Graco 015.050-DP Operation manual

USER INFORMATION 6000305E
KEEP FOR FUTURE USE Rev. B
B.6.20.44
015.050-DP
020.035-DP
025.008-DP
030.020-DP
030.050-DP
040.035-DP
060.020-DP
Reciprocating pumps MERKUR 2000
*5$&2
®
GRACO N.V.
Industrieterrein “Oude Bunders”
Loc. 2206 - Slakweidestraat 31
3630 Maasmechelen - Belgium
Tel.: [phone] Fax: [phone]

REGULAR TESTING OF THE APPLIANCES
Person responsible
Test certificate No. Test date Company Name
Liquid spray equipment is intended in particular for surfacing (e.g. airless paint spraying equipment,
two-component coating equipment).
The operator must ensure that liquid spray equipment is tested for proper operation after an
operating pause of more than 6 months, but at least every 12 months by a competent person1).
The operator must ensure that the test results are properly recorded in writing for every liquid spray
equipment2) and kept until the next test.
The operator must ensure that the test certificate is available at the place of use 3) of the liquid spray
equipment.
 A competent person is somebody who on the basis of their professional training and
experience has sufficient knowledge in the field of liquid spray equipment and is sufficiently
conversant with the relevant national health and safety regulations, accident prevention
regulations, recommendations and generally accepted rules and industrial norms that they are
in the position to evaluate liquid spray equipment.
 Written records (test results) can, for example, be in the form of test certificates.
 At the place of use, a copy of the test certificate or a test stamp on the appliance is considered
as compliance with the requirement.
-Extract from: Working with liquid spraying equipment (VBG 87)
Issued on: 10th October 1993
§ 23 (1), (3) and (4)
Implementation instructions VBG 87
to § 1 Para. 1 and to §23 Para. 1, Para. 3, Para. 4

Page 1 of 33
10.99
RECIPROCATING PUMPS MERKUR 2000
USER INFORMATION
- OPERATING INSTRUCTIONS - Issued
B.6.20.44-B
Subject to change
Note the protection mark in accordance with DIN 34
Approved 19.10.99 Kuhn
Proc. 15.10.99 Hilse
F22.060.01, issued on 01.98
*5$&2
The original manufacturer’s designation can be found on the
reciprocating pump.
Please compare all specifications and complete, if necessary.
All important sections in this Operator Manual have been marked
with the following symbols:
Directions involving your safety
Important operational directions
Ensure that all other users know and understand all safety directions.
CONTENTS OF USER INFORMATION
Page
OPERATING INSTRUCTIONS
CORRECT USE 2
FUNCTIONAL DIAGRAM 3
DESCRIPTION OF FUNCTIONS 4
EQUIPMENT COMPONENTS – IMPORTANT INFORMATION 4
LIST OF TOOLS 15
INSTALLATION 15
START UP 19
IMPORTANT INFORMATION REGARDING START UP AND OPERATION 21
OPERATION 22
MAINTENANCE AND INSPECTION, REPAIRS 22
THREADED CONNECTIONS 27
SHUTTING DOWN 29
SOLVING BREAKDOWNS 29
NOTES 32
Pulsation reducing measures 32
Self-check 33
Guidelines, directives and regulations 33
User information 33
Read and understand the operator manual and the safety
instructions before taking the pump into operation
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- 2 - B.6.20.44-B
F22.060.02, issued on 01.98
CONTENTS – CONT’D
Page
TECHNICAL DESCRIPTION OF PRODUCT
DESCRIPTION OF THE RECIPROCATING PUMP 01
SUITABILITY, MATERIAL 02
TECHNICAL DATA 03
Key to designation, the module 03
DATA 04
Sound emission 05
Construction materials of wetted parts 05
Dimensions, connection threads, nominal diameters, attachment position 06
LIST OF REPAIR PARTS
REPAIR – RECIPROCATING PUMPS, REPAIR – ACCESSORIES (Sales catalogue extract)
Includes:
TEST CERTIFICATE (final inspection)
EC DECLARATION OF CONFORMITY
BRIEF USER INSTRUCTIONS (can be adhered to pump)
BRIEF OPERATING INSTRUCTIONS, WARNING SIGNS
CORRECT USE
The MERKUR 2000 reciprocating pumps are exclusively manufactured for the usual applications in
surfacing technology (to convey coatings or auxiliary agents or for spraying) or similar work.
Any other purpose above and beyond this is considered inappropriate use. We shall not be liable for
any damage or injury resulting from this; the user shall bear sole responsibility in such cases.
Correct use includes observing the operating, maintenance and inspection conditions and
regulations laid down by us.
The MERKUR 2000 reciprocating pumps should only be operated, maintained and serviced by
personnel familiar with, and trained to recognise its inherent dangers.
The relevant accident prevention regulations as well as safety and medical rules must be observed.
In case of unauthorised modifications of the appliance we cannot be held responsible for any
damages or injury resulting from such modifications.
The user is responsible for the correct installation of the equipment.

