Graco Inc. Indy-X Chop User Manual

Before  performing  maintenance  on  the  dispense  gun, 

follow Pressure Relief Procedure.

Due to the different o-ring materials and lubricants used 

in the dispense guns, never submerge or soak any dis-

pense gun in any type of solvent. Submerging or soak-
ing any dispense gun will immediately void the gun war-
ranty.

  1.   Read each procedure entirely before beginning  
        and refer to the illustration views as needed.

  2.   Flush and clean all passages as they become 
        accessible.

  3.   Clean all parts before assembly.

  4.   Replace all O-Rings, Valves and Seals with new 

        parts from the appropriate kit.

  5.   Inspect all parts for wear or damage and replace  

        as required with new GENUINE GlasCraft 

        REPLACEMENT PARTS from your authorized 

        GlasCraft Distributor.

  6.   Inspect all threads for wear or damage and 
        replace as required.

  7.   Tighten all threaded parts securely, but not
        excessively, upon assembly.

  8.   O-rings can fail if subjected to any of the 
        following conditions.

                 a.   Swelling - coming in contact with 
                       solvent or oil from compressor.
                 b.   Cut - sharp, unlubricated edge in gun 
                       head or handle.

                 c.   Sticky - contaminated with oil, water, 
                       solvent, catalyst, resin or gel-coat.

                 d.   Chaffing - dry sliding surfaces (needs 
                       lubrication).

9.  Lightly lubricate all O-Rings with petroleum jelly.

10.  Check all springs for resilience.  They should

       return quickly to their original (new) length.

11.  Clean the exterior of the Gun and Hoses with
       an appropriate, clean solvent and cloth or brush.  

1.   Relieve pressure (See page 19).

        2.   Remove Resin Hose with an 11/16” wrench.

              (Hold delivery tube with an 11/16 wrench.) 

        3.   Remove Catalyst Hose with a 9/16” wrench.

              (Hold delivery tube with a 9/16 wrench.) 

 

 4.   Remove Air / Flush Block with an 5/32” Allen 

             wrench. Remove block, watch for spring and 

             ball from Air Valve

Isocyanites (ISO) are catalysts used in two component 
foam and polyurea coatings. ISO will react with moisture 
(such as humidity) to form small, hard, abrasive crystals, 
which become suspended in the fluid. Eventually a film 
will form on the surface and the ISO will begin to gel, 
increasing in viscosity. If used, this partially cured ISO 
will reduce performance and the life of all wetted parts.

To prevent exposing ISO to moisture:

Always use a sealed container with a desiccant 
dryer in the vent, or a nitrogen atmosphere. 

Never 

store ISO in an open container.

Keep the ISO lube pump reservoir (if installed) filled 
with Graco Throat Seal Liquid (TSL), Part 206995. 
The lubricant creates a barrier between the ISO and 
the atmosphere.

Use moisture-proof hoses specifically designed for 
ISO, such as those supplied with your system.

Never use reclaimed solvents, which may contain 
moisture. Always keep solvent containers closed 
when not in use.

Never use solvent on one side if it has been contam-
inated from the other side.

Always lubricate threaded parts with ISO pump oil 
or grease when reassembling.

Some foam blowing agents will froth at temperatures 
above 90°F (33°C) when not under pressure, especially 
if agitated. To reduce frothing, minimize preheating in a 
circulation system.

Spraying materials containing isocyanates creates 
potentially harmful mists, vapors, and atomized partic-
ulates.

Read material manufacturer’s warnings and material 
MSDS to know specific hazards and precautions 
related to isocyanates.

Prevent inhalation of isocyanate mists, vapors, and 
atomized particulates by providing sufficient ventila-
tion in the work area. If sufficient ventilation is not 
available, a supplied-air respirator is required for 
everyone in the work area.

To prevent contact with isocyanates, appropriate per-
sonal protective equipment, including chemically 
impermeable gloves, boots, aprons, and goggles, is 
also required for everyone in the work area.

Some materials may become self-igniting if applied 
too thickly. Read material manufacturer’s warnings 
and material MSDS.

The amount of film formation and rate of crystalli-
zation varies depending on the blend of ISO, the 
humidity, and the temperature.

To prevent cross-contamination of the equipment’s 
wetted parts, 

never interchange component A (isocy-

anate) and component B (resin) parts.