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307132

21

Service

Reassembly 

(See Fig. 6)

1.

Three Displacement Pump Models Only

Slide the center pump’s displacement rod (E)
through the retaining plate (12), retaining ring (15),
and washer (14). Thread the displacement rod (E)
into the yoke (13) by turning the complete cylinder.
Use the wrench on the flats of the displacement
rod for final tightening. Push the cylinder up into
place in the retaining and install the retaining ring.

2.

Insert the two outer displacement rods (E) through
the retaining plate (12), retaining rings (15), and
washers (14). Thread the displacement rods into
the yoke (13) by turning the complete cylinder.
Install the locknuts (6) loosely on the displacement
rods. Push the cylinders up into place in the retain-
ing rings.

3.

Move the air motor to the bottom of its stroke.
Check the play of the air motor yoke at each dis-
placement rod. With the displacement rods cen-
tered, tighten the locknuts (6) securely.

4.

After mounting the displacement pumps to the air
motor yoke, use a 3/8 in. hex key wrench to tight-
en the piston studs securely. Tighten the throat
packing nut just enough to prevent leakage, no
tighter.

5.

Install the intake valve housing in the cylinder and
torque it to 30–35 ft-lb (41–46 N

m).

Содержание BULLDOG HYDRA-CAT 208958

Страница 1: ...l 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 operati...

Страница 2: ...tatic sparking or you feel an electric shock while using this equipment stop spray ing immediately Do not use the equipment until you identify and correct the problem Provide fresh air ventilation to...

Страница 3: ...the equipment Check the hoses tubes and couplings daily Replace worn damaged or loose parts immediately Permanently coupled hoses cannot be repaired replace the entire hose Use only Graco approved ho...

Страница 4: ...uid pressures to be achieved A 475 to 575 psi working pressure range relief valve is provided on the secondary side to limit the fluid pressure Do not tamper with this pressure relief valve or serious...

Страница 5: ...25 For pressure feed to proportioning pump mount fluid pressure gauges at proportioning pump inlets to properly adjust feed pump pressures 1 1 D A C N E A B A D A M F P F J G G C B H PART A PART B LIG...

Страница 6: ...pressures 1 KEY A Bleed type master air valve B Pump runaway valve C Air line lubricator D Air regulator E Air line filter F Fluid filter G Fluid drain valve H Feed pump J Proportioning pump K Solvent...

Страница 7: ...m pressed air supply Install a fluid drain valve G at each fluid outlet to re lieve pressure in the system Be sure the valve is pointed downward WARNING INJECTION HAZARD Two accessories the bleed type...

Страница 8: ...pt m fluid outlets of relief valves Fig 1 05227 3 8 npt m Part A Fluid Outlet 3 4 npt m Part A Fluid Inlet 3 8 npt m Part B Fluid Outlet 3 4 npt m Part B Fluid Inlet Part A Part B D A G C B G 209005 R...

Страница 9: ...nding Wire and Clamp P N 237569 25 feet 7 6 m long 12 ga 2 Air and fluid hoses Use only electrically conduc tive hoses with a maximum of 500 feet 150 m combined hose length to ensure grounding conti n...

Страница 10: ...gh pressure can be injected through the skin and cause serious injury To reduce the risk of an injury from injection splashing fluid or moving parts follow the Pressure Relief Procedure whenever you a...

Страница 11: ...o use When clean solvent is coming out of the gun dispensing valve re move the solvent supply from the feed pumps intakes Slowly run the pump to push all the solvent out of the lines then stop the pum...

Страница 12: ...n the eyes or on the skin and property dam age never exceed the maximum air and fluid work ing pressure of the lowest rated component in your system See page 10 Reconnect the fluid dispensing hose to...

Страница 13: ...king nut should be tight enough to prevent leakage no tighter Too tight an adjustment will cause the packings to bind or wear prematurely and leak Relieve the pres sure before adjusting the packing nu...

Страница 14: ...or for assistance in selecting the proper type of flow restrictor for your application 1 Disconnect the fluid hoses from the mixer inlet valves taking note of which hose was connected to which valve T...

Страница 15: ...s 9 from the intakes of the displacement pumps and remove the manifold 20 3 Remove the two retaining nuts 6 from the two outer pumps displacement rods E Screw the fluid pump retaining rings 15 off the...

Страница 16: ...5 222012 24 1 0 064 0 24 2400 16 8 168 100 0 7 7 3 1 222012 222017 222012 25 1 0 061 0 23 2500 17 170 100 0 7 7 4 1 222012 222019 222012 27 1 0 057 0 22 2500 17 170 93 0 6 6 4 Exceeds the pressure rat...

Страница 17: ...307132 17 Notes...

Страница 18: ...n manual 307049 Displacement pump seized Service lower pump see instruction manual 307944 System speeds up or runs erratically Fluid containers are empty Check often keep filled Air in fluid lines Pur...

Страница 19: ...nder on upstroke diving on top of change over Increase pressure on feed pump Check inlet filter screen Check foot valve Pump operates but part B output pres sure drops during both strokes Dirty worn o...

Страница 20: ...t pumps and remove the manifold 20 3 Remove the two locknuts 6 from the two outer pumps displacement rods E Screw the fluid pump retaining rings 15 off the fluid pumps use a screwdriver and hammer to...

Страница 21: ...ining rings 15 and washers 14 Thread the displacement rods into the yoke 13 by turning the complete cylinder Install the locknuts 6 loosely on the displacement rods Push the cylinders up into place in...

Страница 22: ...4 in 101 6 mm 3 16 in 5 mm dia bolt circles 3 holes 6 9 in 175 3 mm 6 9 in 175 3 mm Throat Seal Liquid Non evaporating solvent for wet cup 206994 8 oz 0 2 liter 206995 1 qt 0 9 liter 206996 1 gal 3 8...

Страница 23: ...307132 23 Notes...

Страница 24: ...t f fluid outlets 3 4 npt fluid inlets 3 4 npt f air inlet 45 in 1143 mm 23 in 584 mm Mounting Hole Layout 05235 9 in 229 mm diameter 0 44 in 11 2 mm diameter 4 holes 10 5 in 267 mm diameter bolt circ...

Страница 25: ...d parts Stainless Steel Tungsten Carbide Chrome Plating Carbon Steel Ultra High Molecular Weight Polyethylene NEVER exceed 2500 psi 17 MPa 170 bar fluid pressure Air Consumable Example When the air pr...

Страница 26: ...including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any action f...

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