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

6 Inspection and maintenance
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38
1/1
2/2-1
2/1
4/2-1
a [mm]
50 Hz 60 Hz
130 150
70 80
4/1 40 50
6.6.5 Setting limit switch (continued)
Switching point A↓ (S1)
"Emergency limit switch bottom hook position"
(Minimum clearance between rope guide (S) and clamping claws (K) for rope
anchorage = 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 2/1 to 120 mm, or 60 mm for 4/1, above desired hook
position, if necessary turn setscrew (S1) to the left beforehand.
Turn setscrew (S1) to the right until contact S1 switches audibly.
Check cut-off point in main and creep hoist.
Switching point B↓ (S3)
"Operational limit switch bottom hook position"
(Minimum clearance to A↑ 120 mm for 2/1, 80 mm for 4/1)
Lower bottom hook block 2/1 to 120 mm, or 60 mm for 4/1, above desired hook position,
if necessary turn setscrew (S3) to the left beforehand
Turn setscrew (S3) to the right until contact S3 switches audibly
Check cut-off point in main and creep hoist.
6.6.6 Servicing limit switch
Maintenance work is restricted to checking the cut-off points. No maintenance or
inspection is necessary for the gear limit switch itself.
Any dust deposits that may be visible when the housing is opened must on no
account be removed with compressed air as this would force the dust into the
contacts and impair the switching function.
On no account must benzene or other solvents be used to clean the limit switch!
*1 Effective hook path with operational limit switch
*2 Option
Safety note:
Incorrectly set limit switches may cause serious accidents!
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BASH_02_1.FM