background image

EN

SB-2-779-R1  (4/2018)

7 / 12

www.carlisleft.com

TROUBLESHOOTING

CONDITION

CAUSE

CORRECTION

Heavy top or 

bottom pattern

Horn holes plugged.

Obstruction on top or bottom of fluid tip.

Cap and/or tip seat dirty.

Clean. Ream with non-metallic point.

Clean.

Clean.

Heavy right or left 

side pattern

Left or right side horn holes plugged.

Dirt on left or right side of fluid tip.

Clean. Ream with non-metallic point.

Clean.

Remedies for the top-heavy, bottom-heavy, right-heavy, and left-heavy patterns:

1.  Determine if the obstruction is on the air cap or the fluid tip. Do this by making a test spray 

pattern. Then, rotate the cap one-half turn and spray another  pattern. If the defect is inverted, 

obstruction is on the air cap. Clean the air cap as previously instructed.

2.  If the defect is not inverted, it is on the fluid tip. Check for a fine burr on the edge of the fluid tip. 

Remove with #600 wet or dry sand paper.

3.  Check for dried paint just inside the opening; remove by washing with solvent.

Heavy center pattern

Fluid flow too high for atomization air.

Material flow exceeds air cap's capacity. 

Spreader adjustment valve set too low.

Atomizing pressure too low.

Material too thick.

Balance air pressure and fluid flow. Increase spray 

pattern width with spreader adjustment valve.

Thin or lower fluid flow.

Adjust.

Increase pressure.

Thin to proper consistency.

Split spray pattern

Atomization air pressure too high.

Fluid flow too low.

Spreader adjusting valve set too high.

Reduce at transformer or gun.

Increase fluid flow (increases gun handling speed).

Adjust.

Jerky or fluttering spray

*Loose or damaged fluid tip/seat.

Material level too low.

Container tipped too far.

Obstruction in fluid passage.

Dry or loose fluid needle packing nut.

Tighten or replace.

Refill.

Hold more upright.

Backflush with solvent.

Lubricate or tighten.

Unable to get round spray

Spreader adjustment screw not seating 

properly.

Air cap retaining ring loose.

Clean or replace.

Tighten.

*Most common problem.

DPC-31

DeKUPS

®

 ACCESSORIES

Summary of Contents for FLG-CNG-115

Page 1: ... Pressure 100 psi Gun Body Forged Aluminum Fluid Path Anodized Aluminum Air Inlet 1 4 NPS male Gun Weight 18 13 oz 514 g IMPORTANT DO NOT DESTROY It is the Customer s responsibility to have all operators and service personnel read and understand this manual Contact your local DeVilbiss representative for additional copies of this manual READ ALL INSTRUCTIONS BEFORE OPERATING THIS DEVILBISS PRODUCT...

Page 2: ...nts 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 and this gun and cup Check all equipment items before use and make sure they can al...

Page 3: ...ll an HAV 501 air gauge at the gun handle and air cap test kit over tip When gun is triggered on adjust regulated pressure to desired setting to provide a maximum of 10 psi at the air cap Do not use more pressure than is necessary to atomize the material being applied Excess pressure will create additional overspray and reduce transfer efficiency Note If quick connects are required use only high f...

Page 4: ...CEMENT Note When replacing the fluid tip or fluid needle replace both at the same time Using worn parts can cause fluid leakage Also replace the needle packing and fluid tip seal at this time Lightly lubricate the threads of the fluid tip before reassembling Torque to 15 20 ft lbs Donotovertightenthefluidtip The fluid tip part number and tip size are stamped around the outside of the fluid tip See...

Page 5: ...EN SB 2 779 R1 4 2018 5 12 www carlisleft com DeKUPS HOW TO USE THE SYSTEM 9 10 11 5 6 7 8 1 2 3 4 ...

Page 6: ... 1 6 FLG4 364 K Needle Knob Spring Bushing Gasket Kit 1 7 FLG4 366 K FLG4 Needle Needle Packing Nut Kit 1 8 FLG4 468 K Air Valve Gasket Kit 1 9 P MB 51 Air Inlet Nipple 1 10 FLG4 108 K Trigger Trigger Stud Screw 1 FLG 463 Air Cap 3 HVLP Test Cap JGA 4035 K5 Needle Packing Kit of 5 FLG4 488 K t FLG4 Gun Repair Kit Contains 1 each Fluid Tip Seal Needle Packing Trigger Stud Trigger Screw and Gasket f...

Page 7: ...sand paper 3 Check for dried paint just inside the opening remove by washing with solvent Heavy center pattern Fluid flow too high for atomization air Material flow exceeds air cap s capacity Spreader adjustment valve set too low Atomizing pressure too low Material too thick Balance air pressure and fluid flow Increase spray pattern width with spreader adjustment valve Thin or lower fluid flow Adj...

Page 8: ...leaking from packing nut Packing nut loose Packing worn or dry Tighten do not bind needle Replace or lubricate Fluid leaking or dripping from front of gun Packing nut too tight Dry packing Fluid tip or needle worn or damaged Foreign matter in tip Fluid needle spring broken Wrong size needle or tip Adjust Lubricate Replace tip and needle Clean Replace Replace Fluid dripping or leaking from bottom o...

Page 9: ...z bottles Compatible with all paint materials containsnosiliconeor petroleum distillates to contaminate paint MSDS available upon request Quick Connects For HVLP Guns Air High Flow Type HC 4419 Stem 1 4 NPT F Gun End HC 4699 Coupler 1 4 NPT M Hose End 29 3100 Scrubs Hand Cleaner Towels S c r u b s a r e a premoistened hand cleaner towel for painters body men and mechanics that go where you go and ...

Page 10: ...EN SB 2 779 R1 4 2018 10 12 www carlisleft com NOTES ...

Page 11: ...EN SB 2 779 R1 4 2018 11 12 www carlisleft com NOTES ...

Page 12: ...ations Region Industrial Automotive Automotive Refinishing Americas Tel 1 800 992 4657 Tel 1 800 445 3988 Fax 1 888 246 5732 Fax 1 800 445 6643 Europe Africa Middle East India Tel 44 0 1202 571 111 Fax 44 0 1202 573 488 China Tel 8621 3373 0108 Fax 8621 3373 0308 Japan Tel 81 45 785 6421 Fax 81 45 785 6517 Australia Tel 61 0 2 8525 7555 Fax 61 0 2 8525 7575 Carlisle Fluid Technologies is a global ...

Reviews: