Schneider Airsystems UNM STL 1000-10-270 Installation instructions

G875606_001
2010/09/jbrg-08
Original operating manual Part 1 I/1 Part 2 II/1
Notice d’utilisation d’origine Partie 1 I/2 Partie 2 II/7
Manual de instrucciones original Parte 1 I/4 Parte 2 II/14
Originele gebruiksaanwijzing Deel 1 I/6 Deel 2 II/21
Originalbruksanvisning Del 1 I/7 Del 2 II/27
UNM STL 1000-10-270 UNM STL 780-15-270
H835000 H845000
UNM STL 1000-10-500 UNM STL 780-15-500
H836000 H846000

1a
01
06
11
18
09
13
08
12
14
10
07
19
02
03 04 05
17
16
22
23
21
15
n
5,5 995 1000 790
270
11
P
PS
60:40
10 5-35 40
810
P
min
P
max
T
min.
max.
11
000
2,47
82
400
50
3
16
m
238
1285
555
1620
HT
B
LpA1
UNM STL 1000-10-270

1b
01
06
11
18
09
12
08
13
14
10
07
19
02
03 0405
17
16
22
23
21
15
n
5,5 995 1000 790
500
11
P
PS
60:40
10 5-35 40
810
P
min
P
max
T
min.
max.
11
000
2,47
82
400
50
3
16
m
292
1380
625
1950
HT
B
LpA1
UNM STL 1000-10-500

1c
01
06
11
18
09
13
08
12
14
10
07
19
02
03 04 05
17
16
22
23
21
15
n
5,5 830 780 640
270
16
P
PS
60:40
10 5-35 40
1315
P
min
P
max
T
min.
max.
11
000
2,47
80
400
50
3
16
m
252
1285
555
1620
HT
B
LpA1
UNM STL 780-15-270

1d
01
06
11
18
09
12
08
13
14
10
07
19
02
03 0405
17
16
22
23
21
15
n
5,5 830 780 640
500
16
P
PS
60:40
10 5-35 40
1315
P
min
P
max
T
min.
max.
11
000
2,47
80
400
50
3
16
m
308
1380
625
1950
HT
B
LpA1
UNM STL 780-15-500

3a 4a
7a 7b
5a
6a

UNM STL 5,5 kW
II/1
GB
Table of contents - Part 1
1.1 Scope of delivery
– Compressor with instruction manual
– Documents accompanying compressed air
vessel
– Rubber dampers
1.2 Conventional use
The compressor is designed for generating
and storing compressed air only. Com-
pressed air is only suitable for compressed
air tools/devices/machines.
Any other type of use is considered contrary
to the intended use.
The compressor must not be used in poten-
tially explosive areas. Combustible, caustic
or toxic gases must not be sucked in!
1.3 Technical data
see Figs. 1a ...1d
1.4 Components
1.5 Maintenance
1.5.1 Clean the silencer insert
1. Unscrew silencer cover.
2. Pull out silencer insert and clean in soapy
water (max. 50°C).
3. Slide insert into position, screw on si-
lencer cover.
L If the insert can no longer be cleaned
properly, replace the complete silencer
unit.
1.5.2 Checking, setting and adjusting
the V-belt tension
Checking V-belt tension:
See instruction manual, part 2.
Setting/Adjusting V-belt tension:
1. Slacken counternut and remove.
2. Slacken second nut and slide drive motor
towards power unit. (Fig. 7b)
3. Remove old V-belt and replace with new
V-belt.
4. Tighten nut until V-belt tension is cor-
rect.
5. Lock counternut.
6. Attach the belt guard grating again using
the mounting plugs.
1.6 Vessel inspections
An informal inspection book (collection of all
documents related to the vessel including in-
spection documents from the "approved test
centre") must be compiled for the vessel.
Register the vessel with an "approved test
centre", stating this data. The centre initiates
and certifies an installation check by an
authorised expert and specifies the inter-
vals for repeat inspections.
L It is essential to retain vessel documents
included in the delivery (= certification
documents) and inspection documents for
the entire service life of the vessel. The
statutory specified inspections must be
arranged in accordance with the applica-
ble regulations of the respective country
in which the vessel is used.
1.1 Scope of delivery ...................... 1
1.2 Conventional use ...................... 1
1.3 Technical data .......................... 1
1.4 Components............................. 1
1.5 Maintenance............................. 1
1.6 Vessel inspections ..................... 1
01 Compressor unit
02 Intake filter
03 Oil filler plug
04 Mini ball valve (oil drain)
05 Oil inspection glass
06 Pressure pipe
07 Check valve
08 Vessel
09 Ball valve at condensate drainage point
10 Pressure switch with ON/OFF switch
11 Safety valve
12 Pressure gauge (vessel pressure)
13 TÜV test flange
14 Electric motor
15 Cradle
16 V-belt
17 Belt guard grating
18 V-belt disc
19 Fan wheel
21 Silencer
22 Ball valve
23 Rubber dampers

