7
Inspection and maintenance
120
07.2020
ba
-o
.2
.6
.0
-us
-3
.2
-ys
|
A1
18
67
50
1 Re
v A
E
Dim.
[in]
a
*1
50 Hz
60 Hz
1PS
1PD
5.1
5.9
2PS
2PD
2.8
3.1
4PS
4PD
1.6
2
b
b = a
c
*1
2.4
d
Effective hook path
*1
With the option
hook operated
hoist limit switch
(see section 4.12),
dimension “a” increases by 3.9
in,
dimension “c” increases in accordance with
the table.
Type
Dimension “c”
enlargement
[in]
YKA/SKA, YKB/SKB
2
YKC/SKC, YKE/SKE
3.9
YKD/SKD
5.9
Adjusting the fast/slow switching “top” (B
)
Hoist the load hook to 0.39 in in front of the desired switch-off point (observe the
minimum distance “b”).
–
If the load hook should become slower beforehand, turn the adjustment screw
“S4”
clockwise 1 revolution and repeat step 1.
Turn the adjustment screw “S4”
anticlockwise until the switch contact latches audibly.
Actuate the DOWN-button in the control pendant.
–
The fast/slow switching “top” has been set.
Adjusting emergency hoist limit switching, “bottom” (A
)
Actuate the DOWN-button in the control pendant with caution.
