Instruction manual
SECO

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Dry-Running Rotary Vane Vacuum Pumps and Compressors
SV/SD 1100 C

0870108458/-A0002_en / Original instructions / Modifications reserved

08/07/2021

Table of Contents

Introduction

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product description . . . . . . . . . . . . . . . . . . . . . . . . . 3
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Principle of operation . . . . . . . . . . . . . . . . . . . . . . . 3
Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operationnal Options/ Use of Optionally Available Equipment . . 4
On/ Off switch . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Sound Emissions . . . . . . . . . . . . . . . . . . . . . . . . 4
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Short-term Storage . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation and Commissioning . . . . . . . . . . . . . . . . . . 5
Installation prerequisites . . . . . . . . . . . . . . . . . . . . . 5
Installation Position and Space . . . . . . . . . . . . . . . . . 5
Suction Connection . . . . . . . . . . . . . . . . . . . . . . 5
Discharge connection . . . . . . . . . . . . . . . . . . . . . 5
Electrical Connection / Controls . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical connection . . . . . . . . . . . . . . . . . . . . . . 6
SV/SD 1100 C . . . . . . . . . . . . . . . . . . . . . . . . . 6
Notes on Operation . . . . . . . . . . . . . . . . . . . . . . . 7
Application. . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . 8
Every 6 Months: . . . . . . . . . . . . . . . . . . . . . . . 8
Every 100 - 500 Operating hours . . . . . . . . . . . . . . 8
Every 1000 Operating hours. . . . . . . . . . . . . . . . . 8
Every 1000 - 2000 Operating hours . . . . . . . . . . . . . 8
Inlet filter and pressure filter (SD). . . . . . . . . . . . . . . . . 8
Vanes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Removal from Service. . . . . . . . . . . . . . . . . . . . . . . 8
Temporary Removal from Service. . . . . . . . . . . . . . . . 8
Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . 8
Dismantling and Disposal . . . . . . . . . . . . . . . . . . . . 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Gasket kit . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Full service kit . . . . . . . . . . . . . . . . . . . . . . . . . 14
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . 17
UK Declaration of Conformity . . . . . . . . . . . . . . . . . . . 18

Congratulations on your purchase of this Busch vacuum pump.
Through careful observation of the field’s requirements, innovation andcontinuous development, Busch delivers modern vacuum and pressure
solutions worldwide.

Introduction
Page 2

These operating instructions contain information on

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product description,
safety,transport,
storage,installation and commissioning
maintenance,
overhaul,troubleshootingof the vacuum pump.
For the purpose of these instructions, “handling” the vacuum systemmeans the transport, storage, installation, commissioning, influence on
operating conditions, maintenance, troubleshooting and overhaul ofthe vacuum system.
Prior to handling the vacuum system, these operating instructions
must be read and understood. If anything remains to be clarified,please contact your Busch representative!
Keep these operating instructions and, if applicable, any other relevant operating instructions available and accessible on site.

DA

VRE

IN

DV

OUT

CV

IN Suction connection
OUT Gas discharge
VRE Vacuum relief valve (SV series only)
DV Discharge silencer valve (SV series
only)
CV CoverDA Arrow label
IF Inlet filter
VA Vanes
RT Rotor
IDF Pressure filter
PRV Pressure relief valve (SD uniquement)

IDF
PRV

VRE
IN

OUT

VA
IF
RT

Product description
Use
This vacuum pump is intended for–This vacuum pump is a dry running pump.
Do not lubricate the vacuum pump with oil or grease.

the suction (SV) or the discharge (SD)

Principle of operationof–

CAUTION

air and other dry, non-aggressive, non-toxic and non-explosive gases.

Conveying media with a higher density than air leads to an increased
thermal and mechanical load on the vacuum pump and is permissible
only after prior consultation with Busch.
The vacuum pump is intended for placement in a potentially non-explosive environment.
Max. permissible number of starts per hour: 12.
The vacuum pump is thermally suitable for continuous operation.
The vacuum pump is ultimate pressure proof.

