SEM 250 Manual de usuario
Operation and Maintenance Manual
SEM Model 250 Disintegrator
MAN-021 | Created 01-27-20 | ECN-00507
For sales, service, parts, and customer support, contact us:
SECURITY ENGINEERED MACHINERY
5 Walkup Drive, Westborough, MA 01581
1-508-366-1488 • Toll Free US 1-800-225-9293
www.semshred.com
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2
Important Safety Procedures
The Model 250 key tape & optical media disintegrator incorporates powerful, heavy duty cutting
mechanisms, serious and permanent injury may result if proper precautions are not followed.
1. This equipment should never be operated by children or individuals that are
untrained or incapable of understanding these safety precautions.
2. Do not reach into the feed opening for any reason. Never insert fingers, hands,
other extremities, or objects not meant to be crushed into the feed opening.
3. Do not operate or come into close proximity to this equipment wearing loose
clothing, neckties, dangling jewelry, or long hair which may become entangled in
the cutting chamber.
4. Maintenance or repair of this equipment should be performed only by trained,
authorized service personnel
5. Always disconnect electric power (unplug) before removing or opening any
cover or other panels providing access to the internal mechanisms.
If you over feed the shredder or have an emergency and need to shut down the
machine, press the red
6. In case of emergency, press EMERGENCY STOP button on the left side of the
machine or open the collection bin door.
SEM recommends that machine operators wear safety glasses, hearing protection, a mask, and if doing
maintenance or opening the cutting chamber, cut resistant gloves. It is up to each customer to
determine the PPE for their individual site
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Table of Contents
Important Safety Procedures ......................................................................................................... 2
Table of Contents ........................................................................................................................... 3
General Assembly of the Model 250 Key Tape Unit (Table-Top Version) ....................................... 4
Installation and Power Requirements ............................................................................................ 5
Disintegrator Location .............................................................................................................................. 5
Electrical Wiring (See Page 12 for Electrical Diagram) ............................................................................. 5
Power Requirements ................................................................................................................................ 5
Cabinet Installation and Setup ................................................................................................................. 6
Operation and Feed Rates .............................................................................................................. 7
Troubleshooting ............................................................................................................................. 8
The Model 250C will not start .................................................................................................................. 8
The cutting chamber starts, but the vacuum doesn’t .............................................................................. 8
The cutting chamber area is getting jammed more frequently ............................................................... 8
Maintenance .................................................................................................................................. 9
Belt Adjustment ........................................................................................................................................ 9
Lubrication ............................................................................................................................................... 9
Knives ....................................................................................................................................................... 9
Replacing Knives (See diagram on page 9) ............................................................................................... 9
Recommended Rotor and Bed Knife Setting Assembly .......................................................................... 11
Knife Sharpening .................................................................................................................................... 11
Notes on Knife Grinding ......................................................................................................................... 12
Changing the Screen ............................................................................................................................... 13
Recommended Spare/Optional Items Available ........................................................................... 13
Model 250 Vacuum Directions ..................................................................................................... 14
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General Assembly of the Model 250 Key Tape Unit
(Table-Top Version)
- Shown out of position
- Placed aside chamber and base
- Space requirement reference: approximately 21” x 21” x 12” high
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Installation and Power Requirements
Disintegrator Location
The Model 250 can be located in an office area within 6 feet of a wall receptacle with a dedicated 20-
amp line. It is recommended that there be unit be two to three inches between the rear of the unit
and the wall.
Electrical Wiring (See Page 12 for Electrical Diagram)
A.
The Model 250 includes an appropriate power cord and 20-amp male plug. The Model 250
is activated by a front mounted ON/OFF toggle switch.
B.
The 1-gallon capacity vacuum unit is supplied with a plug for 115V (7.3 amp) or 3-gallon
220V (4.8 amp) to suit the customer’s order requirements. The vacuum plugs directly into
the receptacle supplied in the unit’s base.
C.
The Model 250 has been wired to your original order specifications. The motor supplied
operates on single phase voltage (115V or 220V).
D.
Note: Motors are normally dual voltages, 115/230V, but can only be operated at the
specific voltage as wired at the factory, if voltage change is required in the field contact the
factory for proper instructions.
E.
If for any reason the Model 250 is rotating in the wrong direction, disconnect the power
(unplug), and remove the metal plate on the motor and change the leads as shown on
the plate diagram.
F.
Electrical schematics available in PDF on request.
Power Requirements
115 Volt/1-Phase/60 Cycle requires 18 amps
230 Volt/1-Phase/60 Cycle requires 9.6 amps
230 Volt/1-Phase/50 Cycle requires 11.5 amps
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Cabinet Installation and Setup
A.
Place cabinet in location
approximately 2-3 inches from
wall and within six feet of
dedicated 20-amp receptacle.
B.
Place Model 250 on top cover with front of unit door
and the four base holes aligned with the cabinet top holes.
C.
Using the supplied bolts, place a bolt and
flat washer in each of the four holes
from the top and secure tightly with
additional washer and locknut from
below using a ½” wrench and ½” socket.
D.
Place vacuum upright inside rear of
cabinet and feed hose up through large
center hole. Attach hose to rear of
collection transition.
E.
Feed vacuum power cord down
through remaining hole and connect to
vacuum plug.
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Operation and Feed Rates
Please read this section carefully. Most problems occur during the first hours of operation. Most
problems can be avoided and/or eliminated by a careful review of the operating, maintenance,
and recommended service period instructions.
A.
The Model 250 has been shipped complete, tested, and is operational when received.
B.
The Model 250 requires a 20-amp dedicated electrical line, equipped with a 20-amp
receptacle and a separate 115V circuit receptacle for the vacuum unit.
