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BTMT72393

Bostitch BTMT72393 Operation And Maintenance Manual

70101339 13/06
BOSTITCH AIR TOOL SYSTEMS
BEFORE OPERATING THIS TOOL, ALL OPERATORS SHOULD STUDY THIS MANUAL TO UNDERSTAND AND FOLLOW THE SAFETY WARNINGS AND INSTRUCTIONS. KEEP THESE INSTRUCTIONS WITH THE TOOL FOR FUTURE REFERENCE. IF YOU HAVE ANY QUESTIONS, CONTACT YOUR STANLEY­BOSTITCH REPRESENTATIVE OR DISTRIBUTOR.
LIRE ATTENTIVEMENT LE PRÉSENT MANUEL AVANT D’UTILISER L’APPAREIL. PRÉTER UNE ATTENTION TOUTE PARTICULIÈRE AUX CONSIGNES DE SÉCURITÉ ET AUX AVERTISSEMENTS. GARDER CE MANUEL AVEC L’OUTIL POUR FUTUR RÉFÉRENCE. SI VOUS AVEZ DES QUESTIONS, CONTACTEZ VOTRE REPRÉSENTANT OU VOTRE CONCESSIONNAIRE STANLEY-BOSTITCH.
OPERATION AND MAINTENANCE MANUAL
MANUAL DE OPERACIÓN Y DE MANTENIMIENTO
MANUEL D’INSTRUCTIONS ET D’ENTRETIEN
BTMT72393
GRAVITY FEED HVLP SPRAY GUN
PISTOLA ASPERSORA DE ALIMENTACIÓN POR
GRAVEDAD DE ALTO VOLUMEN Y BAJA PRESIÓN (HVLP)
PISTOLET HVP À GRAVITATION
INTRODUCTION
• Fastworking speed and wide fan pattern.
• High transfer efcency means reduced spray mist.
• Stainless steel needle and uid tip allow use with Water borne materials.
• Maximum Operating Pressure: 50 psi
• High efciency design signicantly reduces operating costs.
INDEX
3 Year Limited Warranty .............................................................2
Tool Components, Tool Specications......................................3
Important Safety Instructions ................................................... 4
Warning ...................................................................................... 5
Installation .................................................................................. 6
Operation ....................................................................................7
Maintenance ...............................................................................8
Trouble Shooting Guide ............................................................ 9-10
IMPORTANT
Please make certain that person who is to use this equipment carefully reads and understands these instructions before operating.
3 YEAR LIMITED WARRANTY — U.S. and Canada Only
Stanley warrants this product to the original purchaser for a period of
THREE (3) YEARS
against
deciencies in material and workmanship.
This LIMITED WARRANTY
does not cover products that are improperly used, abused, altered or repaired. Decient products will be replaced or repaired at Stanley's option. Please call 1-800-505-4648 for more information or return instructions.
THIS LIMITED WARRANTY IS GIVEN IN LIEU OF ALL OTHERS INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND EXCLUDES ALL INCIDENTAL OR CONSEQUENTIAL DAMAGES.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so these limitations may not apply to you. This
LIMITED WARRANTY
gives you specic legal rights that may vary from state to state.
SAFETY GUIDELINES - DEFINITIONS
This manual contains information that is important for you to know and understand. This information relates to protecting
YOUR SAFETY
and
PREVENTING EQUIPMENT PROBLEMS
. To help you recognize this
information, we use the symbols below. Please read the manual and pay attention to these sections.
SAFETY
and
PREVENTING EQUIPMENT PROBLEMS
.To help you recognize this information, we
use the symbols below. Please read the manual and pay attention to these sections.
Indicates an imminently hazardous situation which,
if not avoided,
will
result in
death or serious
injury
.
Indicates a potentially hazardous situation which,
if not avoided,
may
result in
minor or
moderate injury
.
Indicates a potentially hazardous situation which,
if not avoided,
could
result in
death or serious injury
.
Used without the
safety alert symbol indicates a potentially hazardous situation which, if not avoided,
may
result in
property damage
.
