GRANIT COAT GUN
INTERNAL MIX
GMX-2000
MAGNUM VENUS PLASTECH
GRANITE COAT GUN REPAIR MANUAL REV: 3/29/2007
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TABEL OF CONTENTS:
1. EQUIPMENT SAFTY
2. DISASSEMBLY OF GRANITE COAT GUN
3. ASSEMBLY OF GRANIT COAT GUN
4. PARTS DRAWINGS
5. TROUBLE SHOOTING
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EQUIPMENT SAFETY
Injection Hazard
• DO NOT POINT THE GUN AT ANY PERSON
• NEVER LOOK AT THE GUN FROM THE FRONT (NOZZLE END)
• NEVER trigger an airless gun while it is aimed at a person. The hydraulic pressure
may inject fluid into the flesh, causing injury or death. If the fluid penetrates the
skin it WILL cause serious injury. Clothing, such as gloves will NOT provide
protection. The system is capable of fluid pressure high enough to cause a LETHAL
INJECTION.
• TREAT THE APPLICATOR AS YOU WOULD A LOADED WEAPON.
Before applying pressure to the system, ALWAYS:
• Follow the manufacturer’s operating instructions and maximum pressure
recommendations.
• Secure the trigger in the OFF position and check all pressure connections.
• Use grounded, high pressure fluid lines.
• Check that the pump is properly grounded.
Before disassembly of ANY part of the pressure system (including the applicator or its
nozzle) ALWAYS:
• Shut the pump OFF.
• Discharge the residual fluid and pressure from the applicator.
• Secure the trigger in the OFF position.
Follow these same three procedures anytime that operation is discontinued.
Do NOT undertake any of the following until pressure is relieved from the entire system:
• Loosen or remove the nozzle.
• Disassemble any part of the applicator.
• Loosen or disconnect any fluid line fittings.
• Disassemble any part of the pump.
Be sure that the power to the pump is OFF before undertaking ANY repair, maintenance
or adjustment.
If it is necessary to adjust or clean the nozzle on site, be sure that it is aimed away from
all personnel so that it may discharge safely if there is residual pressure in the system.
Do NOT use any replacement part that does not meet the manufacturer’s specifications.
Correct packing or valve seal leaks IMMEDIATELY.
Frequently check the condition of all pressurized components, especially fluid lines.
Replace worn lines and parts before they fail.
If nozzle clogging occurs frequently, use a fluid filter with proper mesh size.
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PUMPING SYSTEM SAFETY INSTRUCTIONS
Use MVP replacement parts to assure compatible pressure rating. Read ALL warning
and safety instructions carefully before operation of this unit. Heed all warnings.
WARNING: Never allow any part of the human body to come in front of, or in
direct contact with, the material outlet. Accidental operation of the pump could cause
an injection into the flesh. If injection occurs, medical aid must be immediately
obtained from a physician.
Component Rupture: This unit is capable of producing high fluid pressure as stated on
the pump model plate. To avoid component rupture, and possible injury, do not exceed
75 cycles per minute or operate at an air inlet pressure greater than 150 PSI (10 bar).
Servicing: Before servicing, cleaning or removing any component, ALWAYS disconnect
or shut off power source and carefully relieve all fluid pressure from the system.
CAUTION: When pumping, flushing or recirculating volatile solvents, the area must be
adequately ventilated.
CAUTION: Materials and solvent being pumped must be compatible with the parts of
the pump that becomes wetted when in contact with material or solvent. Wetted parts
consist of the following: stainless steel, copper, brass, steel, gray iron, leather, Teflon
and Vellumoid.
CAUTION: Keep solvents away from heat, sparks and open flames. Keep containers
closed when not in use.
Prevent Static Sparking: If static sparking occurs, fire or explosion could result. The
pump, dispensing valve, and containers must be grounded when handling flammable
fluids such as solvents, paints, lacquers, etc., and wherever discharge of static
electricity is a hazard.
Use grounded hoses (static wire) and be sure the object being serviced is grounded if it
can produce a static charge.
Continuity (a good static wire connection) of a hose can be checked by using an
ohmmeter. Place one probe on one hose fitting and the other probe on the other hose
fitting, continuity or proper grounding through hose is good when a reading is obtained
on the ohmmeter.
Air and Lube Requirements: Excessive air pressure will shorten the life of the pump.
