8.5.6.5
Replacing the bottom block (standard) with internal cut-off springs for 2/1 reeving
Fig. 57
1.
Remove guide half sections (1) (four M 6 bolts);
2.
Remove bottom block retaining bolts (2) and remove the bottom block.
3.
Insert the new chain into the bottom block in the same position and orientation (chain must operate without
any twist);
4.
Re-assemble the bottom block and tighten bolts (2) to a torque of 52 Nm;
5.
Check correct fit of the four cut-off springs (3) in new halves (4) of the bottom block;
6.
Install new guide half sections (1) and tighten bolts (5) to a torque of 5,5 Nm;
7.
Apply the load capacity plate;
8.
Perform a function check (run against the operating limit switches and check against the 7-segment display).
Tightening torques [Nm]
DC 10
Bottom block with internal cut-off springs
Bottom block halves
52,0
Guide section halves
5,5
Tab. 61
Bottom block as of approx. 09/2009
Fig. 58
As of approx. 09/2009, the bottom block is provided with rubber lips (1)
at the chain entry points. The rubber lips should be checked for wear
and correct fit during the annual inspection.
214
80
2 44/291
113
85
Summary of Contents for DC-Com 1
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