II/2
UNM STL 5,5 kW
F
Table des matières - partie 1
1.1 Eléments fournis
– Compresseur avec mode d'emploi
– Papiers d'accompagnement cuve à air
comprimé
– Caoutchoucs antivibratoires
1.2 Consignes d'utilisation
Le compresseur convient exclusivement pour
la production et l'accumulation d'air compri-
mé. L'air comprimé convient uniquement
pour les outils / appareils / machines à air
comprimé.
Toute autre utilisation est détournée de sa
destination première.
Le compresseur ne doit pas être utilisé dans
des zones explosibles. Les gaz inflammables,
irritants ou toxiques ne doivent pas être
aspirés !
1.3 Caractéristiques techniques
Voir illustration 1a ...1d
1.4 Structure
1.5 Entretien
1.5.1 Nettoyer la cartouche du silen-
cieux
1. Dévisser le couvercle du silencieux.
2. Retirer la cartouche du silencieux et la
nettoyer dans une solution savonneuse
(50 °C max.).
3. Remettre la cartouche et revisser le cou-
vercle du silencieux.
L S'il devient impossible de nettoyer la car-
touche, remplacer le silencieux dans son
ensemble.
1.5.2 Contrôler, régler la tension de la
courroie, changer la courroie
Vérifier la tension de la courroie
trapézoïdale :
Voir le mode d'emploi section 2.
Régler la tension/remplacer la courroie
trapézoïdale :
1. Dévisser et retirer le contre-écrou.
2. Dévisser le deuxième écrou et pousser le
moteur d'entraînement vers le groupe.
(Figure 7b)
3. Retirer l'ancienne courroie trapézoïdale
et positionner la courroie neuve.
4. Serrer l'écrou jusqu'à ce que la tension
de la courroie trapézoïdale soit correcte.
5. Bloquer l'ensemble avec le contre-écrou.
6. Remettre la grille protectrice de la cour-
roie et les bouchons de fixation.
1.6 Contrôles de la cuve
Pour la cuve, il convient de constituer un dos-
sier de contrôle (recueil de tous les docu-
ments relatifs au réservoir, et notamment
des comptes-rendus délivrés par
l'« organisme de contrôle agréé »). Enre-
gistrer la cuve en indiquant ces données
auprès d'un « organisme de contrôle
agréé ». Cet organisme sera tenu de diligen-
ter un expert pour un contrôle initial
d'installation et déterminera lui-même l'in-
tervalle des contrôles périodiques.
1.1 Eléments fournis....................... 2
1.2 Consignes d'utilisation ............... 2
1.3 Caractéristiques techniques........ 2
1.4 Structure ................................. 2
1.5 Entretien ................................. 2
1.6 Contrôles de la cuve.................. 2
01 Groupe de compresseur
02 Filtre d'aspiration
03 Bouchon d'huile
04 Mini-robinet (bouchon de vidange
d'huile)
05 Regard de la jauge d'huile
06 Tube de pression
07 Clapet anti-retour
08 Cuve
09 Robinet à boisseau sphérique de purge
des condensats
10 Pressostat avec commande marche/
arrêt
11 Soupape de sûreté
12 Manomètre (pression de la cuve)
13 Bride de contrôle TÜV (service des
mines allemand)
14 Moteur électrique
15 Chariot
16 Courroies trapézoïdales
17 Grille protectrice de courroie
18 Poulie pour courroie trapézoïdale
19 Roue de ventilateur
21 Silencieux
22 Robinet à boisseau sphérique
23 Caoutchoucs antivibratoires

UNM STL 5,5 kW
II/3
F
L Les papiers joints à la cuve (documents
d'homologation) et certificats de contrôle
doivent être impérativement conservés
pendant toute la durée de vie de la cuve.
Les contrôles prescrits par la loi doivent
être organisés selon la législation en vi-
gueur dans le pays dans lequel la cuve est
utilisée.

