REXROTH PGZ series 1X User manual

Gerotor pump
PGZ
Series 1X
Replaces: 10.2013
English
Instruction manual
RE 10545-B/11.2013

The data specified above serve to describe the
product. Should information be provided on
use, these are only examples of applications
and suggestions. Information from the catalog
are not assured properties. The information
given does not release the user from the
obligation of own judgment and verification.
Our products are subject to a natural wear
and aging process.
© This document, as well as the data,
specifications and other information set forth in
it, are the exclusive property of Bosch Rexroth
AG. It may not be reproduced or given to third
parties without its consent.
The cover shows an example application. The
product delivered may differ from the image on
the cover.
The original instruction manual was created in
the German language.

RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
3/40
BG: Използването на този продукт може да се извърши едва тогава, когато разполагате с това упътване за
употреба в разбираема за Вас версия на езика и сте разбрали неговото съдържание. Ако това не етака,
обърнете се към Вашия партньор Bosch Rexroth или към компетентен сервиз. Ще го намерите
вwww.boschrexroth.com.
CS: Tento výrobek se smí používat jedině tehdy, máte-li k dispozici tento návod k obsluze v pro vás srozumitelné
jazykové verzi a rozumíte-li celému jeho obsahu. Pokud tomu tak není, obraťte se na svou kontaktní osobu u firmy
BoschRexroth nebo na příslušné servisní středisko. To naleznete také na internetové adrese www.boschrexroth.
com.
DA: Dette produkt må ikke anvendes, før du har modtaget og læst driftsvejledningen på et for dig forståeligt sprog
og har forstået indholdet. Hvis det ikke er tilfældet, bedes du kontakte din kontaktperson hos Bosch Rexroth eller
den ansvarlige kundeserviceafdeling. Den kan du finde på hjemmesiden www.boschrexroth.com.
DE: Die Verwendung dieses Produkts darf erst dann erfolgen, wenn Sie diese Betriebsanleitung in einer für Sie
verständlichen Sprachversion vorliegen und den Inhalt verstanden haben. Ist dies nicht der Fall, wenden Sie sich
bitte an Ihren Bosch Rexroth Ansprechpartner oder die zuständige Servicestelle. Diese finden Sie auch unter www.
boschrexroth.com.
EL: Η χρήση αυτού του προϊόντος επιτρέπεται μόνο, εάν διαθέτετε τις παρούσες οδηγίες χρήσης σε κατανοητή
γλώσσα και εφόσον έχετε κατανοήσει το περιεχόμενό τους. Εάν δεν πληρούνται αυτές οι προϋποθέσεις, απευθυνθείτε
στους κατά τόπους αντιπροσώπους της Bosch Rexroth ή σε κάποιο εξουσιοδοτημένο σέρβις. Για τα σχετικά στοιχεία
επισκεφτείτε την ιστοσελίδα www.boschrexroth.com.
EN: This product may only be used if these operating instructions are available to you in a language version that you
can understand and if you have understood its content. If this is not the case, please contact your Bosch Rexroth
contact partner or the responsible service point. You can also find them under www.boschrexroth.com.
ES: Este producto únicamente podrá utilizarse cuando disponga de las instrucciones de servicio en un idioma que
entienda y haya entendido su contenido. En caso contrario, diríjase a su persona de contacto de BoschRexroth o al
servicio técnico competente, que podrá encontrar también en la dirección www.boschrexroth.com.
ET: Toodet tohib kasutada ainult siis, kui teil on olemas teie jaoks arusaadavas keeles kasutusjuhend ja te saate
selle sisust aru. Kui see nii ei ole, pöörduge oma Bosch Rexrothi esindaja või vastava teeninduse poole. Nende
kontaktandmed leiate aadressilt www.boschrexroth.com.
FI: Älä käytä tuotetta ennen kuin olet saanut käyttöohjeen omalla kielelläsi ja ymmärrät sen sisällön. Ota muussa
tapauksessa yhteyttä Bosch Rexroth -yhteyshenkilöösi tai valtuutettuun huoltoliikkeeseen. Yhteystiedot löydät
osoitteesta www.boschrexroth.com.
FR: Ce produit ne doit être utilisé que lorsque vous disposez des présentes instructions de service en une version
linguistique que vous comprenez et que vous avez compris son contenu. Si cela n‘est pas le cas, veuillez vous
adresser à votre interlocuteur Bosch Rexroth ou au service compétent. Vous trouvez les coordonnées également sur
le site www.boschrexroth.com.
HU: A terméket csak akkor szabad használni, ha ez a kezelési útmutató rendelkezésre áll az Ön számára érthető
egyik nyelven, és megértette annak tartalmát. Egyéb esetben forduljon a Bosch Rexroth kapcsolattartójához vagy az
illetékes szervizhez. Ezeket is megtalálja az alábbi címen: www.boschrexroth.com.
IT: Questo prodotto può essere impiegato solo se si dispone del presente manuale d‘uso in una lingua conosciuta e
se ne è stato compreso il contenuto. In caso contrario rivolgersi al referente Bosch Rexroth o al punto di assistenza
competente. Questi sono anche riportati sul sito www.boschrexroth.com.
LT: Naudoti šį produktą leidžiama tik turint šią vartotojo instrukciją Jums suprantama kalba ir jei supratote jos
turinį. Jei instrukcijos nesuprantate, prašome kreiptis į savo Bosch Rexroth konsultantą arba atsakingą aptarnavimo
tarnybą. Informaciją apie juos rasite adresu www.boschrexroth.com.

