Meyer Manufacturing Corporation
- 36 -
PB-FATBOY
8.3 SUSPENSION TORQUE REQUIREMENTS
After an initial break in period approximately four months and periodically thereafter,
ALL
bolts and nuts should be
checked to insure that recommended torque values are being maintained.
8.4 WHEEL TORQUE REQUIREMENTS
8.5 FARM IMPLEMENT TIRES
Inflation pressures should be checked at least every week. Recommended inflation pressures based on total load on tires
should be used. For accurate inflation use a special low-pressure gauge with one-pound gradations. Gauges should be
checked occasionally for accuracy. Always use sealing valve caps to prevent loss of air.
Tire Overload or Under Inflation
Tire overload or under inflation have the same effect of over-deflecting the tire. Under such conditions the tread on the tire
will wear rapidly and unevenly, particularly in the shoulder area. Radial cracking in the upper sidewall area will be a
problem. With under inflated drive tires in high torque applications sidewall buckles will develop leading to carcass breaks
in the sidewall. While an under inflated drive tire may pull better in some soil conditions, this is not generally true and not
worth the high risk of tire damage that such an operation invites.
Over Inflation
Over inflation results in an under-deflected tire carcass. The tread is more rounded, concentrates tread wear at the
centerline area. Traction is reduced in high torque service because ground contact of the tread shoulder area is reduced
and the harder carcass, with reduced flexing characteristics, does not work as efficiently. The tightly stretched over-
inflated carcass is more subject to weather checking and impact break damage.
Pressure Adjustments Required - Slow Speed Operation
Higher tire loads are approved for intermittent service operations at reduced speed. Under such conditions, inflation
pressure must be increased to reduce tire deflection and assure full tire service life. See Page 37 for proper inflation.
BOLT/STUD SIZE
SOCKET SIZE
PRESS FORMED
WHEEL CENTER
BOLT TYPE
HEAVY DUTY
WHEEL CENTER
22MM
30MM
N/A
Flange Nut
450-510
Nm
The PB-ADR-B manual should be used in conjunction with this
manual.
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