II/4
UNM STL 5,5 kW
E
Índice - Parte 1
1.1 Suministro
– Compresor con manual de instrucciones
– Documentación del depósito de aire com-
primido
– Elementos oscilantes de goma
1.2 Uso previsto
El compresor ha sido diseñado exclusiva-
mente para generar y almacenar aire com-
primido. El aire comprimido solamente es
apto para herramientas, aparatos o máqui-
nas neumáticas.
Cualquier otro uso se considera inadecuado.
El compresor no se debe utilizar en entornos
potencialmente explosivos. En ningún caso
se deben aspirar gases inflamables, corrosi-
vos o tóxicos.
1.3 Datos técnicos
Véanse figuras 1a ...1d
1.4 Composición
1.5 Mantenimiento
1.5.1 Limpieza del inserto silenciador
1. Desenroscar la tapa del silenciador.
2. Extraer el inserto y limpiarlo en lejía ja-
bonosa (máx. 50 °C).
3. Volver a colocar el inserto y enroscar la
tapa.
L Cuando ya no sea posible limpiar el inser-
to, se deberá sustituir todo el silenciador.
1.5.2 Comprobación, ajuste y cambio
de la tensión de la correa trape-
zoidal
Comprobación de la tensión:
Véase el manual de instrucciones, parte 2.
Ajuste/cambio de la tensión:
1. Desenroscar la contratuerca y sacarla.
2. Desenroscar la segunda tuerca y despla-
zar el motor en dirección al grupo.
(Fig. 7b)
3. Sacar la correa trapezoidal antigua y co-
locar una nueva.
4. Apretar la tuerca hasta que la correa esté
correctamente tensada.
5. Asegurar con la contratuerca.
6. Colocar de nuevo la rejilla protectora de
la correa y fijarla con los tapones.
1.6 Comprobaciones en el depó-
sito
Para el depósito debe elaborarse un libro de
comprobación sin forma (recopilación de to-
dos los documentos pertenecientes al depó-
sito, incluidos los documentos de
comprobación del "centro de inspección au-
torizado"). Dar de alta el depósito en un
"centro de inspección autorizado" indicando
estos datos. Dicho centro encarga la com-
probación de modelo constructivo a un
experto y la certifica , además determina
los plazos para las siguientes comprobacio-
nes.
L Es obligatorio conservar la documentación
relativa al depósito (= documentos de ho-
mologación) y los certificados de ensayo
los durante toda su vida útil. Las compro-
baciones obligatorias por ley se deben or-
1.1 Suministro ............................... 4
1.2 Uso previsto............................. 4
1.3 Datos técnicos.......................... 4
1.4 Composición............................. 4
1.5 Mantenimiento.......................... 4
1.6 Comprobaciones en el depósito... 4
01 Grupo de compresión
02 Filtro de aspiración
03 Tapón de llenado de aceite
04 Minillave de bola (purga de aceite)
05 Mirilla de aceite
06 Tubo de presión
07 Válvula antirretorno
08 Depósito
09 Llave de bola para la salida de conden-
sados
10 Presostato con interruptor de conexión/
desconexión
11 Válvula de seguridad
12 Manómetro (presión del depósito)
13 Brida sometida a comprobación técnica
14 Motor eléctrico
15 Carro
16 Correa trapezoidal
17 Rejilla protectora de la correa
18 Polea de correa
19 Rueda de ventilador
21 Silenciador
22 Llave de bola
23 Elementos oscilantes de goma

UNM STL 5,5 kW
II/5
E
ganizar según las disposiciones aplicables
del país donde se utilice el depósito.