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Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
LV: Šo ierīci drīkst lietot tikai tad, ja šī ekspluatācijas instrukcija Jums ir pieejama kādā jums saprotamā valodā
un Jūs esat izpratis tās saturu. Pretējā gadījumā lūdzam vērsties pie attiecīgās „Bosch Rexroth“ kontaktpersonas
vai kompetentā servisa dienestā. Nepieciešamā informācija ir pieejama arī mūsu mājas lapā internetā www.
boschrexroth.com.
NL: U mag het product pas gebruiken, als deze bedieningshandleiding voor u beschikbaar is in een voor u
begrijpelijke taal en als u de inhoud daarvan begrepen heeft. Is dit niet het geval, neem dan a.u.b. contact op met
uw Bosch Rexroth contactpersoon of de servicepartner. Deze vindt u ook op www.boschrexroth.com.
NO: Dette produktet må ikke brukes før du har mottatt denne bruksanvisningen på et språk som du forstår, og du
har forstått innholdet. Hvis dette ikke er tilfellet, ta kontakt med din kontaktperson hos Bosch Rexroth eller den
ansvarlige kundeserviceavdelingen. Disse finner du også på www.boschrexroth.com.
PL:
Przed przystąpieniem do eksploatacji niniejszego produktu należy zapoznać się z instrukcją obsługi w Państwa
wersji językowej. Wprzypadku, gdy nie dołączono instrukcji w danym języku, należy zwrócić się z zapytaniem do
osoby kontaktowej BoschRexroth lub do odpowiedniego punktu obsługi. Listę takich punktów można znaleźć na
stronie www.boschrexroth.com.
PT:
Este produto só pode ser utilizado se o manual de instruções estiver disponível em um idioma compreensível
para você e se você tiver compreendido o conteúdo do mesmo. Se esse não for o caso, entre em contato com o seu
representante da Bosch Rexroth ou com a assistência técnica. Encontre-os em www.boschrexroth.com
RO: Aveţi voie să utilizaţi acest produs, doar după ce aţi primit acest manual de utilizare într-o versiune de limbă
inteligibilă pentru dumneavoastră şi aţi înţeles conţinutul său. Dacă aceste condiţii nu sunt îndeplinite, adresaţi-vă
persoanei dumneavoastră de contact de la Bosch Rexroth sau la service-ul Bosch Rexroth competent. Găsiţi aceste
service-uri la www.boschrexroth.com
RU: Использование данного продукта разрешается только после получения Вами настоящего руководства по
эксплуатации на русском языке и его внимательного изучения. Если у Вас нет руководства по эксплуатации,
обратитесь, пожалуйста, к ответственному за Ваш регион представителю Bosch Rexroth или в соответствующий
сервисный центр. Оно также находится на сайте www.boschrexroth.com.
SK: Tento výrobok sa smie používať až vtedy, keď ste dostali tento návod na prevádzku k dispozícii v pre vás
zrozumiteľnej jazykovej mutácii a obsahu ste porozumeli. V opačnom prípade sa, prosím, obráťte na vašu kontaktnú
osobu vBosch Rexroth alebo na zodpovedné servisné miesto. Nájdete ich tiež na www.boschrexroth.com.
SL: Z uporabo tega izdelka lahko pričnete šele, ko ste prebrali ta navodila za uporabo v vam razumljivem jeziku
in razumeli njihovo vsebino. Če navodila za uporabo niso na voljo v vašem jeziku, vas prosimo, da se obrnete na
kontaktno osebo podjetja Bosch Rexroth oz. pooblaščeni servis. Te lahko najdete tudi na www.boschrexroth.com.
SV: Denna produkt får inte användas förrän du har mottagit en bruksanvisning på ett språk som du förstår och sedan
har läst och förstått innehållet i. Om detta inte är fallet ber vi dig kontakta din kontaktperson på Bosch Rexroth eller
ansvarig kundservice. Dessa hittar du också på www.boschrexroth.com.
ZH: 使用该产品前,请您确保已拥有一份您所熟悉语言版本的使用说明书并已理解其内容。 如果尚未拥有,请向博世力士乐合
作伙伴或相关服务部门索取,也可登录 www.boschrexroth.com 下载。

RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
5/40Contents
Contents
1 About this documentation 7
1.1 Validity of the documentation 7
1.2 Required and supplementary documentation 7
1.3 Display of information 8
1.3.1 Safety instructions 8
1.3.2 Symbols 9
1.3.3 Abbreviations 9
2 Safety instructions 10
2.1 About this chapter 10
2.2 Intended use 10
2.3 Improper use 11
2.4 Personnel qualifications 11
2.5 General safety instructions 12
2.6 Product-specific safety instructions 13
2.7 Personal protective equipment 14
3 General instructions on damage to equipment and the product 15
4 Scope of supply 17
5 About this product 18
5.1 Product description 18
5.1.1 Assembly of the gerotor pump 18
5.2 Product identification 19
6 Transport and storage 20
6.1 Transporting the gerotor pump 20
6.2 Storing the gerotor pump 20
7 Installation 22
7.1 Unpacking 22
7.2 Installation conditions 22
7.3 Installation instructions 23
7.4 Required tools 24
7.5 Installing the gerotor pump 24
7.5.1 Preparation 24
7.5.2 Installing the coupling 25
7.5.3 Hydraulically connecting the gerotor pump 25
8 Commissioning 26
8.1 Preparing for commissioning 26
8.2 Initial commissioning 27
8.3 Recommissioning after standstill 27
9 Operation 28
10 Maintenance and repair 29
10.1 Maintenance 29
10.2 Repair 30
11 Removal and replacement 31
11.1 Required tools 31
11.2 Preparing for removal 31
11.3 Removing the axial piston unit 31
11.4 Preparing the components for storage or further use 31

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Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
Contents
12 Disposal 32
13 Extension and conversion 32
14 Troubleshooting 33
14.1 How to proceed for troubleshooting 33
14.2 Malfunction table 34
15 Technical data 37
16 Alphabetical index 38