The vacuum pump works according to the rotating vane principle.
A eccentric rotor (RT) rotates in the cylinder. The centrifugal force ofthe rotation pushes the vanes (VA), which are sliding in slots in therotor, to-wards the wall of the cylinder. The vanes separate the sickleshaped space between rotor and cylinder into different chambers.
When the chambers are connected with the inlet channel, gas is drawn
in, com-pressed by the next rotation and then discharged.
The compression is done without the use of any kind of external lubricant for lubrication. The drawn gases go through an integrated finemesh inlet filter (IF).
The efficient fan enables successful removal of heat from the motor
and the pump cover.

Product description
Page 3

Versions
WARNING

Two versions of the SECO rotary vane vacuum pumps are available :u Model SV
For vacuum applications down to an ultimate pressure of 100
hPa.

Disregard of this safety note may lead to accidents with fatal or serious injuries.

u Model SD
For overpressure duties up to 1500 hPa (2500 hPa abs.).

Cooling
The vacuum pump is cooled by–––

the ambient air around the vacuum pump
the air flow from the drive motor fan
an air cooling coil

Operationnal Options/ Use of
Optionally Available Equipment––––

Air filter to be fitted in series to the integral inlet filter when air
with a higher content of dust is being drawn.
Vacuum relief valve to control inlet pressure when pump is used on
vacuum duties (SV series only).
Pressure relief valve to control pressure when pump is used on
overpressure duties (SD series only).
A non-return valve, fitted to either the suction or the dischargeline, protects the system against ingress of air or depressurization,
should the pump stop for any reason. The installation of non-return valves is recommended if lines of more than 5 meters areused.

On/ Off switch
This vacuum pump comes without an on/off switch. The control of thevacuum pump has to be provided for in the course of installation.

SafetyIntended use
DEFINITION: For the purpose of these instructions, “handling” the vacuum pump means the transport, storage, installation, commissioning,
influence on operating conditions, maintenance, troubleshooting andoverhaul of the vacuum pump.
The vacuum pump is intended for industrial use. It should only be handled by qualified personnel.
The different application of the pump and operational limits according
to the “Product Description” and the “Installation Prerequisites” ofthe vacuum pump must be observed both by the manufacturer of themachinery into which the vacuum pump is to be incorporated, and by
the operator.
The maintenance instructions must be adhered to.
Prior to handling the vacuum pump, these operating instructions must
be read and understood. If anything remains to be clarified, pleasecontact your Busch representative!

CAUTION
Disregard of this safety note may lead to accidents with minor injuries or property damage.

Sound Emissions
For the sound pressure level in free field operation according to EN ISO
2151, please see “Technical Data”.
CAUTION
The vacuum pump emits noise of medium intensity.
Risk of damage to hearing.
People staying in the vicinity of a non-noise insulated vacuum pumpover extended periods sof time must wear suitable ear protection.

Transport
CAUTION
Please check the weight of the vacuum pump before lifting it up(see "Technical Data")
Use adequate lifting gear for this.
Seco vacuum pumps pass a rigorous operating test in the factory andare packed carefully to avoid transit damage.
The suction and the discharge apertures are sealed with plugs so thatno dirt can enter the pump during transport. These protections must be
removed before connecting the vacuum pump.
Please check packaging on delivery for any transport damage.
The pump can be lifted from its packaging with a suitable lifting device
using the lifting bracket on the pump.
Packing materials should be disposed of according to environmental
laws, or reused.
CAUTION
Do not walk, work or stand under suspended loads.

Storage
Short-term Storagel

Make sure that the suction connection/gas inlet and the gas discharge/pressure connection are closed (refit the plugs the pump
was delivered with)lStore the vacuum pump

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if possible in its original packaging,indoors,
dry,
dust freevibration free

Safety notes
This vacuum pump has been designed and manufactured in accordance with the latest technical standards, and with current safety
requirements. Nevertheless, residual risks may remain. These operating
instructions inform about potential hazards where appropriate. Safety
notes are tagged with one of the keywords DANGER, WARNING and
CAUTION as follows:
DANGER
Disregard of this safety note will always lead to accidents with fatal or serious injuries.