Do not operate pump above recommended maximum air pressure. If necessary, an air
regulator should be installed to maintain the desired pressure when the pump is in
operation.
Filtered and oiled air will allow the pump to operate more efficiently and yield a longer
life to operating parts and mechanisms.
Keep oiler supplied with MVP Pump Motor Oil. A filter capable of filtering particles
larger than 50 microns should be used with an oiler.
Maintenance: If the pump is to be inoperative for a lengthy period of time (even for a
few hours) disconnect air and relieve all pressure from system.
Periodically flush pump with a solvent that is compatible with the material being
pumped. Pour a little throat seal lubricant into the solvent cup to keep upper packings
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pliable and to keep material drag-thru soft. Material drag-thru that is allowed to harden,
will score the piston rod. This will create excessive leakage and rapid packing wear.
Disassembly should be done on a clean work bench with clean cloths to keep parts
clean.
If replacement parts are necessary, consult Parts List for identification.
Before assembling, lubricate parts where required. When assembling O-rings, or parts
adjacent to O-rings, care must be exercised to prevent damage to O-ring and O-ring
groove surfaces.
If you have any questions about safety or procedures, contact your Magnum Venus
Products’ representative.
CAUTION: Materials and solvent being pumped must be compatible with the parts of
the pump that becomes wetted when in contact with material or solvent. Wetted parts
consist of the following: stainless steel, copper, brass, steel, gray iron, leather, Teflon
and Vellumoid.
CAUTION: Keep solvents away from heat, sparks and open flames. Keep containers
closed when not in use.
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Important safety information –
HAZARD
CAUSE
SAFEGUARD
Fire
Solvent and coatings can be highly
flammable or combustible,
especially when sprayed.
Adequate exhaust must be provided to
keep air free of accumulations of
flammable vapors.
Smoking must NEVER be allowed in the
spray area.
Fire extinguishing equipment must be
present in the spray area.
Solvent
During cleaning and flushing,
solvents can be forcefully expelled
from fluid and air passages. Some
solvents can cause eye injury.
Wear eye protection.
Inhaling Toxic
Substances
Certain materials may be harmful if
inhaled or if there is contact with
skin.
Follow the requirements of the Material
Safety Data Sheet supplied by your
coating material manufacturer.
Adequate exhaust must be provided to
keep the air free of accumulations of toxic
materials.
Explosion Hazard –
Incompatible Materials
Halogenated hydrocarbon solvents
(for example; Methylene chloride
and 1,1,1-Thrichloroethane) can
chemically react with aluminum.
The chemical reaction caused by
these solvents reacting with
aluminum can become violent and
lead to an equipment explosion.
Guns with Stainless Steel internal
passageways may be used with these
solvents. However, aluminum is widely
used in other spray application equipment
– such as material pumps, regulators,
valves & cups. Check all equipment items
before use and make sure they can also
be used safely with these solvents. 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.
General Safety
Improper operation or maintenance
of equipment.
Operators should be given adequate
training in the safe use & maintenance of
the equipment (in accordance with the
requirement of NFPA-33 Chapter 15).
Users must comply with all local &
national codes of practice and insurance
company requirements governing
ventilation, fire precaution, operation,
maintenance and house keeping. These
are OSHA Section 1910.94 and 1910.107
and NFPA-33. Risk is reduced by avoiding
or lessening factors 1-7.
All equipment must be grounded for static electricity in accordance with NFPA-77. Be sure to relieve all
pressure from system before performing any maintenance. Spray equipment shall be used in spray areas in
accordance with NFPA, OSHA and Country/State/local requirements.
The below potential hazards may cause an injury or loss of life
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WARNING
Static Spark
Can Cause explosion resulting severe
injury or death.
Ground pump and pumping
system
Injection Hazard
Any material injected into flesh can cause
severe injury or death.
Keep body parts away from
outlet device. If an injection
occurs, immediately obtain
medical attention.
Hazardous pressure
Sudden pressure release can cause
severe injury or death.
Pumping system can remain
pressurized when pump is not
operating.
Excessive inlet
pressure
Can cause severe injury or death
Do not exceed the maximum
inlet pressure as stated on the
model plate.
INSPECTION AND MAINTENANCE OF UNIT
1) Check solvent cup to be sure it is 1/3 full.
2) Check catalyst and material levels.
3) Inspect material spray tip and o-ring. Replace if necessary.
4) Inspect catalyst tip assembly and o-rings. Replace if necessary.
