Wire Rope Hoists _ Operating and Maintenance ... - STAHL-POLSKA

6 Inspection and maintenance
40
a/b [mm] c
50 Hz 60 Hz [mm]
130 150 40
70 80 20
40 50 10
6.7.5 Setting limit switch
The cover of the limit switch must be removed to set the contacts. This exposes live
contact connections. There is thus a danger of contact with live parts!
The limit switch can be adjusted at the setscrews (S1)-(S2) or (S1)-(S4):
Turning to the left: switching point is moved "downwards",
Turning to the right: switching point is moved "upwards".
Adjusting en bloc
All the cam discs can be moved together with the aid of the black setscrew (S0). The
settings of the individual contacts relative to one another remain unchanged.
Set the limit switch using a socket spanner (04 430 50 99 0) and without using
excessive force. Do not use a power screwdriver or similar.
Adjust the switching points in the following sequence:
1. A↑ (S1)
2. B↑ (S3)
3. B↑↑ (S4)
4. A↓ (S2)
Switching point A↑ (S1)
"Emergency limit switch top hook position"
Lift bottom hook block to "a" - "c", (sketch, table). If necessary turn setscrew (S1) to
the right beforehand.
Turn setscrew (S1) to the left until contact S1 switches audibly.
Press override button (S261) in panel box and at the same time "down" button to
leave the limit switch area.
Switching point B↑/B↑↑ (S3/S4)
Lift bottom hook block 2/1 to a+10 mm, or to a+5 mm for 4/1, if necessary turn
setscrew (S1) to the right beforehand.
Turn setscrew (S3) to the left until contact S3 switches audibly
Lower and lift bottom hook block until B↑ (S3) switches.
Lower bottom hook block by b (sketch, table).
Turn setscrew S4 to the left until contact S4 switches audibly.
Check cut-off point in main and creep hoist.
Switching point A↓ (S2)
"Emergency limit switch bottom hook position"
(Minimum clearance between rope guide (S) and clamping claws (K) for rope attachment
= 20 mm, see sketch)
Set bottom hook position so that the bottom hook block does not touch the ground
(would cause slack rope)
Lower bottom hook block to desired hook position, if necessary turn setscrew (S2)
to the left beforehand.
Turn setscrew (S2) to the right until contact S2 switches audibly.
Check cut-off point in main and creep hoist.
Safety note:
Incorrectly set limit switches may cause serious accidents!
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BASH_02_1.FM