SafetyPage 4

Installation andCommissioning
Installation prerequisitesllMake sure that the suction line fits the suction connection/gas inlet(IN) of the vacuum pump
Make sure that the gas will be drawn through a vacuum-tight flexible
hose or a pipe

In case of a pipe being used:u Make sure that the pipe will cause no stress on the vacuum
pump’s connection, if necessary use bellows

CAUTIONl
In case of non-compliance with the installation prerequisites, particularly in case of insufficient cooling:

Make sure that the line diameter of the suction line over its entire
length is at least as large as the suction connection/gas inlet (IN) of
the vacuum pump

Risk of damage or destruction of the vacuum pump and adjoining
plant components!

In case of very long suction lines, it is prudent to use larger line sizes inorder to avoid a loss of efficiency. Please seek the advice from yourBusch representative

Risk of injury!

If two or more vacuum pumps work off the same suction line, if thevolume of the vacuum system is large enough to suck back oil or if thevacuum has to be maintained after switching off the vacuum pump:

The installation prerequisites must be complied with.
l

Make sure that the integration of the vacuum pump is carriedout in such a way that the essential safety requirements of the
Ma-chine Directive 2006/42/EC are complied with (it is the
responsibi-lity of the designer of the machinery into which thevacuum pump is to be incorporated; see also the note in the EUDeclaration of Conformity)

Installation Position and Spacel

Make sure that the environment of the vacuum pump is not potentially explosivelMake sure that the following ambient conditions will be complied
with:

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Ambient temperature: 12 to 30 °C
Ambient pressure: atmosphericl

Make sure that the environmental conditions comply with the protection class of the drive motor (in accordance with the motorname plate)l

Make sure that the vacuum pump will be placed or mounted horizontallyl

Make sure that the base for placement / mounting is evenl

Make sure that the vacuum pump can neither inadvertently nor intentionally be stepped on and cannot be used as a support for heavy objects

u Provide a manual or automatic valve (= non-return valve) in
the suction line(the non-return valve that is installed inside the suction connection is
not meant to be used for this purpose!)l

Make sure that the suction line does not contain any foreign objects, e.g. welding slag or swarf

Discharge connection
The following guidelines for the discharge line do not apply if the aspirated air is discharged into the environment right behind the vacuumpump.
CAUTIONIf air is discharged into rooms occupied by people, sufficient ventilation must be provided for.
l

Make sure that the discharge line fits the gas discharge (OUT) of
the vacuum pumpIn case of a pipe being used:u Make sure that the pipe will cause no stress on the discharge
connection, if necessary use bellows
ll

Make sure that the vacuum pump cannot be hit by falling objects

Make sure that the line diameter of the discharge line over its entire length is at least as large as the gas discharge of the vacuum
pumplMake sure that in order to warrant sufficient cooling, there is aclearance of minimum 0,5 m between the fan cover and nearby
walls

In case of very long discharge lines, it is prudent to use larger line sizes
in order to avoid a loss of efficiency and an overload of the vacuum
pump. Please seek the advice from your Busch representativel

Make sure that no temperature-sensitive parts (plastics, wood,
cardboard, paper, electronics) will touch the surface of the vacuum
pump

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Make sure that the installation space or location is vented in such a
way that sufficient cooling of the vacuum pump is warranted
CAUTION

During operation the surface of the vacuum pump may reach temperatures of more than 100°C.
Risk of burns!

Suction Connection

WARNING
Discharge lines made from non-conducting material can build up
static charge.
The discharge line must be made of conducting material or provisions must be made against static charge

Electrical Connection / Controlsl

Make sure that the regulations acc. to the EMC-Directive
2014/30/EU as well as the EN-standards, electrical and occupational safety directives and the local or national regulations, are complied with (this is the responsibility of the designer of themachinery into which the vacuum pump is to be incorporated; seealso the note in the EU-Declaration of Conformity).

l

Make sure that the power supply is compatible with the data on
the name plate of the drive motorlMake sure that an overload protection according to EN 60204-1 isprovided for the drive motor

CAUTION
The ingress of foreign objects or liquids can destroy the vacuumpump.
In case the inlet gas contains dust or other foreign solid particles:u Make sure that a suitable filter (5 microns or less) is installed
upstream of the vacuum pump

Make sure that the discharge line either slopes away from the vacuum pump or provide a liquid separator or a drip leg with a draincock, so that no condensates can enter the vacuum pump

Installation and Commissioning
Page 5l

Make sure that the drive of the vacuum pump will not be affectedby electric or electromagnetic disturbance from the mains; if necessary seek advice from the Busch service

SV/SD 1100 C
Star-star connection, multi-voltage motor (Low voltage):

In case of mobile installation:u Provide the electrical connection with grommets that serve as
strain relief

Installation
Mountingl

Make sure that the “Installation Prerequisites” are complied withlInstall or mount the vacuum pump at the location that has been
provided for it

Electrical connection
Delta connection, multi-voltage motor (High voltage):
WARNING
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified personnel that knows and adheres to the following regulations:- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,- IEC-Report 664 or DIN VDE 0110,- BGV A2 (VBG 4) or corresponding national accident prevention
regulation.
CAUTION
The connection schemes given below are considered to be standard.
Depending on the specific order or for certain markets, deviating
connection schemes may apply.
Risk of damage to the drive motor!
The inside of the terminal box must be checked for drive motor
connection instructions/ terminal plans.
lElectrically connect the drive motorlConnect the earth conductor

Delta connection (Low voltage):Star connection (High voltage):

Installation and Commissioning
Page 6

CAUTIONCAUTION
Operation in the wrong direction of rotation, even for a short periodof time, can destroy the vacuum pump.

During operation the surface of the vacuum pump may reach temperatures of more than 100°C.

Prior to starting up, make sure that the vacuum pump will operate in
the proper direction of rotation.

Risk of burns!

In the case of portable installation of the vacuum pump, the electricalconnection has to be equipped with cable guides in order to prevent
undue stresses on the electrical cable.

The vacuum pump shall be protected against contact during operation. Before touching the vacuum pump, wait until it has cooled
down sufficiently or wear protective gloves.

If the direction of rotation of the fan must be changed:u Switch around any two of the drive motor wires in the terminalbox
Looking at the motor fan cover, the direction of rotation is clockwise.

CAUTION
Make sure that the installation space or location is vented in such a
way that sufficient cooling of the vacuum pump is warranted

Notes on Operation
Application

CAUTION
The vacuum pump emits noise of medium intensity.

CAUTION
The vacuum pump is designed for operation under the conditions
described below.
In case of disregard, risk of damage or destruction of the vacuumpump!

Risk of damage to the hearing.
People staying in the vicinity of a non-noise insulated vacuum pumpover extended periods sof time must wear suitable ear protection.
Seco rotary vane pumps work absolutly oil free. The vanes are made of
special carbon materials and do not need any lubrication.
l

Make sure that all provided covers, guards, and protection grids
etc. have been fittedl

Make sure that protective devices will not be disabled.

l

Make sure that cooling air inlets and outlets are not covered or
obstructed and that the cooling air flow is not affected adversely in
any other waylMake sure that the “Installation Prerequisites” (see “Installation
Prerequisites and Commissioning” are complied with and will remain so, particularly that there is sufficient cooling at all times.

Risk of Injury!
The vacuum pump must be operated under the conditions
described below.
This vacuum pump is designed for–the suction (SV) or the exhaust (SD)of–

air and other dry, non-aggressive, non-toxic and non-explosive gases

Conveying media with a higher density than air leads to an increased
thermal and mechanical load on the vacuum pump and is permissible
only after prior consultation with Busch.
The vacuum pump is made for the intended use in potentially non-explosive areas
Max. permissible number of starts per hour: 12.
The vacuum pump is thermally suitable for continuous operation.
The vacuum pump is leak-tight at ultimate pressure.
CAUTION
This vacuum pump is a dry-running pump.
Do not lubricate the vacuum pump with oil or grease.

CAUTION
The SD version is equipped with an pressure relief valve (PRV which
has been set to the maximum pressure. This setting must not bechanged.
The vacuum pumps have a standard regulating valve.

