Ransburg 75902 User Manual

SERVICE MANUAL
LN-9228-00.3
(Replaces LN-9228-00.2)
January - 2013

DR-1TM PLASTIC FLUID REGULATOR

MODEL: 75902

IMPORTANT: Before using this equipment, carefully
read SAFETY PRECAUTIONS, starting on page 1, and all
instructions in this manual. Keep this Service Bulletin
for future reference.

Service Manual Price: $20.00 (U.S.)

NOTE: This manual has been changed from revision LN-9228-00.2 to revision LN-9228-00.3. Reasons for
this change are noted under “Manual Change Summary” inside the back cover of this manual.

CONTENTS

DR-1 Plastic Fluid Regulator - Contents

PAGE

SAFETY:

SAFETY PRECAUTIONS............................................................................................................

HAZARDS / SAFEGUARDS........................................................................................................

INTRODUCTION:

FEATURES...................................................................................................................................

SPECIFICATIONS.......................................................................................................................

DR-1 FLOW VS. SIGNAL PRESSURE.......................................................................................

OPERATION:

OPERATION................................................................................................................................

MAINTENANCE:

TOOLS REQUIRED.....................................................................................................................

PRELIMINARY PROCEDURES..................................................................................................

DISASSEMBLY PROCEDURES.................................................................................................

REGULATOR EXPLODED VIEW...............................................................................................

ASSEMBLY PROCEDURES.......................................................................................................

FITTING ALIGNMENT.................................................................................................................

TEST PROCEDURES.................................................................................................................

PREVENTIVE MAINTENANCE...................................................................................................

TROUBLESHOOTING GUIDE....................................................................................................

1-4

1
2-4

5-6

5
5
6

7-8

7

9-14

9
9
9
10
11
12
12
12
13

PARTS IDENTIFICATION:

REGULATOR CROSS-SECTIONAL VIEW................................................................................

DR-1 PLASTIC FLUID REGULATOR PARTS LIST /

RECOMMENDED SPARE PARTS.............................................................................................

WARRANTY POLICIES:

WARRANTY FOR THE DR-1 PLASTIC FLUID REGULATOR.................................................

15-16

15

16

17

17

DR-1 Plastic Fluid Regulator - Safety

SAFETY

SAFETY PRECAUTIONS

Before operating, maintaining or servicing any Rans­burg electrostatic coating system, read and under­stand all of the technical and safety literature for your
Ransburg products. This manual contains information
that is important for you to know and understand. This
information relates to USER SAFETY and PREVENTING
EQUIPMENT PROBLEMS. To help you recognize this
information, we use the following symbols. Please
pay particular attention to these sections.

A WARNING! states information to alert you to a situ­ation that might cause serious injury if instructions
are not followed.

A CAUTION! states information that tells how to
prevent damage to equipment or how to avoid a
situation that might cause minor injury.

A NOTE is information relevant to the procedure in
progress.

While this manual lists standard specications and
service procedures, some minor deviations may be
found between this literature and your equipment.
Dierences in local codes and plant requirements,
material delivery requirements, etc., make such
variations inevitable. Compare this manual with
your system installation drawings and appropriate
Ransburg equipment manuals to reconcile such
dierences.

W A R N I N G

!

> The user MUST read and be familiar with the

Safety Section in this manual and the Ransburg
safety literature therein identied.

> This manual MUST be read and thoroughly

understood by ALL personnel who operate, clean
or maintain this equipment! Special care should
be taken to ensure that the WARNINGS and safety
requirements for operating and servicing the
equipment are followed. The user should be
aware of and adhere to ALL local building and
re codes and ordinances as well as NFPA-33
SAFETY STANDARD, prior to installing, operating,
and/or servicing this equipment.

W A R N I N G

!

> The hazards shown on the following page

may occur during the normal use of this equip­ment. Please read the hazard chart beginning
on page 2.

Careful study and continued use of this manual will
provide a better understanding of the equipment and
process, resulting in more ecient operation, longer
trouble-free service and faster, easier troubleshooting.
If you do not have the manuals and safety literature
for your Ransburg system, contact your local Ransburg
representative or Ransburg.

1

LN-9228-00.3

DR-1 Plastic Fluid Regulator - Safety

AREA

Tells where hazards

may occur.

Spray Area

HAZARD

Tells what the hazard is.

Fire Hazard

Improper or inadequate operation­ing and maintenance procedures
will cause a re hazard.