-
3 - B.6.20.44-B
F22.060.03, issued on 01.98
FUNCTIONAL DIAGRAM
RECIPROCATING PUMP 1Air pressure container 9Fluid container
AIR PRESSURE SUPPLY 2Pipeline or hose bl Suction line
(Suction tube)
EXHAUST AIR SOUND
SUPPRESSION 3Pressure control valve bm High-pressure screen
FLUID SUCTION SYSTEM 4Ball valve bn Pressure line
FLUID PRESSURE SYSTEM 5Ball valve bo Spray gun
APPLIANCE SUPPORT 6Safety valve bp Screen
7Safety valve bq Liquid model
8Sound absorber br Filter regulator
Compressor

- 4 - B.6.20.44-B
F22.060.02, issued on 01.98
DESCRIPTION OF FUNCTIONS
The air pressure is supplied to the reciprocating pump from the pressure tank 1via a tube or
hose line 2and a pressure control valve 3.
The air supply from the pressure tank to the reciprocating pump can be interrupted by the ball valve
4.
The ball valve 5is used for manually releasing condensation (an automatic steam trap would be
preferable here).
The safety valve 6protects the pressure tank against inadmissible rises in air pressure (e.g. in the
event of heating).
Since as a rule the air pressure supply is not installed for the reciprocating pump and because it
is obligatory, the reciprocating pump is also provided with a safety valve 7.
During operation of the drive (air motor) of the reciprocating pump, the air pressure escapes into the
atmosphere via the silencer 8.This releases its pressure.
The fluid (coating or auxiliary agent) is sucked into the reciprocating pump from a container 9via
the suction line bl and supplied under pressure to the spray gun bo via the high-pressure screen
bm and pressure line (hose or pipe) bn.
A sieve (dirt trap) bp protects the reciprocating pump against foreign bodies which have accidentally
entered the fluid.
A liquid unit (detergent unit) bq is essential in reciprocating pumps of this design. The operating
position (attachment position) of the reciprocating pump will depend on it.
Since the appliances also use AIRLESS PLUS for spraying (air-boosted high-pressure spraying
equipment), it is recommended to attach a filter regulator br at the air pressure branch.
EQUIPMENT COMPONENTS – IMPORTANT INFORMATION
The following components are required in an operational system:
THE RECIPROCATING PUMP
Functional description of the reciprocating pump; following part "Technical Description of
Product B.6.20.44-P".
AIR PRESSURE SUPPLY
The air pressure supply consists of the compressor, the pressure tank with steam trap,
possibly an air pressure drier and pipeline.
The air pressure supply is generally already available to the user.
- When air pressure supply needs to be installed, the relevant accident prevention
regulations, safety rules and user information must be observed, in particular the
information supplied by the manufacturer of the compressor.

