Abus ABUCompact GM2 - Page 35

Ins p ect i o n | C hec k ing t h e f ric t i on c l utc h
35
Size GM2 GM4 GM6 GM8
Standard
designation of
chain
HEP –
3.7 x 12
DATC
HEP –
5 x 14.3
DATC
HEP –
7 x 21
DATC
HEP –
9.6 x 30
DATC
Thickness in the
joint, setting ‘dm’
3.7 mm 5 mm 7 mm 9.6 mm
Thickness in the
joint, min. ‘dm’
3.3 mm 4.5 mm 6.3 mm 8.6 mm
Individual spacing,
inside, setting ‘t’
12
mm
14.3
mm
21
mm
30
mm
Individual spacing,
inside, max. ‘t’
12.5
mm
14.9
mm
21.8
mm
31.2
mm
Length over 11
chain links, max.
‘l’
142.2
mm
170.7
mm
249.9
mm
356.2
mm
Surface galvanised
Material special chain steel
Max. load capacity
per fall
320 kg 630 kg 1250 kg 2000 kg
Min.
manufacturing test
force
12.5 kN 22.3 kN 43.5 kN 82.5 kN
Min. breaking
strength
20 kN 35.7 kN 70 kN 132 kN
Min. elongation at
fracture
10 %
Weight per metre
0.34
kg/m
0.65
kg/m
1.24
kg/m
2.27
kg/m
Stamp H 16
CHECKING THE FRICTION CLUTCH
To test the friction clutch, the slip force test unit must
be available. Be sure to observe the product manual
of the slip force test unit.
Hang the slip force test unit in the chain about
20 cm beneath the chain hoist.
Lift at a slow lifting speed until the slip force
test unit is run under the chain hoist and the
friction clutch responds.
Read off the measured value on the slip force
test unit.
If the displayed value deviates from the range
of 1.3 to 1.4 times the maximum load capacity:
Adjust the friction clutch; see “Adjusting the
friction clutch”, page 75.
Hook up a test load with the maximum load
capacity of the chain hoist and raise it.