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9 Driving safely (0099-0227-0E)

In document 214521_SR-300L IM(E) (Page 69-75)

In addition to the precautions listed below, always drive safely and carefully, observing basic precautions and driving etiquette.

(1) Do not keep anything other than the standard equipment on the body of the machine when driving on the roads.

Additional objects on the machine could cause accidents or damage, so keep to the standard driving position and equipment.

(2) Set the "PTO switch" to the "OFF" position and return the machine to the driving position before driving on the roads. Never operate the crane in any way when driving on the roads.

(3) Precaution for rear steering

Always keep the rear steering locked and use only front two- wheel steering when driving on the roads.

If the rear steering lock is released, the rear steering lock release lamp will light.

(4) Observe the conditions for road driving

Before driving on the roads, check the preconditions for allowing a crane to drive on the road in the country concerned.

(5) Do not allow extra passengers on the machine

Never allow more people in the cab while driving than the number described in the machine specifications.

Driving with excess people in the machine can cause accidents.

(6) Keep the working lamps off when driving on the roads

Keep all working lamps and other lamps on the crane switched off when driving on the roads at night. Use of these lamps disturbs other drivers, and it may be forbidden by law. Follow the relevant safety regulations and laws in the country of use.

(7) Coasting with the engine turned off is hazardous and should never be attempted.

If the engine is switched off, the steering will be inoperable and the compressed air tank will not be charged with air, which can disable the brakes dangerously.

(8) Sudden acceleration, braking and cornering should be avoided unless required in an emergency.

(9) Pay attention to road surface conditions

Drive slowly and cautiously for maximum safety on snow- covered or icy roads, irregular road surfaces, inclined ground, roads sloping up and down etc.

Check the road surface before you drive over it, and if necessary, fit tire chains or improve the road surface.

(10) Have another worker guide you through narrow openings or place with poor visibility.

This guidance will help to avoid scrapes or impacts with obstacles, people or machines etc.

(11) Take care around train power cables and bridge spans

When driving, pay close attention to the distance from the machine in front, machine height and width and distance to any obstacles.

In particular, check the height and width of the opening in advance when driving under power cables or bridges.

(12) Allow adequate distance for stopping

Allow adequate distance for stopping so that the front of the machine (i.e. the boom top) does not cross over stop lines.

(13) Steering control

This machine is equipped with fully hydraulic power steering. This makes the steering wheel lighter to turn, but means that it

does not return to the center when released. After turning the steering wheel to either side, return it to the center position by hand. Do not keep the steering wheel at either full lock for long periods.

(14) Brake operation

1) Check that air pressure is normal, then release the parking brake.

If you try to release the parking brake when the compressed air pressure is below the rated pressure, the buzzer will sound to warn of inadequate air pressure.

In this case, it will not be possible to release the parking brake.

2) Make a habit of depressing the foot brake before releasing the parking brake.

If you try to move the machine while the parking brake is applied, the parking brake will become scorched rapidly and the braking force will be lost.

If you move the shift lever to any position other than "N" while the parking brake is applied, the warning buzzer will sound.

3) When stopping temporarily at crossings or traffic lights etc., use the parking brake and return the shift lever to the "N" (neutral) position.

If you use the foot brake while the machine is at rest, the brake fluid will heat up.

Try to release the foot brake as much as possible to allow the brake fluid to cool.

4) While driving, keep checking the air pressure gauge which displays the air pressure for the foot brake.

Reduced air pressure leads to a large reduction in braking capacity, so close observation is required. If the low air pressure warning lamp lights and an intermittent buzzer sounds while the machine is in motion, bring the machine to rest in the nearest available safe place and inspect the air pipe system.

5) Do not drive with your foot resting on the brake pedal. Doing so could increase the brake and brake fluid temperature and result in "fading or vapor lock", which could cause an accident.

6) Braking on a downhill

Be particularly careful braking when going downhill. Excessive braking can reduce the air pressure and cause the

brakes to stop working. Reduce speed adequately by downshifting or using the exhaust brake. When downshifting, downshift one gear at a time. Downshifting 2 or 3 gears at once could damage the engine, transmission or other drive equipment.

(15) When driving into puddles, be careful to prevent water from getting on electrical systems, which could cause short circuiting or other damage that might disable control functions.

In document 214521_SR-300L IM(E) (Page 69-75)