-
5 - B.6.20.44-B
F22.060.03, issued on 01.98
There must be a flexible connection between the reciprocating pump and the air pressure line
(avoids fractures caused by vibrations). A hose line is most suitable
- Nominal diameter 9 or larger
- Operational pressure = max. mains pressure, preferably ( 16 bar
- air and ambient temperatures -20° to +50 °C
- free from any substances that may interfere with paint spraying, such as silicone
In areas with a danger of explosion the air pressure line and the hose line must be electrically
conductive (to avoid electrostatic charging).
-Discharge resistance < 106Ωrelative to earth.
The pressure control valve is in most cases directly fitted to the reciprocating pump.
- Efficient flow rate
at 6 bar and 25m/s > 50 m3/h
- Air inlet pressure 16 bar
- Air and ambient temperatures 0° C to 50° C
It goes without saying that the pressure control valve can be situated between the hose line
and the air pressure line.
The manometer – 3.1 in functional diagram – enables accurate adjustment and monitoring of
the necessary air pressure.
- Display range 0 to 16 bar
- Air and ambient temperatures 0° to 50 °C
- Damped construction
A shut-off mechanism (e.g. a ball retaining valve) should always be fitted between the
pressure control valve and the hose line, or between the hose line and the air pressure line.
This enables quick and safe switch-off of the reciprocating pump for operational breaks,
maintenance work and in cases of breakdown.
- Do not change the values set on the pressure control valve
- Rated pressure ≥15 bar
- Material CuZn, nickel-plated
The rule for ball retaining valves: wings transverse to flow direction = line is closed off
Do not use PTFE tape or hemp to seal connections
(- malfunctioning of pressure control valve - as a result of residue in air pressure supply).

- 6 - B.6.20.44-B
F22.060.02, issued on 01.98
There are no special requirements as regards the quality of the air pressure supplied to the
reciprocating pump.
- Condensation and residue oil from the compressor are trapped
(pressure tank, air filter)
- Lubrication of compressed air not necessary
- Temperature of compressed air 10° C to 50° C
When compressed air is used for fluid atomising, a filter regulator, branched off from the main
compressed air supply – 16 in functional diagram – must be installed upstream.
- Efficient flow rate
at 6 bar and 25m/s > 32 m3/h
- Air inlet pressure 16 bar
- Air and ambient temperatures 0° to 50°C
EXHAUST AIR SILENCER
Without a silencer the sound emission of a reciprocating pump operated by air pressure is
high [ > 100 dB(A) ] and causes damage to hearing. Since there is a relationship between
sound absorption and icing of the reciprocating pump control system, it is not possible to lower
the sound pressure level as much as desired (not 70 dB(A)].
All MERKUR 2000 reciprocating pumps are therefore equipped with appropriately
dimensioned silencers.
The reciprocating pumps may not be operated without the silencer.
The silencer must not be screwed off during operation.
- The decision to wear ear protection depends on the operating pressure and the
resulting sound level.
The air pressure must be free from any substances that may interfere with
paint spraying, like silicone or oil.
- This also applies to component parts of the air pressure supply.
See "Technical Description of Product B.6.20.44-P", page 05
for more detailed information on the sound level.

-
7 - B.6.20.44-B
F22.060.03, issued on 01.98
FLUID SUCTION SYSTEM
The suction connection of MERKUR 2000 reciprocating pumps is constructed in such a way
that both a swivel unit (angular or T-shaped) and a connector or suction pipe can be screwed
in.
The connection units 1and 2are used for connecting the suction system, the suction line
and the suction cup. The connector 3is only used for retrofitting. The end of the thread is 4
situated at the suction pipes.
Most of the reciprocating pumps are equipped with the
connection unit 1and a suction system (suction hose,
tube and suction sieve).
The swivel connector enhances the flexibility of the
suction hose so an almost empty fluid container will not
be turned over by the recoil force of the suction hose.
The diameter of the suction line is dimensioned in such a way that fluids with a kinematic
viscosity of up to 750 mm2/s (cSt) can be sucked without difficulty by the reciprocating pump.
A higher viscosity rating can result in a reduction of suction performance, or even result in
interrupted suction, which can be identified by an increasing pressure drop during the change
of direction (pulsating pressure).
- Measures for improvement are:
keeping the suction line as short as possible or a short suction hose with a larger cross
diameter.
Specifications of suction assembly:
Electrically conductive, maximum permissible resistance 3 x 104Ω/m (tested to ISO 8031)
and leakage resistance to earth < 106Ω.
(Suitable for use in hazardous locations.)
Suction
Connector 1

