Schmalz EVE-OG 25 User manual

Vacuum Pump EVE-OG 25-40, EVE-OG 63-100
Operating Instructions
Note
The Operating instructions were originally written in German. Store in a safe place for future reference. Subject
to technical changes without notice. No responsibility is taken for printing or other types of errors.
Published by
© J.SchmalzGmbH, 01/20
This document is protected by copyright. J.SchmalzGmbH retains the rights established thereby. Reproduction of
the contents, in full or in part, is only permitted within the limits of the legal provisions of copyright law. Any mod-
ifications to or abridgments of the document are prohibited without explicit written agreement from
J.SchmalzGmbH.
J. Schmalz GmbH · Johannes-Schmalz-Str. 1 · 72293 Glatten, Germany · T: [phone]
[email protected]
EN-US · 30.30.01.00002 · 02 · 01/20

Contents
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Contents
1 Important Information ...................................................................................................................................4
1.1 Note on Using this Document ............................................................................................................... 4
1.2 The technical documentation is part of the product ........................................................................... 4
1.3 Warnings in this document.................................................................................................................... 4
1.4 Symbol..................................................................................................................................................... 4
1.5 Type Plate ............................................................................................................................................... 5
2 Fundamental Safety Instructions...................................................................................................................5
2.1 Intended Use........................................................................................................................................... 5
2.2 Safety Instructions .................................................................................................................................. 5
2.3 Changes to the Vacuum Generator....................................................................................................... 6
2.4 Personnel qualification .......................................................................................................................... 6
3 Product Description ........................................................................................................................................7
3.1 Pump Design........................................................................................................................................... 7
3.2 Functional Principle................................................................................................................................ 7
3.3 Application Area .................................................................................................................................... 8
3.4 On/Off Switch ......................................................................................................................................... 8
4 Technical Data .................................................................................................................................................8
4.1 General Parameters................................................................................................................................ 8
4.2 Oil ............................................................................................................................................................ 9
5 Transport and Storage..................................................................................................................................10
5.1 Checking the Delivery .......................................................................................................................... 10
5.2 Transporting the Vacuum Pump ......................................................................................................... 10
5.3 Storage.................................................................................................................................................. 11
6 Installation.....................................................................................................................................................11
6.1 Installation Instructions........................................................................................................................ 11
6.2 Mounting .............................................................................................................................................. 12
6.3 Checking the oil level........................................................................................................................... 12
6.4 Filling with Oil ...................................................................................................................................... 13
6.5 Pneumatically Connecting the Vacuum Pump ................................................................................... 13
6.6 Electrical Connection............................................................................................................................ 15
6.6.1 Circuit diagram for single-phase motor ...................................................................................15
6.6.2 Circuit diagrams for three-phase motor ..................................................................................16
6.6.3 Checking the Direction of Rotation .........................................................................................16
6.6.4 Optional: Electrical Connection of Monitoring Systems ......................................................... 17
7 Operation ......................................................................................................................................................17
7.1 Safety Instructions ................................................................................................................................ 17
7.2 Version with Oil Return Valve ............................................................................................................. 18
7.3 Conveying Condensable Vapors .......................................................................................................... 18
8 Maintenance..................................................................................................................................................18
8.1 Safety Instructions ................................................................................................................................ 18
8.2 Maintenance Plan................................................................................................................................. 19
8.3 Oil and oil filter change ....................................................................................................................... 20

Contents
EN-US · 30.30.01.00002 · 02 · 01/20 3 / 28
8.4 Changing the Air-Oil Separators ......................................................................................................... 22
8.5 Cleaning the Pump............................................................................................................................... 23
9 Warranty........................................................................................................................................................23
10 Repair.............................................................................................................................................................23
11 Troubleshooting............................................................................................................................................23
11.1 Safety Instructions for Troubleshooting ............................................................................................. 23
11.2 Troubleshooting ................................................................................................................................... 24
12 Optional Accessories.....................................................................................................................................25
12.1 Gas ballast valve ................................................................................................................................... 25
12.2 Inlet Filter.............................................................................................................................................. 25
12.3 Level Switch .......................................................................................................................................... 25
13 Spare and Wearing Parts..............................................................................................................................26
14 Accessories ....................................................................................................................................................26
15 Taking the Product Out of Operation and Disposal...................................................................................26
16 EC Conformity ...............................................................................................................................................27
17 Declaration of Decontamination .................................................................................................................28

1 Important Information
1.1 Note on Using this Document
J.SchmalzGmbH is generally referred to as Schmalz in these Operating instructions.
