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Startup (Electric Models) 

20

3A4102C

7.

Increase pressure enough to start 

hydraulic motor stroking and allow fluid 

to circulate for 15 seconds; turn pressure 

down, turn prime valve horizontal.

8.

Take spray gun trigger safety OFF.

9.

Hold gun against grounded metal 

flushing pail. Trigger gun and increase 

fluid pressure slowly until pump runs 

smoothly.

10. Inspect fittings for leaks. If leaks occur, 

turn sprayer OFF immediately. Perform 

Pressure Relief Procedure

,  page 15

Tighten leaky fittings. Repeat 

Startup

 

procedure steps 2-8. If no leaks, 

continue to trigger gun until system is 

thoroughly flushed.

11. Place displacement pump in paint pail.

12. Trigger gun again into flushing fluid pail 

until paint appears.

13. Assemble Tip and Guard, page 21.

15 
SEC

WLE

ti29213a

FLUSH

WLD

High-pressure spray is able to inject toxins 

into the body and cause serious bodily 

injury. Do not stop leaks with hand or rag.

ti9695a

ti18248a

Summary of Contents for HSS9950

Page 1: ...lication of architectural paints and coatings 3300 psi 22 7 MPa 227 bar Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual and in related manuals...

Page 2: ...ly 21 Spray 21 Clear Tip Clogs 22 Clean Up 23 Maintenance 25 Troubleshooting 26 Standard Series Pump 28 Removal 28 Installation 29 HSS9950 Frame and Belt Guard Parts 30 HSS9950 Electric Motor Parts 32...

Page 3: ...of electric shock When repair or replacement of the cord or plug is required do not connect the grounding wire to either flat blade terminal The wire with insulation having an outer surface that is g...

Page 4: ...liquids in a confined area Keep spray area well ventilated Keep a good supply of fresh air moving through the area Sprayer generates sparks Keep pump assembly in a well ventilated area at least 20 fe...

Page 5: ...r cords or turn power or light switches on or off when flammable fumes are present Ground all equipment in the work area See Grounding instructions Use only grounded hoses Hold gun firmly to side of g...

Page 6: ...f Procedure for turning off the unit and relieving the pressure before removing the nozzle tip to clean Equipment maintains pressure after power is shut off Do not leave the equipment energized or und...

Page 7: ...approvals and create safety hazards Make sure all equipment is rated and approved for the environment in which you are using it PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible w...

Page 8: ...of it according to applicable guidelines RECOIL HAZARD Gun may recoil when triggered If you are not standing securely you could fall and be seriously injured PERSONAL PROTECTIVE EQUIPMENT Wear approp...

Page 9: ...e Gauge 2 Pressure Control 3 Hydraulic Pump Valve 4 Threaded Pump Connection 5 Displacement Pump 6 Inlet Strainer 7 Engine On Off Switch 8 Engine Controls 9 Electric Motor On Off Switch 10 Gun Trigger...

Page 10: ...it the outlet have the proper outlet installed by a qualified electrician Power Requirements 230V units require 230 VAC 50 60 Hz 16A 1 phase Extension Cords Use an extension cord with an undamaged gro...

Page 11: ...al pail connect a ground wire to the pail Clamp one end to the pail and the other end to a true earth ground such as a water pipe To maintain ground continuity when sprayer is flushed or pressure is r...

Page 12: ...uard knob and motor clamp Perform Pressure Relief Procedure page 15 2 Lift belt guard Remove belt Tilt engine motor and remove engine motor 3 Tilt engine motor Install engine motor Install belt Lower...

Page 13: ...Install hose to spray gun and tighten securely 3 Engage gun trigger lock 4 Remove Tip Guard 5 Screw inlet strainer to bottom of suction hose and hand tighten securely 6 When spraying texture remove i...

Page 14: ...k engine oil level 9 Fill fuel tank 10 Check hydraulic oil level Add only Hydraulic Oil ISO Grade 46 169236 5 gallon 18 9 liter or 207428 1 gallon 3 8 liter Hydraulic tank capacity is 1 25 gallon 4 75...

Page 15: ...pressure 5 Engage gun trigger lock 6 Turn prime valve down to DRAIN posi tion Leave prime valve down until ready to spray again 7 If you suspect the spray tip or hose is clogged or that pressure has n...

Page 16: ...shing fluid Attach ground wire to pail and to earth ground 2 Turn prime valve down to DRAIN position Turn pressure control counterclockwise to lowest pressure 3 Set hydraulic pump valve OFF 4 Start ga...

Page 17: ...d setting 5 Set hydraulic pump valve ON hydraulic motor is now active 6 Increase pressure enough to start hydraulic motor stroking and allow fluid to circulate for 15 seconds turn pressure down turn p...

Page 18: ...ayer OFF immediately Perform Pressure Relief Procedure page 15 Tighten leaky fittings Repeat Startup procedure steps 2 8 If no leaks continue to trigger gun until system is thoroughly flushed 10 Place...

Page 19: ...with flushing fluid Attach ground wire to pail and to earth ground 2 Turn prime valve down Turn pressure control counterclockwise to lowest pressure 3 Set hydraulic pump valve OFF 4 Plug cord into ou...

Page 20: ...t fittings for leaks If leaks occur turn sprayer OFF immediately Perform Pressure Relief Procedure page 15 Tighten leaky fittings Repeat Startup procedure steps 2 8 If no leaks continue to trigger gun...

Page 21: ...ip and face forward 4 Screw assembly onto gun Tighten Spray 1 Spray test pattern Increase pressure to eliminate heavy edges Use smaller tip size if pressure adjustment can not eliminate heavy edges 2...