5) Inspect tip pin o-rings on front of gun head and replace if nicked or worn.
6) Assemble catalyst tip and material tip onto gun.
7) Lubricate threads on retaining ring and assembly onto gun.
8) Inspect hose assemblies and connections for leaks and wear and tear. Replace if
necessary. Do not wait until hose is so worn that it may burst.
9) Check roving quantity (if applicable).
10) Inspect and replace if necessary:
a) Chopper Blades
b) Anvil Sleeve
c) Cutter Head Bearing
d) Idler Bearing
11) Inspect and adjust if necessary:
a) Cutter head to Anvil Sleeve tension
b) Idler Bearing to Anvil Sleeve tension
c) Check Chopper position for most efficient disbursement of chop into spray
pattern.
12) Oil Cutter assembly Air Motor with Magnum Air Motor Oil as necessary (normally 2 –
3 drops daily, depending on usage).
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PREPARATION AND PRIMING OF “NEW” SYSTEM
1. Be sure all air regulators are turned completely to the left, shutting off air to the
components.
2. Slowly open main air.
3. Prime empty catalyst line:
a. Disengage catalyst pump
b. Open ball valve on catalyst manifold (if applicable)
c. Eliminate air pockets by manually hand pumping the catalyst 5-10 short
strokes (2-3 in.). After eliminating air pockets, and while continuing to
hand pump, close ball valve on catalyst manifold.
d. Pull and hold trigger on gun while hand pumping catalyst pump with short
strokes until there is a solid, steady catalyst flow from the head of the gun.
This will ensure that all air is purged from the line. Release trigger.
e. Continue to hand pump the catalyst with short strokes until catalyst is fully
primed and pressurized (generally within 5 additional strokes or less).
NOTE: Do NOT engage slave pump until material pump has been primed.
4. Material Pump: (be sure catalyst pump is disengaged) Place a container or bucket
under ball valve located at the bottom of the resin filter assembly to catch material
while priming. Open ball valve. Slowly bring up pressure on material pump
regulator just enough to allow pump to stroke up and down evenly. After a
smooth flow of material is flowing from the valve, turn regulator off and close the
valve.
5. Remove mix chamber and turbulent mixer from front of gun. Pull trigger on gun
and allow gun to hang above waste container. Slowly bring up pump pressure
again to allow material to flow out of gun. Release trigger to close gun. Pump will
cycle until it is fully primed and then will stall out.
6. Engage slave pump.
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PREPARATION AND PRIMING OF PREVIOUSLY USED
(shut down) SYSTEM
1. Slowly open main air.
2. Material Pump: (be sure catalyst pump is disengaged) Place a container or bucket
under ball valve located at the bottom of the resin filter assembly to catch material
while priming. Open ball valve. Slowly bring up pressure on material pump
regulator just enough to allow pump to stroke up and down evenly. After a
smooth flow of material is flowing from the valve, turn regulator off and close the
valve.
3. Catalyst Slave Pump:
a. Disengage slave pump.
b. Open ball valve of catalyst manifold (if applicable).
c. Eliminate all air pockets in feed lines by manually pumping catalyst pump
until catalyst exits ball valve. Close ball valve.
d. Remove mix chamber and mixer from front of gun.
e. Open gun by pulling trigger and continue hand pumping until catalyst exits
gun.
f. Leave Catalyst Pump disengaged.
4. Pull trigger on gun and allow gun to hang above waste container. Slowly bring up
pump pressure again to allow material to flow out of gun. Release trigger to close
gun. Pump will cycle until it is fully primed and then will stall out.
5. Flush gun into appropriate container.
6. Engage slave pump.
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SHUT DOWN PROCEDURES FOR SPRAY EQUIPMENT
1. Trigger gun until pump shaft is in the full down position (at bottom of stroke
position).
2. Engage gun trigger lock.
3. Relieving pressures:
a. Close main air valve to system.
b. Purge excess air from system by relieving air from the bottom of the air
filter or water trap.
c. Catalyst pressure: “Dump” or relieve catalyst pressure at catalyst manifold
(if applicable) by opening catalyst ball valve. Pressure will immediately be
relieved. Close the ball valve at once to avoid draining of catalyst from
catalyst line.
d. Material pressure: Place a container under material ball valve at bottom of
fluid filter assembly to catch material flow when relieving pressure. Slowly
open material ball valve to relieve pressure.
