BUSCH Huckepack HO 0429 F User manual

Installation and
Operating Instructions
Rotary Vane
Vacuum Pumps Huckepack
HO 0429-0441 F
ATEX Version
Ateliers Busch S.A.
Zone industrielle
2906 Chevenez
Switzerland
0870536238/ E0002/ 181212 / Original instructions / Modifications reserved

Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Safety guards . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product description . . . . . . . . . . . . . . . . . . . . . . . . . 4
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating principle . . . . . . . . . . . . . . . . . . . . . . . . 4
Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Cooling systems variants . . . . . . . . . . . . . . . . . . . . 4
Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Direct cooling . . . . . . . . . . . . . . . . . . . . . . . . 4
Radiator cooling . . . . . . . . . . . . . . . . . . . . . . . 5
Limits of use . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operating pressure. . . . . . . . . . . . . . . . . . . . . . . 5
Counterpressure . . . . . . . . . . . . . . . . . . . . . . . . 5
Liquid and solid particles . . . . . . . . . . . . . . . . . . . . 5
Gas temperature . . . . . . . . . . . . . . . . . . . . . . . . 5
Seal fluid circulation . . . . . . . . . . . . . . . . . . . . . . . 5
Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Optional functions/ Use of available accessories . . . . . . . . . 6
On/ Off switch . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety devices . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Safety information . . . . . . . . . . . . . . . . . . . . . . . . 7
Noise emission . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maintenance clearance . . . . . . . . . . . . . . . . . . . . . . 7
Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Transport in packed state . . . . . . . . . . . . . . . . . . . . . 7
Transport in unpacked state . . . . . . . . . . . . . . . . . . . 7
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Temporary storage . . . . . . . . . . . . . . . . . . . . . . . . 8
Removal of the vacuum pump . . . . . . . . . . . . . . . . . . 8
Preservation . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Start-up of the vacuum pump after storage . . . . . . . . . . 8
Installation and start-up . . . . . . . . . . . . . . . . . . . . . . 8
Necessary installation instructions . . . . . . . . . . . . . . . . 8
Mounting position and space . . . . . . . . . . . . . . . . . . . 8
Inlet connection . . . . . . . . . . . . . . . . . . . . . . . . . 9
Discharge connection . . . . . . . . . . . . . . . . . . . . . 9
Electrical connection/ Checks . . . . . . . . . . . . . . . . . 10
Connecting cooling water . . . . . . . . . . . . . . . . . . 10
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Legend of functional diagram . . . . . . . . . . . . . . . . . . 13
Drive process . . . . . . . . . . . . . . . . . . . . . . . . . 13
Adjustment values . . . . . . . . . . . . . . . . . . . . . . 13
Working drive procedure . . . . . . . . . . . . . . . . . . . . 15
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Connecting electrically . . . . . . . . . . . . . . . . . . . . 16
Measuring transmitter for the resistance thermometer (option) 18
Function check . . . . . . . . . . . . . . . . . . . . . . . . 18
Fault finding and repairs . . . . . . . . . . . . . . . . . . . 18
Pressure sensor (PSA+/0310) . . . . . . . . . . . . . . . . . 18
First filling with cooling water. . . . . . . . . . . . . . . . . 19
Non circulating cooling. . . . . . . . . . . . . . . . . . . 19
Circuit cooling with thermostat for water circulation . . . . 19
Connecting lines/ pipes . . . . . . . . . . . . . . . . . . . . 19
Saving the operating parameters . . . . . . . . . . . . . . . 19
Seal fluid filling . . . . . . . . . . . . . . . . . . . . . . . . 19
Lubrication system . . . . . . . . . . . . . . . . . . . . . . . 19
The seal fluid pump. . . . . . . . . . . . . . . . . . . . . . 19
Adjustment of the seal fluid pump . . . . . . . . . . . . . . 20
Priming of the seal fluid pump . . . . . . . . . . . . . . . . 20
Adjustment depending on the direction of rotation . . . . . . 20
Recommendations on operation. . . . . . . . . . . . . . . . . 20
Application . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Rapid exchange of stage . . . . . . . . . . . . . . . . . . . 22
Motor and coupling installation. . . . . . . . . . . . . . . . 22
Maintenance of add-on pieces . . . . . . . . . . . . . . . . . 23
Exhaust silencer. . . . . . . . . . . . . . . . . . . . . . . . 23
Seal fluid separator . . . . . . . . . . . . . . . . . . . . . . 23
Safety knock-out separator Duosec . . . . . . . . . . . . . . 23
Suction filter . . . . . . . . . . . . . . . . . . . . . . . . . 24
Flushing device . . . . . . . . . . . . . . . . . . . . . . . . 24
Manual flushing device. . . . . . . . . . . . . . . . . . . 24
Automatical flushing device . . . . . . . . . . . . . . . . 24
Flushing liquids. . . . . . . . . . . . . . . . . . . . . . . 24
Inspection and adjustment of the belts . . . . . . . . . . . 24
Maintenance program. . . . . . . . . . . . . . . . . . . . . . 25
Daily . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Weekly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Yearly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Every 4000 hours of operation . . . . . . . . . . . . . . . . 25
Every 8 000 hours of operation . . . . . . . . . . . . . . . . 25
Every 16 000 hours of operation, at the latest after 4 years. . 25
Every 20 000 hours of operation (for HO 0433/ 0441 F) . . . 25
Every 30 000 hours of operation (for HO 0429/ 0433 F) . . . 25
Every operation of dismantling . . . . . . . . . . . . . . . . 25
Checking the seal fluid . . . . . . . . . . . . . . . . . . . . . 25
Checking the seal fluid level . . . . . . . . . . . . . . . . . 25
Refilling the seal fluid . . . . . . . . . . . . . . . . . . . . . 25
Checking the colour of the seal fluid . . . . . . . . . . . . . 26
Lifetime of the seal fluid . . . . . . . . . . . . . . . . . . . 26
Seal fluid change . . . . . . . . . . . . . . . . . . . . . . . 26
Replacing used seal fluid . . . . . . . . . . . . . . . . . . 26
Filling in new seal fluid . . . . . . . . . . . . . . . . . . . . . 26
Checking the current consumption . . . . . . . . . . . . . . . 26
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Removal from service . . . . . . . . . . . . . . . . . . . . . . . 26
Temporary removal from service . . . . . . . . . . . . . . . . 26
Recommissioning . . . . . . . . . . . . . . . . . . . . . . . . 26
Dismantling and disposal . . . . . . . . . . . . . . . . . . . . 27
Exploded drawing . . . . . . . . . . . . . . . . . . . . . . . . . 28
Wearing parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Seal fluid type/ quantity. . . . . . . . . . . . . . . . . . . . . . 34
Seal fluid type . . . . . . . . . . . . . . . . . . . . . . . . 34
Seal fluid quantity . . . . . . . . . . . . . . . . . . . . . . 34
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
EU-Declaration of Conformity . . . . . . . . . . . . . . . . . . . 37
Busch – All over the World in Industry . . . . . . . . . . . . . . 40
Preface HO 0429-0441 F
Page 2 0870536238 (En)
Preface
Congratulations on your purchase of the Busch vacuum pump. With
watchful observation of the field’s requirements, innovation and steady
development Busch delivers modern vacuum and pressure solutions
worldwide.
For the purpose of these instructions, “handling” the vacuum system
means the transport, storage, installation, commissioning, influence on
operating conditions, maintenance, troubleshooting and overhaul of
the vacuum pump.
Prior to handling the vacuum pump these operating instructions shall
be read and understood. If anything remains to be clarified please
contact your Busch representative.
Keep these operating instructions and, if applicable, other pertinent
operating instructions available on site.