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Model SV: vacuum regulating valve (VRE)
Model SD: pressure regulating valve (DV)During operation of the vacuum pump, the regulation of either pressure or vacuum can be done at any given time. To do this, turn the
button of the relevant valve.
CAUTION
When the vacuum pump is switched off whilst still under vacuum,gas may flow back into inlet pipe.
To avoid this, a non-return valve or shut-off valve has to be installed.

Maintenance
CAUTION
Always wear protective clothing when carrying out maintenancework.

Maintenance
Page 7

CAUTION
During operation the surface of the vacuum pump may reach temperatures of more than 100°C.
Risk of burns!
lMake sure that the vacuum pump is shut down and cannot be accidentally switched on againl

Let the vacuum pump cool down before starting any maintenance
work.

l

Prior to disconnecting pipework make sure that the connected pipes/lines are vented to atmospheric pressure

Maintenance Schedule
NOTE: The maintenance intervals depend very much on the individual
operating conditions. The intervals given below have to be considered
as starting values which should be shortened or extended as appropriate. Particularly heavy duty operation, such as high dust loads in theenvironment or in the process gas, other contaminations or ingress ofprocess material, can make it necessary to shorten the maintenanceintervals significantly.

SV/ SD 1100 C

Every 6 Months:

Overhaull

Make sure that the vacuum pump is shut down and locked against
inadvertent start upl

Check the suction lines for contamination or blockages.

lCheck the cooling coils and the fan cover regularly for dirt, clean
when neccessary.
A dirty fan cover or cooling coils prevent the proper intake of cooling air which can lead to overheating of the vacuum pump.

l

The electrical connections must be checked by a specialist.

Every 100 - 500 Operating hourslClean the inlet filter on the suction side at regular intervals. The
cleaning intervals depend on the quantity of dust contained in thedrawn air

Pump typel

Check the vanes, for the first time after 2000 operating hours (see“Carbon vanes”)

Every 1000 - 2000 Operating hourslReplacing the outlet filter (SD version only). To do this, lift the cover (see “Suction filter and outlet filter”)

The bearings are pre-lubricated for life and will thus not require
main-tenance. Replace by original roller bearings only

26 mm

CAUTION
In order to achieve best efficiency and a long life of operation, thevacuum pump has been assembled and adjusted with specificallydefined tolerances.
This adjustment will be lost during dismantling of the vacuumpump.
It is therefore strictly recommended that any dismantling of the vacuum pump that goes beyond of what is described in this manualmust be done by the Busch service.

u If the filter is too dirty to be cleaned:
Remove the cover and replace the filter

Every 1000 Operating hours

Width of vanes
minimum A

CAUTION
Improper work on the vacuum pump will put the operating safety at
risk.
Risk of explosion!
Approval for operation of the vacuum pump will be void!
Any dismantling of the vacuum pump that goes beyond of what is
described in this manual must be done by specially trained Buschservice personnel only.

Inlet filter and pressure filter (SD)Removal from Service

The inlet filter and the pressure filter must be cleaned at regular intervals, depending on the amount of dust in the air being pumped. Blow
out the filter cartridges with compressed air from the inside out. If the
cartridge is too dirty to be cleaned, it must be replaced.
The cartridges can be taken out after the removal of the filter cover.

Temporary Removal from Service

Vanes
The lifetime of the carbon vanes (VA) depends on the application of
the vacuum pump. If the width of the vane reaches the given limit forre-placement, it is necessary to change the vanes.
Remove the filter cover and the cylinder endplate to change thevanes. Blow out the compression chamber with dry compressed air.
Make sure that the vanes are positioned correctly and the right way
round (curved edge facing the cylinder wall).

l

Prior to disconnecting pipes/lines, make sure that all pipes/lines are
vented to atmospheric pressure

Recommissioning
CAUTION
Vanes can stick after a long period of standstill.
Risk of vane breakage if the vacuum pump is started with the drive
motor.
After longer periods of standstill, the vacuum pump must be turnedby hand.
After longer periods of standstill:

OverhaulPage 8u Make sure that the vacuum pump is shut down and cannot be
accidentally switched on again
u Remove the fan cover of the drive motor
u Slowly rotate the fan by hand in the intended direction ofrotationu Refit the fan cover of the drive motor
If it is suspected that deposits could have gathered in the vacuumpump:
u Clean using dry compressed airlObserve the chapter “Installation and Commissioning”

Dismantling and DisposallMake sure that all materials and components to be treated as special waste have been separated from the vacuum pump

According to the best knowledge at the time of print of this manual,
the materials used for the manufacture of the vacuum pump involve norisk.
lDispose of special waste in compliance with applicable regulationslDispose of the vacuum pump as scrap metal

Removal from Service
Page 9

Troubleshooting
WARNING
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be carried out by qualified personnel that knows and adheres to the following regulations:- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,- IEC-Report 664 or DIN VDE 0110,- BGV A2 (VBG 4) or equivalent national accident prevention regulations.
CAUTION
During operation, the surface of the vacuum pump may exceed temperatures of 100°C.
Risk of burns!
Do not touch the hot surfaces of the vacuum pump.
Please contact your local Busch representative if you have any doubts or questions
ProblemPossible Cause

RemedyThe vacuum pump does not reach the usual
working pressure

The vacuum system or suction lines are notleak-tight

Check piping, hoses or pipe connections forany possible leaks

The amperage of the motor is too high (compared with the initial values after commissioning)

The exhaust filter is dirty

Replace the exhaust filter

Reaching operational pressure takes too long

In case an inlet filter is installed on the suction
side (IN):(see “Maintenance”)
Clean or change the filter

The filter on the suction side (IN) is partiallycloggedThe vacuum pump does not startPartial clogging or blockage in suction or discharge lines

Remove foreign particles

Suction or discharge lines too long or too
small (diameter)

Use larger diameter lines

The disc of the non-return valve (SD) at the
inlet is (fully or partially) jammed in closed position

Dismantle the inlet, clean the valve and reassemble

A pressure valve is jammed in a partially open
position

Dismantle, clean, check and reassemble thepressure valve (Busch service)

A vane (VA) is jammed in the rotor ordamagedFree the vanes or replace them with new ones
(Busch service)

The radial clearance between the rotor (RT)and the cylinder is no longer correct

Reset the clearances in the vacuum pump(Busch service)

Internal parts of the vacuum pump worn or
damagedHave the vacuum pump repaired (Busch service)

The drive motor is not supplied with the correct voltage or is overloaded

Supply the drive motor with the correct voltage

The drive motor trip switch protection is too
weak or trip level is set too low

Compare the technical data of the drive motor
trip switch with the data on the name plate of
the motor.
Correct if necessary
In case of high ambient temperature:
Set the trip level of the drive motor trip
switch 5% above the nominal drive motor
current

One of the fuses has blown

Troubleshooting
Page 10Check the fuses

The electrical connection cable is too long or
its diameter too small causing a voltage dropat the vacuum pump

Use an adequately dimensioned cable

The vacuum pump or the drive motor is jammed or seized

Make sure that the drive motor is disconnected from the power supply
Remove the fan cover
Try to turn the fan by hand
If the unit vacuum pump / drive motor is still
jammed:Remove the drive motor and check the drive
motor and the vacuum pump separately
If the vacuum pump is jammed:
Have the vacuum pump repaired (Busch service)

The vacuum pump is jammed or seized

The drive motor is defective

Change the drive motor (Busch service)

Broken vanes

Have the vacuum pump repaired (Busch service)
Check the process

The vacuum pump was operated in the wrong
direction of rotation

Have the vacuum pump repaired (Busch service)
When connecting the vacuum pump, makesure the vacuum pump will run in the correct
direction of rotation (see “Installation”)

The vacuum pump starts, but runs noisily or
not as it should

The motor winding is defective
The drive motor operates on two phases only

The amperage of the motor is too high (compared with the initial value after commissioning)

Tighten or change the connections

The vacuum pump runs in the wrong direction (of rotation)