II/6
UNM STL 5,5 kW
NL
Inhoudsopgave - deel 1
1.1 Leveringsomvang
– Compressor met gebruiksaanwijzing
– Containerdocumenten persluchtcontainer
– Rubberen trilelementen
1.2 Toepassing conform de bepa-
lingen
De compressor is uitsluitend bestemd voor
de opwekking en opslag van perslucht. De
perslucht is alleen geschikt voor persluchtge-
reedschap/-apparatuur/-machines.
Ieder ander gebruik is oneigelijk.
De compressor mag niet in explosiegevaar-
lijke zones worden gebruikt. Brandbare, bij-
tende of giftige gassen mogen niet worden
aangezogen!
1.3 Technische gegevens
zie afbeelding 1a ...1d
1.4 Opbouw
1.5 Onderhoud
1.5.1 Geluiddemperinzet reinigen
1. Geluiddemperdeksel er op schroeven.
2. Geluiddemperinzet er uit trekken en in
zeepsop (max. 50°C) reinigen.
3. Inzetstuk er in schuiven, geluiddemper-
deksel er op schroeven.
L Wanneer de inzet niet langer gereinigd
kan worden, de volledige geluidsdemper
vervangen.
1.5.2 V-snaarspanning controleren,
instellen, vervangen
V-snaarspanning controleren:
Zie Gebruiksaanwijzing deel 2.
V-snaarspanning instellen/vervangen:
1. Contramoer losdraaien en verwijderen.
2. Tweede moer losdraaien en aandrijfmo-
tor in de richting van het aggregaat
schuiven. (afbeelding 7b)
3. Oude V-snaar verwijderen en nieuwe V-
snaar plaatsen.
4. Moeren aandraaien tot de juiste V-snaar-
spanning is bereikt.
5. Met contramoer borgen.
6. Riembeschermrooster weer met de be-
vestigingsstop aanbrengen.
1.6 Keuringen van de tank
Voor de tank moet een informeel keurings-
boek (verzameling van alle documenten die
bij de tank horen, inclusief de keuringsdocu-
menten van de erkende "keuringsinstelling")
worden aangelegd. Tank met vermelding
van deze gegevens bij een „erkende keu-
ringsinstelling“ aanmelden . Deze regelt en
certificeert een opstellingskeuring door
een deskundige en legt de intervallen van
de terugkerende keuringen vast.
L Bij de tank meegeleverde documenten (=
toelatingsdocumenten) en keuringscerti-
ficaten gedurende de levensduur van de
tank beslist bewaren. De wettelijk voor-
geschreven keuringen dienen te worden
georganiseerd volgens de geldende voor-
schriften van het land waarin de tank
wordt gebruikt.
1.1 Leveringsomvang...................... 6
1.2 Toepassing conform de bepalin-
gen......................................... 6
1.3 Technische gegevens ................. 6
1.4 Opbouw................................... 6
1.5 Onderhoud............................... 6
1.6 Keuringen van de tank............... 6
01 Compressoraggregaat
02 Aanzuigfilter
03 Olievulstop
04 Mini-kogelkraan (olieaftap)
05 Oliekijkglas
06 Drukbuis
07 Terugslagventiel
08 Container
09 Kogelkraan condensaatuitlaat
10 Drukschakelaar met IN/UIT-schakelaar
11 Veiligheidsventiel
12 Manometer (containerdruk)
13 TÜV-testflens
14 Elektromotor
15 Slede
16 V-snaar
17 Riembeschermrooster
18 V-riemschijf
19 Ventilatorwiel
21 Geluiddemper
22 Kogelkraan
23 Rubberen trilelementen