- 8 - B.6.20.44-B
F22.060.02, issued on 01.98
The individual parts of the suction system are designed to withstand an excess pressure of
12 bar (- Suitable for suction heights of up to 8.5 m).
The suction hose and the suction sieve are resistant to the usual solvents in the surface
coating and are silicone-free.
Minimum rated diameter 19
Fluid temperature 10 °C to 85 °C
Mesh size of screen 1.8
In case of a fixed installation the connection between
reciprocating pump and fluid container must be flexible
(to avoid rupture caused by vibration).
The ratings for this connecting suction line must
correspond with those of the suction equipment.
The admission pressure (pressure in a supply system, e.g. in a circuit) acting on the
reciprocating pump and the suction line, must not exceed 10 bar.
When a threaded tube is used in the suction assembly, the manufacturer’s directions for
installation of the screwed connection apply.
The viscosity of thixotropic fluids is reduced by stirring;
this improves e.g. the suction behaviour of the
reciprocating pump.
The agitator is clamped to the suction equipment. The
clamp (holder) must be fastened to the rim of the fluid
container. This ensures correct positioning of the
propeller of the agitator relative to the wall and base of
the container as well as to the suction tube, and prevents
the parts from touching.
All metal parts in contact with the suction area material are made of austenitic
stainless steel. (suitable for use with water lacquer).
All immersed parts of the agitator (spindle and propeller) are made from austenitic
stainless steel (suitable for water-based paints).
Connector 1
Suction pipe
Suction
Agitator

-
9 - B.6.20.44-B
F22.060.03, issued on 01.98
The agitator is pneumatically driven: maximum permissible air inlet pressure: 6 bar.
Speed can be set on the built-in flow control valve. The ideal agitator speed for a particular
fluid must be determined by the user.
–The propeller of the agitator is enclosed within a protection ring.
–Techn. Product Description B.18.10.05-P
Reciprocating pumps with a fixed container are
particularly useful for smaller quantities of coating agent
(e.g. for repair paint jobs).
All wetted metal parts of the container are made from
austenitic stainless steel (-suitable for water-based paints).
Container capacity 5 l
Design certification for highly inflammable liquids class AI and AII is not required, since the
container is made entirely from stainless steel.
Suitable for use in areas with explosion hazards, because electrostatic charging cannot
occur.
–If the reciprocating pump with container is installed on a pump trolley, the connection unit is
fixed by a shim (can no longer be rotated).
In special cases, the reciprocating pumps are equipped
with suction system and cup (both described above). By
means of ball valves, it is possible to provide suction via
the suction system or from the cup.
Ball valve
Nominal diameter 25
Zinc-plated steel in the area in contact with the fluid
(- only suitable for water-based paints in certain
cases)
The rule for ball retaining valves: wings transverse to flow direction =line is closed
off
- Special constructions with two cups and ball valves in between or without ball
valves or with two suction systems and ball valves in between are also feasible.
When assembling or dismantling the suction system and the cup keep the ball valve in
position with an open-end spanner.
Connector 1
Cup
Connector 2
Cup
Suction
Ball valve

- 10 - B.6.20.44-B
F22.060.02, issued on 01.98
FLUID PRESSURE SYSTEM
The fluid pressure system usually consists of a high-pressure screen, a hose line and a spray
gun or atomizer.
In most reciprocating pumps, the screen PN 500 is fitted
at the factory and tested together with the reciprocating
pump (final testing of the pump).
The screen consists of the housing parts, the screen
insert and a pressure relief device (drain plug).
The connection sieve ↔ reciprocating pump is effected
by means of a regulated double nipple.
The characteristics of the screen PN 500:
Permissible operating excess pressure 500 bar
Permissible operating temperature 120° C
Screen area 78 cm2
Mesh size 6 mm
Material of the housing parts in
contact with the fluid austenitic stainless steel (1.4305) or Cr steel
(1.4104) depending on the order.
Pressure container Group V of the pressure container regulations,
therefore no testing necessary
Screen inserts made of stainless steel with different
mesh sizes (catalogue 01.2044, page 14)
A pressure control valve can be fitted instead of the screen or after the screen.
- Observe the relevant user information.
- If the pressure control valve is supplied by us,
user information has been provided.
The hose line connects the reciprocating pump to the
spray gun. However, in most cases it is screwed on to
the screen. The connection hose line ↔reciprocating
pump or the connection to the screen or to the pressure
control valve does not have any sealing (sealed head
screwed joint).
Screen
PN500
Pressure
control valve
Hose line