Check rotation of the drive motor. See“Installation and Commissioning”, change ifnecessaryStandstill of the vacuum pump over several
weeks or months in a damp environment

Switch on the vacuum pump and let it warm
up with the inlet closed

Broken vanes

Have the vacuum pump repaired (Busch service)

Seized bearings
The vacuum pump is very noisy

The vacuum pump is very hot

Check the proper connection of the wires
against the wiring diagram

Defective bearings

Have the vacuum pump repaired (Busch service)

Stuck vanes

Have the vacuum pump repaired (Busch service)

Insufficient ventilation

Make sure that the cooling of the vacuum
pump is not impaired by dust/dirt
Clean the fan cover, fans, ventilation grids
and cooling fins
Install the vacuum pump in a narrow space
only if sufficient ventilation can be guaranteed

Ambient temperature too highKeep within the permitted ambient temperature range

Temperature of the drawn gases too highKeep within the permitted temperature range
for the drawn gases

The exhaust filters are partially clogged(SD/DC)

Replace exhaust filters (SD/ DC)

Mains frequency or mains voltage outside tolerance range

Provide a more stable power supply

In case an inlet filter is installed on the suction
connection (IN) :Clean or replace the filter

The filter on the suction connection (IN) is
partially clogged

Troubleshooting
Page 11

Troubleshooting
Page 12

Partial clogging or blockage in suction or discharge lines

Remove foreign particles

Suction or discharge lines too long, or too
small (diameter)

Use larger diameter lines

Exploded view

Exploded view
Page 13

Spare parts
NOTE: When ordering spare parts or accessories acc. to the table below, please always quote the type and the serial no. of the vacuum
pump (on the name plate of the pump). This will allow Busch service
technicians to check if the vacuum pump is compatible with a modified
or improved part.
The exclusive use of genuine spare parts and consumables is a prerequisite for the proper function of the vacuum pump and for the granting of warranty, guarantee or goodwill.
This parts list applies to a typical and standard configuration of the vacuum pump. Specific pump configuration parts lists can be supplied
upon request, and after quoting the serial number of the pumpconcerned.

Gasket kit
The gasket kits contain all the seals to be changed during service workon a vacuum pump.
Part number : 0990 501 666
Pos.

Part

Qt

SV 1100 C/
SD 1100 C

2

Tube

1,2 m

0570 000 188

57

Seal

1

0482 500 089

91

Seal

1

0482 500 111

Full service kit
The full service kits contain all relevant gasket kits as well as the parts
subjected to wear and tear that need to be changed.
Part number : 0993 506 675
Pos.

Part

Qt

SV1100 C /SD 1100 C

4

Ball bearing

10473 500 356

21

Cylindrical roller bearing

10473 000 121

35

Vane

4

0722 500 12255

Filter cartridge

10532 500 080

90Filter cartridge

10532 500 081

121

Clutch disk

10512 000 140-

Gasket kit

1

0990 501 666

Spare parts
Page 14

Accessories
Accessories

SV 1100 C

Air filter

0945 501 916

Non-return valve

0947 504 331

Spare parts
Page 15

Technical data
SV 1100 C

Technical data
Nominal displacement

50 (60) Hz

Ultimate pressure
Overpressurem /hhPa (abs.)100-hPa (abs.)

-

2500

Nominal motor rating

50 (60) Hz

kW

Nominal motor speed

50 (60) Hz

min-1

Sound level (EN ISO 2151)

50 (60) Hz

dB(A)Technical data
Page 165,5 (7,5)3 (4)1500 (1800)
75 (76)

Ambient pressure
Weight approx.

