Schmid & Wezel EFA 202 User manual

Schmid & Wezel Ausführung / Execution
75433 Maulbronn, Germany 05.2007
Betriebsanleitung / Operating instructions
Wartungsanleitung/ Maintenance instructions
Ersatzteilliste/ Spare part list
EFA Vacuum Unit
Type EFA 202-204
Wichtige Informationen:
Diese Anleitung unbedingt dem Bedienpersonal aushändigen!
Important Information:
Please forward these operating instructions to your operating
personnel!

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CONTENTS
1. Use, scope of supply, accessories ............................................................................................... 2
1.1 Symbols in these operating instructions .........................................................................................2
1.2 Intended use...................................................................................................................................2
1.3 Scope of supply ..............................................................................................................................2
2. Safety information.......................................................................................................................... 2
2.1 General safety information .............................................................................................................2
2.2 Conduct at the workplace...............................................................................................................3
3. Functional description and operation ......................................................................................... 3
3.1 Functional description.....................................................................................................................3
3.2 Operation........................................................................................................................................4
4. Assembly .......................................................................................................................................... 4
4.1 Transport ........................................................................................................................................4
4.2 Set up .............................................................................................................................................4
5. Cleaning and maintenance ........................................................................................................... 5
5.1 Receptacle ......................................................................................................................................5
5.2 Air filter ...........................................................................................................................................5
5.3 Refilling oil ......................................................................................................................................5
5.4 Changing oil....................................................................................................................................5
5.5 Fan cover ........................................................................................................................................6
5.6 Vacuum...........................................................................................................................................6
5.7 Troubleshooting..............................................................................................................................7
6. Returning old devices .................................................................................................................... 7
A. Anhang / Appendix......................................................................................................................... 8
A.1 Technische Daten / Technical Data ................................................................................................8
A.2 Liste der Ersatz- und Verschleißteile / Spare part List....................................................................8
A.3 Schaltplan / Connexion Diagram ....................................................................................................9
B. Konformitätserklärung / Declaration of Conformity ............................................................. 10

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1. Use, scope of supply, accessories
Information that must be read!
This manual is intended for the machine operator.
Keep this manual with the vacuum unit. It must be
ready at hand at all times
The vacuum unit may only be operated:
■In a technically perfect state, according to the
intended use and when the operator is aware of
safety aspects and dangers.
■With all the safety devices attached
■In accordance with the safety precautions
■After the operating personnel have read and un-
derstand this manual, particularly Chapter 2 “Safe-
ty information (page 2) and Chapter 3 “Functional
description and operation” (page 3).
Only in this way can incorrect operation be avoided
and hazard situations correctly assessed.
1.1 Symbols used in this manual
Hazard symbol:
This symbol is used for situations
where extreme caution is advised.
Non-compliance results in an immi-
nent risk of injury for the operating
personnel and/or third parties. In
addition the machine may get dam-
aged.
Information symbol:
Texts marked with this symbol contain
important information and useful tips.
1.2 Intended use
1.2.1 Application area
The vacuum unit is built according to the state of the
art and recognized safety rules.
The vacuum unit is only used to extract animal excre-
ment using a vacuum. Any other or further use is not
considered the intended use. The manufacturer cannot
assume liability for any resulting damages. The opera-
tor bears all risk. Intended use also includes observing
the operating instructions and complying with the
inspection and maintenance conditions.
For all other applications, the risk of injury and/or
increased wear must be noted. In the event of non-
compliance, the liability shall be borne by the user
alone.
1.2.1 Residual risks
However when using the unit, danger to life and limb
of the user or third parties or damage to the system or
other material assets can arise when:
■It is not used for its intended purpose
■It is incorrectly modified or converted
■The safety information is not observed
1.3 Scope of supply
■EFA Vacuum Unit 202 –203
■Operating manual
2. Safety instructions
Always observe the following safety measures
when using the vacuum unit.
2.1 Symbols used in this manual
■For operation, it is necessary that the operating
personnel have adequate knowledge on working
with the vacuum unit.
■Make sure that the machine is always kept in a
safe operating condition and immediately replace
faulty parts that could impair operational safety.
■Installation, maintenance and repair work may only
be carried out by authorised and qualified person-
nel.
■Only use EFA original accessories. Use of other
tools or accessories may result in injury to yourself.
Use of non-original accessories will void the war-
ranty.
■Technical modifications or changes to the machine
are not permitted under any circumstances and will
relieve S&W of any warranty and liability.
■The system may only be operated when all safety
and protective devices are present and function
perfectly.
■The limit values for pressures and temperatures
must always be indicated and may not be violated.
■The warning and safety instructions on the ma-
chine must be followed and always kept in easily
legible condition.

