Stahl SHR 6 - Page 45

BASH_02_1.FM
6 Inspection and maintenance
45
6.8.8 Setting hoist limit switch (continued)
Combined operational and emergency hoist limit switch:
1. A
↑ (S1)
2. B
↑ (S3)
3. A
↓ (S2)
4. B
↓ (S4)
Switching point A
↑ (S1)
"Emergency limit switch top hook position"
• Lift bottom hook block 2/1 to a+10 mm or to a+5 mm for 4/1 (sketch, table).
If necessary turn setscrew (S1) to the right beforehand.
• Turn setscrew (S1) to the left until contact S1 switches audibly.
• Check cut-off point in main and creep hoist
Switching point B
↑ (S3)
"Operational limit switch top hook position"
(Minimum clearance to A↑ 60 mm for 2/1, 40 mm for 4/1)
• Lift bottom hook block 2/1 to 10 mm, or to 5 mm for 4/1, below the desired cut-off
point, if necessary turn setscrew (S3) to the right beforehand.
• Turn setscrew (S3) to the left until contact S3 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
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 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.
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 posi-
tion, if necessary turn setscrew (S4) to the left beforehand
• Turn setscrew (S4) to the right until contact S4 switches audibly
• Check cut-off point in main and creep hoist.
a [mm]
50 Hz 60 Hz
1/1
2/2-1
130 150
2/1
4/2-1
70 80
4/1 40 50
Safety note:
Incorrectly set limit switches may cause serious accidents!
10.08
*1 Effective hook path