- 2 -
- 3 -
FIG.1
TOOL COMPONENTS
BTMT72393
Description
Gravity Feed Hvlp Spray Gun
Average Air Consumption
5.6CFM 100% Usage
Fluid output
170cc/min
Air Inlet
1/4" NPS (F)
Weight
0.7095KG (1.56lbs)
Min. Hose Size
3/8" ID
Required PSI
30-50 psi
Fluid inlet
3/8" NPS
Inlet Air Pressure
50 psi
Pattern Width
> 180mm
Nozzle Tip
1.5mm
Air connection
1/4'NPT (M)
Air Valve Nut
Fluid Control Knob
Air Volume Control Knob
Spray Pattern Adjustment
Non-Drip Cup
TOOL SPECIFICATIONS
All dimensions in inches unless otherwise specified.
Material Filter
Horns
Air Cap
- 4 -
Definitions: Safety Guidelines
The definitions below describe the level of severity for each signal word. Please read the manual and pay attention to these symbols.
DANGER: Indicates an imminently hazardous
situation which, if not avoided, will result in death or
serious injury.
WARNING: Indicates a potentially hazardous
situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous
situation which, if not avoided, may result in minor
or moderate injury. CAUTION: Used without the safety alert symbol indi-
cates a potentially hazardous situation which, if not
avoided, may result in property damage.
IMPORTANT SAFETY INSTRUCTIONS
Some dust created by power
sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some example of these chemicals are:
• Lead from lead-based paints
• Crystalline silica from bricks and cement
and other masonry products
• Arsenic and chromium from chemically-treated
lumber
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilat­ed area, and work with approved safety equipment, al ways wear
OSHA/MSHA/NIOSH
approved, properly fit ting face mask or res pi ra tor when us ing such tools.When using air tools, basic safety precau­tions should always be followed to reduce the risk of personal injury.
This product contains chemicals, known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling.
SAVE THESE INSTRUCTIONS
Improper operation or maintenance of this product could result in serious injury and property damage. Read and understand all warnings and operating
instructions before using this equipment. When using air tools, basic safety precautions should always be followed to reduce the risk of personal injury.
Read and understand this instruction manual and tool labels before installing, operating or servicing this tool. Keep these instructions in a safe accessible place.
Operators and others in work area must wear ANSI Z87.1 CAN/CSA Z94.3 approved safety glasses with side shields.
Operators and others in work area must wear ear protection.
Oil daily for optimal performance.
• All persons in the work area must always wear approved eye and hearing protection and approved respiratory protection when this spray gun is in operation.
• Never aim spray gun at anyone. Do not spray near sparks, open flame, lit cigarettes, pilot lights, space heaters or any other potential ignition source, DO NOT SMOKE IN WORK AREA.
• Only persons well acquainted with these rules of safe operation should be allowed to use the air tool .
• Follow manufacturers instructions and safety information to ensure safe handling and proper use of paints, laquers, thinners, base coats, etc. Do not use latex or other heavy paints. They are not recommended for this spray gun.
• Always keep work area free from obstructions and well ventiilated.
• Always disconnect spray gun from air source before disassembly.
• To avoid creating an explosive atmosphere, work only in well ventilated areas.
• Always use respiratory protection to prevent inhalation of harmful fumes and materials.
• Before disassembly or removal of any part of gun or attached components, shut off compressor, release pressure by depressing trigger, and disconnect power source. NEVER assume system pressure is zero!
- 5 -
RISK OF EXPLOSION OR FIRE
WHAT CAN HAPPEN HOW TO PREVENT IT
• When paints or materials are sprayed, they are broken into very small particles and mi xed with air. This will cause certain paints and materials to become extremely flammable and could result in serious injury or death.
• Never spray near open flames or pilot lights in stoves or heaters.
• Never smoke while spraying.
• Provide ample ventilation when spraying indoors.
• 1,1,1-Trichloroethane and Methylene Chloride can chemically react with the aluminum used in most spray equipment, and this gun and cup, to produce an explosion hazard and could result in serous injury or death.
• Read the label or data sheet for the material you intend to spray.
• Never use any type of spray coating material containing these solvents.
• Never use these solvents for equipment cleaning or flushing.
• If in doubt as to whether a material is compatible, contact your material supplier.