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2.2 Conduct at the workplace
1. Keep your workplace tidy and in good working
condition. Untidiness can lead to accidents.
2. Take into account environmental influences. Ensure
good lighting (min. 500 lux).
3. Always switch the unit off when not in use.
4. Work clothing: Do not wear any loose clothing or
jewelery - they could be caught by moving parts.
Wear sturdy shoes during your work. Always wear
a hairnet!
5. Depending on the noise level while operating the
machine, wear the prescribed personal hearing
protection.
6. Avoid abnormal body postures. Ensure safe footing
and keep your balance at all times.
7. When working above body height, use suitable,
safety-compliant climbing aids and work platforms.
Do not use machine parts as climbing aids.
8. Service your tools with care.
9. Do not leave wrenches on the machine. Check that
all keys are removed before switching on.
3. Functional description and oper-
ation
Only use the vacuum unit to extract
animal excrement.
3.1 Functional description
1 Air filter
2 Vacuum pump
3 Oil filler plug
4 Oil sight glass
5 Oil drain plug
6 Fill level indicator light
7 Switch box
8 Main switch
9 Suction connection
10 Receptacle
11 Socket slide valve
12 Mains connection
13 Drain plug
14 Suction filter
15 Vacuum regulating
valve
16 Vacuum pressure gage
The vacuum pump (2) generates a vacuum in the
receptacle (10) and in the suction lines directly con-
nected to it. The fluid flows due to the pressure equal-
ization via the suction lines in the receptacle. There is
a floating switch in the receptacle (10) itself. It switch-
es the vacuum pump (2) off when the fill level has
reached its maximum value. A suction filter (14) and
an air filter (1) are preconnected to the vacuum pump
(2). This prevents the ingress of fluid or dirt particles
in the vacuum pump (2). A vacuum regulating pump
(15) is used to adjust the vacuum. A vacuum pressure
gage (16) above the vacuum pump displays the pres-