HO 0429-0441 F
0870536238 (En) Page 3
1
13
2
7
9
12
5
6
15
4
17
11
3
8
16
14
10
1 Seal fluid tank
2 Flushing fluid vessel (option)
3 Holding plate
4 Bypass valve
5 Flap valve
6 Exhaust silencer (accessory)
7 Tread rollers
8 Holding screws
9 Guide rail
10 LP rotor (low pressure)
11 HP rotor (high pressure)
12 Platinum thermometer
TSA+/0102
13 Platinum thermometer
TSA+/0101
14 Inlet flange
15 Discharge flange
16 LP-Stage (low pressure)
17 Valve housing
1
2
5
4
6
3
Safety guards
1 Cover seal fluid pump
2 Cover motor fan
3 Coupling safety grill
4 Cover V-belt drive
5 Radiator safety grill
6 V-belt drive safety grill

Product description
Use
The Huckepack vacuum pumps are designed for use in the field of coarse
and fine vacuum. The vacuum pump conforms to the European directive
2014/34/EU (ATEX) and has been adapted to safe use in hazardous
areas.
The vacuum pump is provided with the following characterization of
protection against explosions:
The term "inside" concerns the area of the pump, which is in contact
with the process gas. The term "outside" concerns area of the pump,
which is in contact with the environment.
The vacuum pumps are authorised to draw mixtures of gases or vapors
from out the zone 1 area and, in the zone 1. Explosive gases or vapor of
the explosion group IIB and of the temperature class T3 can be proces-
sed.
The vacuum pumps are not designed to operate from an
atmosphere with explosion danger, with a tendency to the deterioration
or which is not chemically stable.
The vacuum pumps can be placed in rooms of the zone 1 category.
Additionally, the vacuum pumps can also be suitable only for use in an
explosive environment, i.e "inside" only or "outside". Please refer to the
identification plate of the vacuum pump for further information.
This vacuum pump can only be used if the materials of construction are
resistant to chemical and mechanical attack (for example corrosion) du-
ring running; this in order that the protection against the explosion is not
suppressed.
Before using the vacuum pump with aggressive or toxic gases, please
contact imperatively your local Busch Agency.
WARNING
When using toxic, inflammable and/ or explosive gases, make sure
that the system corresponds in design to applicable local and national
safety regulations and that all applicable safety measures are followed.
All product-specific safety regulations must be observed.
Solid particles must not get into the vacuum pump. There are different
filters and separators to connect in series that can be found in our acces-
sory program.
Procedural errors can result in the vacuum pump sucking in a certain
quantity of liquid. If the vacuum pump has sucked in liquid, a short
drying time is necessary at the end of the procedure.
The vacuum pump is intended for use in a potentially non-explosive en-
vironment.
Max. permissible number of startings per hour: 12.
As far as temperature is concerned, the vacuum pump is suitable for
continuous duty at any pressure between atmosphere and ultimate pres-
sure.
The vacuum pump is tight down to ultimate pressure.
Operating principle
The Huckepack vacuum pumps work according to the rotary vane
principle. Thereby the pumping direction is vertical that means, that the
circulation of the gas-flow is downwards. There are two modules which
are placed one upon the other. The Huckepack vacuum pumps are water
cooled. An eccentrically installed rotor rotates in the cylinder.
The centrifugal force of the rotation pushes the vanes, which are gliding
in slots in the rotor, towards the wall of the cylinder. The vanes separate
the sickle-shaped space between the rotor and the cylinder in the
chambers.
When connected with the inlet channel, the gas is sucked in, compressed
by the rotation and compressed again in a further level and discharged.
The seal fluid of the vacuum pump constantly causes the seal fluid to be
pressed into the compression chambers, which is discharged with the
medium as seal fluid fog.
With the help of the radiator cooling, the Huckpack becomes
independent of the cooling water net. The water circulation is made with
an integrated cooling water circulating pump. The running temperature
of the vacuum pump can be adjusted with a temperature regulation
valve.
There is a seal fluid separator or an exhaust muffler available. The use of
these accessories makes it possible to reach an exhaust air which
contains almost no seal fluid.
CAUTION
Liquid and solid particles must not enter the vacuum pump.
They can lead to ablution of the lubricating film in the compression
chamber and to increased abrasion of the cylinder trads and therefore
to overheating of the vacuum pump.
Additionally, it must be checked that there is no condensation during
the compression (boiling point, partial vapour pressure). In the case of
acids or alkaline vapours respectively solvents, consult your local
Busch-Agency.
CAUTION
The Huckepack vacuum pumps are generally shipped without seal
fluid. Operating the vacuum pump without seal fluid will damage the
vacuum pump!
According to the medium processed by the vacuum pump, it must be
run warm before beginning. In case of doubt, please contact your local
Busch-agency.
After processing, it may be that the vacuum pump must be kept running
for a time or that it must be flushed. In case of doubt, please contact
your local Busch-Agency.
CAUTION
If there is danger of frost, it has to be made sure that all cooling water
was drained. Therefore, open the water outlet. In the case of non cir-
culating water cooling, the water inlet must be shut off at first. As an
alternative, use cooling water with antifreezing solution.
Versions
Due to the numerous application cases, the Huckepack vacuum pumps
are supplied in different versions.
Cooling systems variants
Sizes
The Huckepack vacuum pumps are available in the following different
sizes:
HO: Huckepack once-through oil lubricated
–HO 0429 = 160 m3/h (50 Hz)
–HO 0433 = 250 m3/h (50 Hz)
–HO 0437 = 400 m3/h (50 Hz)
–HO 0441 = 630 m3/h (50 Hz)
–F = Design standard
The shock pressure resistance of the vacuum pumps is tested in the fac-
tory and this resistance is 10 bar. Accessories at the inlet and outlet of
the vacuum pump, for example a seal fluid separator are only executed
in explosion proof version on customer request.
Direct cooling
The Huckepack vacuum pumps with direct cooling system have a water
inlet unit with a magnetic valve (Y04, option) that stops the water inflow
at the shutdown of the pump and releases the water flow when the
pump is running in order to ensure cooling. As an option, a water inlet
Product description HO 0429-0441 F
Page 4 0870536238 (En)
CE II inside (i) 2G II B T3 X
outside (o) 2G II B T4 X

