Hitachi ZW 550-6, Operator'S Manual

Page: 380 / 438

MAINTENANCE
7-96
Radial tire
Size
Air pressure
Front Rear
35/65R33
471~490 kPa (4.8~5.0
kgf/cm
2
) (68~71 PSI)
373~392 kPa (3.8~4.0
kgf/cm
2
) (54~57 PSI)
Bias ply tire
Size Pattern
Air pressure
Front Rear
29.5-29-
28PR
L4
L5
520~539 kPa
(5.3~5.5 kgf/cm
2
)
(75~78 PSI)
422~441 kPa
(4.3~4.5 kgf/cm
2
)
(61~64 PSI)
35/65-33-
24PR
L4
L5
422~441 kPa
(4.3~4.5 kgf/cm
2
)
(61~64 PSI)
324~343 kPa
(3.3~3.5 kgf/cm
2
)
(47~50 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.