Remember - the pump is under extreme pressure. Use the utmost caution when opening
the valve to avoid injury or being sprayed with material. Once material pressure is
relieved, close ball valve.
4. Remove catalyst and material tip assemblies from head of gun and clean
thoroughly.
5. Thoroughly clean diffuser cavity in front of gun head.
6. Inspect entire gun and equipment for over spray and clean.
System is now “shut-down” and ready for the next start-up
Important Notes:
When cleaning gun with solvents, avoid getting solvent in exhaust port of “air
trigger” gun by covering port with thumb or finger while cleaning and pointing
gun downward.
Proper cleanliness habits of your spray equipment goes a long way in keeping
down unnecessary maintenance and repair costs.
AIR PRESSURES
1. Air requirement recommendations:
a. A minimum of 100 psi on main air.
b. 20 - 30 CFM for chopper systems
2. Material pump: 30 - 50 psi
3. Catalyst Atomizing Air: Catalyst atomizing air should be balanced generally
between a range of 15 - 25 psi. It should be low enough to reduce catalyst over spray and high enough to atomize catalyst efficiently. This allows user to attain
and operate under optimum efficiency.
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TESTING SPRAY PATTERN
1. Testing of your spray pattern should be performed away from original part. Use
paper or cardboard to check the following:
2. Spray pattern width and output
3. Catalyzation
4. Spray pattern definition (fingers and tails):
5. Adjust as necessary with the “MVP Air Assist” adjustment screw to give the finest
pattern available by eliminating fingers and tails.
6. Check glass distribution
After completion of the above procedures, you may now confidently use your MVP system
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DISASSEMBLY OF GRANITE GUN GMX-2000
Caution: Always remove fluid pressures before working on the unit.
WARNING: Be careful not to bend the catalyst and resin needles.
1. Remove Catalyst, Resin and Flush fluid pressure from system before disassembly.
2. Remove Catalyst, Resin and Flush lines from the Gun Block Assembly (GMX-2101-
01).
3. Remove Screw (00145) from Trigger Stud (54630-1).
4. Remove Trigger Stud from Gun Handle (54350-3) and Trigger (54360-1).
5. Remove Trigger (54360-1) from gun assembly.
6. To remove the Gun Block Assembly (GMX-2101-01) from Gun Handle (54350-3)
remove Cap Screw (F-CS-04C-12) located at the back center, just above the Gun
Block Assembly (GMX-2101-01).
You now have two components, the Gun Block Assembly and Gun Handle Assembly.
Gun Handle Disassembly (54350-3)
1. Remove Spring Retainers (GMX-2108) and Springs (04039-1).
2. Remove Valve Body Assembly (54440-1) from Gun Handle (54350-3).
3. Remove Spring (04070-1) and Poppet Assembly (MG-2031)
Gun Head Disassembly (GMX-2101-01)
1. Pull Catalyst Needle (CPR-2005-01) from Catalyst Needle Housings (CPR-2003-02)
2. Unscrew Catalyst Needle Housing (CPR-2003-02) from Gun Head (GMX-2101-01)
3. Unscrew Seal Housing (GMX-2104) from Gun Head (GMX-2101-01)
4. Remove Needle Guide (53900-1) and Jam Nut (53800-1) from Needle (GMX-2107-
01)
5. Remove Packing Nut (MG-1022) from Seal Housing (GMX-2104)
6. Pull Material Needle (GMX-2107-01) from the Seal Housings (GMX-2104)
7. Remove Packing Seal (MAX-2008) from Seal Housing (GMX-2104)
8. Remove Seal Retainer (MAX-2009) from Seal Housing (GMX-2104)
9. Remove Nozzle Adapter (58763-1) from Mix Housing (GMX-2112)
10. Remove the Mix Housing (GMX-2112) by unscrewing the two Cap Screws (F-CS1024-16).
11. Take the Catalyst Injector (5104-03-01) out of the Diffuser (GMX-2109) (see Catalyst
Injector Disassembly and Assembly for reference)