About this documentation 7/40
RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
1 About this documentation
1.1 Validity of the documentation
This documentation applies to the following products:
•gerotor pump PGZ series 1X
This documentation is intended for machine/system manufacturers, fitters and
service technicians.
This documentation contains important information on the safe and appropriate
installation, transport, commissioning, maintenance, removal and simple
troubleshooting of the gerotor pump PGZ.
▶ Read this documentation completely and, in particular, chapter2 "Safety
instructions" on page 10 and chapter3 "General instructions on damage
to equipment and the product" on page 15 before you start work with the
gerotor pump.
1.2 Required and supplementary documentation
▶ Only commission the gerotor pump if the documentation marked with the book
symbol is available to you and you have understood and observed it.
Table 1: Required and supplementary documentation
Title Document number Document type
Gerotor pump, fixed displacement volume, type PGZ, series 1X
Contains the permissible technical data, operating condition, performance limits
and project planning notes
10545 Data sheet
General product information for hydraulic products
Contains general information on hydraulic products
07008 Instruction manual
Installation, commissioning and maintenance of hydraulic systems
Contains general information on installation, commissioning and maintenance
of hydraulic systems
07900 Data sheet
Mineral-oil based hydraulic fluid and related hydrocarbons
Describes the requirements on a mineral-oil based hydraulic fluid and related
hydrocarbons for the operation with Rexroth hydraulic components, and assists
you in selecting a hydraulic fluid for your hydraulic system.
90220 Data sheet
The gerotor pump PGZ is a system component.
Also observe the manuals for the other system components and the documentation
of the system manufacturer.

8/40 About this documentation
Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
1.3 Display of information
Standardized safety instructions, symbols, terms and abbreviations are used so that
you can use this documentation to work quickly and safely with your product. To give
you a better understanding they are explained in the sections below.
1.3.1 Safety instructions
This documentation includes safety instructions in chapter2.6 "Product-specific
safety instructions" on page34 and in chapter3 "General instructions on damage
to equipment and the product" on page15 and before a sequence of actions or an
instruction for action involving a risk of personal injury or damage to equipment.
The described danger prevention measures must be observed.
Safety instructions are set out as follows:
SIGNAL WORD
Type and source of danger!
Consequences in case of noncompliance
▶ Measure for danger prevention
▶ <List>
•Warning sign: draws attention to the danger
•Signal word: identifies the degree of the danger
•Type and source of danger: identifies the type and source of the danger
•Consequences: describes what occurs if the safety instructions are not complied with
•Precautions: states how the danger can be avoided
Table 2: Danger classes in accordance with ANSI Z535.6-2006
Warning sign, signal word Meaning
DANGER Identifies a dangerous situation that will result in death or
serious injuries if it is not avoided.
WARNING Identifies a dangerous situation that may result in death or
serious injuries if it is not avoided.
CAUTION Identifies a dangerous situation that may result in minor to
moderate injuries if it is not avoided.
NOTICE Damage to equipment: the product or the environment may
be damaged.

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RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
1.3.2 Symbols
The following symbols mark notes that are not safety-relevant but which increase the
understanding of the documentation.
Table 3: Meaning of the symbols
Symbol Meaning
If this information is disregarded, the product cannot be used and/or
operated to the optimum extent.
▶ Single, independent step
1.
2.
3.
Numbered instruction:
The numbers specify that the steps are completed one after the other.
1.3.3 Abbreviations
This documentation uses the following abbreviations:
Table 4: Abbreviations
Abbreviation Meaning
ATEX EU directive for explosion protection (Atmosphère explosible)
ISO International Organization for Standardization
RE Rexroth document in the English language

10/40 Safety instructions
Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
2 Safety instructions
2.1 About this chapter
The gerotor pump has been manufactured according to the generally accepted rules
of current technology. There is, however, still a danger of personal injury or damage
to equipment if this chapter and the safety instructions in this documentation are
not complied with.
▶ Read this documentation completely and thoroughly before working with the
gerotor pump.
▶ Keep this documentation in a location where it is accessible to all users at all
times.
▶ Always include the required documentation when you pass the gerotor pump
on to third parties.
2.2 Intended use
Gerotor pumps are hydraulic components. The product is exclusively intended for
being integrated in a machine/system or for being assembled with other components
to form a machine/system. The gerotor pump may only be commissioned after it has
been installed in the machine/system for which it is intended and the safety of the
entire system has been established in accordance with the Machine Directive.
During project planning, the basic principles of the EU Machine Directive or
comparable local regulations outside of the EU are to be observed.
The product is intended for the following use:
Gerotor pumps are intended for the assembly of hydraulic drive systems, particularly
in machine-, system- and aggregate construction.
▶ Observe the technical data, application and operating conditions and
performance limits as specified in data sheet 10545. Information about approved
hydraulic fluids can be found in data sheet10545.
The gerotor pump is intended for professional use and not for private use.
Intended use includes having read and understood the complete documentation,
especially the chapter 2 "Safety instructions" on page10.

