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6 Repair and maintenance
6.1 Instructions of repair and maintenance
Note: Besides safety instructions in Chapter 1, comply with the following instructions for
repair and maintenance.
¥
1
¦
In order to ensure deironing effects and to avoid plugups inside of the magnet housing
due to heavy adhesion of excessive metal impurities on the surface of magnet
element, every work shift should open the door on regular basis to manually clean
out all the attracted metal and other impurities.
¥
2
¦
U nder normal conditions, the magnet does not need to magnetize in 6-7 years. If the
magnetic force shows obvious weakening, magnetization or magnet replacement is
required in timely fashion.
3
Replace the conical top cover of the magnet element in no time upon severe wear due
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to the direct impacting and friction by material flow.
6.2 Daily inspection and regular inspection
If abnormality is found to the magnet during daily or regular inspection, stop using the
magnet and take immediate steps to ensure the normal conditions back to the magnet
before resuming operation.
6.2.1
List of daily inspection items
No.
Section
Conical top cover
1
of magnet
element
Surface of
2
magnet element
3
Door
6.2.2
List of regular inspection items
No.
Section
Permanent
1
magnet element
2
Door sealing
3
Fasteners
6.3 Common malfunctions and troubleshooting
Table 6-3 Common malfunctions and troubleshooting
Malfunction
Plugup
Metal impurities found
in the product
Table 6-1 List of daily inspection items
Inspection items
If severely worn out
If metal impurities staying
If closed well
Table 6-2 List of regular inspection items
Inspection items
If magnetic force weakening
If damaged
If loosening
Causes
Too many metal impurities
attached to magnet
element
Magnetic force weakening
Excessive feeding
Cycle
Daily
Daily
Daily
Cycle
6 mon.
6 mon.
Monthly Inspection
Troubleshooting
Clean out impurities
Replace the permanent magnet
Reduce feeding
6-1
Method
Solution
Inspection Replacement
Inspection
Cleaning
Inspection
Adjustment
Method
Solution
Inspection
Checking
Inspection Replacement
Adjustment
element
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