12. Remove O-Ring (O-S-016) and Diffuser (GMX-2109) from Mix Housing (GMX-2112)
13. Remove Static Mixer (MIX-1010) from Mix Housing (GMX-2112)
14. Remove Nozzle Adapter (58763-1) from Mix Housing (GMX-2112)
15. Unscrew Fluid Cap (06284) from Nozzle Adapter (58763-1)
16. Remove Retaining Ring (06291) and Air Cap (06285) from Fluid Cap (06284)
17. Remove Flush Valve Assembly (5104-01-01)
18. Remove Catalyst Plug (53110-1)
19. Remove Resin Fitting (MAX-2022) and Catalyst Fitting (MAX-2019).
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Flush Valve Disassembly (5104-01-01)
1. Remove and discard the Flush Valve Split Seal (5104-21-1) from the Flush Valve
Body (5104-24-1)
2. Remove the Flush Elbow Assembly (5104-02-01) from the Flush Valve Neck (510422-1)
3. Remove the Flush Valve Neck (5104-22-1) and the Flush Valve Seal (5104-26-1)
from the Flush Valve Body (5104-24-1). Discard the Flush Valve Seal (5104-26-1)
4. Remove the Flush Seal Body (5104-23-1) from the Flush Valve Button (5104-25-1)
5. Remove the Compression Spring (9203-2-3) form the Flush Valve Body (5104-24-1)
6. Remove and discard the O-Ring (7301-3-007) from the Flush Seal Body (5104-23-1)
7. Remove and discard O-Ring (7301-13-008) from the Flush Valve Button (5104-25-1)
Catalyst Injector Assembly (5104-03-01) Disassembly
See drawing Injector Assembly (5104-03-01) for reference
1. Remove Injector Seal (5104-13-1) from Injector Body (5104-15-1)
2. Unscrew Plunger Retainer (5104-14-1) from Injector Plunger (5104-16-1)
3. Remove Compression Spring (9203-2-2) from Injector Plunger (5104-16-1)
4. Remove Injector Plunger (5104-16-1) from Injector Body (5104-15-1)
Note:
Discard all parts to be replaced by the repair kit. All remaining parts should be
thoroughly cleaned, inspected for damage, and replaced if necessary.
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ASSEMBLY OF GRANIT COAT GUN GMX-2000
Flush Valve Assembly (5104-01-01)
See Drawing Flush Valve Assembly (5104-01-01) for reference
1. Install the O-Ring (7301-13-008)* onto the Flush Valve Button (5104-25-1)
2. Install the O-Ring (7301-3-007) onto the Flush Seal Body (5104-23-1)
3. Install the Compression Spring (9203-2-3) into the Flush Valve Body (5104-24-1)
4. Push the Flush Valve Button (5104-25-1) through the Compression Spring (9203-2-3)
located in the Flush Valve Body (5104-24-1), and screw on and tighten the Flush Seal
Body (5104-23-1)
5. Install the Flush Valve Seal (5104-26-1) onto the Flush Valve Body (5104-24-1) and
thread through the Flush Valve Neck (5104-22-1)
6. Install the Flush Elbow Assembly (5104-02-01) onto the Flush Valve Neck (5104-22-1)
7. Install the Flush Valve Split Seal (5104-21-1) onto the Flush Valve Body (5104-24-1)
Note: O-Ring (7301-11-008) KALREZ use with any solvent. * In some cases O-Ring (7301-
13-008) EPR can be substituted for as a less expensive alternative - DO NOT USE GREASE
WITH EPR O-RING.
Catalyst Injector Assembly (5104-03-01) Assembly
See drawing Injector Assembly (5104-03-01) for reference
1. Slide Injector Plunger (5104-16-1) thru Injector Body (5104-15-1)
2. Slide Compression Spring (9203-2-2) over Injector Plunger (5104-16-1)
3. Screw Plunger Retainer (5104-14-1) onto Injector Plunger (5140-16-1)
4. Install new Injector Seal (5104-13-1) onto Injector Body (5104-15-1
Gun Head Assembly (GMX-2101-01)
Warning: Do not apply grease or oil to Catalyst areas.
1. Place New O-Ring (O-S-012) on Catalyst Fitting (MAX-2019) and Resin Fitting (MAX-
2022). Install both fittings into gun, making sure they are on the correct sides of the
gun block
2. Install new Seal (02441-1) onto Plug (53110-1) then thread Plug into Gun Block
3. Install Flush Valve Assembly (5104-01-01) into resin side of Gun Block
4. Install Diffuser (GMX-2109) into the Mix Housing (GMX-2112)
5. Install new O-Ring (O-S-016) or into Mix Housing (GMX-2112)
6. Insert Catalyst Injector Assembly (5104-03-01) into Diffuser (GMX-2109)
7. Attach Mix Housing (GMX-2112) to Gun Block (GMX-2101-01) using the two (2) Cap
Screws (F-CS-1024-16).
