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26.12.2011
LFM-02-e
Rev Nr: 7
2.6.2
General maintenance
Yenen developed several spare part kits for maintaining the meter. Partial or other repairs should not
be attempted as this may jeopardize the safety and accuracy of the meter.
Only trained, qualified and certified personnel familiar with handling liquids under pressure, such
as LPG, may service Yenen equipment
Installation details of the spare part kits are provided with the kit itself. With the meter
disassembled it is recommended that you perform a visual inspection of the entire meter:
Check the o-rings. O-rings should be smooth. Cracked, warn or dry o-rings need to be,
replaced. Also, scratched o-rings may cause inaccuracy of the meter.
Check the gaskets. Gaskets should be firm, but flexible. Cracked, worn or torn gaskets
need to be replaced. Scratched gaskets may cause internal leaks, which causes the
meter to be inaccurate.
Check fasteners and threads. There should be no debris in threads. Fasteners, such as
bolts and screws, should be straight and clean. Fasteners that are bent, rusted or have
pulled threads should be replaced. If such fasteners are found, it is recommended to
examine the housing and covers for such damage also.
Check the paint. When removing fasteners the coating may be damaged. To prevent
corrosion re-apply coating and paint.