HO 0429-0441 F Product description
0870536238 (En) Page 5
unit with temperature regulating valve is possible. With this valve, the
operating temperature of the vacuum pump can be regulated. A pres-
sure control switch (accessory) controlling the static water pressure can
be used to turn off the vacuum pump.
Radiator cooling
With the help of closed loop cooling the Huckepack is independent of
the cooling water net. Water circulation is made by an integrated cooling
watercirculating pump. The cooling water is firstly pumped through the
pump housing where it takes the heat from the compression process. Fi-
nally, the cooling water is cooled with a ribbed radiator. Thanks to an
axial fan, the ribbed radiator conducts the heat into the environment.
Limits of use
Operating pressure
The normal operating pressure range of the vacuum pump Huckepack is
0,5-100 hPa (mbar).
For continuous service with higher operating pressures a bypass valve is
fitted in order to be able to operate at higher pressures. In case of higher
intake pressures, the drive power of the motor must be checked. If ne-
cessary the motor must be replaced by a motor with a higher drive po-
wer. The vacuum pump can operate with a closed valve on the suction
side for continuous service (zero delivery).
Counterpressure
The drive motors designed for vacuum operation below 100 hPa (mbar)
that means that in this measurement range, the gas may be compressed
to an overpressure of 0.2 bar relative. The overpressure is controlled by a
pressure sensor (PSA+/0301). At 0,2 bar, the vacuum pump should be
immediately stopped. The failure have to be found and eliminated before
restart.
When starting up an entire or a large volume system, throttle the suction
valve so that the pump does not "see"more than approximately 200 hPa
inlet presure.
When the system pressure goes below 200 hPa, the inlet valve may be
fully opened.
Liquid and solid particles
Liquid and solid particles must not enter the vacuum pump. They can
lead to destruction of the lubricating film in the compression chamber
and to increased abrasion of the cylinder walls and therefore to overhea-
ting of the vacuum pump.
Additionally there must be no condensation during the compression
(boiling point, partial vapor pressure). In case of acids or alkaline vapors
respectively solvents, consult yout local Busch agency.
Gas temperature
The admissible gas temperature at the inlet is 50°C.
Seal fluid circulation
The Huckepack vacuum pumps are lubricated by a lubrication pump. The
seal fluid is transported through tubes directly to the lubrication spots.
(See “Lubrication system”)
1 3
3
2
4
Radiator cooling
1 Cooling water inlet
2 Thermostat for water circulation (option)
3 Hose clips
4 Cooling water outlet
1
2
3
Direct cooling with temperature regulating valve
1 Cooling water outlet
2 Cooling water inlet
3 Drain cock
1
2
3
Direct cooling
1 Cooling water outlet
2 Cooling water inlet
3 Drain cock

Product description HO 0429-0441 F
Page 6 0870536238 (En)
Cooling
The Huckepack vacuum pumps are available with:
–Direct cooling
The cooling water connection can be made with flexible hoses or water
pipes. The water outlet must be without pressure. The cooling water in-
let is controlled by a magnetic valve (Y04, option). It stops the water in-
flow at the shutdown of the vacuum pump and releases the water flow
when the vacuum pump is running in order to ensure cooling.
For non circulating cooling, the cooling water must fulfill the following
conditions:
–Water pressure: 3¼8 bar
–Water temperature: 15°C (max. 40°C)
–Water hardness: 12 dH
The water must be neutral and clean. The water outlet must be without
pressure. Hose liner LW 13.
The pressure control switch (accessory) in front of the water inlet turns
the vacuum pump off when the water pressure is too low.
The temperature regulating valve (option) is to be adjusted with the ro-
tary button starting with 0 (max. quantity flow) to 5 (min. quantity flow)
so that the temperature at the water thermometer is the same as of the
vacuum pump.
The control value is 55-90°C, normal 80°C.
–Radiator cooling
With the help of the closed loop, cooling the Huckepack vacuum pump
becomes independent of the cooling water circuit. The water circulation
is made by an integrated cooling water circulating pump. The cooling
water is firstly pumped through the pump housing, where it takes the
heat from the compression process. Finally, the cooling water is cooled
with a ribbed radiator. Thanks to an axial fan, the ribbed radiator
conducts the heat into the environment.
–Thermostatic valve
Adjust the thermostatic valve with the rotary button starting with 0
(max. quantity flow) to 5 (min. quantity flow) so that the temperature at
the water thermometer is the same as of the pump. The normal tempe-
rature of the pump is 80°C. In case of high ambient temperatures up to
40°C, and with the thermostatic valve on position 5, the temperature of
the pump increases up to 90°C. If the environment is cold, the pump
temperature decreases to 55°C. In case of ambient temperatures excee-
ding 25°C and high counterpressure at the pump outlet (>100 mbar), we
recommend adjusting the thermostatic valve to position 0 to 3 in order
to prevent overheating.
–Cooling water
In case of winter operation a mixture of water and anti freezing solution
must be used as cooling liquid. The mixture must be mixed before it is
charged.
Optional functions/ Use of available
accessories
For simple applications, an exhaust silencer can be mounted on demand.
In order to separate the seal fluid and the seal fluid mist that leave the
vacuum pump on the pressure side, a separator can be installed. The se-
parator is available in the following finition: aluminium with filter ele-
ments, refined stainless steel with ceramic filter cartridges, steel with
halar coating and ceramic filter cartridges.
For the suction-sided connection at the vacuum pump, a safety knock
out separator Duosec can be mounted. Occurring condensate or splash
waters are separated in the lower part of the Duosec. Dust particles or li-
quid drops which are dragged along are filtered in the filter element that
is connected in series. The size of retention is 5mm stainless. Finish in
stainless steel or glass with filter cartridge and safety high liquid level
switch.
Check if the safety knock-out pot is adapted to the application fores-
sen. Liquid and solid particles must not enter the pump, refer to the
running limits. Consult your local Busch Agency.
The gas ballast valve is recommended for installation in the HP stage. If
there is danger of condensation in the vacuum pump, when pumping
aggressive and high-boiling vapours.
2/2 way
valve (Y04)
Shut o tap
Pressure switch
Dust separator
Temperature
regulating valve
2/2 way valve (Y04)
Shut o tap
Pressure switch control
Dust separator
2
7
1
6
43
3
5
3
1 Water inlet
2 Radiator
3 Hose clips
4 Water outlet
5 Ventilator
6 Cooling water circulating pump
7 Thermostatic valve