These Operating instructions contain important notes and information about the different operating phases of the
product:
• Transport, storage, start of operations and decommissioning
• Safe operation, required maintenance, rectification of any faults
The Operating instructions describe the product at the time of delivery by Schmalz.
1.2 The technical documentation is part of the product
1. For problem-free and safe operation, follow the instructions in the documents.
2. Keep the technical documentation in close proximity to the product. The documentation must be accessible
to personnel at all times.
3. Pass on the technical documentation to subsequent users.
ðFailure to follow the instructions in these Operating instructions may result in life-threatening injuries!
ðSchmalz is not liable for damage or malfunctions that result from failure to heed these instructions.
If you still have questions after reading the technical documentation, contact Schmalz Service at:
www.schmalz.com/services
1.3 Warnings in this document
Warnings warn against hazards that may occur when handling the product. There are four levels of danger that
you can recognize by the signal word.
Signal word Meaning
DANGER Indicates a high-risk hazard which, if not avoided, will result in death or se-
rious injury.
WARNING Indicates a medium-risk hazard which, if not avoided, could result in death
or serious injury.
CAUTION Indicates a low-risk hazard which, if not avoided, could result in minor or
moderate injury.
NOTE Indicates a danger that leads to property damage.
1.4 Symbol
This symbol indicates useful and important information.
üThis symbol represents a prerequisite that must be met prior to an operational step.
4This symbol represents an action to be performed.
ðThis symbol represents the result of an action.
Actions that consist of more than one step are numbered:
1. First action to be performed.
2. Second action to be performed.
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1.5 Type Plate
The type plates (1) and (2) are permanently attached to the Vacuum pump and must always be clearly legible.
The type plate (1) contains the following data:
• Final pressure
• Information about oil
• CE label
• EAC label
The type plate (2) contains the following data:
• Part sales designation/type
• Article/part number
• Manufacturing date
• CE label
• QR code
1
2
Please specify all the information above when ordering replacement parts, making warranty claims or for any
other inquiries.
2 Fundamental Safety Instructions
2.1 Intended Use
The vacuum pump is built in accordance with the latest standards of technology and is delivered in a safe operat-
ing condition.
The vacuum pump from Schmalz is designed for the suction of air and other dry, non-aggressive, non-toxic, and
non-explosive gases.
Neutral gases in accordance with EN983 are approved as evacuation media. Neutral gases include air, nitrogen and
inert gases (e.g. argon, xenon and neon).
Conveying other media increases the thermal and/or mechanical load on the machine and must only be performed
in consultation with J. Schmalz.
The product is intended for industrial use.
The machine can be operated continuously at final pressure.
Intended use includes observing the technical data and the installation and operating instructions in this manual.
2.2 Safety Instructions
WARNING
Risk of fire and explosion caused by sparks
Serious injury!
4Do not use the product in environments where there is a risk of explosion.
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CAUTION
Vacuum close to the eye
Severe eye injury!
4Wear eye protection.
4Do not look into vacuum openings, e.g. suction cups.
WARNING
Extraction of hazardous media, liquids or bulk material
Personal injury or damage to property!
4Do not extract harmful media such as dust, oil mists, vapors, aerosols etc.
4Do not extract aggressive gases or media such as acids, acid fumes, bases, biocides, disinfectants
or detergents.
4Do not extract liquids or bulk materials, e.g. granulates.
2.3 Changes to the Vacuum Generator
Schmalz assumes no liability for consequences of modifications over which it has no control:
1. The vacuum generator must be operated only in its original condition as delivered.
2. Use only original spare parts from Schmalz.
3. The vacuum generator may be operated only in perfect condition.
2.4 Personnel qualification
Unqualified personnel cannot recognize dangers and are therefore exposed to higher risks!
1. Electrical work and installations may only be carried out by qualified electrical specialists.
2. Assembly and adjustment work may only be carried out by qualified personnel.
These operating instructions are intended for fitters who are trained in handling the product and who can operate
and install it.
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3 Product Description
3.1 Pump Design
3
12 8
10
67
5
4
9
11
12
13
3
1 Oil filter 2 Motor terminal box
3 Type plate 4 Oil separator
5 Oil trap 6 Suction connection
7 Exhaust air connection 8 Axial ventilator
9 Oil drain screw 10 Oil sight glass
11 Oil filler plug 12 Gas ballast valve
13 Eye bolt — —
3.2 Functional Principle
The vacuum pump functions according to the rotary vane principle.
