Kenworth T410, Driver'S Handbook Manual

Page: 272 / 418

Page 246 CAT: 8612 November 2019
PREVENTIVE MAINTENANCE
REPLACING TYRES
Front tyres should be replaced before less than 3mm of tread remains. This
does not include tie-bars or tread wear indicators. Replacement tyre and rim
sizes must conform with those listed on the ‘Tyre Placard’, which is located
in the cab (see pages 299-300).
For vehicles built after January 1
st
2005, cold inflation tyre pressure limit is
marked on tyre sidewall. Recommended laden tyre pressures are listed
on page 243.
Check tread depth in any major tread groove at three locations around the
tyre, spaced 120° apart.
Tyres on drive axles or trailer must be replaced when less than 1.5mm of
tread depth remains in any major groove, as checked at 120° locations
around tyre.
Regrooved tyres, or tyres with reinforcement repairs, should never be used
on steering axles.
MATCHING TYRES
In addition to having tyres balanced, and having their radial and lateral
run-out checked, we recommend that you have an authorised Kenworth
dealer match your tyres, particularly on the rear axles. Mismatched tyres
can cause interaxle conflict and unusually high axle lubricant temperatures.
Matched tyres will help lengthen driveline service life and mileage.