HO 0429-0441 F Safety
0870536238 (En) Page 7
The flushing device makes it possible to clean the slide and compression
chambers from resinating, polymerizing, subliming or corrosive tailings.
As options, manual and automatical flushing devices are available.
The suction filters in the standard version are delivered with steel/ alumi-
nium housings and paper cartridge. The alloy steel version is equipped
with a PTFE-filter cartridge.
The retention is 5mm. Install the suction filter vertically, if possible.
On/ Off switch
The Huckepack vacuum pump comes without on/ off switch. The con-
trol of the vacuum pump is to be provided in the course of installation.
Safety
Intended use
DEFINITION: To rule out any misunderstanding, the term “handling” of
the vacuum pump covers transport, storage, installation of the vacuum
pump as well as effects on operating states and troubleshooting on the
vacuum pump.
The vacuum pump is intended for industrial use. It may only be operated
by qualified personnel.
The different possibilities and limit values for operation described in
“Product description” and “Installation requirements” must be observed
by the manufacturer of the system into which the vacuum pump is to be
integrated and by users.
The need for personal safety regulations depends in principle on the type
of use. The operator must provide the users with the necessary means
and must inform his personnel about the dangers emanating from the
processed product.
The user of the vacuum pump must observe the safety regulations and
must train and instruct his personnel accordingly.
Local regulations regarding the motors and electric control elements
must be observed when installing the vacuum pump in potentially explo-
sive environments.
The maintenance instructions must be followed and observed.
These installation and maintenance instructions must be read and un-
derstood before the vacuum pump is used. If you have any doubts,
contact your Busch representative.
Safety devices
The Huckepack vacuum pumps are equipped with safety guards. To pre-
vent any danger caused by moving parts if the vacuum pump is correctly
used.
The safety guards may only be removed when the the vacuum pump is
switched off and secured against accidental switch-on.
Safety information
The vacuum pump is designed and manufactured in compliance with the
latest technical standards and safety regulations. Nether less an element
of residual risk remains.
Various safety instructions are to be found in this handbook and on the
vacuum pump. These instructions must be followed. You can recognise
these instructions by the signal words DANGER, WARNING and
CAUTION, which are defined as follows:
DANGER
Disregard of this safety instruction will always result in death, se-
rious injuries or severe damage.
WARNING
Disregard of this safety instruction may result in death, serious inju-
ries or severe damage.
CAUTION
Disregard of this safety instruction may result in minor or moderate
injuries or damage.
Noise emission
Refer to the table “Technical data” for the permissible noise level in free
field conditions according to DIN ISO 2151.
CAUTION
The intensity of the noise of the vacuum pump is higher within a cer-
tain area of the vacuum pump.
Risk of hearing damage.
Users must wear ear protection when spending a longer period of
time in the vicinity of a non insulated vacuum pump.
Maintenance clearance
Before any maintenance action, ensure a maintenance clearance around
the vacuum pump of min. 610 [mm].
Transport
The Huckepack vacuum pumps are tested and checked in our factory be-
fore careful packing. Check the packaging for transport damage when
the goods arrive. The vacuum pump can withstand temperatures bet-
ween -25°C and +55°C during transport.
The inlet flange is sealed with a plug, so that no dirt can enter the va-
cuum pump during transport. The plug must be removed before connec-
ting the vacuum pump with the vacuum pipe. Please check packing on
delivery for transport damage. The pump can be lifted from the packing
with a suitable lifting device using the lifting bracket on the vacuum
pump.
CAUTION
When transporting the vacuum pump with a fork truck, take care of
the thrust point. This may vary according to the accessories that have
been assembled.
Transport in packed state
Packed on a pallet, the vacuum pump can be moved with a hand forklift
truck.
Transport in unpacked state
The vacuum pump is fastened to the pallet with brackets (yellow):
uRemove the bolting between the vacuum pump and the pallet/
base plate.
Lifting bracket

