Operation No. 12 - Inspection Of Tightness Of Wheels And Drawbar Nuts And Bolt Connections - PRONAR T740 Manual

Annual inspection of system does not relieve user of daily inspection of technical condition of
lighting system.
5.2.12 OPERATION NO. 12 - INSPECTION OF TIGHTNESS OF WHEELS AND
DRAWBAR NUTS AND BOLT CONNECTIONS
FIGURE 5.5
(1) - (10) sequence of nut tightening, (L) spanner length, (F) user weight
Inspection of wheel axle and drawbar eye tightening:
•
•
Wheel nuts should be tightened using a torque of 450 Nm. Inspection of tightness should be
carried out each time after first use, and then every 50 – 100 kilometres of travel. Nuts should
be tightened gradually diagonally, using a torque spanner. If a torque spanner is not
available, one may use an ordinary spanner. The arm of the spanner selected according to
the weight of the person tightening the nut. Remember that this method of tightening is not as
accurate as the use of a torque spanner.
TIGHTENING WHEELS NUTS
after first use (without loading),
every 50 – 100 kilometres of travel.
5.16