-
11
- B.6.20.44-B
F22.060.03, issued on 01.98
The characteristics of the hoseline:
Operating temperature -40° to +90°C or higher.
Connection thread generally G 1/4 or G 3/8.
Operating pressure > max. permissible operating excess pressure of the reciprocating
pump (about 400bar).
Electrically conductive, max. permissible resistance 3 x 1041/m (tested to ISO 8031).
The sealing head nipples of the hose fittings are made from austenitic stainless steel or
galvanised and yellow chromatised steel.
Surface lining:
The inside pipeline coating must be resistant to normal solvents,
- the outer coating resistant under certain conditions.
Free from any substances that may interfere with paint spraying such as silicone.
The nozzle or spray gun is installed at the end of the
hose line, connection thread G¼.
- Observe the relevant user information.
- When the nozzle/spray gun has been supplied by
us, user information has been provided.
In special cases, the fluid pressure connection at the reciprocating pump is connected to a
pipeline. The connection must be flexible (to avoid rupture caused by vibration).
The characteristics of the flexible pressure line
correspond to those of the connecting hose line.
Minimum rated width 8
In a large fluid pressure system and in cases
where the pressure system is influenced by heat
(sunrays, heating systems, etc.) it is necessary
to fit a suitable non-return valve between the
tube and the flexible pressure line (to prevent
damage caused by thermal expansion).
EQUIPMENT SUPPORT
The following can be used as a support for MERKUR 2000 reciprocating pumps:
Non-return
valve
Pipeline
Flexible pressure
pipeline
Spray gun

- 12 - B.6.20.44-B
F22.060.02, issued on 01.98
Profiled sheet metal (wall support), stand, container cover, pump trolleys, mechanical
elevating trucks, pneumatic elevating trucks, pneumatic elevating equipment.
Most reciprocating pumps are fixed to the wall of a
building or machine by means of the profiled sheet metal.
If plugs are used for fixing, the drilling hole and screw
length must comply with the manufacturer’s
specifications.
When plugs and corresponding screws are supplied by
us, they comply with the Technical Product Description
B.17.90.01-P.
The stand is used for installation of the reciprocating
pumps on a level base.
The unit "Reciprocating pump with suction tube and stand"
is for rapid exchange of containers, it can be elevated in
order to exchange the container and also put in another
place. Here care should be taken that the stand area is
stable and has as little inclination as possible.
The units "reciprocating pump with suction system and stand" or "Reciprocating pump with
cup and stand" may not be installed as stand-alone equipment; they must be fixed to the floor.
The supplied plugs and associated screws comply with Technical Product Description
B.17.90.01-P.
The vessel cover lies free on the vessel rim and the
reciprocating pump can have its height adjusted at the
center of the cover
By adjusting the height, the unit can be adapted to a wide
variation of vessel bases.
In order to exchange vessels, the complete unit can be
simply raised.
If an agitator is used in the equipment, the directive on flammable liquids (VbF) prohibits the
use of highly flammable class AI and AII fluids.
The directive does not apply if at the place of work (in the container) AI or AII liquid is only
kept in such quantity as is sufficient to continue work.
Profile sheet
Stand
Container
cover