UNM STL 5,5 kW
II/7
N
Innholdsfortegnelse – del 1
1.1 Innholdet i esken
– Kompressor med bruksanvisning
– Dokumentasjon for trykkluftbeholder
– Gummisvingeelementer
1.2 Hensiktsmessig bruk
Kompressoren egner seg kun for lagring og
produksjon av trykkluft. Trykkluften egner
seg bare til bruk av trykkluftverktøy/-utstyr/
-maskiner.
All annen bruk er uhensiktsmessig bruk.
Kompressoren skal ikke brukes i eksplo-
sjonsfarlige områder. Brennbare, etsende el-
ler giftige gasser skal ikke suges ut.
1.3 Tekniske data
Se bilde 1a ...1d
1.4 Oppbygning
1.5 Vedlikehold
1.5.1 Rengjøring av lyddemperinnsat-
sen
1. Skru av lyddemperdekselet.
2. Trekk ut lyddemperinnsatsen, og vask
den i varmt såpevann (max. 50 °C).
3. Skyv innsatsen inn igjen, og skru på lyd-
demperdekselet.
L Når innsatsen ikke lenger kan rengjøres,
skiftes hele lyddemperen ut.
1.5.2 Kontrollere/justere kilerem,
skifte kilerem
Kontrollere kileremstrammingen:
Se bruksanvisning, del 2.
Justere kileremstrammingen / skifte ki-
lerem:
1. Løsne og fjern kontramutteren.
2. Løsne den andre mutteren, og skyv driv-
motoren i retning aggregatet. (bilde 7a)
3. Ta av den gamle kileremmen, og sett på
ny kilerem.
4. Trekk til mutteren til riktig kileremstram-
ming nås.
5. Sikre med kontramutteren.
6. Fest rembeskyttelsesgitteret igjen med
festepluggene.
1.6 Kontroll av beholderen
For beholderen skal det legges ved en ufor-
mell kontrollbok (samling av all dokumenta-
sjon om beholderen, inkludert
kontrolldokumenter fra „godkjent kontrollin-
stans“). Registrer beholderen med alle data
hos en „godkjent kontrollinstans“ . Kontroll-
instansen får da utført og bekrefter en
opp-
stillingskontroll av en sakkyndig
og
bestemmer dessuten frister for senere kon-
troller.
L Dokumentasjon for beholderen (typegod-
kjennelse) og kontrollattester skal oppbe-
vares gjennom hele beholderens levetid.
De lovpålagte kontrollene må organiseres
i samsvar med gjeldende forskrifter i det
landet der beholderen brukes.
1.1 Innholdet i esken ...................... 7
1.2 Hensiktsmessig bruk ................. 7
1.3 Tekniske data ........................... 7
1.4 Oppbygning ............................. 7
1.5 Vedlikehold .............................. 7
1.6 Kontroll av beholderen............... 7
01 Kompressoraggregat
02 Sugefilter
03 Oljepåfyllingsplugg
04 Liten kulekran (oljetapping)
05 Oljenivåglass
06 Trykkrør
07 Tilbakeslagsventil
08 Beholder
09 Kulekran kondenstapping
10 Trykkbryter med PÅ/AV-bryter
11 Sikkerhetsventil
12 Manometer (beholdertrykk)
13 TÜV-testflens
14 Elektromotor
15 Sleide
16 Kilerem
17 Rembeskyttelsesgitter
18 Kileremskive
19 Viftehjul
21 Lyddemper
22 Kulekran
23 Gummisvingeelementer

UNM STS/STL
II/1
GB
Table of contents - Part 2
2.1 General information
Observe the safety instructions!
Read the Instruction Manual Part 1 and
2!
Subject to technical modifications. Figures
(at the start of the Instruction Manual) may
vary from the original.
2.2 Symbols and their meaning
2.3 Safety instructions
2.1 General information .................. 1
2.2 Symbols and their meaning ........ 1
2.3 Safety instructions .................... 1
2.4 Commissioning ......................... 2
2.5 Operation ................................ 2
2.6 Maintenance............................. 3
2.7 Decommissioning...................... 4
2.8 Troubleshooting ........................ 5
2.9 Warranty ................................. 6
Read the Instruction Manual
Warning against dangers
Danger of electric shock!
Unit can start up again automat-
ically!
1
Hot surface!
Switching on/off
Protective motor switch (exter-
nal)
Oil-free compressed air
Oiled compressed air
Condensate drain valve
Suction capacity [l/min]
Effective delivery quantity [l/
min]
Motor output [kW]
Max. operating speed [rpm]
OIL
OIL
n
Overall dimensions: width x
depth x height [mm]
Weight [kg]
Working pressure [bar]
Vessel pressure [bar]
Vessel capacity [l]
Maximum permissible working
overpressure of vessel [bar]
Compression final pressure [bar]
Switch-on pressure [bar]
Voltage [V], frequency [Hz],
phase(s) [~]
Electric protection, delayed-
action [A]
Oil quantity
2
[l]
L
pA1
Sound pressure level
according to ISO 2151 and appli-
cation of EN ISO 3744
Operation/Downtime ratio
Max. number of switching cycles
[1/h]
Ambient temperature [°C]
Min. distance to wall [cm]
1. e.g. when switch-on pressure is reached
2. Initial filling: mineral oil up to 10 °C. Under 10 °C, use
fully synthetic oil.
WARNING
Burn hazard on the motor, unit, check
valve, connecting hose/pressure pipe
and from hot oil!
X Wear safety gloves!
WARNING
Hearing damage from noise during op-
eration!
X Wear ear protection!
HT
B
m
P
P
P
PS
P
max
P
min
LpA1
11
000
T
min.
max.

