MAINTENANCE MANUAL – ELECTRIC ROTARY DRYER
FERREX ENGINEERING LTD.
Page 16
Ref. #2278
8. Drum Sprocket:- Check the wear of the teeth if getting worn down order one to be
replaced with-in a month.
9. Drum:- Check the wear of the drum. Check the wear of the flights. If flights are worn
down by 25% then order a new drum.
10. Primary Heater Fan:- Check for noise and vibrartion if too noisy and vibration check
bearings and if need to be replaced order a fan spare kit and install at a later date.
11. Secondary Fan:- Check for noise and vibrartion if too noisy and vibration check bearings
and if need to be replaced order a fan spare kit and install at a later date.
12. Baghouse:- Check if ther are any leaks in the access doors. If there is any call Ferrex
Service.
13. Baghouse:- Check door seals for deterioration. If there is any call Ferrex Service.
14. Baghouse:- Check airlines and fittings for leaks. If there is any fix the leaks next down
day.
15. Baghouse:- Blow out dP gauge lines.
16. Baghouse Fan:- Check for noise and vibrartion if too noisy and vibration check bearings
and if need to be replaced order a fan spare kit and install at a later date.
17. Bagouse Fan:- Check for Belt wear. If loose adjust if starting to wear out call Ferrex
Service for new belts when received.
Quarterly
1. Bearings;-grease (LGMT2 general purpose grease) lubricate 20 grams~
2. Primary Heater:- Open terminal housing and ensure it is dry and clean.
3. Primary Heater:- Check the resistance between each circuit leg and ground. If reading
less than one megohm, contact us.
4. Primary Heater:- Check all terminals for damage and to ensure that all terminals are tight
and secure. Care should be taken not to overtighten terminals.
5. Primary Heater:- Check enclosure gasket and replace if damaged.
6. Primary Heater:- Not the position of the over-temp thermocouple. This is marked on the
heater flange. Remove bolts from heater and pull heater bundle. Care must be taken in
removing the bundle not to damage elements.