-
13
- B.6.20.44-B
F22.060.03, issued on 01.98
The pump trolleys are two-wheeled transport units. In their
function, they correspond to a bag truck
While in idle position, the load holder is located in front of the
wheels, in running position directly behind
The pump trolley Form I can only have one MERKUR 2000
reciprocating pump mounted on it without any add-on
equipment.
The pump trolley Form II enables the fitting of an additional
flow heater.
Since the trolley wheels cannot be locked, the floor surface on
which the pump trolleys are moved must incline as little as
possible (inclination < 10°).
The occupied pump trolleys are not designed for setting down
abruptly with a lifting apparatus. The wheels are not electrically conductive. This means that in
hazardous locations, zone 1, the pump trolleys can only be used when specific measures are
taken. The carts can be used safely in zone 2, however.
The label on the right is affixed to the pump trolleys
and refers to the guidelines to be observed.
The lifting trolleys and have four
wheels. The undercarriage is
designed as a supporting base for
one container (30 l max.).
The lifting trolleys can only be
occupied with one MERKUR 2000
reciprocating pump without
add-on equipment.
Since the trolley wheels cannot be locked, the floor surface on which the pump trolleys are
moved must incline as little as possible (inclination < 10°).
Fully equipped lifting trolleys are not constructed to be put down vigorously with a lifting tool.
The wheels are not electrically conductive.
Regarding the way they are used, the same applies as for the pump trolleys.
With the mechanical lifting trolley (form III), lifting, maintaining the load in an elevated position
and lowering to starting position is done manually.
- The screw with the star-shaped handle mounted on the side is used for clamping.
Observe
VBG 23, ZH 1/200
Form I
Form II
Form III
Form IV
Star handle
Fluid container
Manual
lever valve

- 14 - B.6.20.44-B
F22.060.02, issued on 01.98
Fast lowering (dropping) can be prevented by manual force.
Lifting height 400
Carrying capacity ca. 40 kg
As for the pneumatic lifting trolley (Form IV), the lifting, maintaining the load in an elevated
position and lowering to starting position is effected by means of a pneumatic hand lever
valve.
- Hand lever up = lift and hold
- Hand lever down = lowering into starting position
A built-in air pressure throttle valve prevents rapid lifting and lowering motion.
Lifting height 400
Carrying capcity about 40 kg
operating air pressure max. 7 bar
Pressure line DN 6
Like the stands and the lifting
trolleys, pneumatic lifting devices
are used for rapid container
change.
The lifting apparatus Form V
corresponds to the pneumatic
lifting trolley with regard to
function - (lifting apparatus
identical in construction).
The lifting apparatus Form VI is a one-pillar design (vertical lifting cylinder). The advantage of
this design is its horizontal swiveling capability.
- The reciprocating pump can be swiveled round from an empty to a full container.
Lifting, maintaining the load in an elevated position and lowering to starting position is effected
by means of a hand lever valve mounted on the side.
A built-in air pressure throttle valve prevents rapid lifting and lowering motion.
Specifications of pneumatic lifting equipment:
Travel of lift 430 mm
Working air pressure 0.3 bar to 1.5 bar
Pressure line DN 6
Fitting of the reciprocating pump also with "container cover with agitator".
The lifting apparatus must be secured to the floor. The supplied screws and plugs
comply with Technical Product Description B.17.90.01-P.
Form V Form VI
Fluid
container Manual
lever valve

-
15
- B.6.20.44-B
F22.060.03, issued on 01.98
–The agitator is identical to the one described on page 8 and in the Technical Product
Description B.18.10.05-P.
TOOL LIST
Open-ended Spanner DIN 895
SW 27 Air pressure hose line (air pressure supply)
SW 30/36 Connection piece for suction system / union nut
SW 35/36 T-connection piece / union nut
SW 17 Hose line DN 6, G 1/4 (fluid pressure system)
SW 22 Hose line DN10, G 3/8 (fluid pressure system)
INSTALLATION
INSTALLATION AND MOUNTINGInstall or fit the reciprocating pumps in a vertical position.
- Wall level and load-bearing.
- Plugs and mounting screws must have correct
dimensions.
Do not install in confined enclosed areas (cabinets)
(malfunctioning due to icing of the air motor control). When
installing in hazardous locations, zone 1, you should
observe the guidelines for explosion prevention (EX-RL) ZH
1/10 (chapter E2), as regards assembly materials.
When a reciprocating pump with container cover and agitator is affixed to the lifting
apparatus, the Directive on Flammable Liquids (VbF) prohibits the use of this assembly
for highly flammable liquids Class AI and AII (agitator design not approved).
The directive does not apply if at the place of work (in the container) AI or AII liquid is
only kept in such quantity as is sufficient to continue work.
Reciprocating pump Sickle spanner, adjustable
Allen Screw
DIN 911 Tubular socket wrench
DIN 659
Open-ended spanner
DIN 895
35 to 60 60 to 90