RISK TO BREATHING (ASPHYXIATION)
WHAT CAN HAPPEN HOW TO PREVENT IT
• Some paints, coatings and solvents may cause lung damage, and burns if inhaled or allowed to come into contact with skin or eyes.
• Use a NIOSH approved mask or respirator and protective cloth­ing designed for use with your specific application and spray materi­als. Some masks provide only limited protection against toxic materials and harmful paint sol­vent. Consult with a Safety Expert or Industrial Hygienist if uncertain about your equipment or materials.
RISK OF CUT OR BURNS
WHAT CAN HAPPEN HOW TO PREVENT IT
• Spray guns operate at pressures and velocities high enough to penetrate human and animal flesh, which could result in amputation or other serious injury.
! See a physician
immediately !
• Never place hands in front of nozzle.
• Direct spray away from self and others.
• Seek immediate medical attention if direct spray contacts exposed body parts.
RISK FROM FLYING OBJECTS
WHAT CAN HAPPEN HOW TO PREVENT IT
• Certain parts are under pressure whenever the gun is connected to a pressurized air line. These parts may be propelled if the gun is disas­sembled.
• Disconnect the gun from the air line, or completely depressurize the air line whenever the gun is to be disassembled.
• Compressed air may propel dirt, metal shavings, etc. and possibly cause an injury.
• Never point any nozzle or sprayer toward a person or part of the body.
• Always wear ANSI
Z87.1 CAN/CSA Z94.3 approved
safety glasses with side shields.
• Prolonged expo­sure to air spray can result in permanent dam­age to hearing.
• Always wear hear­ing protection when operating spray equipment.
INSTALLATION
AIR SUPPLY
The recommended hook-up is shown in
Figure A.
Pneumatic tools operate on a wide range of air
pressures. For maximum efficiency and longer tool life, the pressure of the air supplied to these tools
MUST
not exceed the rated PSI at the tool when the tool is running. Using a higher than rated pressure will cause faster wear and drastically shorten the tool’s life. A higher air pressure can also cause an unsafe condition and explo­sion. The inside diameter of the hose should be increased to compensate for unusually long air hoses (over 25 feet). Minimum hose diameter should be 3/8” I.D. and fittings should have 1/4” NPT thread. The use of air line lubricators and air line filters is recommended to prevent water in the line that can damage the tool. Drain the air tank daily. Clean the air inlet filter screen on at least a weekly schedule to remove accumulated dirt or other matter that can restrict air flow. The tool’s air inlet used for connecting an air supply has standard 1/4” NPT American thread.
SAFETY RULES FOR PNEUMATIC TOOLS
1) Inspect the air hose for cracks or other problems. Replace the hose if worn.
2) Never point an air hose at another person.
3) Disconnect the tool when not in use, or before performing service or changing accessories.
4) Use proper hoses and fittings. Never use quick change couplings attached to the tool. Instead, add a hose and coupling between the tool and the air supply.
FIGURE A
- 6 -
1/2”(or larger)
Pipe and Fittings
Coupler
Air Hose
Leader Hose
Tool
Nipple
Oiler
Filter
Drain Daily
OPERATION
DO NOT ATTEMPTTO UNCLOG (BACK
FLUSH) SPRAY GUN BY SQUEEZING TRIGGER WHILE HOLDING FINGER IN FRONT OF FLUID NOZZLE.
PRESSURE MAY VARY ACCORDING
TO VISCOSITY OF MATERIAL USED. MAXIMUM WORKING PRESSURE OF GUN IS 50 PSI. DO NOT EXCEED PRESSURE LIMIT OF GUN OR ANY OTHER COMPONENT IN SYSTEM!
PRIOR TO DAILY OPERATION, MAKE
CERTAIN THAT ALL CONNECTIONS AND FITTINGS ARE SECURE. CHECK HOSE AND ALL CONNECTIONS FOR A WEAK OR WORN CONDITION THAT COULD RENDER SYSTEM UNSAFE. ALL REPLACEMENT COMPONENTS SUCH AS HOSE OR FITTINGS MUST HAVE A WORKING PRESSURE EQUAL TO OR GREATER THAN SYSTEM PRESSURE.