Protection against inadvertent arc­ing that is capable of causing re or
explosion is lost if any safety inter­locks are disabled during operation.
Frequent power supply shutdown
indicates a problem in the system
requiring correction.

SAFEGUARDS

Tells how to avoid the hazard.

Fire extinguishing equipment must be present in the
spray area and tested periodically.

Spray areas must be kept clean to prevent the accumula­tion of combustible residues.

Smoking must never be allowed in the spray area.

The high voltage supplied to the atomizer must be
turned o prior to cleaning, ushing or maintenance.

When using solvents for cleaning:

Those used for equipment ushing should have ash
points equal to or higher than those of the coating
material.

Those used for general cleaning must have ash points
above 100°F (37.8°C).

Spray booth ventilation must be kept at the rates re­quired by NFPA- 33, OSHA, and local codes. In addition,
ventilation must be maintained during cleaning opera­tions using ammable or combustible solvents.

Electrostatic arcing must be prevented.

Test only in areas free of combustible material.

Testing may require high voltage to be on, but only as
instructed.

Non-factory replacement parts or unauthorized equip­ment modications may cause re or injury.

If used, the key switch bypass is intended for use only
during set-up operations. Production should never be
done with safety interlocks disabled.

Never use equipment intended for use in waterborne
installations to spray solvent based materials.

The paint process and equipment should be set up and
operated in accordance with NFPA-33, NEC, and OSHA
requirements.

LN-9228-00.3

2

DR-1 Plastic Fluid Regulator - Safety

AREA

Tells where hazards

may occur.

General Use and
Maintenance

Electrical
Equipment

HAZARD

Tells what the hazard is.

Improper operation or maintenance
may create a hazard.

Personnel must be properly trained
in the use of this equipment.

High voltage equipment is utilized.
Arcing in areas of ammable or
combustible materials may occur.
Personnel are exposed to high
voltage during operation and
maintenance.

Protection against inadvertent arc­ing that may cause a re or explosion
is lost if safety circuits are disabled
during operation.

Frequent power supply shut-down
indicates a problem in the system
which requires correction.

An electrical arc can ignite coating
materials and cause a re or explo­sion.

SAFEGUARDS

Tells how to avoid the hazard.

Personnel must be given training in accordance with
the requirements of NFPA-33.

Instructions and safety precautions must be read and
understood prior to using this equipment.

Comply with appropriate local, state, and national codes
governing ventilation, re protection, operation main­tenance, and housekeeping. Reference OSHA, NFPA-33,
and your insurance company requirements.

The power supply, optional remove control cabinet,
and all other electrical equipment must be located
outside Class I or II, Division 1 and 2 hazardous areas.
Refer to NFPA-33.

Turn the power supply OFF before working on the
equipment.

Test only in areas free of ammable or combustible
material.

Testing may require high voltage to be on, but only as
instructed.

Production should never be done with the safety cir­cuits disabled.

Before turning the high voltage on, make sure no objects
are within the sparking distance.

Explosion Hazard /
Incompatible
Materials

3

Halogenated hydrocarbon solvents
for example: methylene chloride
and 1,1,1,-Trichloroethane are not
chemically compatible with the
aluminum that might be used in
many system components. The
chemical reaction caused by these
solvents reacting with aluminum
can become violent and lead to an
equipment explosion.

Aluminum is widely used in other spray application
equipment - such as material pumps, regulators, trig­gering valves, etc. Halogenated hydrocarbon solvents
must never be used with aluminum equipment during
spraying, ushing, or cleaning. Read the label or data
sheet for the material you intend to spray. If in doubt as
to whether or not a coating or cleaning material is com­patible, contact your material supplier. Any other type
of solvent may be used with aluminum equipment.

LN-9228-00.3

DR-1 Plastic Fluid Regulator - Safety

AREA

Tells where hazards

may occur.

Toxic Substances

HAZARD

Tells what the hazard is.

Certain material may be harmful if
inhaled, or if there is contact with
the skin.

SAFEGUARDS

Tells how to avoid the hazard.

Follow the requirements of the Material Safety Data
Sheet supplied by coating material manufacturer.

Adequate exhaust must be provided to keep the air
free of accumulations of toxic materials.

Use a mask or respirator whenever there is a chance
of inhaling sprayed materials. The mask must be
compatible with the material being sprayed and its
concentration. Equipment must be as prescribed by
an industrial hygienist or safety expert, and be NIOSH
approved.

LN-9228-00.3

4