DMN-WESTINGHOUSE AL-BL Rotary Valves
Code: AL-E.B.01.B 11-2012
52
4. Maintenance
4.1 General
The interval between overhauls will vary with the product being handled and should
be based on total operating time. To a large degree the rate of wear for a particular
application would be ascertained by practical experience.
Maintenance apart from planned overhaul should be adequately covered by regular
and frequent attention to the rotor shaft glands, reduction gear lubrication and
adjustment and lubrication of the motor drive chain and chain sprockets.
It is recommended that the complete rotary valve is dismantled for cleaning,
inspection and overhaul as necessary at regular intervals.
Please read safety instructions (chapter 1) before carrying out
routine overhauls on valves.
4.2 Maintenance every 3 months or after 2,500 operating hours
- Check if valve turns smoothly.
- Check adjustment and functioning purge air, if necessary re-adjust.
- Check chain, tighten and grease (see 2.1).
4.3 General maintenance every 12 months or after 10,000 operating
hours
- Remove valve from system and clean it completely.
- Dismantle valve .
- Check packing/lip seal for damages.
- Check drive shaft for wear or damages.
- Check rotor blades for wear or damages. Repair if possible, otherwise replace.
- Assemble the valve and adjust rotor/rotor blades.
- Connect air coupling and adjust .
- Check chain, tighten and grease.
4.4 Maintenance drive
Please study operation instructions supplied.
To Next Page
Loading...