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sure in the receptacle. There is socket slide valve (11)
at the base of the receptacle (10) that can be used to
drain the content.
3.2 Operation
Only use the vacuum unit to extract
animal excrement.
3.2.1 Daily checks
Check the air filter (1) for contamination and the oil
level of the vacuum pump (2) at least once a day.
The work steps are explained in the following sections
5.2. and 5.3.
3.2.2 Switching on
Set the main switch (8) to 1.
3.2.3 Switching off
Set the main switch (8) to 0.
3.2.4 Draining
Drain the receptacle (10) when the maximum fill level
is reached and before any lengthy downtime. The
maximum fill level is displayed by the fill level indicator
light (6) on the switch box (7).
Draining the receptacle:
1. Set the main switch (8) to 0.
2. Open the socket slide valve (11) at the base of the
receptacle (10).
3. After draining, close the socket slide valve (11).
Draining the suction filter:
1. Unscrew the drain plug (13) below the suction filter
(14).
2. Drain the water with remnants of dirt out of the
suction filter (14).
3. Screw on the drain plug (13).
All cleaning agents for stainless steel
devices are suitable for cleaning the
receptacle.
4. Assembly
4.1 Transport
It is strictly prohibited for persons
to stay under a lifted load! Falling
loads can cause serious injuries.
1. Only transport the vacuum unit upright on a pallet.
2. Only use suitable means of transportation and
lifting gear with a sufficient load capacity.
3. Only use stable loading ramps that can withstand
the load.
4. Protect the vacuum unit from slipping and tipping.
4.2 Set-up
The mains connection must comply
with the local power supply compa-
ny regulations and be protected
with a residual current circuit
breaker (residual current < 0.03 A)
and fuses (16 A, slow-blow).
Do not place the unit on its side.
The suction connection (9) is designed as a socket
with a 1” internal thread. A 1/2” hose nipple is
screwed into the suction connection (9).
Set up and install as follows:
1. Place the vacuum unit on a flat, stable floor.
2. Anchor the vacuum unit in the floor using hexagon
screws (min. diameter 8mm).
3. Establish a hose connection between the unit or
the system where fluid is to be extracted and the
suction connection (9). When doing so, fasten a
hose of sufficient length to the hose nipple using
hose clamps.
4. Assign a competent person to establish the electri-
cal connection. The socket slide valve (11) under
the receptacle has a 2” internal thread where a
drain line can be connected.
Always lay the drain line at an in-
cline to the vacuum unit.
5. Cleaning and maintenance
Disconnect the power from the vac-
uum unit before performing mainte-
nance tasks on the vacuum pump.
Vent the vacuum pump to the ambi-
ent pressure.

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5.1 Receptacle
Flush the receptacle (10) with spray water at least
once a month to remove fixed remnants of dirt. To do
this, proceed as follows:
1. Set the main switch (8) to 0.
2. Open the socket slide valve (11) and drain the
receptacle (10).
3. Close the socket slide valve (11) when the recepta-
cle (10) is empty.
4. Remove the base plate from the receptacle (10).
To do this, remove the fastening nuts at the base
plate.
5. Spray out the receptacle (10) from the bottom.
All cleaning agents for stainless steel
devices are suitable for cleaning the
receptacle.
5.2 Air filter
Check the filter insert in the air filter (1) at regular
intervals (at least every three months) as follows:
1. Open the retaining clips on the air filter (1) and
remove the cover.
2. Check the air filter (1) and replace it if necessary.
3. Put the cover on the air filter (1) again and fasten
it with the retaining clips.
5.3 Refilling oil
Only use special vacuum pump oil ac-
cording to DIN 51506, lubricating oil
group VC. The exact specification can be
found in the table or enclosed operating
instructions for the vacuum pump.
Refill with oil if the oil level is below the MIN marking
on the sight glass. To do this, proceed as follows:
1. Open the oil filler plug (3).
2. Refill with oil until the oil level reaches the MAX
marking on the oil sight glass (4).
3. Close the oil filler plug (3).
5.4 Changing oil
Change oil:
■After the first 100 operating hours.
■Additionally after every 500 ... 2000 operating
hours.
Dispose of the used oil according to
applicable regulations.
1. Unscrew the oil drain plug (5) at the vacuum pump
(2) and drain the used oil into a collecting tray.
2. Screw in the oil drain plug (5).
3. Unscrew the oil drain plug (3) on the vacuum
pump (2) and fill the new vacuum pump oil.
4. Screw in the oil filler plug (3).
Recommended types
of oil
Ambient temperature
VM 032
< 0 °C
VM 068
0 ... 12 °C
VM 100
12 ... 30 °C
VS 100
> 30 °C
The vacuum unit contains approx. 1 liter of oil.
5.5 Fan cover
Check the fan covers of the vacuum pump for contam-
ination. Blow out the fan covers with compressed air if
necessary.
Additional maintenance information can
be found in the enclosed operating in-
structions of the vacuum pump.

