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INSTRUCTIONS-PARTS LIST
This manual contains important
warnings and information.
READ AND KEEP FOR REFERENCE.
INSTRUCTIONS
R
BULLDOG
HYDRA-CAT
PROPORTIONING PUMPS
2500 psi (17 MPa, 170 bar)
Maximum Working Pressure
MODELS WITH TWO DISPLACEMENT PUMPS
Model 209028, Series E
1:1 Mix Ratio
MODELS WITH THREE DISPLACEMENT PUMPS
Model 208958, Series E
1–1/4:1 Mix Ratio
Model 208999, Series E
1–1/2:1 Mix Ratio
Model 209000, Series E
2:1 Mix Ratio
Model 209001, Series E
3:1 Mix Ratio
Model 209002, Series E
4:1 Mix Ratio
Model 209003, Series E
2–1/2:1 Mix Ratio
RELIEF VALVE INSTALLATION KITS
Required for safe operation of the pump. Attaches to
wall mounting bracket or pump stand and connects
relief valves (which relieve fluid pressure if it exceeds
preset limit), to displacement pumps.
209005
Relief Valve Installation Kit
For two displacement pump models.
209006
Relief Valve Installation Kit
For three displacement pump models.
GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441
R
ECOPYRIGHT 1974, GRACO INC.
Graco Inc. is registered to I.S. EN ISO 9001
307132
First choice when
quality counts.t
A
A
B
A
Rev. M
B
A
TI0645
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Related Manuals for Graco BULLDOG HYDRA-CAT E Series
Summary of Contents for Graco BULLDOG HYDRA-CAT E Series
- Page 1 Relief Valve Installation Kit For two displacement pump models. TI0645 209006 Relief Valve Installation Kit For three displacement pump models. GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441 ECOPYRIGHT 1974, GRACO INC. Graco Inc. is registered to I.S. EN ISO 9001...
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Page 2: Table Of Contents
........The Graco Warranty and Disclaimers . -
Page 3: Warnings
Permanently coupled hoses cannot be repaired; replace the entire hose. D Use only Graco approved hoses. Do not remove any spring guard that is used to help protect the hose from rupture caused by kinks or bends near the couplings. - Page 4 D This equipment is for professional use only. D Read all instruction manuals, tags, and labels before operating the equipment. D Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco distributor. D Do not alter or modify this equipment. Use only genuine Graco parts and accessories.
- Page 5 The following two typical installations are only guidelines to setting up a complete Hydra- system. For assistance in designing a system to suit your particular needs, contact your Graco distributor. For pressure feed to proportioning pump, mount fluid pressure gauges at proportioning pump inlets to properly adjust feed pump pressures.
- Page 6 Installation For pressure feed to proportioning pump, mount fluid pressure gauges at proportioning pump inlets to properly adjust feed pump pressures. HEAVY VISCOSITY HEATED SYSTEM 10:1 RATIO MAXIMUM RATIO FEED PUMPS PART B PART A PART A PART B TI0646 Bleed-type master Fluid filter Static mixer...
- Page 7 250 psi max. air regulator (D) to control pump speed, and an air filter (E) to remove harmful dirt and moisture from the com- Review your feed systems with your Graco Distributor. pressed air supply. 307132...
- Page 8 Installation Assemble installation kit as shown in Fig. 1 and 2. At- screws provided in installation kit. Connect fluid supply tach manifold to mounting bracket as shown, using hoses to 3/8 npt(m) fluid outlets of relief valves. 209005 Relief Valve Kit 209006 Relief Valve Kit 3/8 npt(m) 3/8 npt(m)
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Page 9: Installation
Installation Grounding 4. Spray gun or dispensing valve: Obtain grounding through connection to a properly grounded fluid hose and pump. WARNING 5. Fluid supply container: according to your local FIRE AND EXPLOSION HAZARD code. Static electricity is created by the high velocity flow of fluid through the pump and hose. -
Page 10: Operation
Operation Pressure Relief Procedure WARNING WARNING Some of the chemicals used with propor- tioning equipment are hazardous to han- INJECTION HAZARD dle. Be sure you are completely familiar The system pressure must be manually with the fluids you are using. Read and relieved to prevent the system from follow the fluid manufacturer‘s instruc- starting or spraying accidentally. - Page 11 Keep the displacement pumps’ throat packing nuts to the pump, and let the pump prime and stall against filled with Graco Throat Seal Liquid (TSL) to help pre- pressure. Open the mixer solvent valve briefly to be vent fluid from drying on the displacement rod and sure the solvent will be supplied when it is needed.
