The
impact of a hammer at an angle of 150 and an angle of less than an angle of150
at the other end.
The decrease reason is
as follows
1.The sample itself has
impact resistance (impact value);
2.The friction of the
shock process, that is, the loss of wind resistance;
3.The pointer friction
of the shock machine, that is, the inertia loss.
Therefore, the impact value of the sample can be calculated by the above factor
Maintenance
1）、cleaning：Keep
the instrument clean and clean with cotton wiping instrument before and after
each test.
2）、Antirust：Check
the normal operation of the relative motion parts of the instrument and add the
lubricating oil。
Troubleshooting
|
situation |
Possible cause |
Troubleshooting |
|
l Test
value is not allowed. |
The instrument
is not put on the level
l The
weight of the hammer is inaccurate.
l The
wobble performance of the hammer is bad.
l The
slide performance of the pointer is bad. |
l Adjust
the instrument level of the base screw, put the instrument level.
l Add
lubricating oil or adjust weight.
l Replace
or repair the pointer.
l Adjust
the position of the specimen and fit the tightness. |
|
l The
hammer can not be fixed on the fixed hook. |
l Spring
elasticity of fixed hook. |
l Replace
the fixed hook part spring. |
