Komatsu AX20 Operation & Maintenance Manual page 52

14. INSPECTION AND MAINTENANCE
• If the tire inflation pressure is low, it will affect truck stability. However,
do not inflate the tires immediately. The inflation pressure may have
gone down because of damage to the rim. If the rim is damaged or
cracked and the tires are inflated, there is danger that the rim will break
when the tire is under high pressure, and this may cause personal injury
or death.
• For safety, when checking tire pressure, place your body in front of the
tread face of the tire. Do not check from the side face of the tire.
• Suitable qualifications are needed for tire inflation work on a lift truck. It
is not like an automobile. Always have the work carried out by properly
qualified personnel.
• The tire inflation pressure on a forklift truck is several times higher than
the pressure on an automobile. When the tires are being inflated, there is danger that dirt or dust may be
thrown up by the compressed air and enter your eyes. Always wear safety glasses to protect your eyes.
• Disassembly and assembly of tires should be carried out by a tire dealer.
• The tire pressure is extremely high, so caution is needed when handling tires.
• The wheel is fitted with mounting (lug) nuts. It also has rim nuts and bolts used to join the rim halves.
When removing the tire from the lift truck, do not loosen the rim nuts and bolts. The tire is under high
pressure, and there is a significant risk that the rim nuts and bolts may fly off. Relieve tire inflation pressure
before removing.
• When the tires have been replaced, carry out a test drive and check again for any loose mounting bolts. If
the tightening torque is low, tighten to the specified torque.
• Do not go under the fork lift truck when it is jacked up. Check the
following before jacking up the lift truck. (For details, see "REPLACING
TIRES" on page 4-32.)
1. Check that there is no one on the lift truck.
2. Check that there is no load on the forks.
• When jacking up, stop when the tires come off the ground surface. Put
blocks under both sides of the frame to prevent the lift truck from
coming down.
• Put blocks under any tires contacting the ground to prevent the lift truck
from moving.
Never place any metal objects on top of the battery. There is danger that they will cause a short circuit and
start a fire.
2-24
CHECKING AND INFLATING TIRES
HANDLING TIRES
JACKING UP LIFT TRUCK (when checking or replacing tires)
DO NOT PUT METAL OBJECTS ON TOP OF BATTERY