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RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
2.3 Improper use
Any use other than that described as intended use shall be considered as improper
and is therefore impermissible.
Bosch Rexroth AG shall accept no liability whatsoever for damage resulting from
improper use. The user shall bear all risks arising from improper use.
The following foreseeable forms of misuse of the gerotor pump shall also be
considered to be faulty usage (this list does not claim to be exhaustive):
•Use outside the operating parameters approved in the data sheet (unless customer-
specific approval has been granted)
•Use for non-approved fluids, e.g.water or polyurethane components
•Use in explosive environments unless the component or machine/system has been
certified as compliant with ATEX directive 94/9/EC
•Use in aggressive atmospheres
•Use in aircraft and spacecraft
2.4 Personnel qualifications
The activities described in this documentation require basic mechanical and
hydraulic knowledge, as well as knowledge of the associated technical terms. For
transporting and handling the product, additional knowledge is necessary with
regard to working with a lifting device and the corresponding attachment equipment.
In order to ensure safe use, these activities may therefore only be performed by
appropriate qualified personnel or an instructed person under the direction and
supervision of qualified personnel.
Qualified personnel are those who can recognize possible hazards and institute
the appropriate safety measures due to their professional training, knowledge, and
experience, as well as their understanding of the relevant regulations pertaining
to the work to be done. Qualified personnel must observe the rules relevant to the
subject area and have the necessary hydraulics expertise.
Hydraulics expertise means, for instance:
•reading and fully understanding hydraulic schematic,
•fully understanding in particular the interrelationships regarding safety devices,
and
•having knowledge on the function and assembly of hydraulic components.
Bosch Rexroth offers training support for special fields.
You can find an overview of the training contents on the internet at:
http://www.boschrexroth.de/didactic.

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Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
2.5 General safety instructions
•Observe the applicable accident prevention and environmental protection
regulations.
•Observe the safety regulations and provisions of the country in which the product
is used/operated.
•Use Rexroth products only when they are in good technical order and condition.
•Persons who install, operate, remove or maintain Rexroth products must not
consume any alcohol, drugs or pharmaceuticals that may affect their ability to
respond.
•Only use Rexroth original accessories and spare parts to ensure there is no risk
to persons from unsuitable spare parts.
•Conform to the technical data and ambient conditions specified in the product
documentation.
•If unsuitable products are installed or used in applications that are of relevance
to safety, unexpected operating conditions may occur in the application which
could result in injury to persons or damage to equipment. For this reason, only use
the product in a safety-relevant application if this use is expressly specified and
permitted in the product documentation, for example in ex-protection applications
or in safety-related parts of a control system (functional safety).
•You may only commission the product if it has been determined that the end
product (e.g., machinery or a system) into which the Rexroth products are installed
complies with the country-specific provisions, safety regulations and standards of
the application.

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RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
2.6 Product-specific safety instructions
The following safety instructions apply for chapters 6 to 14.
WARNING
Pressurized machine/system!
Danger to life or risk of injury, serious injuries when working on machines/systems
not shutdown! Damage to equipment!
▶ Protect the complete system against being energized.
▶ Make sure that the machine/system is depressurized. Please follow the
machine/system manufacturer’s instructions.
▶ Do not disconnect any line connections, ports and components when the
machine/system is pressurized.
▶ Switch off all power-transmitting components and connections (electric,
pneumatic, hydraulic, mechanical) in accordance with the manufacturer's
specifications and secure them against being switched back on.
Escaping oil mist!
Risk of explosion, fire, health hazard, environmental pollution!
▶ Depressurize the machine/system and repair the leak.
▶ Only perform welding work when the machine/system is depressurized.
▶ Keep open flames and ignition sources away from the gerotor pump.
▶ If gerotor pumps are to be situated in the vicinity of ignition sources or powerful
thermal radiators, a shield must be erected to ensure that any escaped hydraulic
fluid cannot ignite, and to protect hose lines from premature aging.
Electrical voltage!
Risk of injury due to electric shock or damage to equipment!
▶ Always de-energize the relevant part of the machine/system before you install
the product. Protect the machine/system against being energized.

