Maintenance overview
5.4 Measures required for monitoring the winches
5 - 22 3 302 756 en Maintenance manual
GMK6400
16.11.2018
The real service life of a winch is affected by a number of additional external
factors, such as:
5.4.2 Proportion of theoretical service life used
The truck crane operator must perform a truck crane inspection at least once
a year (ISO 9927-1 and BGV D 6 (VGB 9) / BGV
D 8 (VBG 8)).
This includes determining the proportion of theoretical service life that has
been used. If required, the truck crane operator has to appoint an approved
inspector for this assessment.
The actual operating conditions (load spectrum) and the operating hours of
the hoists are to be determined for each inspection interval when determin
-
ing the proportion of theoretical service life that has been used. The operat-
ing company is responsible for proper documentation in the crane logbook.
1. Overloading caused by improper use of the truck crane.
2. Insufficient maintenance: Oil is not changed at the specified
intervals.
3. Operating errors:
Extreme acceleration or deceleration
of the load
Load falling into the ropes
4. Improper maintenance: Wrong oil used
Incorrect filling quantity
Contamination during oil change
5. Improper assembly during maintenance and repair work.
6. Leaks which were ignored.
7. Improper adjustment of safety devices.
8. Concealed damage caused by accidents.
9. Extreme environmental
conditions:
Low or high temperatures
Aggressive atmosphere
Dust and dirt
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