CAUTION
Do not work, walk or stand under suspended loads.
CAUTION
Please check out the weight of the vacuum pump before lifting it up
(see "Technical Data").
Use adequate lifting gear for this.
NOTE: The suspension eyes are located at about the centre-of-gravity of
the vacuum pump. If the vacuum pump is equipped with accessories that
could influence the center-of-gravity, this must be taken into account
when lifting and a belt must additionally be attached to a specific point.
lFasten the hoist to the suspension eye of the cylinder
lUse a hoist that is equipped with a hook and safety lock
lLift the vacuum pump
CAUTION
The vacuum pump may not be lifted any more when it has been filled
with oil.
In case the vacuum pump was bolted to a pallet:
uRemove the stud bolts from the rubber feet
CAUTION
Tilting a vacuum pump that is already filled with oil can cause large
quantities of oil to ingress into the cylinder.
Starting the vacuum pump with excessive quantities of oil in the cylin-
der will immediately break the vanes and ruin the vacuum pump.
Once the vacuum pump is filled with oil, it shall not be lifted any-
more.
The design of the base frame is such that transport of the vacuum pump
can be made with a Europe pallet truck.
lMake sure before every transport that the oil has been drained out
of the vacuum pump.
The packaging material must be disposed of in accordance with local and
national regulations.
This handbook is contained in the delivery package.
Storage
Temporary storage
lMake sure that the intake and exhaust flanges are closed (put on the
protective caps included in the delivery package of the vacuum
pump).
lStore the vacuum pump
–if possible, the vacuum pump should be stored in its original
packaging,
–indoors,
–dry,
–in a dust-free and
–vibration-free room
Removal of the vacuum pump
Before starting a vacuum pump that has been stored outside the building
for a while, the vacuum pump must be moved to a room with ambient
temperature, where it should rest for a day.
Preservation
If the vacuum pump will be exposed to unfavourable ambient conditions
(for example, aggressive environment, frequent temperature changes),
begin immediately with preservation work on the vacuum pump.
In case of favourable ambient conditions, perform preservation work on
the vacuum pump if a storage period of more than three months is
planned.
lMake sure that all openings are hermetically sealed; use adhesive
tape to fasten loose parts (seal rings, flat seals, etc...)
NOTE: VCI stands for “Volatile Corrosion Inhibitor”. VCI-products (film,
paper, cardboard, foam) evaporate a substance that condenses in mole-
cular thickness on the packed good and by its electro-chemical properties
effectively suppresses corrosion on metallic surfaces. However, VCI-pro-
ducts may attack the surfaces of plastic and elastomers.
If in doubt, please contact your nearest distributor. VCI packaging provi-
des several years of protection against corrosion, even under the
harshest of conditions: overseas shipment, extended storage before use.
lWrap the vacuum pump in VCI film
lStore the vacuum pump
–if possible, the vacuum pump should be stored in its original
packaging,
–indoors,
–dry,
–in a dust-free and
–vibration-free room
Start-up of the vacuum pump after storage
lMake sure that all protective elements, stoppers or adhesive tapes
attached before preservation have been removed
lSwitch in the vacuum pump in the sequence described in the chapter
“Installation and start-up”.
Installation and start-up
Necessary installation instructions
CAUTION
If the necessary installation instructions are not followed and particu-
larly in the case of inadequate cooling.
Risk of damage to and total destruction of the vacuum pump and its
components!
Risk of personal injury!
The necessary installation instructions must be followed.
lMake sure that the integration of the vacuum pump is carried out
such that the essential safety requirements of the Machine Directive
2006/42/EC are complying with (in the responsibility of the designer
of the machinery into which the vacuum pump is to be incorporated;
see also the note in the EC-Declaration of Conformity).
WARNING
Local regulations regarding the motors and electric control elements
must be observed when installing the vacuum pump in potentially
explosive environments. Make sure before start-up that all safety
measures have been followed.
Mounting position and space
lMake sure that the environment of the vacuum pump is not
potentially explosive.
lMake sure that the following ambient conditions are fulfilled:
–Ambient temperature: (-15)+8 to 40°C
Storage HO 0429-0441 F
Page 8 0870536238 (En)

–Ambient pressure: atmosphere
–Humidity ranges: 20 to 95 %
–Altitude: up to 1000 m
With ambient temperatures lower than +8°C, a misture of water and
ethylene glycol should be used as an antifreeze and cooling liquid. Mix-
ture ratio: maximum 40% ethylene glycol/ minimum 60% water.
This antifreeze protection depends of the properties of the used ethylene
glycol.
NOTE: In order to avoid overheating of the vacuum pump, an undistur-
bed fresh-air flow to the pump is necessary
In the case of a special operating environment, please contact your local
Busch Agency.
lMake sure that the environmental conditions comply with the pro-
tection class of the drive motor (according to the nameplate)
lMake sure that the vacuum pump will be placed or mounted hori-
zontally
lMake sure that the base for placement/ mounting base is even
lMake sure that the vacuum pump is easily accessible and that the
selected installation site fulfills the requirements for assembly/
dismantling.
lMake sure that the vacuum pump is at least 1 m away from any wall
to ensure good cooling.
lMake sure that no temperature-sensitive parts (for example, of plas-
tic, wood, cardboard, paper, electronic parts) come into contact with
the hot surfaces of the vacuum pump.
lMake sure that the installation site or assembly area is ventilated in
such a way that adequate cooling of the vacuum pump is ensured.
CAUTION
The surface temperature of the vacuum pump can exceed 90°C when
the vacuum pump is in operation.
Danger of burns!
lMake sure that no-one can touch the vacuum pump accidentally.
If necessary, attach safeguards.
lMake sure that the oil sight glasses are easily accessible
If oil changes are to be made on site:
lMake sure that the oil drain and oil filler plugs are easily accessible.
Inlet connection
lMake sure that the protection that was attached to prevent penetra-
tion of particles during transport has been removed before the va-
cuum pump is connected to the vacuum line.
CAUTION
Do not put hands into the inlet aperture.
Risk of body damage!
CAUTION
The intake of liquids or solid particles can lead to the destruction of
the vacuum pump or lead to a high explosion danger.
The Huckepack vacuum pumps are supplied with loose-packed suction
screens: a fine screen (1) and a standard screen (2).
These screens must be assembled before the suction inlet. They prevent
dirt particles from entering into the vacuum pump.
The fine screen must be dismantled after about 20 working hours. The
standard screen remains in place.
If the vacuum pump has been supplied with a suction flange, both
screens are already assembled in the flange.
lMake sure that the nominal diameter of the intake line is at least
equal to the diameter of the intake flange of the vacuum pump to
prevent a drop in the performance of the vacuum pump in the case
of a smaller cross-section.
lMake sure that the vacuum pump is connected with leakproof lines.
If some little particles should appear in the process, take all useful mea-
sures in order to avoid that these particles enter the pump.
CAUTION
When the intake lines have been connected, make sure that the sys-
tem does not leak. Leakages of dangerous substances must be
prevented!
lMake sure that the intake lines do not exercise any force on the in-
take flange. Mount bellows if necessary.
In the case of long suction lines, the line cross-section should be larger
than the intake flange to prevent a drop in the performance of the va-
cuum pump. If you have any doubts, contact your Busch representative.
Discharge connection
CAUTION
Do not put hands into the outlet aperture.
Risk of body damage!
The following instructions for connection to the discharge only apply if
the sucked gas is discharged by the vacuum pump into a suitable envi-
ronment.
lMake sure that the protection that was attached to prevent penetra-
tion of particles during transport has been removed before the va-
cuum pump is connected to the vacuum line.
lMake sure that the nominal diameter of the exhaust line is at least
equal to the diameter of the exhaust flange of the vacuum pump to
prevent a drop in the performance of the vacuum pump in the case
of a smaller cross-section.
lMake sure that the vacuum pump is connected with leakproof lines.
CAUTION
When the discharge lines have been connected, make sure that the
system does not leak. Leakages of dangerous substances must be
prevented!
lMake sure that the discharge line is mounted in such a way that
condensates cannot penetrate into the vacuum pump (siphon trap,
gradient)
HO 0429-0441 F Installation and start-up
0870536238 (En) Page 9
2
1