The oil seals the gaps, lubricates the slides, and dissipates compression heat.
The oil filter cleans the circulating oil.
Air-oil separators then separate the oil from the discharged gas.
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3.3 Application Area
Version with float valve (standard):
The machine is suitable for continuous operation.
Version with oil return valve:
During operation, oil collects at the bottom of the upper chamber of the oil separator and cannot flow into the
lower chamber during machine operation.
After no more than 10 hours of continuous operation, or if the pressure difference between the vacuum and pres-
sure side is high after a shorter period of time, the machine must be switched off for at least 15 minutes to allow
the oil to flow from the upper chamber of the oil separator into the lower chamber.
3.4 On/Off Switch
The vacuum pump is supplied without an on/off switch. The vacuum pump must be controlled at the site of instal-
lation.
The vacuum pump can optionally be equipped with a starter unit or a frequency-controlled drive.
4 Technical Data
4.1 General Parameters
Oil-lubricated rotary vane vacuum pump:
Parameter Unit EVE-OG 25 EVE-OG 40
Nominal suction rate (50 Hz / 60 Hz) m³/h 25 / 30 40 / 48
Final pressure
(without gas ballast valve)
hPa (mbar) abs. 0.1 to 0.5 » Refer to the type plate
Final pressure
(with gas ballast valve)
hPa (mbar) abs. 0.5 to 1.5
Motor rated speed (50 Hz / 60 Hz) rpm 1500 / 1800
Motor rated power (50 Hz / 60 Hz) kW 1.0 / 1.2 1.4 / 1.7
Power consumption at 100 mbar (50 Hz / 60 Hz) kWh 0.8 / 0.9 1.1 / 1.2
Power consumption at final pressure (50 Hz / 60 Hz) kWh 0.5 / 0.6 0.6 / 0.7
Sound pressure level (EN ISO 2151) (50 Hz / 60 Hz) dB(A) 60 / 63 63 / 66
Max. water vapor compatibility
(with gas ballast valve)
hPa (mbar) 40
Water vapor capacity
(with gas ballast valve)
kg/h 0.9 1.1
Ambient temperature range °C See oil
Ambient pressure — Atmospheric pressure
Oil quantity l 1.0
Approximate weight kg 36 42
Parameter Unit EVE-OG 63 EVE-OG 100
Nominal suction rate (50 Hz / 60 Hz) m³/h 63 / 76 100 / 120
Final pressure
(without gas ballast valve)
hPa (mbar) abs. 0.1 to 0.5 » Refer to the type plate
Final pressure
(with gas ballast valve)
hPa (mbar) abs. 0.5 to 1.5
Motor rated speed (50 Hz / 60 Hz) rpm 1500 / 1800
Motor rated power (50 Hz / 60 Hz) kW 2.0 / 2.4 2.7 / 3.4
Power consumption at 100 mbar (50 Hz / 60 Hz) kWh 1.3 / 1.5 1.9 / 2.4
Power consumption at final pressure (50 Hz / 60 Hz) kWh 0.7 / 0.8 1.2 / 1.5
Sound pressure level (EN ISO 2151) (50 Hz / 60 Hz) dB(A) 64 / 67 65 / 68
Max. water vapor compatibility
(with gas ballast valve)
hPa (mbar) 40
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Parameter Unit EVE-OG 63 EVE-OG 100
Water vapor capacity
(with gas ballast valve)
kg/h 1.8 2.8
Ambient temperature range °C See oil
Ambient pressure — Atmospheric pressure
Oil quantity l 2.0
Approximate weight kg 55 73
GBV = gas ballast valve
For exact electrical and pneumatic data, refer to the type plate and/or data sheet.
4.2 Oil
Description Value
Designation OEL-EVE- ….ANDEROL 555
ISO-VG 100
Basis Synthetic diester
Ambient temperature range [°C] 5 to 40
Part no. for 1 L packaging 27.02.01.00055
Part no. for 5 L packaging 27.02.01.00056
The type plate displays the type of oil used to fill the vacuum pump.
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5 Transport and Storage
5.1 Checking the Delivery
The scope of delivery can be found in the order confirmation. The weights and dimensions are listed in the delivery
notes.
