Page 2 - Contents; Warning
Contents 2 309523D Contents Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2 Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 System Requirements . . . . . . . . . . . . . . . . . . . . . . . 4 Grounding . . . . . . . . . . . . . . . . . . . . . . ....
Page 4 - System Requirements
System Requirements 4 309523D System Requirements • Install a bleed-type master air valve on a pneumatic pump air supply line to relieve air trapped between this valve and the pump after air regulator is shut off. Trapped air can cause the pump to cycle unexpect-edly. • Install a fluid drain valve b...
Page 5 - Grounding; Gun Trigger Safety
Grounding 309523D 5 Grounding Check your local electrical code and pump/sprayer man-ual for detailed grounding instructions. • Spray gun: ground through connection to a grounded fluid hose and pump/sprayer. • Fluid hose: use only grounded hoses. • Fluid supply container: follow local code. • Object ...
Page 7 - Operating Gun
Operating Gun 309523D 7 Operating Gun 7. Trigger gun full-open or full-close. Hold gun at right angles to work surface. Do not swing gun in an arc. Practice to find the best length and speed of stroke. Strain the fluid if it contains particles that could clog fluid tip. 1. Connect a grounded fluid h...
Page 8 - Spray Pattern Size
Operating Gun 8 309523D Adjusting Spray Pattern Spray Pattern Size The spray tip orifice and spray angle determine pattern coverage and size. When you need more coverage, use a larger spray tip rather than increasing fluid pressure. Spray Pattern Direction 1. Follow Pressure Relief Procedure , page ...
Page 9 - Maintenance; Cleaning Spray Tip and Tip Guard
Maintenance 309523D 9 Maintenance Cleaning Spray Tip and Tip Guard 2. Clean spray tip with a solvent-soaked brush. • Clean front of tip frequently to reduce fluid buildup. • Clean tip and tip guard at end of each work day. WARNING Read warnings, page 3. CAUTION • To avoid ruining packings, do not so...
Page 10 - If RAC Spray Tip Clogs
Maintenance 10 309523D If RAC Spray Tip Clogs 1. If spray tip clogs while spraying, stop spraying immediately. 8. If tip is still clogged: WARNING Read warnings, page 3. 2. Engage trigger lock. 3. Rotate RAC tip handle back 180° (arrow points back). 4. Disengage trigger lock. 5. To remove clog, trig...
Page 11 - Flushing
Flushing 309523D 11 Flushing Flush pump and gun before fluid can dry in it. If avail-able, use flushing procedure provided in your pump or sprayer manual instead of this procedure. 6. Trigger gun into solvent pail. Circulate fluid until system is thoroughly flushed. WARNING Read warnings, page 3. 1....
Page 12 - Repair; Disassembly
Repair 12 309523D Repair Disassembly 1. Follow Pressure Relief Procedure , page 6. Engage trigger lock. 8. Clean and replace par ts as needed. Repair Kit 245876 is available. Par ts included with the kit are marked with *. 2. Disconnect fluid hose. Remove tip and tip guard (17). 3. Using a wrench, r...
Page 13 - If you need to remove trigger; Assembly
Repair 309523D 13 If you need to remove trigger 1. Using a wrench, remove lock nut (13) from trigger stud (14). 2. Slide trigger stud (14) out of gun body, and remove trigger (5). Assembly - continued - To avoid losing parts, be ready for two actuator pins (6) to fall out of gun body (1) when trigge...
Page 14 - Test gun before using
Repair 14 309523D Test gun before using 4. Release trigger; the gun should immediately stop spraying and there should not be any leaks. If there is a problem, follow Pressure Relief Pro- cedure on page 6, engage trigger lock, and dis- connect fluid hose. Check through Assembly procedure and correct ...
Page 16 - Parts
Parts 16 309523D Parts Part No. 233889, Series A Heavy Duty RAC tip guard, 519 SwitchTip ™ Part No. 234032, Series A Standard (nonreversing) Dripless ™ tip guard, 519 flat tip 17a† T12174B 2* 12* 3* 6 14 1 11* 4* 8 9 10 19 15 16 5 13 18a ★ 17b† 17c† 18b ★ 18c† 18d† 17 25 18 26
Page 18 - Accessories
Parts 18 309523D Accessories Part No. 245878: 2-Finger Trigger Kit Part No. 236987: Inlet Swivel 1/4 npsm Part No. 246291: Gun Filter Swivel 1/4 npsm (not shown) Part No. 194744: Packing Repair Tool Included in Repair Kit 245876 Front Extension: 7/8-14 UNF-2B with RAC 5 tip guard and tip Part No. 24...
Page 19 - Technical Data
Technical Data 309523D 19 Technical Data *Results are maximum readings taken at 6000 psi (41 MPa, 414 bar), with HD427 tip, using water. Sound power level was tested to ISO 3744-1981. Dimensions Maximum Working Pressure . . . . . . . . . . . . . . . . . . . . . . . 7250 psi (50 MPa, 500 bar) Fluid O...
Page 20 - Graco Standard Warranty; Graco Phone Numbers
All written and visual data contained in this document reflects the latest product information available at the time of publication. Graco reserves the right to make changes at any time without notice. Sales Offices: Minneapolis, Detroit International Offices: Belgium, Korea, Hong Kong, Japan GRACO ...