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Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
CAUTION
Hot surfaces on gerotor pump!
Risk of burns!
▶ Allow the gerotor pump to cool down sufficiently before touching it.
▶ Wear heat-resistant protective clothing, e.g. gloves.
Contact with hydraulic fluid!
Hazard to health/health impairment e.g. eye injuries, skin damage, toxication
during inhalation!
▶ Avoid contact with hydraulic fluids.
▶ When working with hydraulic fluids, strictly observe the safety instructions
provided by the lubricant manufacturer.
▶ Use your personal protective equipment (e.g., safety glasses, safety gloves,
suitable working clothes, safety shoes).
▶ If hydraulic fluid should, nevertheless, come into contact with your eyes or
bloodstream or is swallowed, consult a doctor immediately.
Escaping hydraulic fluid due to machine/system leakage!
Risk of burns and risk of injury due to escaping oil jet!
▶ Depressurize the machine/system and repair the leak.
▶ Never attempt to block or seal the leak or oil jet with a cloth.
2.7 Personal protective equipment
The personal protective equipment is the responsibility of the user of the
gerotor pump. Observe the safety regulations and provisions of your country.
All components of the personal protective equipment must be intact.

General instructions on damage to equipment and the product 15/40
RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
3 General instructions on damage to
equipment and the product
The following notes apply for chapters 6 to 14.
NOTICE
Danger from improper handling!
Product can be damaged!
▶ Do not expose the product to an impermissible mechanical load.
▶ Never use the gerotor pump as a handle or step.
▶ Do not place/lay any objects on the product.
▶ Do not strike the shaft of the gerotor pump.
▶ Do not set/place the pump on the shaft.
▶ Do not strike sealing surfaces (e.g., service line ports).
▶ Leave the protection covers on the gerotor pump until shortly before
the lines are connected.
Damage to equipment due to improper lubrication!
Product can be damaged or destroyed!
▶ Never operate the gerotor pump with insufficient hydraulic fluid. Make sure in
particular that the rotary group has sufficient lubrication.
Mixing of hydraulic fluids!
Product can be damaged!
▶ Before installation, remove all fluids from the gerotor pump to prevent mixing
with the hydraulic fluid used in the machine/system.
▶ Any mixing of hydraulic fluids of different manufacturers or different types of
the same manufacturer is not permissible in general.
Contamination of the hydraulic fluid!
The cleanliness of the hydraulic fluid has a considerable impact on the cleanliness
and service life of the hydraulic system. Contamination of the hydraulic fluid could
cause premature wear and malfunctions!
▶ Make sure that the working environment at the installation site is fully free of
dust and foreign particles in order to prevent contaminants, such as welding
beads or metal cuttings, from getting into the hydraulic lines and causing
product wear or malfunctions. The gerotor pump must be installed in a clean
condition.
▶ Use only clean ports, hydraulic lines and attachments (e.g., measuring devices).
▶ No contaminants may enter the ports when they are plugged.
▶ Before commissioning, make sure that all hydraulic connections are tight and
that all of the connection seals and plugs are installed correctly to ensure that
they are leakproof and fluids and contaminants are prevented from penetrating
the product.
▶ Use a suitable filter system to filter hydraulic fluid during filling to minimize
solid impurities and water in the hydraulic system.

16/40 General instructions on damage to equipment and the product
Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
NOTICE
Improper cleaning!
Product can be damaged!
▶ Plug all openings with suitable protective equipment.
▶ Never use solvents or aggressive detergents. Only clean the gerotor pump
with a lint-free cloth.
▶ Do not use a high-pressure cleaner for cleaning.
Environmental pollution due to incorrect disposal!
Careless disposal of the gerotor pump and its fittings, the hydraulic fluid and the
packaging material could lead to pollution of the environment!
▶ Dispose of the gerotor pump, hydraulic fluid and packaging in accordance
with the national regulations in your country.
▶ Dispose of the hydraulic fluid in accordance with the applicable safety data
sheet for the hydraulic fluid.
Escaping or spilling hydraulic fluid!
Environmental pollution and contamination of the ground water!
▶ When filling and draining the hydraulic fluid, always place a drip tray under the
gerotor pump.
▶ Use an oil binding agent if hydraulic fluid is spilled.
▶ Observe the information in the safety data sheet for the hydraulic fluid and the
specifications provided by the system manufacturer.
The warranty applies only to the delivered configuration.
The entitlement to warranty cover will be rendered void if the product is incorrectly
installed, commissioned or operated, or if it is used or handled improperly.