1. Compare the entire delivery with the supplied delivery notes to make sure nothing is missing.
2. Damage caused by defective packaging or occurring in transit must be reported immediately to the carrier
and J.SchmalzGmbH.
5.2 Transporting the Vacuum Pump
üWear protective work shoes and gloves.
1. Secure the load according to national regulations before every transport operation.
2. Ensure that the hoists and slings used have the necessary specifications.
3. Ensure that any personnel involved in transporting with lifting devices or industrial trucks are authorized and
qualified to do so.
WARNING
Suspended load
Risk of serious injury!
4Do not walk, stand or work under suspended loads.
NOTE
Tilting a vacuum pump filled with oil
Tilting a vacuum pump filled with oil can cause large quantities of oil to enter the cylinder. The slides
will be damaged if the vacuum pump is started while there is an excessive amount of oil in the cylin-
der. This will destroy the vacuum pump.
4Before transporting, always drain the oil or transport the vacuum pump in a horizontal position.
Refer to the type plate for the weight
üThe eye bolt must be in perfect condition, completely screwed in, and hand-tightened.
4Check the vacuum pump for transport damage.
If the vacuum pump is mounted to a base plate, proceed as follows:
4Remove the mounting.
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WARNING
Lifting the vacuum pump from the eye bolt of the motor
Risk of serious injury!
4Do not lift the vacuum pump by the eye bolt of the motor, but rather as illustrated above.
Before commissioning, check and top up the oil in the pump according to the indication on the oil level indicator.
Commissioning the vacuum pump without sufficient oil will destroy it.
5.3 Storage
4Seal all openings with adhesive tape or reuse the caps included in delivery.
Proceed as follows if storing for longer than 3 months:
1. Wrap the vacuum pump with anti-corrosive plastic film.
2. Store the vacuum pump in a protected, dry and dust-free room, preferably in its original packaging and at a
temperature between 0 and 40° C.
6 Installation
6.1 Installation Instructions
CAUTION
Improper installation or maintenance
Personal injury or damage to property
4Prior to installation and before maintenance work, the vacuum generator must be disconnected
from the power supply and secured against unauthorized restart!
NOTE
Using the Vacuum pump outside the permissible installation conditions.
Danger of premature failure of the machine and loss of efficiency.
4The installation conditions must comply with all specifications.
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For safe installation, the following instructions must be observed:
üThe machine must not be in a potentially explosive environment.
üThe ambient conditions must comply with the specifications contained in the technical data.
üThe installation site must be ventilated to ensure sufficient cooling of the machine.
üThe oil sight glass must be visible at all times.
üSufficient space for maintenance work must be provided.
1. Ensure that the environmental conditions comply with the motor protection class and electrical devices.
2. Ensure that the ventilation openings (inlets and outlets) are not covered and that the cooling air can flow
freely.
3. Check the oil level.
4. Ensure that all covers, guards, etc. are attached.
5. Use only the connectors, mounting holes and attachment materials that have been provided.
6. Firmly connect and secure pneumatic and electrical line connections to the vacuum generator.
If the vacuum pump is installed higher than 1,000 meters above sea level:
4Contact a Schmalz representative. The motor power must be limited or the ambient temperature must be re-
stricted.
6.2 Mounting
Before mounting the pump at the installation location, bring it to the ambient temperature.
1. Ensure that the machine is set up and attached horizontally. A deviation of 1° in any direction can be toler-
ated.
2. Remove all protective caps before installation.
Tension or pressure must not be applied to the connections via the connection lines. If necessary, use flexible con-
nections.
The line cross-section of the connection lines must have at least the same cross-section as the machine connections
over the entire length.
If the connection lines are very long, it is advisable to use larger line cross-sections to avoid loss of efficiency. Con-
tact a Schmalz representative.
6.3 Checking the oil level
1. Switch off the vacuum pump.
2. After switching off the vacuum pump, wait 1
minute before checking the oil level.
MAX
MIN
MAX
MIN
MAX
MIN
3. If necessary, top up with oil as described in (> See
ch. Filling with Oil,Page 13).
12 / 28 EN-US · 30.30.01.00002 · 02 · 01/20

6.4 Filling with Oil
NOTE
Use of unsuitable oil or too little oil.
Danger of premature failure and damage to the vacuum pump.
4Only use oils approved and recommended by Schmalz.
4Maintain the oil level between the MIN and MAX marks.
