BUSCH R5 RU 0050 B User manual

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R5
Rotary Vane Vacuum Pumps
RU 0050 B, RU 0070 B
Instruction Manual
0870167126 | A0003_en-US | Original instructions 9/28/2022

Table of Contents
2 | 36 Instruction Manual R5 RU 0050-0070 B_EN_en
Table of Contents
1 Safety..................................................................................................................................................................... 3
2 Product Description............................................................................................................................................. 4
2.1 Operating Principle ............................................................................................................................................. 5
2.2 Intended Use ....................................................................................................................................................... 5
2.3 Standard Features............................................................................................................................................... 5
2.3.1 Variable Speed Drive ............................................................................................................................ 5
2.3.2 LED-Display ............................................................................................................................................ 5
2.3.3 I/O and Communication Port .............................................................................................................. 6
2.4 Optional Accessories........................................................................................................................................... 6
2.4.1 PC-Software ........................................................................................................................................... 6
2.4.2 Manual Control Unit ............................................................................................................................. 6
3 Transport .............................................................................................................................................................. 7
4 Storage .................................................................................................................................................................. 9
5 Installation ........................................................................................................................................................... 10
5.1 Installation Conditions........................................................................................................................................ 10
5.2 Connecting Lines / Pipes .................................................................................................................................... 11
5.2.1 Suction Connection............................................................................................................................... 11
5.2.2 Discharge Connection .......................................................................................................................... 11
5.3 Filling Oil............................................................................................................................................................... 12
6 Electrical Connection........................................................................................................................................... 13
6.1 Machine delivered with a Variable Speed Drive.............................................................................................. 13
6.2 I/O and Communication Port Schematic.......................................................................................................... 14
7 Commissioning..................................................................................................................................................... 16
7.1 Continuous Operation ........................................................................................................................................ 16
7.2 Fault Reset............................................................................................................................................................ 17
8 Maintenance......................................................................................................................................................... 18
8.1 Maintenance Schedule ....................................................................................................................................... 19
8.2 Oil Level Inspection............................................................................................................................................. 20
8.3 Oil Change............................................................................................................................................................ 20
8.4 Exhaust Filter Change......................................................................................................................................... 21
9 Overhaul................................................................................................................................................................ 23
10 Decommissioning................................................................................................................................................. 24
10.1 Dismantling and Disposal .................................................................................................................................. 24
11 Spare Parts............................................................................................................................................................ 25
12 Troubleshooting................................................................................................................................................... 26
13 Circuit Diagram .................................................................................................................................................... 28
14 Technical Data...................................................................................................................................................... 29
15 Oil........................................................................................................................................................................... 30
16 EU Declaration of Conformity............................................................................................................................. 31
17 UK Declaration of Conformity ............................................................................................................................ 32

Safety | 1
Instruction Manual R5 RU 0050-0070 B_EN_en 3 | 36
1 Safety
Prior to handling the machine, this instruction manual should be read and understood. If anything
needs to be clarified, please contact your Busch representative.
Read this manual carefully before use and keep for future reference.
This instruction manual remains valid as long as the customer does not change anything on the
product.
The machine is intended for using under monitored laboratory conditions. It must be handled only
by technically trained personnel.
Always wear appropriate personal protective equipment in accordance with the local regulations.
The machine has been designed and manufactured according to state-of-the-art methods. Never-
theless, residual risks may remain, as described in the following chapters and in accordance with the
chapter Intended Use [➔5]. This instruction manual highlights potential hazards where appropri-
ate. Safety notes and warning messages are tagged with one of the keywords DANGER, WARNING,
CAUTION, NOTICE and NOTE as follows:
DANGER
... indicates an imminent dangerous situation that will result in death or serious injuries if not
prevented.
WARNING
... indicates a potentially dangerous situation that could result in death or serious injuries.
CAUTION
... indicates a potentially dangerous situation that could result in minor injuries.
NOTICE
... indicates a potentially dangerous situation that could result in damage to property.
NOTE
... indicates helpful tips and recommendations, as well as information for efficient and trou-
ble-free operation.

2 | Product Description
4 | 36 Instruction Manual R5 RU 0050-0070 B_EN_en
2 Product Description
LED VSD
COM
OSNP EF IN OUT AF
EB MC
OFP ODP OSG
Description
LED LED-display (A1 only) VSD Variable speed drive
NP Nameplate OS Oil separator
EF Exhaust filter IN Suction connection
OUT Discharge connection AF Axial fan
OFP Oil fill plug ODP Oil drain plug
OSG Oil sight glass EB Eye bolt
COM I/O and communication port MC Mains conection
NOTE
Technical term.
In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum pump’.
NOTE
Illustrations
In this instruction manual the illustrations may differ from the machine appearance.

Product Description | 2
Instruction Manual R5 RU 0050-0070 B_EN_en 5 | 36
2.1 Operating Principle
The machine works on the rotary vane principle.
The oil seals the gaps, lubricates the vanes and takes away compression heat.
Exhaust filters separate the oil from the discharged gas.
2.2 Intended Use
WARNING
In case of foreseeable misuse outside the intended use of the machine.
Risk of injuries!
Risk of damages to the machine!
Risk of damages to the environment!
●Make sure to follow all instructions described in this manual.
The machine is intended for the suction of air and other dry, non-aggressive, non-toxic and non-ex-
plosive gases.
Conveying of other media leads to an increased thermal and/or mechanical load on the machine
and is permissible only after a consultation with Busch.
The machine is intended for the placement in a non-potentially explosive environment.
The machine is designed for indoor installation, in case of outdoor installation, ask your Busch rep-
resentative in order to take specific precautions.
The machine is capable of maintaining ultimate pressure, see Technical Data [➔29].
The machine is suitable for continuous operation under certain conditions, see Continuous Operation
[➔16].
Permitted environmental conditions, see Technical Data [➔29].
2.3 Standard Features
2.3.1 Variable Speed Drive
The machine is equipped in standard with a variable speed drive.
2.3.2 LED-Display
The LED-Display (LED) indicates the status of the machine.