C.
Once positioned, verify that the vacuum is connected, and that all access points are closed. Turn
the toggle switch to the “ON” position and the unit will start. Both the disintegrator and the
vacuum should come on together. In the event that the vacuum does not start, locate the power
button on top of the vacuum to start the vacuum.
D.
The Model 250 was designed to destroy key tape, and optical media (CDs/DVDs/BDs) at a rate
shown below. As with any type of machinery, it can be overloaded or jammed if overfed. The
product destruction rate depends on the material type, material size, and desired deestroyed
particle size. When feeding, use the concept of “less is more”. By feeding the unit with less
volume more often will result in steadier and better feed rates, resulting in reduced operating
costs.
The Model 250 is not a shredder, but a rotary knife mill, which dictates how the unit is fed and the rate
it can be fed. Again, the rule of thumb is “less is more” creating steady output without over feeding.
Looking at the top of the Model 250 you will notice that there are two feeding slots, the smaller feeding
slot is for key tape while the other is for optical media. Key tape media can be put on the spool
attachment on the top cover of the cutting chamber.
Maximum Feed Rates
•
Optical media with a 3/32” dia. screen: eight pieces per minute
•
Optical media with a 5/64” dia. screen: four pieces per minute
E.
When destruction is complete, allow the Model 250 and vacuum to operate an additional 80
seconds after the last fed piece of material. This will prevent build up in the cutting chamber
area and evacuation line, ensuring proper operation for the next user.
F.
The Model 250’s waste collection bag must be periodically emptied for proper operation.
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Troubleshooting
The Model 250 will not start
A.
Check that the unit is plugged into a working receptacle.
B.
A motor thermal overload is located in the unit’s starter, located on top of the unit. As a safety
feature the heater in the controls may kick out after an overload. Simply reset the control to
restart the Model 250.
C.
The rotor in the cutting chamber may be jammed.
1.
Switch the power to the OFF position and unplug the power cord from the wall.
2.
Remove the top cover of the cutting chamber and remove the cover of the belt guard.
3.
Looking inside of the opened cutting chamber, look for any loose or jammed material inside
of the chamber. Taking precautions of the sharp knives inside of the cutting chamber,
carefully remove all debris from the chamber.
4.
If the rotor is in fact jammed, rotate the rotor counterclockwise by means of the drive belt
by hand to clear the clogged material.
5.
Remove all remaining debris and replace the top cover of the cutting chamber and belt guard
cover.
6.
Plug the power cord back into the wall power receptacle and turn the unit back to the ON
position.
The cutting chamber starts, but the vacuum doesn’t
A.
Check that the vacuum is plugged into the connector that goes to the starter. If not reconnect.
B.
Check that the power button on the vacuum has not been switched off. If so, turn the
vacuum to the on position.
The cutting chamber area is getting jammed more frequently
A.
Be sure that you are not over feeding the unit. See the section on operation and feed rates.
B.
Check the condition of the knives. They may require re-sharpening. See sections on
replacing and sharpening knives
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9
Maintenance
Before performing any type of maintenance on the Model 250, always disconnect the unit from
power and follow all safety precautions.
Belt Adjustment
Remove the belt guard cover. The motor is mounted on a slotted frame. Loosen the mounting
bolts and adjust the motor for proper belt tension. This is determined by applying thumb pressure
on the belt causing a slight bow on slack side. This should be no more than ½”. Important: The belt
should be checked and tightened if required after the first several days of operation. After that it
should be checked monthly.
Lubrication
Grease fittings can be found on both rotor bearings. The bearings should be greased twice a year
using Gulflex A multi-purpose or equivalent grease.
Knives
For full efficiency, knives should be sharpened from two to five times per year, depending upon
use. If for example, your knives require sharpening after three months of operation, your
sharpening schedule should be every three months. It is highly recommended that a spare set of
knives be available for your disintegrator to eliminate down-time. Knives should not go beyond
50-100 hours of operation without knife sharpening.
Replacing Knives (See diagram on page 11)
1.
Be sure that the power cord has been unplugged from the wall receptacle.
2.
Remove the top cover screws to access the knives.
3.
Prior to removing or replacing the rotor knives, back off the bed knife adjusting screws.
Cover the edge of each knife with a heavy gauze tape such as scotch filament or cloth tape.
Remove the rotor knives first and be sure to remove all rotor and bed knives prior to
replacing any of the knives.
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4.
To remove the bed knives, remove the two bolts on the right and two bolts on the left
of the aluminum deflectors. Remove the three bed knife bolts from each bed knife.
Remove the Bed Knife Holder and finally the bed knife itself.
5.
Take the spare bed knife and insert it exactly the way the dull knife came out. Insert the
bed knife bolts and only hand tighten for the moment. Finally replace the rotor knives
and tighten with a torque wrench to 50 ft./lbs. Remove the tape covering the edges of
all knives and adjust the distance between the rotor knife and bed knife by manually
rotating the rotor in the reverse operating direction. Using the bed knife adjusting
screws will allow you to make slight adjustments to move the bed knife closer to the
rotor knives. The knife gap between the rotor and bed knives should be adjusted to
.001-inch clearance using a feeler gauge. Note: Tool kits are available from SEM.
6.
Before tightening the bed knives securely, determine that the knives are set properly by
manually rotating the rotor in the reversed operating direction to ensure that no rotor
knife touches the bed knives and that the proper gap has been established. Tightening one
bed knife at a time, torque the bed knife bolts to 45 ft./lbs. and re-check the gap of the bed
knife. If the gap is correct, move on to the last bed knife and repeat this step. If the gap is
incorrect loosen the bed knife bolts and readjust the bed knife again until the proper knife
gap is achieved.
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