Axle System Maintenance Table

Suspension Lock Cylinder Bleeding

Every 100 Hours or Once a Month

1. Set the crane in the traveling configuration on level ground.

2. Keep the starter switch to OFF, open the door of the inside-cab relay box, and disconnect the on/off connector.

5. After air-bleeding is over, fasten the bleeder screw and remove the hose.

6. Turn off the starter switch and connect the on/off connector in the inside-cab relay box.

3. Start the engine, turn the PTO switch on, and raise the engine speed to approx. 2,150 rpm.

4. Attach a hose to the bleeder screw �. And loosen the bleeder screw. In this condition, bleed air for approx. one minute.

◆ Bleed air in the order of bleeder screws, , , and

7. Turn on the starter switch. Turn the PTO switch on. Make sure then the suspension lock indicator lamp lights.

Tires and Wheels

Warning

Tires replaced and remounted in an improper way may burst, causing serious injury or death. Have specially trained tire technicians or the nearest TADANO dealer or distributor replace or remount the tires.

Warning

Using tires that are ripped or damaged or whose treads are worn out is dangerous and may cause the tires to skid, go flat or blow out. If a wear check reveals that the tire has reached its wear limit, replace it with a new tire.

Check the following points:

(1) Are there any rips or damage on the tire tread or side walls?

(2) Is there excessive wear of the tire tread?

(3) Have the treads reached their wear limit?

◆ The amount of wear or damage that a tire can tolerate depends on the tire manufacture. Contact the nearest TADANO distributor or dealer for detailed information.

◆ As the number of traveled kilometers increases, tires may start to wear unevenly. Periodically rotate the tires so that they wear evenly.

1. Slightly loosen the wheel lug nuts with the tires in contact with the ground.

2. Extend the outriggers to raise the tires off the ground.

3. Remove the wheel lug nuts to remove the tire.

4. Thoroughly clean the threads of the wheel lug nuts and wheel bolts and the wheel mounting surface. Dirt on the nuts may cause them to loosen.

◆ Replace the wheel lug nuts and wheel bolts whose threads are damaged. Also replace deformed or cracked wheels.

5. Mount the tires with the wheel bolts aligned to the wheel bolt holes.

◆ When performing tire rotation, change the tire positions as shown.

Loose Wheel Lug Nut Check

Every 250 Hours or Every 3 Months

Loose wheel lug nuts or wheel lug nuts tightened beyond the specified torque can be extremely dangerous because the wheel bolts can experience fatigue failure(s). If more than one or two bolts break the entire wheel can come off while the crane is traveling. Periodically check for loose wheel lug nuts. Re-tighten if a loose wheel nut is found.

6. Apply light weight grease to the spherical areas of the wheel nuts and the threaded sections of the bolts.

7. Loosely tighten the wheel lug nuts.

8. Stow the outriggers and lower the tires to the ground gently.

9. Tighten the wheel lug nuts to the specified tightening torque.

◆ Tighten the wheel lug nuts diagonally as shown.

Check for loose wheel nuts. Re-tighten if a loose wheel nut is found.

10. After replacing tires, check for loose wheel lug nuts after approximately 30 miles (50 km) travel. Re-tighten if a loose nut is found.