Maintenance overview
5.4 Measures required for winch monitoring
5 - 28 3 302 577 en Maintenance manual
GMK7450
16.08.2018
Sample table to determine the remaining theoretical service life on winch no. 1 (main hoist winch)
Crane type: GMK 3045
Work number: 3045 42 06
Initial commissioning: 10. 06. 1990
Serial number of the winch in accordance with the model plate: 13 301
Last general overhaul performed on:
........................
Winch design data (see operating manual):
Engine group: M 3
Load spectrum: Q 1 (L1)
Factor of the load spectrum: Km = 0.125
Theoretical service life: D = 3,200 h
CAUTION:
A gene
ral overhau
l is to be performed every 10 years!
For alternative provision, refer to section 5.4.2, p. 5 - 25.
General overhaul performed on.......................................
Inspection
interval no.
(max.
1 year)
Date of first
commis-
sioning/date
of inspec-
tion
Operating
conditions
since the
last inspec-
tion
Factor of the
load spec-
trum
Operating
hours of the
entire crane
Operating
hours of the
superstruc-
ture
Operating
hours of the
superstruc-
ture since
the last
inspection
Winch oper-
ating hours
Operating
hours T
i
of the
winch since the
last inspection
Used propor-
tion S
i
of theo-
retical service
life D:
Remaining the-
oretical service
life
D
i
= D
i-1
- S
i
Name of the
expert
Signature Comment Name of the
approved
inspector
Signature
“i” Km
i
[h]
[h] [h]
[h] [h] [h] [h]
0(*) 10. 6. 90 – – – – – 0 3,200
1 5. 6. 91 L 1 0.125 – – – 160 160 160 3,040 Müller
2 20. 5. 92 L 3 0.5 – – – 640 480 1,920 1,120 Huber
3 18. 5. 93 L 2 0.25 – – – 940 300 600 520 Schmitz
S
i
= Used proportion of theoretical service life since the last inspection
D
i
= Remaining theoretical service life
D
i - 1
= Remaining theoretical service life after the previous inspection
Km = Factor of the load spectrum used to calculate the winch.
This factor is given in the operating manual.
Km
i
= Factor of the load spectrum in the inspection interval “i” according to section 2.1
T
i
= Effective operating hours in the inspection interval “i” according to section 2.2
(*) Copy the last line of the previous page to the following page.