8. Screw Nozzle Adapter (58763-1) onto Mix Housing (GMX-2112)
9. Install new Seal (06286) onto Fluid Cap (06284)
10. Thread Fluid Cap (06284) into Nozzle Adapter (58763-1)
11. Install Air Cap (06285) and Retaining Ring (06291) onto Fluid Cap (06284)
12. Install new O-Ring (O-S-012) into Catalyst Needle Seat area of the Gun Block
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13. Install new O-Ring (O-S-012) on Catalyst Needle Housing (CPR-2003-02) and thread
into Gun Block
14. Install new O-Ring (O-S-012) on Seal Housing (GMX-2104)
WARNING: Be careful not to bend the catalyst and resin needles.
15. Insert Resin Needle (GMX-2107-01) into Seal Housing (GMX-2104)
16. Install Seal Retainer (MAX-2009) into Seal Housing (GMX-2104) over Resin Needle
(GMX-2107-01)
17. Install new Packing Seal (MAX-2008) into Seal Housing (GMX-2104) over Resin
Needle (GMX-2107-01)
18. Screw Packing Nut (MG-1022) into Seal Housing (GMX-2104) over Resin Needle
(GMX-2107-01). Tighten only enough to prevent leaking.
19. Install Needle Guide (53900-1) and Jam Nut (53800-1) onto Resin Needle (GMX-
2107-01)
20. Thread Seal Housing (GMX-2104) and Resin Needle (GMX-2107-01) assembly into
Gun Block (GMX-2101-01), lightly grease threads.
21. Install new O-Ring (O-S-006) onto the Catalyst Piston Needles (CPR-2005-01)
22. Insert Catalyst Piston Needle (CPR-2005-01) into the Catalyst Needle Housing (CPR-
2012-01)
Gun Handle Assembly (54350-3)
1. Apply lubricant to Springs (04039-1) and insert into Gun Handle (54350-3)
2. Thread Spring Retainers (GMX--2108) over Springs (04039-1) into Gun Handle
(54350-3)
3. Slide Spring (04070-1) onto the end of the Poppet Assembly (MG-2031)
4. Insert Poppet Assembly (MG-2031) into Valve Body (54440-1)
5. Slide new O-ring (O-S-104A) over Poppet Assembly (MG-2031) and retain with
Packing Retainer (54420-1)
6. Screw Assembled Valve Body (54440-1) into the Gun Handle (54350-3)
Assembly Gun Head (CPR-2001-01) and Gun Handle (MAX-205)
WARNING: Be careful not to bend the catalyst and resin needles.
1. Attach the Gun Block Assembly (CPR-2001-01) to the Gun Handle (MAX-2025) using
Cap Screw (F-CS-04C-12).
2. Slide Trigger (54360-1) into place against the needles and line up the holes with the
handle.
3. Push Trigger Stud (54630-1) thru both the Trigger (54360-1) and the Gun Handle
(MAX-2025) and retain with Screw (00145).
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Gun Adjustment and Start Up
1. Make sure trigger and trigger bar are no worn, loose or damaged before adjusting
gun or needle guides.
2. Adjust the Resin Needle Guide and Jam Nut so they will open just before the
Catalyst Needle, never catalyst first. How much you open the resin needle before
you open the catalyst needle will depend on the resin viscosity and may have to be
changed as the resin temperature changes. See the Testing and Adjusting Manual
(12016-2) for testing your gun.
3. Test the gun by putting 100psi of air to the catalyst and resin fittings and putting the
gun in a tub of water.
