Maintenance overview
5.4 Measures required for winch monitoring
5 - 22 3 302 574 en Maintenance manual
GMK3060
03.11.2017
The actual service life of a winch is affected by a number of additional exter-
nal 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 DGUV Regulation 52 (BGV D 6) / DGUV
Regulation 54 (BGV D 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 hoist operating
hours must be determined for each inspection interval when determining
the proportion of theore
tical service life that has been used. The operator 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 drops and stops suddenly while
suspended.
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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