Columbus McKinnon Yale AL 750 Traduction De Mode D'emploi page 23

If required, the results of inspections and appropriate repairs must be verified. If the hoist (from
1 t lifting weight) is fitted on or in a trolley and if the hoist is used to move a lifted load in one or
several directions, the installation is considered to be a crane and the further inspections must
be carried out, as required.
Paint damage should be touched up in order to avoid corrosion. All joints and sliding surfaces
should be slightly greased. In the case of heavy contamination, the unit must be cleaned.
The unit must be given a general overhaul after 10 years, at the latest.
In particular, check the dimensions of the load chain, the load hook and the top hook.
ATTENTION: After the replacement of components, a subsequent inspection by a
competent person is obligatory!
Inspection of the load chain (acc. to DIN 685-5)
Load chains must be inspected for mechanical damage at annular intervals, however after 50
operating hours, at the latest. Inspect the load chain for sufficient lubrication and check for
external defects, deformations, superficial cracks, wear and corrosion marks.
Round-section steel chains must be replaced when the original nominal thickness ´d´ on the
chain link with the worst wear has been reduced by more than 10% or when the chain has
elongated over one pitch ´pn´ by 5% or over 11 pitches (11 x pn) by 3 %.
Nominal dimensions and wear limits are shown in table 2. If one of the limit values is reached,
the load chain must be replaced.
p
n
d = Nenndicke der Kette / Nominal thickness of chain
Epaisseur nominale de la chaîne
d , d
1 2
d =
min.
Nominalwerte und Verschleißgrenzen / Nominal values and wear limitation
Valeurs nominales et limites d'usure
AL
Rundstahlkette / Round link chain / Chaîne à maillons [mm]
Güteklasse / Grade / Grade
Durchmesser / Diameter / Diamètre
Teilung / Pitch / Division
Meßlänge / Length / Longueur
= Istwert / Actual value / Valeur réelle
d + d
1 2
≤ 0,9 d
2
d
nom.
d
min.
p
n nom.
p
n max.
11 x p
n nom.
11 x p
n max.
©
2015 Columbus McKinnon Industrial Products GmbH
11 x
p
n
750 1000
6,3 x 19,1 6,3 x 19,1
T
[mm] 6,3 6,3
[mm] 5,7 5,7
[mm] 19,1 19,1
[mm] 20,1 20,1
[mm] 210,1 210,1
[mm] 216,4 216,4
Tab. 2
d
1
1500 3000
7,1 x 21,2 10 x 30,2
T T
7,1 10,0
6,4
21,2 30,2
22,3 31,7
233,2 332,2
240,2 342,2
T
9,0