II/2
UNM STS/STL
GB
• Be calm and focused and ensure proper
operation.
• Protect yourself and other persons, ani-
mals, property, and the environment by
taking the necessary protective measures
and being trained in use of the devices to
prevent harm to your health, property
damage, financial loss, environmental
harm or risk of accident.
• Repairs may be carried out only by
Schneider Druckluft GmbH or its approved
service partners.
• Observe the Instruction Manual for ves-
sels!
• Prohibited: Manipulation, inappropriate
use, temporary repairs, use of other ener-
gy sources, removal or use of damaged
safety equipment, operating a leaking or
malfunctioning system, use of non-original
spare parts, exceeding the specified per-
missible working pressure, working with-
out protective clothing, maintaining /
repairing or leaving a pressurised machine
unattended, using other / unsuitable lubri-
cants, smoking, naked flames.
2.4 Commissioning
2.4.1 Conditions at the installation lo-
cation
• Rooms: as dust-free as possible, dry, well
ventilated.
• Installation surface: flat, horizontal.
• Keep heat dissipating devices and lines
away from the compressor.
• When installing the vessel, make sure that
all sides can be viewed clearly and internal
checks made unhindered.
• Type plate easily visible.
2.4.2 Before first use
1. Carry out a visual inspection.
2. Check the electrical connection.
3. Check the oil level (see Chap. 2.6.4).
4. Attach the rubber dampers (see Chap.
2.4.5).
2.4.3 Electrical connection
• The mains voltage must match that speci-
fied on the rating plate.
• Electric protection according to technical
data.
• Install the main switch and connection ca-
ble (not included in scope of supply)!
L Cable: cross section: min. 2.5 mm²; max.
cable length:10 m.
With compressors from 5.5 kW, install a
star-delta switch instead of a main switch.
2.4.4 Checking / changing the rota-
tion direction
Perform a rotation direction check at the "ex-
ternal" three-phase current source before
starting operation.
1. Connect the compressor to the mains
power supply.
2. Switch on the compressor at the ON/OFF
switch.
3. Note the rotation direction of the fan
wheel.
4. If the rotation direction does not corre-
spond to the direction of the arrow on the
belt guard grating, change the direction.
5. Switch off the compressor at the ON/OFF
switch.
1. Interrupt the power supply to the main
switch.
Have a trained and qualified electrician per-
form the following tasks:
1. Change over the phases.
2. Check the rotation direction. (see above)
3. If direction of rotation has not changed:
contact service partner.
2.4.5 Attach rubber dampers
Lift compressor with crane. Select lifting
equipment capable of supporting the weight
of the compressor. See technical data.
1. Guide a suitable loading strap or chain
through the console. Do not damage any
compressor components.
2. Screw rubber dampers (item 23) to the
feet of the vessel. Do not forget to insert
washers! Tighten nuts to 80 Nm.
2.5 Operation
L Do not overload the compressor: do not
exceed the max. number of switching cy-
cles and the ratio of operating time to
standstill!
WARNING
Damage to the connexion cable!
X Protect it from sharp edges, oil and heat!
X Grasp the plug and unplug it from the
power outlet!

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Prevent the vessel from emptying completely
during longer downtimes***:
Close ball valve (item 22).
2.5.1 Insert
1. Connect the compressor to the mains
power supply.
2. Switch on the compressor at the ON/OFF
switch (item 10) or the main switch.
Compressor starts up and switches off
automatically: the compressor is ready
for use.
When the switch-on pressure is reached, the
compressor restarts automatically.
2.5.2 Compressed air bleeding
Install the elastic connecting hose between
the ball valve (item 22) and compressed air
pipe system or compressed air cold dryer.
2.5.3 After use
1. Switch on the compressor at the ON/OFF
switch (item 10).
2. Interrupt the power supply to the main
switch.
2.6 Maintenance
2.6.1 Before each maintenance task
1. Switch off compressor at the ON/OFF
switch (item 10) (if available). Discon-
nect power supply at main switch.
3. Depressurise the whole compressor:
slowly open the ball valve condensate
drainage (item 09) and close it if no
more air escapes.
2.6.2 Cleaning the compressor
• Clean the cooling fins on the cylinder, cyl-
inder head and aftercooler using com-
pressed air.
• Clean the fan impeller cover on the motor.
2.6.3 Draining condensate from pres-
sure vessel
L Condensate is a water pollutant. Dispose
of it according to applicable regulations!
1. Place a suitable vessel under the conden-
sate drain.
2. To drain condensate, the pressure must
be approx. 2 bar.
3. Open the ball valve (item. 09) and close
it if no more condensate runs out
2.6.4 Checking the oil level
1. The oil level must be between the top
and bottom marks (oil dipstick/oil in-
spection glass). (Figure 4a)
2. Correct if necessary.
L If oil is milky, it must be changed imme-
diately.
2.6.5 Changing/adding oil
1. Allow the compressor to warm up, switch
it off, disconnect the power supply.
2. Pull out oil filler plug or hose (item 03),
hold used oil container under the mini
Interval / No later than Tasks See chap.
-- / As needed Clean compressor 2.6.2
-- / after each use Drain condensate from pressure vessel 2.6.3
daily / commissioning Check the oil level, add oil if necessary. 2.6.4
Once after 10 h / -- Check screw connections 2.6.6
-- / Weekly Check intake filter 2.6.7
50 h / After 6 months Check V-belt tension (where applicable) 2.6.9
Clean intake filter 2.6.7
Change oil (1st oil change mineral or synthetic oil) 2.6.5
500 h / after 1 year Change oil (with mineral oil) 2.6.5
Change intake filter 2.6.7
Change check valve and insert 2.6.10
Check screw connections 2.6.6
1,000 h / after 2 years Change oil (with synthetic oil) 2.6.5
Change V-belts (where applicable) 2.6.9
2,500 h / After 5 years Change safety valve 2.6.11

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ball valve (item 04), open it and drain
used oil completely.
3. Close the mini ball valve.
4. Add the prescribed quantity of oil.
5. Check the oil level, correct if necessary.
Insert the oil filler plug or hose.
6. Dispose of used oil according to applica-
ble regulations.
L Recommendation: mineral oil Art. No.
B111002, synthetic oil Art. No. B111006.
No guarantee can be provided if the
wrong oils are used.
Do not mix synthetic and mineral oil:
compressor damage is possible!
2.6.6 Check screw fittings
1. Check all screw connections for tight fit
and retighten if necessary.
2. Observe the tightening torques (tighten-
ing torques calculated according to VDI
2230).
2.6.7 Cleaning the intake filter
1. Unscrew the intake filter. (Fig. 5a)
2. Clean the filter insert using the blow gun,
exchange the filter insert if necessary.
3. Screw the intake filter back on.
L Do not purge the intake opening. No for-
eign objects may enter.
Never operate the compressor without an
intake filter.
2.6.8 Clean the silencer insert
On compressors with a silencer:
See instruction manual, part 1.
2.6.9 Checking, setting and adjusting
the V-belt tension
Preparation:
Turn all mounting plugs 45° and remove,
then take off the belt guard grating.
Checking V-belt tension:
Press down on the V-belt at the top using
your thumb, halfway between the V-belt
discs. It may not give more the width of the
V-belt (Figure 7a).
Setting/Adjusting V-belt tension:
See instruction manual, part 1.
2.6.10 Cleaning/replacing the check
valve
1. Unscrew the locking screw (Figure 6a).
2. Clean insert, replace in case of damage,
squeezing or hardening.
3. Clean seat, replace complete check valve
if damaged.
2.6.11 Replacing the safety valve
1. Detach the safety valve (item 11) by un-
screwing it anticlockwise.
2. Apply Loctite® 243 to the thread of the
new safety valve or wind Teflon tape
around the valve.
3. Screw the new safety valve into place by
screwing it clockwise.
2.7 Decommissioning
Observe the safety instructions!
2.7.1 Preservation
Oil-lubricated compressors: compressor is
taken out of service for a long period (over 6
months) or is new from the factory and will
not be operated until much later.
1. Replace oil with corrosion inhibitor oil
(viscosity SAE 30). See Chap. 2.6.5.
2. Allow the compressor to warm up, switch
it off, disconnect the power supply.
3. Drain the condensate, depressurise the
compressor.
4. Prior to returning to operation, replace
corrosion inhibiting oil with compressor
oil.
Store the compressor in a dust-free and dry
area where it is not exposed to high temper-
ature fluctuations.
2.7.2 Disposal
Dispose of the unit and packaging materials
according to applicable regulations.

