4.
Measure the difference k between the ruler and fork blade at the edge of the fork
tip.
5.
If the measured difference k (Fig. 14) exceeds the maximum permissible bend
kmax, immediately ban any further use of the fork arm. Commissioning must only
be carried out after a successful repair or replacement.
Personnel:
n
Service specialist
Protective equipment:
n
Protective clothing
n
Industrial hard hat
n
Protective gloves
n
Safety shoes
Special tool:
n
Ruler
Danger to life due to fork arms bent upwards!
– Check the fork arms for deformation on a regular basis.
– Never use fork arms that exceed the maximum permissible diagonal dimen-
sion.
Fork arms that are bent upwards are a sign of overloading and material fatigue.
The fork arms are delivered with an angle of 90°. If the maximum permissible
angle is exceeded, the specified nominal load capacity of the fork arms is no
longer ensured. This could (e.g., due to breakage) cause the load to fall and
result in serious accidents.
Angularity
Fork arms bent
upwards
L
WARNING
Maintenance
Checking the fork arms > Deformation of the fork arms
Fork carrier with fork arms
38
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