Hitachi ZW 370-6 Operator's Manual page 390

Radial tire
Size
Front
471~490 kPa (4.8~5.0
29.5 R25
kgf/cm ) (68~71 PSI)
2
Bias ply tire
Size Pattern
520~539 kPa
L-3
29.5-25-
(5.3~5.5 kgf/cm
28PR
L-5
(75~78 PSI)
Adjust air pressure according to the job site conditions.
Adjust tire pressure in conformity with the work mode the
machine is engaged in.
Tire Sizes to be Used
Consult your nearest authorized dealer or tire manufacturer
for more detailed information.
Driving on Public Roads: Standard Pressure
 Loading/excavation on normal ground surface: Standard
or slightly higher than standard pressure
 Heavy-duty excavation: Higher pressure in the standard
pressure range
 Operation on soft or sandy terrain: Slightly lower than
standard pressure
f
NOTE: Apply the same air pressure to snow tires.
For tires with other patterns, or special operating conditions
consult the tire manufacture.
For liquid tire ballast consult your authorized dealer or the
tire dealer.
MAINTENANCE
Air pressure
Rear
373~392 kPa (3.8~4.0
kgf/cm ) (54~57 PSI)
2
Air pressure
Front Rear
422~441 kPa
) (4.3~4.5 kgf/cm
2
(61~64 PSI)
)
2
7-96