MAINTENANCE AND S ERVICING
Check tire pressure every year. Caster tire pressure should be 10 psi (69 kPa).
To maintain pressure, visually check daily that tires have not lost pressure, and adjust pressure as needed.
Under-inflation of tires can cause sidewall cracks.
NOTE:
If caster wheels shimmy, a possible cause is ov er-inflation.
Table 5.5 Cas
ter Tire Options
Formed Caster Forked Caster
7.5–16SL Single Rib, 10-16 Front Steer Tire
16.5L–16.1 Rib Implement Flotation, 10–16
Front Steer Tire
10 psi (69 kPa) 10 psi (69 kPa)
Tightenin
g Caster Wheel Nuts
At first use or when a wheel is removed, check wheel nut/bolt torque every 15 minutes on the road or 1 hour in the
fielduntilthespecified torque is maintain ed.
Once specified torque is maintained, check wheel nut/bolt torque after 10 and 50 hours (field or road operation) and
then every 200 hour intervals thereafter.
To tigh ten the caster wheel nuts on eit her forked or formed
caster wheels , follow these s teps:
1. Position wheel assembly on hub and install wheel
bolts (A).
2. Tighten wheel nuts (A) to 120 ft·lbf ( 163 N·m) using
the tightening sequence s uitable for the type of caster
wheel shown at right. Repeat the tightening sequence
three times.
Figure 5 .213: Forked Caster Wheel
Tightening Sequence
147649 419 Revision A
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