Dings Magnetic Group 2 PULLEY EDDY CURRENT SEPARATOR - Manual (Page 7)

EDDY CURRENT SEPARATOR
General Maintenance
Lubrication
CAUTION: Do not grease the machine while in
operation. Lock out power.
Follow standard bearing maintenance. Lubricate
the bearings in your normal lubrication schedule,
with a lithium-based grease conforming to NLGI
Grade 2. However, if conditions are very dirty,
lubricate every two weeks.
CAUTION: Do not over-grease the bearings on
the wear shell of the rotor.
Motors and Drive Components
Standard motor maintenance applies. Inspect
motors at regular intervals. Keep the motors clean
and the ventilation openings clear of dust or other
debris. Check gear reducer oil level and fill as
required with proper lubricant.
Inspect V-belts and sheaves on the magnetic
rotor drive at least once a month and replace when
necessary. Periodically check and maintain proper
V-belt tension.
All pulley hubs and bearings are tightened at the
factory. Shortly after application of full load at
installation, the hub bolts and set screws on
bearings may need to be tightened. Repeat this
every 2-6 months, or as needed.
Belt Tracking and Tension
Conveyor belt tracking and tension should be checked
once a week. Follow procedures for tracking on page 5.
Replacing the Conveyor Belt
The new belt should be of the same type and size
as the old belt, with similar cleats and side walls.
A stainless splice should be used, with a top cover
flap glued over the splice once the belt is installed.
Ends of the belt must be cut square to the edges
of the belt. If not, belt tracking may be difficult
or impossible.
To replace the belt:
1) Lock out power and use caution around the
magnetic rotor as it is very powerful.
2) Loosen the take-ups located at the opposite end
from the magnetic rotor.
3) Remove old belt by cutting it off.
4) Inspect and clean pulleys. Make sure all bolts
holding the bearings are tight.
5) Feed the new belt onto the unit so that the splice is
on top, on the slider bed (see Fig. 11). The flap
should be on the belt end that is closest to the
magnetic rotor.
6) Attach the ends of the belt following the
manufacturer’s instructions.
7) Glue flap down over splice according to the
manufacturer’s instructions. Be sure the flap is
flat and wrinkle-free.
8) Tighten the take-ups evenly until the belt has a
small amount of tension on it. Make sure the belt
is centered on all the pulleys.
9) Track the belt following instructions on page 5.
10) Stop the belt with the splice on top. Turn off the
unit and lock out the power.
11) Adjust the rubber cowling seals if required so that
there is about 1/16” of clearance between the seals
and the thickest part of the belt (splice area). If the
seals touch the belt, they may wear a groove in the
belt.
Replacing the Wear Shell
Return the magnetic rotor pulley assembly to
Dings Co. for replacement of the wear shell.
CAUTION: Use extreme care as pulley assembly
is magnetically very strong and can be drawn to
ferrous metal with very high force.
If the magnetic rotor is removed from the
separator, it should never be allowed to rest on the
shell surface; it should be suspended on the shaft.
Although the separator is designed for heavy-duty
operation, the shell is brittle and a sudden shock or
blow could damage it. Place the magnetic rotor in a
wooden crate to protect it when not installed in the
separator.
Figure 11 - Belt Replacement.
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