25 (461
2.60 (371
2.20 (31 I
2.00 (29)
1.70 (24)
0.70 (101
0.70 (101
Tire
Size
8.318-24
9.519-24
11.2110-24
13.6-16
1
1.211 0-24
ply
Rating
4
4
4
4
4
Inflation Pressure
MIN
kg/cm2 (psi)
0.8 (12)
0.8 (121
0.8 (12)
0.8 (121
0.8 (121
MAX
kg/cm2 (psi)
1.6 (23)
1.2 (181
1.2 (18)
1.0 114)
1.2 (181