MAX
MIN
Check the oil level
O-ring
6.5 Pneumatically Connecting the Vacuum Pump
CAUTION
The discharged gas contains minimal amounts of oil.
Health risk
4If the air is directed into rooms where people are present, ensure adequate ventilation.
NOTE
Ingress of foreign bodies or liquids.
Danger of damage to the machine.
4If the gas that is sucked in contains dust or other solids, install a suitable filter (≤ 5microns) in
front of the inlet of the machine.
Use only hoses that are designed for the maximum permitted pump operating pressure (see the chapter “Technical
Data”). Use only hoses that have sufficient chemical resistance to the gases to be conveyed.
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Connecting the suction connection:
WARNING
A powerful vacuum flow creates a strong suction effect
Risk of injury to eyes or other body parts
4Wear eye protection.
4Do not look or reach into any vacuum vent.
4When the vacuum generator is switched on, maintain a safe distance from the vacuum vent.
12
1. Remove the protective plug.
2. Connect the suction line to the suction connection (1). The connection size is: – G1 1/4"
3. Check that the hoses and junctions are connected correctly and tightly.
4. Check that the installation is sealed tight.
Connecting the exhaust air connection:
1. Remove the protective plug.
2. Connect the exhaust air line to the exhaust air connection (2):
The connection size is:
— 1x G1 1/4" ► For 25/40 variants
— 2x G1 1/4" ► For 63/100 variants
3. Check that the hoses and junctions are connected correctly and tightly.
4. Check that the installation is sealed tight.
The connection dimensions may vary for specific orders.
4Ensure that the discharged gas can flow out freely. Never close the exhaust air line, throttle it or use it as a
source of compressed air.
If the air that was sucked in is not discharged into the environment around the immediate vicinity of the vacuum
pump, observe the following:
4Lay the exhaust air line sloping down to the vacuum pump or install a liquid condenser or a condensation col-
lector pipe with a drain valve to prevent liquid from running back into the machine.
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6.6 Electrical Connection
DANGER
Electrocution by live components or wires
Serious injury or death!
4Electrical installation work may only be carried out by qualified personnel.
4Make sure that the electrical components are not live before installation, maintenance and
troubleshooting.
4Switch off the mains switch and secure against unauthorized restart.
The electrical installation must comply with applicable national and international standards, guidelines and regula-
tions.
üThe power supply for the motor must comply with the specifications on the motor type plate.
1. Install a lockable disconnecting switch on the power supply so that the vacuum pump can be completely dis-
connected during maintenance operations.
2. Install overload protection for the motor according to EN 60204-1. (Schmalz recommends installing a D-curve
circuit breaker).
3. Ensure that the vacuum pump motor is not affected by electrical or electromagnetic pulses from the power
supply.
4. Connect the protective conductor.
5. Connect the motor to the power supply.
NOTE
Incorrect electrical connection of the vacuum pump
Danger of motor damage.
4The following circuit diagrams show the typical wirings. Check that the motor terminal box con-
tains instructions for the cabling/circuit diagrams.
6.6.1 Circuit diagram for single-phase motor
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6.6.2 Circuit diagrams for three-phase motor
Delta connection (low voltage): Star connection (high voltage):
Double star connection, multi-voltage motor with 9
pins (low voltage):
Star connection, multi-voltage motor with 9 pins (high
voltage):
6.6.3 Checking the Direction of Rotation
NOTE
Electric motor running in the wrong direction
Damage to the motor
4Reverse the rotational direction by reversing the polarity in the supply line.
For three-phase A.C. motors, check the direction of rotation of the motor as follows:
1. Switch on the vacuum pump for a fraction of a sec-
ond.
2. Watch the motor’s fan blade. It must rotate in the
direction shown by the arrow on the motor hous-
ing.
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3. The device is delivered with a clockwise rotation
field. If the direction of rotation is incorrect, switch
the unit off immediately and reverse the connec-
tion in the supply line.
4. Check the direction of rotation once again.
Damage or destruction of the motor resulting from operation with the incorrect rotational direction is
not covered by the warranty.
6.6.4 Optional: Electrical Connection of Monitoring Systems
To prevent possible false alarms, Schmalz recommends that a delay of at least 20 seconds be config-
ured in the control system.
