I.C.T.C. Holdings Corporation 1240 Paint Sprayer User Manual


 
HERO Operator’s Manual Page 16 of 23
enlarge the holes of these critical parts and affect the performance of your system when used.
When re-assembling the gun, it is recommended to apply a little white grease or petroleum jelly on all
threaded and tight tolerance parts: Material Flow Adjustment Screw and Spring; Air Distributor; Sleeve
Nut; tip of Needle.
4.4 CHANGING THE NEEDLE, FLUID TIP AND AIR CAP
Select the Needle, Fluid Tip and Air Cap combination based on the coating being sprayed, the application
speed and finish required. Select the combination that performs best with the trigger fully engaged.
Needles and Fluid Tips are sized together when changing the Needle, the Fluid Tip must be changed as
well. Air Caps are sized separately and can be changed without changing the Needle and Fluid Tip:
1. To Change The Needle: Completely unscrew the Material Flow Adjustment Screw at the back
of the gun and remove the Spring and Needle if necessary, squeeze the trigger to help remove
the Needle.
2. To Change The Fluid Tip: Completely unscrew the Sleeve Nut on the barrel of the gun and
remove the Air Cap, Air Distributor, and Air Distributor Spring (Air Cap only on models without
Floating Air Cap). Using a 1/2” socket and a ratchet, remove the Fluid Tip.
3. To Change The Air Cap: Completely unscrew the Sleeve Nut on the barrel of the gun and
remove the Air Cap, Air Distributor, and Air Distributor Spring (Air Cap only on models without
Floating Air Cap).
To re-install the Air Distributor after changing the Fluid Tip and/or Air Cap:
1. Place the Air Distributor Spring in the barrel of the gun.
2. Place the Air Distributor on the Air Distributor Spring with the recessed side inward, and the ball
guide lined up with the groove in the Distributor Housing.
3. Press the Air Distributor into the Distributor Housing, making sure that the ball guide is sliding
into the groove in the Distributor Housing, and hold it in place.
4. Slide the Air Cap over the Air Distributor, and hold it in place.
5. Place the Sleeve Nut on your index finger. Use the tip of the same index finger to hold the Air
Cap on the Air Distributor and screw the Sleeve Nut in place.
4.5 REPLACING THE CUP TOP GASKET
The Cup Top Gasket on the underside of the Cup Top should be replaced periodically as part of
preventive maintenance. A worn Cup Top Gasket can be the cause of material leaking from the paint cup
and/or bubbling under the paint cup top when the gun is in use.
To Replace The Cup Top Gasket:
1. Remove the Paint Cup from the gun.
2. Remove the Cup Top Gasket using a pointed object or screwdriver.
3. Replace with a new gasket, making sure it is placed flat and properly pressed in place.
4.6 REPLACING THE GLAND SEAL