MODE V6 - Step 5: Calculate the SWP% and remaining service life

7/2015
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For example, if we use S
1
= 215.468, S
2
= 210.26, S
3
(S
i
) = 214.272:
S = 215.468+ 210.26+ 214.272 = 640
Step 5: Calculate the SWP% and remaining service life
Check the hoist operating group which can be found on the hoist’s rating plate.
In the appropriate column of the following table, find the number closest to S. The two final
columns on the same row will tell you the remaining SWP% and the estimated remaining
service life.
Hoist operating group marked on hoist's rating plate
SWP%
Estimated
remaining
service life
[years]
M3(1Bm)
M4(1Am)
M5(2m)
M6(3m)
M7(4m)
M8(5m)
Actual duration of service, S [h]
0
0
0
0
0
0
100%
10
40
80
160
320
630
1250
90%
9
80
160
320
640
1260
2500
80%
8
120
240
480
960
1890
3750
70%
7
160
320
640
1280
2520
5000
60%
6
200
400
800
1600
3150
6250
50%
5
240
480
960
1920
3790
7500
40%
4
280
560
1120
2240
4410
8750
30%
3
320
640
1280
2560
5040
10000
20%
2
360
720
1440
2880
5670
11250
10%
1
400
800
1600
3200
6300
12500
0%
0
Record the value of SWP% in the log book.
For example, if we use S = 640，Hoist duty group = M5 (2m) then SWP%=60%:
Hoist operating group marked on hoist's rating plate
SWP%
Estimated
remaining
service life
[years]
M3(1Bm)
M4(1Am)
M5(2m)
M6(3m)
M7(4m)
M8(5m)
Actual duration of service, S [h]
0
0
0
0
0
0
100%
10
40
80
160
320
630
1250
90%
9
80
160
320
640
1260
2500
80%
8
120
240
480
960
1890
3750
70%
7
160
320
640
1280
2520
5000
60%
6
200
400
800
1600
3150
6250
50%
5
240
480
960
1920
3790
7500
40%
4
280
560
1120
2240
4410
8750
30%
3
320
640
1280
2560
5040
10000
20%
2
360
720
1440
2880
5670
11250
10%
1
400
800
1600
3200
6300
12500
0%
0
When SWP% reaches zero, a General Overhaul (GO) must be conducted. Refer to chapter
'General Overhaul (GO)’