Load Hook; Checking The Load Hook; Hook Safety Catch; Checking The Return Sprocket - DEMAG DC-Com 1 Operating Instructions Manual

8.5.6

Load hook

8.5.6.1

Checking the load hook

Fig. 55
8.5.6.2

Hook safety catch

If the hook safety catch has to be replaced, turn the nut on the bolt until at least two turns of the thread can be
seen on the other side of the nut. The bolted connection must only be tightened enough to allow the hook safety
catch to move freely.
8.5.6.3

Checking the return sprocket

The return sprocket must be checked every month to ensure that it turns easily. To do this, any load bars attach‐
ed to the bottom block have to be removed.
Check to ensure the bottom blocks moves easily during lifting and lowering operations. Abrupt movements of the
bottom block indicate wear.
We recommend that the return sprocket should be replaced every second time the chain is replaced.
27)
Permissible deviation +10%
28)
Permissible deviation -5%
Load capacity [kg]
Chain hoist DC-Com
Reeving
Load hook Type
a1
a2
nom
a2
b1
h1
Dimensions [mm]
h2
nom
h2
L2
L4
d1
Max. test force [kN]
Max. hook force [kN]
Tab. 59
125 250 500
1 2 5
1/1
T010 T020
28 34
27)
22,8 25,4
25,08 27,94
max
16 21
20 26,1
28)
16,9 21,8
16,055 20,71
min
20 24
82 94
15 17
6 13
13 25
1250 2000
10
2/1
T04 V 5
40 50
33,7 43
37,07 47,3
27 29
34 44
27,7 36
26,315 34,2
28 45
116 159
20 41,8
25 50
50 100
83