lMake sure that the discharge lines do not exercise any force on the
discharge flange. Mount bellows if necessary.
In case of long discharge lines, the line cross-section should be larger
than the discharge flange to prevent a drop in the performance of the
vacuum pump. If you have any doubts, contact your Busch representa-
tive.
Electrical connection/ Checks
lMake sure that the regulations of the Electromagnetic Compatibility
Directive 2014/30/EU as well as standard EN norms, safety directi-
ves and especially local and national regulations are observed (this is
the responsibility of the manufacturer of the system into which the
vacuum pump is integrated according to the Declaration of Confor-
mity).
lMake sure that the mains power supply corresponds to the data on
the nameplate of the motor.
lMake sure that an overload cut out according to EN 60204-1 is pro-
vided for the motor.
lMake sure that the drive of the vacuum pump is not disturbed by
any electric or electromagnetic interferences. If you have any doubts,
contact your Busch representative.
Connecting cooling water
The cooling water connection can be made with flexible hoses or tubes.
The cooling water outlet must be without pressure.
The cooling water should match with the following requirements:
–Cooling water pressure: 3¼8 bar.
–Cooling water temperature: 15°C (max. 40°C).
–Water hardness: 12 dH
Water must be neutral and clean. The water outlet must be without
pressure. Hose liner LW 13.
Installation and start-up HO 0429-0441 F
Page 10 0870536238 (En)

Drive
Functional diagram HO 0429-0441 F with radiator cooling
HO 0429-0441 F Installation and start-up
0870536238 (En) Page 11

Functional diagram HO 0429-0441 F with direct cooling
Installation and start-up HO 0429-0441 F
Page 12 0870536238 (En)
1 Dust separator
2 Shut o tap
3 Temperature regulating valve
LS+
0206

Legend of functional diagram
Designation Description Function
TSA+/0101 Resistance thermo-
meter (PT100)
Warning and alarm in case of too
high cooling water temperature
TSA+/0102 Resistance thermo-
meter (PT100)
Warning and alarm in case of too
high exhaust gas temperature
TSA+/0103 Resistance thermo-
meter (PT100)
Warning and alarm in case of too
high belt tension jack tempera-
ture
TSA+/0104 Safety thermostat Alarm in case of too high hou-
sing temperature 1st stage
TSA+/0105 Safety thermostat Alarm in case of too high hou-
sing temperature 2nd stage
LSA-/0201 Level switch Warning in case of low oil level
in lubricant tank
LS-/0202 Level switch Alarm in case of low oil level in
lubricant tank
LSA-/0203 Level switch Warning in case of low flushing
liquid level in flushing liquid tank
LS-/0204 Level switch Alarm in case of low flushing
liquid level in flushing liquid tank
PSA+/0301 Pressure sensor Alarm in case of too high gas
pressure at pump outlet
SSA-/0401 Speed controller Alarm in case of too high or too
low speed of oil pump
LS+/0205 Level switch Alarm in case of high flushing
liquid level in seal fluid separator
LS+/0206 Level switch Alarm in case of high flushing
liquid level in Duosec
Drive process
In case of alarm release through LS-/022, PSA+/0301, TSA+/0101,
TSA+/0102, TSA+/0103, TSA+/0104, TSA+/0105, SSA-/0401,
LS-/0204, LS+/0205 or LS+/0206, the vacuum pump should be stop-
ped.
Moreover, in case of use of the pump to forward mixtures of explosive
gases and vapors, the utilisation of a protective motor switch is advised.
Adjustment values
The level switch LS+/0205, LS+/0206 and the safety thermostats
TSA+/0104 et TSA+/0105 have fixed adjustment values. They cannot be
modified.
For the resistance thermometers and the pressure sensor, the following
alarm values, i. e. switch-off values, should be adjusted:
Adjustment
values (Level
switches and
thermostats
HO 0429 F HO 0433 F HO 0437 F HO 0441 F
TSA+/0101
Warning
(option)
80°C 90°C 95°C 100°C
TSA+/0101
Alarm =
Switching off
85°C 95°C 100°C 105°C
TSA+/0102
Warning
205°C 205°C 225°C 220°C
TSA+/0102
Alarm
210°C 210°C 230°C 225°C
TSA+/0103
Warning
85°C 85°C 95°C 95°C
TSA+/0103
Alarm
95°C 95°C 100°C 100°C
PSA+/0301
Warning
0.15 bar 0.15 bar 0.15 bar 0.15 bar
PSA+/0301
Alarm
0.2 bar 0.2 bar 0.2 bar 0.2 bar
Trip values for
thermostats HO 0429 F HO 0433 F HO 0437 F HO 0441 F
TSA+/0104
Alarm
106°C 106°C 106°C 106°C
TSA+/0105
Alarm
106°C 106°C 106°C 106°C
HO 0429-0441 F Installation and start-up
0870536238 (En) Page 13

As an option, an alarm can be set up, see following figures.
The speed controller is factory adjusted to the nominal speed. If this
value is lower or higher of 100 rpm (nmin/ nmax), an alarm releases.
The drive apparatus of the speed controller is wholly configurated in the
factory. The configuration should not be modified. The following tablet
shows the configuration of the drive apparatus.
Menu Parameters Adjusting
HO 0429 F /
HO 0433 F
Adjusting
HO 0437 F /
HO 0441 F
Main menu Unit rpm rpm
Service ON pass ON pass
Password 1234 1234
Input Line monitor ON LB ON LB
ON SC ON SC
Smooth 0 0
P/ turn 2 2
Filter OFF OFF
Start up 5 sec. 5 sec.
Output Real 1 MIN/ MAX MIN MIN
Trip 2100 1200
Hyst 39,9 39,9
Mode PASSIVE PASSIVE
Alarm freeze OFF OFF
Output Real 2 MIN/ MAX MAX MAX
Trip 2300 1400
Hyst 40,2 40,2
Mode PASSIVE PASSIVE
Alarm freeze ON ON
Installation and start-up HO 0429-0441 F
Page 14 0870536238 (En)

Working drive procedure
HO 0429-0441 F Installation and start-up
0870536238 (En) Page 15