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2.8 Troubleshooting
Problem Cause Remedy
A Protective motor
switch interrupts
power supply
In case of malfunctions (e.g.
overheating; low voltage;
extension cable too long or
with incorrect cross-section),
the protective motor switch is
tripped.
X Switch off the compressor. Wait
a short while. Actuate the protec-
tive motor switch is available.
Switch on the compressor.
Protective motor switch trips
again: switch off compressor.
Disconnect the power supply.
Contact the service partner
W Pressure relief does
not function Power failure / undervoltage in mains with compressor
switched on
X Switch off the compressor. It de-
pressurises. Switch on the com-
pressor
C Compressor does
not start when
switched on.
Vessel pressure is higher than
switch-on pressure.
X Relieve pressure in the vessel
until the pressure switch is acti-
vated automatically.
Power supply faulty X Have the power supply checked
by a qualified person (e.g. ser-
vice partner)
Protective motor switch inter-
rupts power supply.
X See item A.
Pressure switch defective X Have the pressure switch
changed by a qualified person.
D Compressor starts
up briefly / buzzes
and then switches
off automatically
Mains connection cable longer
than permitted or the cross
section is too small
X Check connection cable length
and cable cross-section (see
Chap. 2.4.3)
E Compressor runs
continuously Intake filter badly contami- nated
X Clean or replace
Air consumption of compressed
air tools is too high
X Check air consumption. Contact
the service partner
Leakage at compressor
X Locate leak, contact service part-
ner
Excessive condensate in the
tank
X Drain the condensate (see
Chap. 2.6.3)
Compressed air line leaky
X Check the compressed air net-
work, seal leak
Condensate drain valve is open
or missing
X Close or replace
F Load-relieving valve
is blowing off Load-relieving valve leaky
X Clean or replace
G Switch-off pressure
reached: load-
relieving valve
blows off until
switch-on pressure
is reached
Check valve insert leaky or
defective
X Clean or replace (see
Chap. 2.6.10)
Check valve is damaged
X Replace

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2.9 Warranty
Basic principle: complete unit in original
condition / proof of purchase.
Material and production defects are covered
by statutory provisions.
Excluded warranty claims: Wear/consum-
able parts; improper use; overload; manipu-
lation/use for other than intended use;
insufficient/incorrect/no maintenance; accu-
mulation of dust/dirt; incorrect/impermissi-
ble work methods; failure to observe the
Instruction Manual; incorrect processing/
working materials; incorrect electrical con-
nection; improper installation.
HCompressor
switches on fre-
quently.
Excessive condensate in the
pressure tank.
X Drain the condensate (see
Chap. 2.6.3).
Compressor overloaded. X See item E
I Safety valve blows
out. Vessel pressure is higher than the set switch-off pressure.
X Have the pressure switch reset/
replaced by a qualified person.
Safety valve is defective X Replace or contact service part-
ner
J Compressor over-
heats. Air supply not sufficient.
X Ensure sufficient ventilation.
Cooling fins on cylinder (cylin-
der head) contaminated
X Clean
Duty cycle too long. X Switch off compressor.
K Oil-lubricated com-
pressor: the oil
level rises without
oil having been
added
Condensate collects in the oil X Compressor is too large, contact
service partner
High humidity. X Change oil.
L V-belt driven com-
pressor: unusual
running noises
V-belt or belt disc is scraping
against belt guard grating
X Look for point of contact, remedy
error
V-belt sags X Tighten the V-belt (see
Chap. 2.6.9)
Problem Cause Remedy