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Pronar T400
you can use a regular key. The key arm (L), figure (5.3) should be selected according to the
weight of the operator (F) tightening the nut. It should be kept in mind that this method of
tightening is not as accurate as when using a torque wrench.
ATTENTION
Wheel nuts must not be tightened with impact wrenches, due to the danger of exceeding
the permissible tightening torque, which may result in breaking the thread of the
connection or breaking the hub pin.
The highest tightening accuracy is obtained with a torque wrench. Before starting work,
make sure that the correct torque value is set.
Figure 5.3
Nuts tightening order
(1) - (6) nuts tightening order, (L) key length, (F) operators' weight
Table 5.1
Choice of the key length
5.8
CHAPTER 5
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