Installation
Mounting
lMake sure that the “Necessary installation instructions” are follo-
wed.
lFasten or install the vacuum pump at its final installation site.
Connecting electrically
WARNING
Risk of electrocution, risk of damage.
Electrical installation must be performed by a suitably qualified elec-
trician who knows and follows the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100,
- IEC Report 664 or DIN VDE 0110,
- VBG 4 or corresponding national regulations on accident
prevention
CAUTION
The circuit diagrams described below conform to the standard. Other
circuit diagrams might be used. This depends on the particular order
and the market.
Risk of damage to the motor!
Check the connection of the motor inside the terminal box according
to the circuit diagram.
CAUTION
Voltage and frequency on the nameplate must agree with the supply
voltage. The frequency of the motor electric supply should be 50 Hz.
The running with a frequency commutator is not authorized.
All electrical devices apart from the motor are connected to the terminal
box. All connections can be seen in the wiring diagram. A copy of the
wiring diagram can be found in the terminal box as well as in this instal-
lation and repair manual. All devices must be connected into intrinsically
safe electric circuits in accordance with EN 60079-11.
The drive motor must be protected against overloads according to VDE
0113. Consider also the installation manual of the motor delivered simul-
taneously.
lElectrically connect the drive motor
lConnect the protective earth conductor
Delta connection (Low voltage)
Star connection (High voltage)
CAUTION
Operation in the wrong direction of rotation can destroy the vacuum
pump in short time.
Risk of explosion!
Prior to starting-up it must be made sure that the vacuum pump is
operated in the proper direction.
Looking at the motor fan cover, the direction of rotation is counterclock-
wise.
To check the direction of rotation of the pump, flick the ON/ OFF
switch. If the direction of rotation has to be changed:
uExchange two of the three feeder leads.
The electric data of the individual devices figure on the following table.
The device for trigger impulses of the speed relay should be assembled
outside the area with explosion risk (see enclosure).
Installation and start-up HO 0429-0441 F
Page 16 0870536238 (En)
L1
L3 L 2
W2 V2
U2
U1
W1 V1
W2 V2U2
U1 W1 V1
L1 L3L2
W2 V2U 2
U1 W1 V1
L1 L3L2
L1
L3 L2
W2
V2
U2
U1
W1
V1

Designation Description Explosion
protection
IlCiUiIiPi
TSA+/0101 Resistance thermometer (PT100) Ex ia ** ** - - 11mW
TSA+/0102 Resistance thermometer (PT100) Ex ia ** ** - - 11mW
TSA+/0103 Resistance thermometer (PT100) Ex ia ** ** - - 11mW
TSA+/0104 Safety thermostat
(break contact)
Ex ib II C T6 ** ** 45V 5A -
TSA+/0105 Safety thermostat
(break contact)
Ex ib II C T6 ** ** 45V 5A -
LSA-/0201 Level switch
(break contact)
Ex ia 40mH8nF 60V 0,1A -
LS-/0202 Level switch
(break contact)
Ex ia 40mH8nF 60V 0,1A -
LSA-/0203 Level switch
(break contact)
Ex ia 40mH8nF 60V 0,1A -
LS-/0204 Level switch
(break contact)
Ex ia 40mH8nF 60V 0,1A -
PSA+/0301 Pressure sensor Ex ia 110mH19nF 27,3V 0,14A 0,9W
SSA-/0401
Proximity switch Ex ia 50mH70nF 16V 25mA 34mW
Speed controller KFA-DWB-1.D See ATEX catalogue
LS-/0205 Level switch Customized execution
IlCiUiIiPi
Measuring transmitter 4-20 mA for resistance ther-
mometer (option) TMT 187 BFI
Ex ia IIC
INPUT
- - £30VDC £100mA £0,75W
IlCiUiIiPi
Measuring transmitter 4-20 mA for resistance ther-
mometer (option) TMT 187 BFI
Ex ia IIC
OUTPUT
4.5mH 709nF £8.2V £4.6mA £9.35mW
**Negligent ordinary little equipment according to EN 60079-11
HO 0429-0441 F Installation and start-up
0870536238 (En) Page 17

Measuring transmitter for the resistance
thermometer (option)
Assembly In connecting head
Manufacturer Endress + Hauser
Type TMT 187 BFI
Outlet 4-20 mA
Protection Ex ia IIC T4
Measuring range 0° to +250°C
Terminal layout
Function check
Measuring the analog 4-20 mA output signal or following failure signals:
Measurement range undercut Linear fall to 3.8 mA
Measurement range excess Linear rise to 3.8 mA
Sensor break; sensor short circuit ³21,0 mA
Fault finding and repairs
Troubleshooting for PT100 - Connection
Fault Cause Action/ cure
Current
(³21,0 mA)
Sensor defective Check sensor
Incorrect RTD
connection
Connect the cables
correctly (see connection
diagram)
Incorrect 2 wire
connection
Connect the cables
correctly (polarity,
see terminal layout)
No power supply on the
2 wire connection
Check current loop; the
supply should be > 8 V
Head transmitter
defective
Replace head transmitter
Incorrect or
inaccurate
measured value
Sensor is incorrectly
installed
Reinstall sensor correctly
Heat dissipation via
sensor
Monitor sensor
installation positioning
Sensor connection
(2 wire)
Monitor sensor
connection
Output variables
Output signal (analog) ·Output signal: 4...20 mA, 20...4 mA;
·Transmission as: temperature linear
·Input current required: £3,5 mA
·Current limit: £23 mA
Failure signal (fault
monitoring)
·Measurement rrange undercut:
linear drop to 3,8 mA
·Exceeding measurement range:
linear rise to 20,5 mA
·Sensor breakage; Sensor short circuit:
³21,0 mA
Maximum load (V power supply -8V) / 0,022 A
Switch on delay 4 s (during power up Ia= 3,8 mA)
Galvanic isolation (In/ out) Ù = 3,75 kV AC
Pressure sensor (PSA+/0310)
Connection:
See also terminal plan.
Output: 4...20 mA, linear from 3,9...21 mA or in case of transgression
step to 3,8 mA or 22 mA.
Permitted load: Rl max (V S actual -V S min)/ 22 mA (see schema)
Installation and start-up HO 0429-0441 F
Page 18 0870536238 (En)
Head transmitter wiring
plug occupation
connection PRECONT S/D with plug M12x1
signal 4...20 mA - 4 pin
1 (brown)
3 (blue)

