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02.11.11 Working instructions WIDOS 4900 Page 28 of 46
7. Maintenance and repair
Goal of the chapter is:
• Keeping of the nominal state and the operation capacity of the machine.
• Increasing of the efficiency by avoiding non-planned outage.
• Efficient planning of the maintenance works and the maintenance tools.
7.1. Clamping elements
• For a long service life clean and grease regularly the threaded spindles and the joint parts
which are used for clamping the pipes.
7.2. Planer
• Check the stress of the linkage in the planer and grease it regularly. Dismount the cover to
get to the linkage.
• Do not lay the planer on its blades.
• The blades of the planer must be checked for sharpness. Wrong blades must be either turned
over (double sided) or replaced (max. thickness of the shavings: 0.2 mm !).
• Check the working of the safety micro switch.
7.3. Storing
• The cylindrical waves of the basic machine are to be kept free from dirtiness and need to be
covered with a thin oil film if they are not being used.
• Store dry.
7.4. Used hydraulic oil
Only use HLPD 32.
Features: protection against corrosion, resistance to ageing, abrasion-reducing additives, high
carrying capacity and particulary water retending.
The hydraulic oil has to be handled properly and to be disposed of.
7.5. Checking the hydraulic oil level
• Remove the red screw at the top of the aggregate.
• Take out the oil dip rod, clean it and insert it again.
• The oil-level must be between the two markers.
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