Page 22: ...ar Tip Clogs 1 Release trigger engage trigger lock Rotate tip Disengage trigger lock Trigger gun to clear clog 2 Engage trigger lock Return tip to original position Disengage trigger lock and continue...

Page 23: ...for water based paint and mineral spirits for oil based paint 4 Turn motor switch ON or turn engine ON and start engine Turn hydraulic pump valve ON Turn prime valve forward to SPRAY position 5 Hold g...

Page 24: ...ayer for 15 to 30 seconds to drain fluid Turn hydraulic valve OFF Turn engine OFF or turn electric motor OFF and unplug 9 Engage trigger lock Remove filters from gun and sprayer if installed Clean and...

Page 25: ...ade WEEKLY Remove engine air filter cover and clean element Replace element if necessary If operating in an unusually dusty environment check filter daily and replace if necessary Replacement elements...

Page 26: ...r Add fluid Belt worn or broken or off Replace Hydraulic pump worn or damaged Bring sprayer to distributor for repair Dried paint seized paint pump rod Service pump See pump manual Hydraulic motor not...

Page 27: ...r repair Large pressure drop in fluid hose Reduce length or increase diameter The sprayer overheats Paint buildup on hydraulic components Clean Oil level is low Fill with oil Spitting from gun Fluid s...

Page 28: ...Series Pump Removal See pump manual 334654 for pump repair 1 Flush pump 2 Perform Pressure Relief Procedure page 15 3 Remove strainer and paint hose 4 Push retaining ring up push out pin 5 Loosen jam...

Page 29: ...ope until pump rod pin hole is aligned with hydraulic rod hole Push pin into hole Push retaining ring into groove 3 Fill packing nut with Packing Seal Fluid NOTICE If pump jam nut loosens during opera...

Page 30: ...9950 Frame and Belt Guard Parts Ref Torque Ref Torque 120 130 in lb 13 6 14 7 N m Inflate tires to 25 35 psi 1 7 2 4 bar 1 2 ti25332a 112 19 35 81 75 132 116 91 70 39 69 54 50 49 186 115 55 170 27 48...

Page 31: ...75 15J645 WASHER 2 79 189246 LABEL warning 1 17D947 LABEL warning multi languages 1 81 192027 SLEEVE cart 2 91 194317 LABEL warning 1 16N948 LABEL warning ISO 1 17D947 LABEL warning multi languages 1...

Page 32: ...Y 1 44 116914 BELT V Grip notch not shown 1 88 15K616 LABEL caution 1 99 15E585 BRACKET mounting elec motor 1 119 248946 KIT 3 0 hp includes all parts listed on this page 1 119a 15E669 MOTOR electric...

Page 33: ...hd 1 34 112717 WASHER 1 43 116908 PULLEY 5 50 in 1 44 119433 BELT V Grip notch not shown 1 50 110838 NUT lock 4 88 194126 LABEL warning 1 90 16Y720 LABEL warning ISO engine 1 99 15F157 BRACKET mounti...

Page 34: ...ply Loctite 242 Apply Loctite 277 90 110 in lb 10 2 12 4 N m 110 120 in lb 12 4 13 6 N m 355 395 in lb 40 1 44 6 N m 1 5 2 6 3 7 4 ti18346b 236 265 233 237 234 235 242 243 247 238 239 240 248 244 245...

Page 35: ...1 240 116967 SPRING compression 1 241 237686 WIRE ground assembly w clamp 1 242 249003 PUMP hydraulic 1 243 110792 FITTING elbow male 90 1 244 15B438 KNOB pressure 1 245 117560 SCREW set socket head 1...

Page 36: ...f Torque 145 155 ft lb 196 6 210 2 N m 140 160 in lb 15 8 18 1 N m 12 18 ft lb 16 3 24 4 N m 70 80 ft lb 94 9 108 5 N m 1 3 2 4 288 290 116 ref 288 268 269 270 271 281 278 279 289 290c 290b 290a 291 2...

Page 37: ...LD adapter 1 268 117739 WIPER rod 1 269 112342 BEARING rod 1 270 112561 PACKING block 1 271 112561 PACKING o ring 1 278 108014 PACKING o ring 1 279 178226 SEAL piston 1 281 178207 BEARING piston 1 288...

Page 38: ...ded nylon blue 1 2 in ID cpld 1 2 npsm f 3300 psi 227 bar 50 ft 15 m spring guard both ends 1 202b 191239 HOSE grounded nylon blue 3 8 in ID cpld 3 8 npsm f 11 ft 10 in 3 6 m spring guards both ends 3...

Page 39: ...m tip size 0 039 Maximum free flow delivery 1 56 gpm 5 9 l min Hose connection 3 8 npsm f NA AP 1 2 npsm f EMEA Cycles per gallon 80 21 1 Sound Levels Measured at maximum normal load conditions Motor...

Page 40: ...900 RPM 205 cc 4 8 KW 3900 RPM Maximum tip size 0 053 Maximum free flow delivery 2 35 gpm 8 9 l min Hose connection 3 8 npsm f NA AP 1 2 npsm f EMEA Noise dBa Maximum sound pressure per ISO 3744 88 dB...

Page 41: ...Notes 3A4102C 41 Notes...

Page 42: ...Notes 42 3A4102C Notes...

Page 43: ...clude the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRA...

Page 44: ...lication Airlessco reserves the right to make changes at any time without notice Original Instructions This manual contains English MM 3A4102 GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 554...

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