PRONAR PT510, Operator'S Manual

Page: 101 / 133

SECTION 5 Pronar PT510
5.9
an ordinary spanner. The arm of the spanner (L), figure (5.3), should be selected according
to the weight of the person (F) tightening the nut. Remember that this method of tightening is
not as accurate as the use of a torque spanner.
Check the wheel nut tightening:
•
after first use,
•
after first travel with load,
•
after travelling the first 1,000 km,
•
every six months use or every 25,000 km.
In the event of intensive work check the nut tightening at least every 10,000 km. The
above actions should be repeated individually if a wheel has been removed from the
wheel axle.
TABLE 5.1
Spanner arm
WHEEL TIGHTENING TORQUE BODY WEIGHT (F) ARM LENGTH (L)
[Nm] [kg] [m]
90 0.30
77 0.35
67 0.40
270
60 0.45
5.2.6 CHECKING AIR PRESSURE IN TYRES, EVALUATING TECHNICAL
CONDITION OF TYRES AND STEEL WHEELS
TIP
Tyre pressure values are specified in information decal, placed on wheel or on upper
frame above trailer wheel.
Air pressure in tyres should be checked each time after changing a spare wheel and at least
once a month. In the event of intensive use, air pressure in tyres should be checked more
frequently. During this time, the trailer must be unloaded. Checking should be done before
travelling when tyres are not heated, or after an extended period of parking.