66..2244 MMaasst t ssyysstteem / m / RReeppaaiir ir innssttrruuccttiioonns s / / FFoorrkkss
1.1. Straightness of the blades and shanks:Straightness of the blades and shanks:Deviations from the straightness of theDeviations from the straightness of the
carrier surface and the support surface must not exceed 0.5% of the length of thecarrier surface and the support surface must not exceed 0.5% of the length of the
blade and shank. See figureblade and shank. See figure6.286.28..
2.2.
Crack formation:Crack formation:
Check whether the Check whether the forks are cracked. Check carefully aroundforks are cracked. Check carefully around
the heel and hooks. See fthe heel and hooks. See figureigure6.286.28..
3.3. Wear:Wear:Check the forks fCheck the forks for wear, especially around the heel. The blade thicknessor wear, especially around the heel. The blade thickness
must not be thinner than 90% of tmust not be thinner than 90% of the original thickness.he original thickness.
4.4.
Fork angle:Fork angle:
The angle,The angle,α,α,between the blade and the shank must be max 93between the blade and the shank must be max 93
degrees. See figuredegrees. See figure6.286.28..
5.5.
Difference in height between the tips of the forks:Difference in height between the tips of the forks:
The difference in height, dH,The difference in height, dH,
between the tips must not exceed 3% of the between the tips must not exceed 3% of the blade length. See figureblade length. See figure6.286.28..
6.6.
Locking device:Locking device:
Check that the locking Check that the locking device works.device works.
7.7. Markings:Markings:The fork markings should be explicit and include the lifting capacity in kgThe fork markings should be explicit and include the lifting capacity in kg
for one fork and the distance to the centre of gravity in mm. See pos. 8 in figurefor one fork and the distance to the centre of gravity in mm. See pos. 8 in figure 6.286.28..
L = L = 1151150 mm, max 0 mm, max deviation 5.75 mm.deviation 5.75 mm.
L = 950 mm, max deviation 4.75 mm.L = 950 mm, max deviation 4.75 mm.
L = 800 mm, max deviation 4.00 mm.L = 800 mm, max deviation 4.00 mm.
h = 492 mm, max deviation 2.46 mm.h = 492 mm, max deviation 2.46 mm.
h = 464 mm, max deviation 2.32 mm.h = 464 mm, max deviation 2.32 mm.
The original thickness is found by:The original thickness is found by:
•• RReaeaddining tg the he mamarkrkining og on on old ld foforrksks..
•• MeMeasasururining thg the ble bladade the thicicknknesess in ts in the che cenentrtre of te of the she shahanknk..
•• CoContntacactinting Atg Atlelet for int for inforformamatition aon abobout blut blade ade ththicicknknesess.s.
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