First filling with cooling water
At first start-up or start-up after having drained the cooling water, the
vacuum pump must be filled as follows:
Non circulating cooling
lRemove the hose at the water outlet
lOpen the shut-off tap
lOpen the magnetic valve
lOpen the water supply and fill with water until water overflows
lConnect the hose at the water outlet
Circuit cooling with thermostat for water circulation
lOpen the relief cock
lFill with cooling water
lSwitch the pump on for a short time so that the air bubbles come up
in the feed pipe
lClose the relief cock
Connecting lines/ pipes
lConnect the intake lines
lConnect the discharge lines
lMake sure that all caps, safeguards and similar covers are mounted
lMake sure that the inlet and outlet for the cooling air are not cove-
red or closed and that the flow of cooling air is not impaired in any
way.
Saving the operating parameters
As soon as the vacuum pump is working under normal conditions after
being switched on:
lMeasure the working current of the motor and save it as reference
value for all future maintenance and repair work
Seal fluid filling
The Huckepack vacuum pumps are generally delivered without seal
fluid (see the chapter “Seal fluid types” for information on the recom-
mended seal fluids).
lPrepare the quantity of seal fluid specified in the table “Seal fluid
quantity”.
NOTE: The quantity of seal fluid specified in the installation handbook is
of informative nature only. Check the seal fluid level on the seal fluid
vessel on the vacuum pump.
CAUTION
Operation without seal fluid will ruin the vacuum pump in short time.
Prior to commissioning, it must be made positively sure that seal fluid
is filled in.
lUnscrew the filler cap on the top of the seal fluid vessel
lFill in seal fluid through the seal fluid screen on the vessel inlet
lMake sure that the seal level lies upon the indicated limit of the seal
fluid vessel
lMake sure that the seal ring is inserted into the seal fluid fill cap and
undamaged, replace if necessary
lScrew on the filler cap on the top of the seal fluid vessel
CAUTION
The vacuum pump may not be lifted anymore when it has been filled
with seal fluid.
lMake sure before every transport that the seal fluid has been drained
out of the vacuum pump
CAUTION
The vacuum pump must remain in an horizontal position when it has
been filled with seal fluid.
Lubrication system
The Huckepack vacuum pumps are lubricated. Besides oil other seal
fluids are possible. Please contact your local Busch representative or re-
quest our leaflet “Special Seal Fluids for Vacuum Pumps”.
The exact measurable quantities of seal fluid are transported through
tubes by the seal fluid pump directly to the lubrication spots.
The seal fluid pump
The seal fluid pump supplies the different lubrication spots with seal
fluid. The measuring of the seal fluid can be varied directly by the seal
fluid pump.
The seal fluid pump is connected directly to the LP-rotor. Therefore, the
rotational speed is the same as of the LP-rotor.
The seal fluid pump functions with lifting cylinders. The lifting is adjus-
table in order to be able to dose the seal fluid quantity exactly. The seal
fluid pump has eight connections for seal fluid tubes.
HO 0429-0441 F Installation and start-up
0870536238 (En) Page 19
Crank
Adjustment for slide ring lubrication
Ring 1
Adjustment for vane lubrication
Ring 2
MIN
MIN
MAX
MAX
MIN
MAX
MIN
MAX
Maximum load resistance
in dependance of the supply voltage

NOTE: The values below are standard values for chemical use. The quan-
tity of seal fluid depends on the conditions of the process. In case of use
of the vacuum pump in areas with explosion risk, the quantity of seal
fluid should not be reduced. However for the pump ring 1, it can be in-
creased.
When pumping inert gas without corrosive components seal fluid rate
can be reduced down to ½ (control value of scale).
Original calibration
of the seal fluid
pump
HO 0429 F HO 0433 F HO 0437 F HO 0441 F
Lubrication fluid
pump
8 connections,
internal gear ratio
75 : 1 75 : 1 25 : 1 25 : 1
Slide ring
lubrication
Ring 1
½ ½ ½ ½
Vane lubrication
Ring 2 MAX MAX ½ ½
Total consumption
of seal fluid
285 285 536 536
A variation of seal fluid consumption of about +/- 8% must be conside-
red as acceptable, based on measured results.
Different adjustment of the oil pump can be done depending on custo-
mer process conditions after validation by Busch.
Adjustment of the seal fluid pump
lTurn off the vacuum pump
lUnscrew the tightening nuts
lAdjust the adjustment disc to the required seal fluid lift
Priming of the seal fluid pump
lTake off the cover of the seal fluid pump
lTurn the crank of the seal fluid pump anticlockwise until the seal
fluid reaches the several lubrication spots through the pipes. To
check if oil leaks, unscrew the screwed connections of the oil pump.
Then tighten again the screwed connections.
lRemove the crank
The seal pump is now ready for operation.
Adjustment depending on the direction of
rotation
lOnly adjust the seal fluid lift with the pump switched off. The adjust-
ment of the seal fluid pump is from "0"(min) to "1" (max) in the di-
rection of the arrow which has the same direction as the arrow label
of the motor.
Recommendations on operation
Application
WARNING
The vacuum pump is designed for use under the conditions specified
here.
If these conditions are not met, there is a risk of damage to or total
destruction of the vacuum pump and its components!
The vacuum pump may only be switched on under the specified
conditions.
The Huckepack vacuum pumps are designed for use in the field of coarse
and fine vacuum.
They can be used to suck gases and gas mixtures.
WARNING
When using toxic, inflammable and/ or explosive gases, make sure
that the system corresponds in design to applicable local and natio-
nal safety regulations and that all applicable measures are followed.
All product-specific safety regulations must be observed.
Solid particles must not get into the vacuum pump. Procedural errors can
result in the vacuum pump drawing-in a certain quantity of liquid. If the
vacuum pump has sucked in liquid, a short drying time is necessary at
the end of the procedure.
There are different filters and separators to fit in series that can be found
in our accessory program.
To pump condensable vapours, a gas ballast valve should be installed.
The vacuum pump should run for 30 minutes prior to operation with the
inlet connection closed, in order to reach the operating temperature of
75°C. Only at this operating temperature can condensable vapours be
pumped. After use the pump should be left running for an additional 30
minutes to clear the lubrication fluid of condensate.
The Huckepack vacuum pump is intended for use in a potentially
non-explosive environment.
Max. permissible number of startings per hour: 12.
Installation and start-up HO 0429-0441 F
Page 20 0870536238 (En)
Screwed
connections
2
4
6
1
5
3
1 Spring
2 Lifting
3 Rolling ring
4 Adjustment ring
5 Tightening nut
6 Pump shaft