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RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
4 Scope of supply
2
3
1
Fig. 1: Gerotor pump PGZ
Included in the scope of supply are:
•Gerotor pump PGZ series 1X
The following parts are also installed on delivery:
•Flange cover for pressure port(1)
•Flange cover for suction port(2)
•Protection plug for shaft protection (3)

18/40 About this product
Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
5 About this product
Technical data, operating conditions, port dimensions and performance limits of the
gerotor pump can be found in data sheet 10545.
5.1 Product description
Hydraulic pumps of type PGZ are gerotor pumps with fixed displacement volume.
They mainly consist of: flange housing(1), shaft(2), the displacer elements inner
rotor(3) and geared ring (4), driving disk(5) and cover(6). They have a suction
portSand a pressure portP.
5.1.1 Assembly of the gerotor pump
1
2
S
P
4
3
5
6
P
R
S
Z
1 Flange housing
2 Shaft
3 Inner rotor
4 Geared ring
5 Driving disk
6 Cover
S Suction port
P Pressure port
Fig. 2: Assembly of the gerotor pump

About this product 19/40
RE 10545-B/11.2013, PGZ Series 1X, Bosch Rexroth AG
5.2 Product identification
The gerotor pump can be identified with the name plate. The following example
shows the name plate of a gerotor pump of type PGZ:
6
8 7
2 31
9
4
5
Made in Germany 7082
T
P
S
MNR: R901230032 FD: 89126
PGZ4-10/050RA07VE4
SN: 0000123
pN=15 bar
Fig. 3: A4VSO name plate gerotor pump PGZ
1 Manufacturer
2 Material number
3 Manufacturing date
4 Serial number
5 Nominal pressure
6 Area/plant number
7 Symbol according to ISO 1219
8 Designation of origin
9 Material description

20/40 Transport and storage
Bosch Rexroth AG, PGZ Series 1X, RE 10545-B/11.2013
6 Transport and storage
▶ Always observe the required ambient conditions for transport and storage,
see chapter6.2 "Storing the gerotor pump" on page 20.
Notes on unpacking can be found in chapter7.1 "Unpacking" on page22.
6.1 Transporting the gerotor pump
Due to the relatively light weight of the gerotor pumps, they contain no special
fixtures for transport and can be moved by hand.
Table 5: Dimensions and weights
Frame size PGZ4 PGZ5
Size 20 32 40 50 63 80 63 80 100 140
Weight kg 4.7 5.3 5.6 6.0 6.7 7.8 6.6 7.7 8.9 10.7
There is a danger of health damage when carrying gerotor pumps.
▶ Use your personal protective equipment (e.g., safety gloves, suitable working
clothes, safety shoes).
▶ Carefully place the gerotor pump components on the seating to prevent them
from being damaged.
6.2 Storing the gerotor pump
•The storage areas must be free from corrosive materials and gases.
•To prevent damage to the seals, ozone-forming equipment (e.g., mercury-vapor
lamps, high voltage equipment, electric motors, sources of electrical sparks or
electrical discharges) must not be operated in storage areas.
•The storage areas must be dry.
•Ideal storage temperature: +5°C to +20°C. The temperature should ideally remain
constant.
•Avoid high light irradiation (e.g., bright windows or direct fluorescent lighting).
•Do not stack gerotor pump and store them shock-proof.
•Do not store the gerotor pump on the shaft.
The maximum storage time is 24 months.
▶ Leave the gerotor pump in the delivery condition (coated in mineral oil).
▶ Fill the gerotor pump with mineral oil.
Dimensions and weights
Requirement
Maximum storage time
Storage up to 9 months
Storage up to 24 months
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