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PARTS DRAWINGS:
GMX-2000 GRANITE COAT GUN ASSEMBLY DRAWING
GMX-2000-SK SEAL KIT – GRANITE COAT GUN
5104-03-01 INJECTOR ASSEMBLY
5104-01-01 FLUSH VALVE ASSEMBLY
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21
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TROUBLE SHOOTING:
Catalyst Problems:
1. Catalyst leaking around Needle (inside Needle Housing CPR-2003-02)
Replace O-Ring (O-S-006) on Needle
Check for excessive pressure in catalyst system
2. Catalyst leaking around Needle Housing
Replace O-Ring (O-S-012) on Needle Housing (CPR-2003-02)
3. Catalyst leaking from the Mix Housing / front of the gun
Check Piston Needle (CPR-2005-01) for wear or damage
Replace Catalyst Seat (CPR-2012-02) or Catalyst Housing/Seat (CPR-
2012-01)
Replace O-Ring (O-S-012) under the catalyst seat
Damaged or Weak Return Spring (04039-1), replace as needed
Check for excessive pressure in catalyst system
4. Catalyst leaking from around plug on the side of the gun head
Replace plug Seal (02441-1)
5. No catalyst from the gun
Make sure trigger is pulling catalyst needle back / open
Check Catalyst Injector (5104-03-01) for proper operation (see drawing
5104-03-01)
Check Gun Head for blockages
Check catalyst pump for proper operation (See catalyst pump manual)
6. Catalyst leaking between fitting and gun block
Replace O-Ring (O-S-012)
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Resin Problems:
1. Resin leaking around Needle (inside Packing Nut MG-1022)
Tighten Packing Nut (MG-1022) a little
Replace Packing Seal (MAX-2008) in packing nut
2. Resin leaking around Seal Housing
Replace O-Ring (O-S-012) on Seal Housing (GMX-2104)
3. Resin leaking from the Mix Housing / front of the gun
Check Needle (GMX-2107-01) for wear or damage
Check Gun Head seat area for wear or damage
Damaged or Weak Return Spring (04039-1), replace as needed
Check for excessive pressure in resin system
4. No Resin from the gun
Make sure trigger is pulling resin needle back / open
Check Gun Head for blockages
Check resin pump for proper operation (See resin pump manual)
5. Resin leaking between fitting and Gun Head
Replace O-Ring (O-S-012)
Flush Problems: (reference drawing 5104-01-01)
1. Solvent leaking from around flush button (inside flush body)
Replace O-Ring (7301-11-008) on valve button
2. Solvent leaking from around flush neck (next to gun block)
Replace Split Seal (5104-21-1)
3. Solvent leaking from between the flush neck and flush body
Replace Flush Valve Seal (5104-26-1)
4. Solvent leaking around flush elbow fitting
Tighten flush swivel Elbow Fitting (7701-6-1)
Replace Nylon Seal (7304-3-1)
Replace flush swivel Elbow Fitting (7701-6-1)
5. Solvent leaking for Mix Housing / front of the gun
Check for debris in seal area or damage to flush body
Replace O-Ring (7301-3-007) on flush seal body
Check for excessive pressure is flush system, set to no more than 80psi
General Problems:
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1. Material leaking from around the mix chamber
Replace Mix Housing Seal (O-S-016) or Mix Housing Seal (5104-12-1)
Replace Catalyst Injector Seal (5104-13-1)
2. Air leaking for around poppet needle
Tighten Retainer (54420-1) (caution do not over tighten, this will make the
poppet needle move slowly or not move at all.
Replace O-Ring (O-S-104A)
3. Air leaking from around poppet valve body
Tighten Poppet Valve Body (54440-1) into Gun Handle (54350-3)
4. Air leaking from fitting on handle or to spatter nozzle
Retainer (54420-1) may be too tight and holding valve open
Check Poppet Assembly (MG-2031) for wear or damage
Check Poppet Valve Body (54440-1) seat area for wear or damage
5. Material leaking from around nozzle adapter
Tighten Nozzle Adapter (58763-1) (caution do not over tight or you may
damage seal 02030-1)
Check front of Mix Housing (GMX-2112) for damage or wear
Check Seal (06286) for damage or wear
Tighten Fluid Cap (06284) into Adapter (58763-1)
6. Trigger Action stiff or hard
Check Trigger (54360-1) for damage
Check Trigger Stud (54630-1) and Screw (00145) for damage, remove
and lubricate as needed.
Check Needle Guides (53900-1) and Spring (04039-1) for damage,
remove and lubricate as needed
Check Spring Retainer (54000-1) for wear or damage
Check around Needles and Needle Housings for hardened or sticky
material
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Corporate HQ/Mfg. Manufacturing/Sales
5148 113th Ave. 1862 Ives Ave.
Clearwater, FL 33760 USA Kent, WA 98032 USA
Ph: (727) 573-2955 Ph: (253) 854-2660
Fax: (727) 571-3636 Fax: (253) 854-1666
E-mail: info@mvpind.com Web: www.mvpind.com
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