BAST_
02.FM
17
6 Maintenance
6.3 Checking hook for wear
- DIN 15405 part 1
Check load hook or suspension hook for wear. The hook dimensions must not exceed
those specified in the following table.
If load hook or suspension hook should display distortion, breaks, cracks or corro-
sion impair the lifting capacity they must be replaced.
N.B.:
Hook safety latch must close automatically, replace if necessary.
6.4 Checking and lubricating load
chain
- DIN 685 part 5
• Operate chain hoist under load. If any loud cracking sounds can be heard, check
chain, chain sprocket and return sheaves for lubrication and wear.
• Check chain dimensions, measure chain length over 11 links. The chain dimen-
sions must not exceed the values given in the table below.
• The load chain must be replaced immediately if it displays distortion, breaks,
cracks or corrosion, see page 22
N.B.:
Lubricate the load chain above all at the joints.
• Check chain guide, chain sprocket and idler sheave on the bottom hook block and
replace if necessary, see page 22
• Check chain anchorage, replace if necessary.
Caution:
Do not turn and refit a used chain suspension bolt!
ST05
ST10
ST20
ST30
ST32
ST50/ST60
1/1
2/1
1/1
2/1
1/1
2/1
1/1
2/1
1/1
2/1
1/1
2/1
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
Load hook
h
19
24
19
24
24
31
31
37
31
40
37
48
h min.
18
22,8
18
22,8 22,8 29,5 29,5 35,2 29,5
38
35,2 45,6
z
22
29,5
22
29,5 29,5
30
30
33
30
35
33
41
z max. 24,2 32,5 24,2 32,5 32,5
33
33
36,3
33
38,5 36,5 45,1
Suspension
hook
h
24
24
24
24
37
37
37
37
39,5 39,5 39,5 39,5
h min. 22,8 22,8 22,8 22,8 35,1 35,1 35,1 35,1 37,5 37,5 37,5 37,5
z
29,5 29,5 31,5 31,5
41
41
41
41
42
42
42
42
z max. 32,5 32,5 34,6 34,6 45,1 45,1 45,1 45,1 46,2 46,2 46,2 46,2
ST05
ST10
ST20
ST30
ST32
ST50/ST60
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
dxt
4x12
5x16
7x21,9
9x27
9x27
11,3x31
d min
3,6
4,5
6,3
8,1
8,1
10,2
t max
12,5
16,8
23
28,3
28,3
32,5
11 t max
134,4
179,66
245,92
303,18
303,18
350,37
Chain gauge (part no. 14 320 00 65 0)
09.07
