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8. Maintenance and service
ATTENTION!
Clean off any dirt before checking the device!
WARNING / CAUTION / ATTENTION!
To perform maintenance and repairs, personal protection equipment appropriate
for the work is an absolute requirement.
Inspections to be carried out:
Visual inspection
Door opener
• Cylinder and piston rod undamaged and not deformed,
• Correct and firm fit of claw and base,
• Claw and base are free from damage, deformation and nicks,
• General tightness (leaks),
• Mobility of swivel connection,
• Labels complete and legible,
• Couplings must be easy to couple,
• Dust protection caps must be present.
Hoses (see also operating instructions for hose lines)
• Visual inspection for visible damage,
• Check for leaks,
• Check date of manufacture (note the 10-year replacement period).
Operational check
• Piston can be fully extended and retracted (see chapter “Technical Data”),
• Flawless extension and retraction,
• No suspicious noises during the procedure,
• No leaks.
The devices are subject to very high mechanical stress. Therefore, a visual inspection must
be carried out after every use and at least once a year. These inspections enable the early
detection of wear and tear, which means that punctual replacement of this wearing parts
prevents breakages from occurring. Every 3 years or when there might be doubts regarding
the safety or reliability of the unit, an additional function check is to be carried out (in this
connection, comply with the applicable national and international regulations with regard to
the maintenance intervals of rescue equipment).
