PRONAR T680, Operator'S Manual

Page: 96 / 147

Pronar T680 SECTION 4
4.26
4.7 PROPER USE AND MAINTENANCE OF TYRES
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When working on the tyres, chocks or other objects without sharp edges should
be placed under the wheels of the trailer to prevent it from rolling. Wheels can be
taken off the trailer axle only when the trailer is not loaded.
•
Repair work on the wheels or tyres should be carried out by persons trained and
entitled to do so. This work should be carried out using appropriate tools.
•
Inspect tightness of wheel nuts after the first use of the trailer, every 2 - 3 hours
during first month of work and then every 30 hours of use (travel). The inspection
should be repeated individually if a wheel has been removed from the wheel axle.
Wheel nuts should be tightened according to recommendations provided in
section 5 MAINTENANCE.
•
Regularly check and maintain correct air pressure in tyres according to Operator's
Manual (especially if trailer is not used for a longer period).
•
Air pressure in tyres should be also checked during the whole day of intensive
work. Please note that higher temperatures could raise tyre pressure by as much
as 1 bar. At high temperatures and pressure, reduce load or speed.
•
Do not release air from warm tyres to adjust the pressure or the tyres will be
underinflated when temperatures return to normal.
•
valves should be protected with caps to avoid soiling.
•
Do not exceed the trailer's maximum design speed.
•
When the trommel screen is operated all day, stop working for a minimum of one
hour in the afternoon.
•
Take a 30 minute-break for cooling tyres after driving 75 km or after 150 minutes
of continuous travel, depending on which occurs first.
•
Avoid potholes, sudden manoeuvres or high speeds when turning.