- Page 12 Operation Using Your Proportioning Pump System Reconnect the fluid dispensing hose to the mixer. Make sure the gun/dispensing valve is not triggered. When the system is primed and operating, check the Open the air valve to the mixer air motor. Open the fluid outlet pressure gauges.
- Page 13 Operation Care of the Pump Keep the throat packing nuts filled with TSL, and check the tightness of the packing nut weekly. The packing nut should be tight enough to prevent leakage; no Never allow the fluid supply containers to run dry of the tighter.
- Page 14 1/16 in. ID, 12 in. (13 mm) long steel tube, coupled to the fluid supply hoses. A needle-type flow MOVE HOSES AT THE SAME TIME control valve could also be used. Contact your Graco distributor for assistance in selecting the proper type of FLUID flow restrictor for your application.
- Page 15 Operation Changing the Mix Ratio on the Three Dis- 2. Unscrew the three unions (9) from the intakes of placement Pump Models the displacement pumps and remove the manifold (20). WARNING 3. Remove the two retaining nuts (6) from the two outer pumps’...
- Page 16 Operation Proportioning Pump Chart CAUTION Displacement pump combinations for mix ratio, pres- With three displacement pump models, the outer two sure ratio and volume per cycle for each model. displacement pumps must be identical models to balance forces and avoid damaging the pumps. Part A Part B Part A...
- Page 17 Notes 307132...
- Page 18 Troubleshooting Chart WARNING WARNING To reduce the risk of serious injury, al- Never operate the pump with the air mo- ways follow the Pressure Relief Proce- tor shield removed, to reduce the risk of dure on page 10 whenever you shut off, serious injury, including amputation, from check or service any part of the system, install or moving parts inside the air motor housing.
- Page 19 Troubleshooting Chart Pump operates but Part B output Dirty, worn or damaged part B pump Clean, service – see instruction pressure drops during upstroke.* piston valve. manual 307944. Worn or damaged part B pump piston Replace. packings. Pump operates but part B output pres- Dirty, worn or damaged part B pump Clean, service –...
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Page 20: Service
Service Displacement Pump Service WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Reference Pressure Relief Procedure on page 10. Only Thoroughly flush the pump with a solvent which is compatible to the fluid being pumped, then relieve the pressure. - Page 21 Service Reassembly (See Fig. 6) 3. Move the air motor to the bottom of its stroke. Check the play of the air motor yoke at each dis- 1. Three Displacement Pump Models Only placement rod. With the displacement rods cen- Slide the center pump’s displacement rod (E) tered, tighten the locknuts (6) securely.
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Page 22: Accessories
Accessories Wall Mounting Bracket 206221 Throat Seal Liquid For wall mounting the BulldogR pump Non-evaporating solvent for wet-cup 206994 8 oz (0.2 liter) Universal Frame 207872 206995 1 qt (0.9 liter) For stationary mounting the BulldogR pump 206996 1 gal (3.8 liter) Wheel Kit 208362 Air Regulator 205712... - Page 23 Notes 307132...
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Page 24: Dimensions
Dimensions Mounting Hole Layout 88 lb (40 kg): two displacement pump model 97 lb (44 kg): three displacement pump model 3/4 npt(f) air inlet 9 in. 229 mm diameter 0.44 in. 11.2 mm diameter (4) holes 10.5 in. 267 mm diameter bolt circle 05235 Wall Mounting Brackets... -
Page 25: Technical Data
Technical Data Air Operating Range ....40–100 psi (0.3–0.7 MPa, 3–7 bar)* Air Consumption ... . . See example below Relief valves: See instruction manual 308547. -
Page 26: Graco Phone Number
Graco distributor to the original purchaser for use. With the exception of any special extended or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.