Prior to shipment, this gun was treated with an anticorrosive agent. Before using this gun make sure that it is carefully ushed with thinner.
1. The position of the air cap
(H) horns
will determine
the spray pattern. Loosen
(G) air cap
and rotate horns
to achieve desired pattern. Tighten air cap.
2. Attach paint cup to the gun.
NOTE:
The
(F) filter
supplied is optional to protect against contaminants and small particles. See parts list for lter orientation.
3. Attach air supply line to 1/4 NPS air inlet.
NEVER point spray gun at self or any other person.
Accidental discharge of material may result in serious injury.
4. Adjust air pressure at air compressor.
DO NOT exceed 50 psi.
5. Depress spray gun trigger fully to spray material.
NOTE:
Depressing trigger partially will cause only air to be released.
ADJUST SPRAY GUN:
a. Amount of material released (density of “fan spray”) is controlled by
(D) fluid
control knob . Turn knob counterclockwise to increase, or
clockwise to decrease, the uid ow. b. Width of “fan spray” is governed by
(B) spray pattern control knob
. Turn knob counter-clockwise to
increase, or clockwise to decrease, air ow. c. Air quantity is controlled by
(C) air-volume control knob
. Turn knob counterclockwise to increase, or
clockwise to decrease, the air ow.
NOTE:
Care should be exercised when handling spray gun to avoid damage to the orice of the air cap
and tip of uid nozzle. Damage to these parts results in irregular spray patterns.
- 7 -
(A) Air
Valve Nut
(E) Non-Drip Cup
(G) Air Cap
(C) Air
Volume Control Knob
(D) Fluid
Control Knob
(B) Spray
Pattern Adjustment
(H) Horns
(F) Material
Filter
Horizontal position
Vertical position
- 8 -
MAINTENANCE
SHUT OFF AIR COMPRESSOR, RELEASE ALL PRESSURE BY DEPRESSING TRIGGER, AND DISCONNECT POWER SOURCE BEFORE DISASSEMBLY OR REMOVAL OF ANY PART OF THE GUN OR ATTACHED COMPONENTS.
ALWAYS EXERCISE EXTREME CARE WHEN USING ANY SOLVENT OR THINNER. NEVER CLEAN THE GUN NEAR FIRE, FLAME, OR ANY SOURCE OF HEAT OR SPARKS. PROPERLY DISPOSE OF USED CLEANING MATERIALS.
DO NOT SOAK THE ENTIRE SPRAY GUN IN SOLVENT OR THINNER FOR A LONG PERIOD OF TIME AS THIS WILL DESTROY LUBRICANTS AND POSSIBLY IMPAIR OPERATION. NEVER USE LYE OR CAUSTIC ALKALINE SOLUTION FOR CLEANING. SUCH SOLUTIONS WILL ATTACK ALUMINUM ALLOY
PARTS OF THE GUN.
It is important that the spray gun be cleaned after each use.
CLEANING
1. Empty material from gravity feed cup and replace with a suitable solvent or thinner.
2. Operate trigger until all material traces have disappeared and gun is thoroughly clean.
3. Clean air cap with a brush.
4. Wipe the exterior of the spray gun with a solvent soaked cloth or use cleaning brush(es) provided to remove any accumulated material.
IMPORTANT:
Make certain that the air cap and uid nozzle are kept clean at all times. If necessary, remove these two components and soak them in solvent. DO NOT use hard objects to clean clogged holes. The smallest amount of damage may cause irregular spray pattern.
NOTE:
If the uid nozzle is to be removed for thorough cleaning, squeeze the trigger to prevent damage of
the uid needle tip when unscrewing the nozzle.
LUBRICATION
Lubrication procedures must be observed after thoroughly cleaning the gun to ensure effective, high quality performance of spray gun.
1. Lubricate working points with straight mineral oil, or castor oil.
2. Periodically, place a few drops of oil on tapered sections of the uid nozzle to ensure easy operation of the air cap. When spraying water base materials, coat the uid nozzle inside and outside with straight mineral oil after each use.
3. Outer diameter of the needle sleeve in the uid needle assembly must be lubricated occasionally with straight mineral oil.