SD 1100 C
100 (120)

3

77 (78)
Atmospheric pressure

50 (60) Hzkg

111 (122)

129 (141)

EU Declaration of Conformity
This Declaration of Conformity and the CE-mark affixed to the nameplate are valid for the machine within the
Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer.
When this machine is integrated into a superordinate machinery the manufacturer of the superordinate machinery(this can be the operating company, too) must conduct the conformity assessment process for the superordinate
machine or plant, issue the Declaration of Conformity for it and affix the CE-mark.
The manufacturer
Busch Výroba CZ s.r.o

Svárovská 620
CZ 460 01, Liberec 11
declares that the machine(s): SECO SV/SD 1100 C
fulfil(s) all the relevant provisions from European directives:– ‘Machinery’ 2006/42/EC– ‘Electromagnetic Compatibility’ 2014/30/EU– ‘RoHS’ 2011/65/EU Restriction of the use of certain hazardous substances in electrical and electronic equipment (incl. all related applicable amendments)
and comply(-ies) with the following designated standards that have been used to fulfil those provisions:Standard
Title of the Standard
EN ISO 12100 : 2010
Safety of machinery - Basic concepts, general principles of design
EN ISO 13857 : 2019

Safety of machinery - Safety distances to prevent hazard zones being reachedby the upper and lower limbs

EN 1012-1 : 2010
EN 1012-2 : 1996 + A1 : 2009

Compressors and vacuum pumps - Safety requirements - Part 1 and Part 2

EN ISO 2151 : 2008

Acoustics - Noise test code for compressors and vacuum pumps - Engineering
method (grade 2)

EN 60204-1: 2018

Safety of machinery - Electrical equipment of machines - Part 1: General requirements

EN IEC 61000-6-2 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Immunity for industrial environments

EN IEC 61000-6-4 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Emission standard
for industrial environments

EN ISO 13849-1 : 2015 (1)Safety of machinery - Safety-related parts of control systems - Part 1: Generalprinciples for design(1)
In case control systems are integrated.
Legal person authorized to compile the technical fileand authorized representative in the EU(if the manufacturer is not located in the EU):

Busch Dienste GmbH
Schauinslandstr. 1
DE-79689 Maulburg

Liberec, 14.05.2021

Michael Dostálek, General Director

17

UK Declaration of Conformity
This Declaration of Conformity and the UKCA-mark affixed to the nameplate are valid for the machine within the
Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer.
When this machine is integrated into a superordinate machinery the manufacturer of the superordinate machinery(this can be the operating company, too) must conduct the conformity assessment process for the superordinate
machine or plant, issue the Declaration of Conformity for it and affix the UKCA-mark.
The manufacturer
Busch Výroba CZ s.r.o

Svárovská 620
CZ 460 01, Liberec 11
declares that the machine(s): SECO SV/SD 1100 C
fulfil(s) all the relevant provisions from UK legislations:– Supply of Machinery (Safety) Regulations 2008
– Electromagnetic Compatibility Regulations 2016
– Restriction of the use of certain hazardous substances in electrical and electronic equipment Regulations 2012
and comply(-ies) with the following designated standards that have been used to fulfil those provisions:Standard
Title of the Standard
BS EN ISO 12100 : 2010
Safety of machinery. Basic concepts, general principles of design. Risk assessment and risk reduction.
BS EN ISO 13857 : 2019

Safety of machinery - Safety distances to prevent hazard zones being reachedby the upper and lower limbs.

BS EN 1012-1 : 2010
Compressors and vacuum pumps. Safety requirements. Air compressors and
BS EN 1012-2 : 1996 + A1 : 2009 vacuum pumps.
BS EN ISO 2151 : 2008

Acoustics - Noise test code for compressors and vacuum pumps - Engineering
method (grade 2)

BS EN 60204-1 : 2018

Safety of machinery. Electrical equipment of machines. General requirements.

BS EN IEC 61000-6-2 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Immunity standard
for industrial environments.

BS EN IEC 61000-6-4 : 2019

Electromagnetic compatibility (EMC) - Generic standards. Emission standard
for industrial environments.

BS EN 13849-1 : 2015 (1)Safety of machinery. Safety-related parts of control systems. General principles
for design.
(1)
In case control systems are integrated.
Legal person authorized to compile the technical fileand importer in the UK(if the manufacturer is not located in the UK):

Liberec, 14.05.2021

Michael Dostálek, General Director

18

Busch (UK) Ltd
30 Hortonwood
Telford - UK

NoteBusch
Vacuum Solutions
We shape vacuum for you.

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0870108458/-A0002_en / © Busch Výroba CZ s.r.o