Hyundai 250D-9 Manual page 225

2) 2) FORKS FORKS
Problem Problem
Abrasion
Distortion
Fatigue
Cause Cause
Long-time operations causes the fork to
wear and reduces the thickness of the
fork.
Inspection for thickness is needed.
·Wear limit : Must be 90% of fork
thickness
Forks are bent out of shape by a number
of reasons such as overloading, glancing
blows against walls and objects, and
picking up load unevenly.
·Difference in fork tip height
Fork length
(mm) difference (mm)
equal or below 1500
above 1500
Fatigue failure may result from the
fatigue crack even though the stress to
fork is below the static strength of the
fork. Therefore, a daily inspection
should be done.
·Crack on the fork heel.
·Crack on the fork weldments.
9-11
If the measured value is below the
wear limit, replace fork.
If the measured value exceeds the
allowance, replace fork.
Height
3
6
Repair fork by expert.
In case of excessive distortion,
replace fork.
Remedy Remedy