- 9 -
TROUBLESHOOTING GUIDE
This section provides a list of the more frequently encountered malfunctions, their cause and corrective actions. The operator or maintenance personnel can perform some corrective actions, and others may require the assistance of a qualied Bostitch technician or your dealer.
DEFECTIVE PATTERN LIKELY CAUSE SUGGESTED REMEDY
HEAVY TOP OR
BOTTOM PATTERN
1. Dirty or damaged air cap
2. Dirty or damaged uid tip
1. Rotate air cap 180°. If the pattern follows the air cap, the problem is in the air cap. Clean and inspect the air cap. If the pattern is not corrected, replacement is necessary.
2. If pattern doesn’t follow the air cap, the problem is with the uid tip. Clean and inspect the tip for dried paint, dirt or damage. If the pattern is not corrected, replacement is necessary.
SPLIT PATTERN Air pressure too high for
material viscosity being sprayed.
1. Reduce air pressure.
2. Turn pattern control knob clockwise to decrease fan width. Turn uid needle adjusting nut counterclockwise to increase uid ow.
1. Dirty or distorted air horn holes.
2. One of the air horn holes completely obstructed.
1. Rotate air cap 180°. If the pattern follows the air cap, the problem is in the air cap.
2. Clean and inspect the horn holes. If the horn holes are distorted, replacement is necessary.
GUN SPLITTING Air getting into paint stream
somewhere. Example: Same symptoms as a cup running out paint.
1. Check and tighten uid needle packing nut.
2. Tighten uid tip.
3. Check uid tip seat for damage.
4. Check for poor gun to cup seating.
5. Check that cup is correctly fastened on the gun.
SPITTING, IRREQULAR
OR FLUTTERING SPRAY
1. Fluid nozzle cracked or worn
2. Leak at thread of uid nozzle
3. Leak at uid needle
4. Needle packing worn out
5. Insufcient uid in cup
6. Vent hole in container cover clogged
1. Tighten or replace
2. Tighten uid nozzle
3. Tighten compression nut assembly or replace needle packing
4. Replace packing
5. Fill cup with uid
6. Clean out
AIR BACK
PRESSURING
INTO CUP.
Excessive air blowing back into cup.
1. Tighten uid tip.
2. Check uid tip seat.
3. Check for damaged uid seat on tip or seat on gun head.
- 10 -
TROUBLESHOOTING GUIDE:
This section provides a list of the more frequently encountered malfunctions, their cause and corrective actions. The operator or maintenance personnel can perform some corrective actions, and others may require the assistance of a qualied Bostitch technician or your dealer.
DEFECTIVE PATTERN LIKELY CAUSE SUGGESTED REMEDY
UNATOMIZED
OR SPATTERED
SPRAY
1. Material too heavy
2. Insufcient air pressure
3. Fluid pressure too high
4. Dried material on tip of uid nozzle or air jets of air cap
1. Thin material or use larger orice uid nozzle set
2. Increase pressure to within limit
3. Reduce pressure
4. Clean
INADEQUATE AIR DELIVERY
1. Air needle partially closed
2. Dried material in air jets or air cap
3. Obstruction in air line.
1. Open control knob
2. Clean
3. Remove obstruction
EXCESSIVE FOG 1. Air pressure too high
for viscosity of uid
1. Reduce air pressure and/or open uid control knob
MATERIAL LEAKING
FROM FLUID INLET
OF CUP
1. Loose cup or foreign substances on/between cup thread and uid inlet
1. Tighten and clean or replace it
MATERIAL LEAKING
FROM NOZZLE WHEN
TRIGGER IS RELEASED
1. Worn uid neddle
2. Dried material in tip of nozzle
3. Loose packing nut
1. Replace
2. Clean
3. Tighten needle packing nut by turning counterclockwise
A. Dried material is
clogging side-port “A” and causing side-port “B” to blow spray towards the clogged side
Soak side-ports in thinner to clean clog. DO NOT poke any opening with hard objects.
B. 1. Dried material at
uid nozzle “C” restricts air ow
2. Loose air nozzle
3. Air pressure set too high
1. Remove air nozzle. Wipe off uid tip using a cloth soaked in thinner or by soft brush
2. Fasten nozzle securely
3. Reduce air pressure
A
B
C
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