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5.6 Vacuum
The negative pressure may not ex-
ceed 75 kPa! Higher negative pres-
sures can damage the receptacle.
Set the negative pressure using the vacuum regulating
valve (15) as follows:
1. Connect the socket slide valve (11) at the base of
the receptacle (10) and the hose line to the suction
connection (9).
2. Remove the protective cap (1, figure 2) of the
vacuum regulating valve (figure 2).
3. Remove the lock nut underneath it.
4. Reset the negative pressure using the knurled
screw. When doing so, check the negative pressure
at the vacuum pressure gage (16).
5. Retighten the lock nut above the knurled screw.
Figure 2:
Vacuum regulating
pump
1 Protective cap
2 Control air filter
3 Valve housing
4 Air filter
5 Connecting piece

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5.7 Troubleshooting
Malfunction
Possible cause
Remedy
■Vacuum unit does not run
■Fill level indicator light is off
Power supply interrupted.
Check the mains connection and
fuses.
Notify customer service if none of
the above faults are present.
Motor protection triggered due to
vacuum pump (2) overload.
Open the switch box (7) and check
whether the motor protection
switch has triggered.
Suction filter (14) clogged and air
filter (1) wet. -> Vacuum pump has
sucked in water.
Notify customer service.
Suction filter (14) clogged
1. Drain the suction filter (14) (sec-
tion 3.2).
2. Press the “Reset” key on the
motor protection switch.
■Vacuum unit does not run
■Fill level indicator is on
Receptacle (10) is full.
Drain the receptacle (10) (section
3.2).
■Low output
Intake filter blocked
Clean/replace intake filter
■Negative pressure too high
Suction filter (14) clogged.
Drain the suction filter (14) (section
3.2).
Regulating valve (15) incorrectly
set.
Reset the negative pressure (sec-
tion 5.6).
■Negative pressure too low
Socket slide valve (11) open or
incorrectly closed.
Close the socket slide valve (11).
Hose line at suction connection (9)
leaky.
Check the hose line and the devices
connected to it. Eliminate leakages.
Replace the leaky parts if neces-
sary.
Regulating valve (15) incorrectly
set.
Reset the negative pressure (sec-
tion 5.6).
Receptacle (10) or other parts of
the vacuum unit leaky.
Faulty vacuum pump (2).
Notify customer service.
6. Returning old devices
Return your waste electrical equipment to our head office.

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A. Anhang / Appendix
A.1 Technische Daten / Technical Data
EFA SM 3
Voltage
3 x 400 V /50 Hz / N / PE
Connection current
3.2 A
Rated power
0.75 kW
Noise level
62 dB(A)
Flow rate at 70 kPA negative pressure
100 l/min
Speed
1500 rpm
Water vapor capacity
0.9 l/h at 40 mbar
Contents of the receptacle
125 l
A.2 Liste der Ersatz- und Verschleißteile / Spare part List
EFA SM 3
Fig. No.
Pos
Stück
Pcs.
Bezeichnung
Designation
Best.-Nr.
Order-No.
Vacuum unit for EFA 200, 202,
203 and 204
001606877
1
1
Vacuum master
001 606 901
2
1
Vacuum filter
001 606 902
3
1
Air filter, complete
001 606 903
4
1
Filter cartridge
001 606 904
5
1
Oil filter
001 606 905
6
1
Main switch
001 606 906
7
1
Pvacuum pressure gage
001 606 907
8
1
Fill level indicator light
001 606 908
9
1
Switch box
001 606 909
10
1
Receptacle
001 606 910
11
1
Socket slide valve
001 606 911
12
1
Branch piece (1-part)
001 606 912
13
1
Branch piece (2-part)
001 606 913
14
1
Vacuum pump, complete
001 606 914
15
1
Relay
001 606 915
16
1
Base for relay
001 606 916
17
1
Vacuum regulating pump
001 606 917
18
1
Switch
001 606 919
19
1
Protective hood
001 606 933
20

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A.3 Schaltplan / Connexion Diagram