- 16 - B.6.20.44-B
F22.060.02, issued on 01.98
The reciprocating pumps must not be installed
in Zone 0 (containers).
GROUNDING
In hazardous locations, the appliances must be earthed.
In accordance with the directive on "Static Electricity" ZH 1/200, the following applies:
The grounding connection must be mechanically resistant and corrosion-proof to withstand all
conditions to which it may be subjected during operation. The conductors which establish the
grounding should be connected to appliances and the earth by soldering, welding or stable screw
fittings. Do not use chains. When making connections, in particular to pipelines, ensure that the
conductor is not interrupted by non-conductive parts or during repair work
The grounding connection must be tested for correct working conditions by an authorised engineer.
Grounding points on the appliances are appropriately marked:
Movable, conducting vessels or appliances, which could store an electric charge should also be
earthed. The is usually achieved with a flexible connection that is secured, for example, with a clip.
- Chains may not be used.
VENTILATION OF WORK AREA
Must be ensured
AIR PRESSURE SUPPLY
The compressor and air pressure storage container (pressure tank) must have adequate
dimensions.
- Check
See also page 6, "Quality of air pressure "
CONNECTIONS
Air pressure pipe line ↔reciprocating pump,
Suction pipe line ↔reciprocating pump,
Pressure pipe line ↔reciprocating pump
Flexible and, in hazardous locations, electrically conductive
See pages 5, 8 and 11

-
17
- B.6.20.44-B
F22.060.03, issued on 01.98
COMPRESSED AIR LINE
If an air pressure line must be laid it must have a gradient of 3 to 5 mm per m down to the air
pressure tank or the water trap.
If a branch line has to be made from an existing air pressure
line, this should be carried out above the level of the pipe
axis.
In the case of bends in metal air pipes these should be
selected with a bend radius of the pipe axis not smaller
than 2.5 x the pipe outside diameter.
Plastic lines in hazardous locations must have a conducting resistance to earth of < 106Ω.
AIR PRESSURE CONTROL VALVE (PRESSURE CONTROL VALVE),
MANOMETER AND BALL VALVE
see page 5
If the pressure control valve 1is fitted to the reciprocating
pump it can be adjusted for easier reading of the manometer.
Loosen the set screw 2in the slide housing with the
Allen screwdriver 3
Adjust pressure control valve
Tighten set screw
SOUND ABSORBER
see page 6
Check that the sound absorber is fixed in position by hand.
FLUID SUCTION SYSTEM
see pages 7 to 9
Screw the connector 1or 2into the
reciprocating pump as far as it will go.
Next, back it out 1 to 1.5 turns, to allow the
device to swivel.
Main line
Branch to
consumer

- 18 - B.6.20.44-B
F22.060.02, issued on 01.98
When attaching the suction assembly to the connection 1, pay attention to the following:
Insert the tube end of the suction assembly into the connector and press it against the stop in
the internal taper.
When the end of the tube does not touch the stop, the installation is incorrect.
Continue until clear resistance is felt
– Use the connector as a hold.
Assembly check
Loosen union nut and check whether there is no clearance
between the sealing ring and the retaining ring.
Reassemble after loosening; apply the same torque as the first
time.
Use the connector as a hold.
If the suction assembly has already been fitted to the connector, this unit must be installed first,
e.g. to the wall, before the reciprocating pump is installed.
FLUID PRESSURE SYSTEM (SCREEN PN500)
see pages 10 and 11
The Screen PN 500 is usually fitted to the reciprocating pump.
If it is to be retrofitted, the following should be noted:
Screw off the union nut 1 and remove the screen
housing 2.
Pull the nut 3lightly against the stop of the banjo bolt.
Screw in the connection piece 4 (with banjo bolt and nut)
as far as possible into the reciprocating pump 5.
– Do not forget the sealing ring A 17x21 6.
Tighten the nut 3against the reciprocating pump (lock).
A connector with G 1/4 or G 3/8 thread is screwed into the screen PN 500 for connecting a hose
line.
– Do not forget the sealing ring A 17x21 6.
The connections for the connector and hose lines have no sealing (sealed head connection) and do
not require any special indications.
– The same applies to the connection of the hose line to a spray gun supplied by us.