Circuit diagram for level switch (optional)
Electrical data:
U = max. 250 V
Imax = 1.0 A
P = 20 W
IP65
Switching element function:
Reed contact
Contact: 2x normally open (NO)
Switching point:
S1trip ► pin 1 + 2 ► max. level
S1trip ► pin 3 + 4 ► max. level
1 = white
2 = white
3 = brown
4 = brown
7 Operation
7.1 Safety Instructions
CAUTION
Touching hot surfaces
Touching hot surfaces may cause injury from burns.
4Wear work gloves.
4Do not touch components during operation.
4Allow the components to cool down before commencing work on the product.
CAUTION
Noise pollution caused by machine during operation
Danger of hearing damage
4If you spend longer periods of time in the immediate vicinity of the machine when it is not
soundproofed: Wear ear protectors.
NOTE
Use of unsuitable oil or too little oil.
Danger of premature failure and damage to the vacuum pump.
4Only use oils approved and recommended by Schmalz.
4Maintain the oil level between the MIN and MAX marks.
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4Switch on the machine.
The permitted maximum number of starts of 12 times per hour must not be exceeded. The individual starts must be
distributed over the period of one hour.
4Check the oil level after a few minutes of machine operation and top up oil if necessary.
Once the machine is operating under normal conditions, proceed as follows:
4Measure the strength of the motor current and record it for reference purposes for future maintenance and
troubleshooting.
7.2 Version with Oil Return Valve
During operation, oil collects at the bottom of the upper chamber of the oil separator and cannot flow into the
lower chamber during machine operation.
After 10 hours of continuous operation of the vacuum pump, and if there is a high pressure difference between
the vacuum and the overpressure side, proceed as follows:
4Switch off the machine for at least 15 minutes.
ðThis allows the oil to flow from the upper chamber of the oil separator to the lower chamber.
7.3 Conveying Condensable Vapors
A certain amount of water vapor in the gas flow is tolerated. Contact Schmalz for information on how to convey
other vapors.
When conveying condensable vapors, observe the following:
START
Close the
stop valve*
and open the
gas ballast
valve**
Preheat the
machine 30 minutes
Open the stop
valve and
continue the
procedure
Close the stop
valve
30 minutes
Close the gas
ballast valve
END
*Not included in the scope of delivery.
**May be an optional piece of equipment for some products
8 Maintenance
8.1 Safety Instructions
WARNING
Machine contaminated with hazardous material.
Danger of poisoning. There is a risk of infection.
4Wear appropriate personal safety equipment.
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CAUTION
Touching hot surfaces
Touching hot surfaces may cause injury from burns.
4Wear work gloves.
4Do not touch components during operation.
4Allow the components to cool down before commencing work on the product.
CAUTION
Failure to properly maintain the machine.
Risk of injury!
Risk of premature machine failure and loss of efficiency.
4Observe the maintenance intervals or contact your Schmalz representative. He or she will be
glad to help you.
1. Switch off and lock the vacuum pump to prevent it from accidentally switching on.
2. Vent all connected lines to the atmospheric pressure.
3. If necessary, disconnect all connections.
8.2 Maintenance Plan
The maintenance intervals are very dependent on the individual operating conditions. The intervals provided be-
low should be considered guidelines and individually shortened or extended.
It may be necessary to significantly shorten the maintenance intervals, particularly in the case of a heavy workload,
high dust exposure in the environment or the process gas, or other contamination, or the ingress of process mate-
rial.
Maintenance work
Interval
Normal use Heavy workload
4Check the oil level. Daily
4Check the vacuum pump for leaking oil. If there is a leak, have
the vacuum pump repaired by Schmalz.
If a suction filter is installed, observe the following:
4Check the suction filter insert and replace it if necessary.
Monthly
4Replace the oil, oil filter, and air-oil separators and exhaust gas
filter.
After max. 4,000
hours or 1 year at
the latest
After max. 2,000
hours or 6 months
at the latest
4Clean dust and contamination from the vacuum pump.
If a gas ballast valve is installed, observe the following:
4Clean the gas ballast valve filter.
If the vacuum pump is equipped with an air-oil heat exchanger:
4Check and/or clean the air-oil heat exchanger.
Every 6 months
4Perform a general overhaul of the vacuum pump (contact
Schmalz).
Every 5 years
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8.3 Oil and oil filter change
NOTE
Use of unsuitable oil or too little oil.
Danger of premature failure and damage to the vacuum pump.
4Only use oils approved and recommended by Schmalz.
4Maintain the oil level between the MIN and MAX marks.
Drip pan
O-ring
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