See also:

Air filtration system
Replace the filter element according to the replacement schedule as follows. This schedule should be followed to maintain the filter’s dust collection ability. Under extremely dusty conditions ...

Maximum permissible inflation pressure
The maximum cold inflation pressure to which this tire may be inflated. For example, “300 kPa (44 PSI) MAX. PRESS” ...

Other markings
The following makings are also placed on the sidewall. Maximum permissible inflation pressure The maximum cold inflation pressure to which this tire may be inflated. For example, “350 kPa (51 PSI) ...