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13

308106

Service

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow the

Pressure Relief Procedure

on page 9.

DISCONNECTING THE DISPLACEMENT
PUMP

1. Flush the pump if possible. Stop the pump at the

bottom of its stroke.

Relieve the pressure.

2. Disconnect the air and fluid hoses. Remove the

pump from its mounting. Note the relative position

of the pump’s fluid outlet to the air motor’s air inlet.

3. Unscrew the tie rod locknuts (106) from the tie

rods (110). Remove the cotter pin (105). Unscrew

the displacement rod (19) from the air motor (101).

Carefully pull the displacement pump (102) off the

air motor (101). See Fig 3.

4. Refer to page 14 for displacement pump service.

To service the air motor, refer to the separate air

motor manual (306982 or 307043), supplied.

RECONNECTING THE DISPLACEMENT
PUMP

1. Screw the displacement rod (19) into the base of

the air motor (101). Install the cotter pin (105).

Orient the pump’s fluid outlet to the air motor’s air

inlet as was noted in step 2 under

Disconnecting

the Displacement Pump.

See Fig 3.

2. Position the displacement pump (102) on the tie

rods (110). Screw the locknuts (106) onto the tie

rods (110) loosely.

3. Mount the pump and reconnect all hoses. Recon-

nect the ground wire if it was disconnected during

repair. Torque the packing nut/wet--cup (4) to

18--20 ft--lb (24--27 N.m). Fill the wet--cup with

Graco Throat Seal Liquid or compatible solvent.

4. Tighten the tie rod locknuts (106) evenly, and

torque to 25--30 ft--lb (34--41 N.m).

5. Start the pump and run it at about 40 psi (280 kPa,

2.8 bar) air pressure, to check that it is operating

properly.

1

3

2

107

4

110

105

102

101

19

106

MODEL

223843

SHOWN

Torque President to 25--30 ft-lb (34--41 N.m);

Monark to 15--20 ft-lb (20--27 N.m)

Torque to 18--20 ft-lb (24--27 N.m)

1

2

Torque to 25--30 ft-lb (34--41 N.m)

3

Fig. 3

Summary of Contents for 223843

Page 1: ...instructions See page 2 for Table of Contents Part No 223843 Series A 30 1 Ratio Presidentr Pump 3600 psi 25 0 MPa 250 bar Maximum Fluid Working Pressure 120 psi 0 8 MPa 8 bar Maximum Air Input Pressu...

Page 2: ...o Standard Warranty 24 Graco Information 24 Symbols Warning Symbol WARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions Caution Symbol CAU...

Page 3: ...Do not use hoses to pull equipment D Route hoses away from traffic areas sharp edges moving parts and hot surfaces Do not expose Graco hoses to temperatures above 82_C 180_F or below 40_C 40_F D Wear...

Page 4: ...ment D Check the hoses tubes and couplings daily Replace worn damaged or loose parts immediately Permanently coupled hoses cannot be repaired replace the entire hose D Use only Graco approved hoses Do...

Page 5: ...5 308106 Notes...

Page 6: ...ombined hose length to ensure grounding continuity 3 Air compressor follow manufacturer s recommen dations 4 Spray gun grounding is obtained through connec tion to a properly grounded fluid hose and p...

Page 7: ...required for pump E Pump Air Regulator F Air Line Filter G Bleed Type Master Air Valve for accessories H Air Supply Hose J Fluid Drain Valve required K Fluid Filter L Fluid Supply Hose M Spray Gun N F...

Page 8: ...t f fluid outlet Use of a short whip hose between the main fluid hose L and the gun M allows freer gun movement Connect a fluid suction hose N to the pump s 3 4 npt m fluid intake Use a grounded 1 2 i...

Page 9: ...Close the bleed type master air valve required in your system 4 Unlock the spray gun trigger safety 5 Hold a metal part of the gun firmly to the side of a grounded metal pail and trigger the gun to re...

Page 10: ...Pressure Relief Procedure on page 9 Relieve the pressure then install the spray tip in the gun With the pump and lines primed and with adequate air pressure and volume supplied the pump will start and...

Page 11: ...n page 9 Shutdown and Care of the Pump For overnight shutdown relieve the pressure Always stop the pump at the bottom of the stroke to prevent the fluid from drying on the exposed displacement rod and...

Page 12: ...trokes Insufficient air pressure closed or clogged air valves etc Open clean Exhausted fluid supply Refill purge all air from pump and fluid lines Clogged fluid line valve etc Clear Packing nut 4 too...

Page 13: ...ECONNECTING THE DISPLACEMENT PUMP 1 Screw the displacement rod 19 into the base of the air motor 101 Install the cotter pin 105 Orient the pump s fluid outlet to the air motor s air inlet as was noted...

Page 14: ...nger over the surface or hold the part up to the light at an angle Be sure the ball seats of the piston 2 and intake valve housing 1 are not chipped or nicked Replace any worn or damaged parts NOTE If...

Page 15: ...1 3 4 2 Torque to 18 20 ft lb 24 27 N m 1 Torque to 25 30 ft lb 34 41 N m 2 Torque President to 25 30 ft lb 34 41 N m Monark to 15 20 ft lb 20 27 N m 3 Torque to 65 75 ft lb 88 102 NSm 4 5 6 Lips of...

Page 16: ...pages 18 and 19 for parts 1 105 101946 PIN cotter stainless steel 0 12 3 2 mm x 1 5 3 8 mm 1 106 101566 NUT lock 3 8 16 3 107 156082 SEAL o ring nitrile rubber 1 110 168221 ROD tie carbon steel 4 5 11...

Page 17: ...es 18 and 19 for parts 1 105 101946 PIN cotter stainless steel 0 12 3 2 mm x 1 5 3 8 mm 1 106 101566 NUT lock 3 8 16 3 107 156082 SEAL o ring nitrile rubber 1 110 164722 ROD tie carbon steel 4 375 112...

Page 18: ...18 308106 Parts Model 223842 Series B Severe Duty Stainless Steel Displacement Pump Includes items 1 22 13 4 18 8 17 3 9 10 12 17 13 8 18 14 6 2 19 16 22 15 7 1...

Page 19: ...GASKET flat PTFE 1 10 24C500 SLEEVE housing stainless steel 1 12 186184 RETAINER packing stainless steel 1 13 164862 V PACKING PTFE 6 REF PART NO NO DESCRIPTION QTY 14 186179 PIN ball stop stainless...

Page 20: ...red flow along bottom of chart 2 Follow vertical line up to intersection with selected fluid outlet pressure curve black Follow left to scale to read fluid outlet pressure To find Pump Air Consumption...

Page 21: ...Locate desired flow along bottom of chart 2 Follow vertical line up to intersection with selected fluid outlet pressure curve black Follow left to scale to read fluid outlet pressure To find Pump Air...

Page 22: ...B C Model 223843 30 in 14 8 in 15 2 in 762 mm 376 mm 386 mm 223844 28 4 in 13 3 in 15 1 in 722 mm 338 mm 384 mm 1 2 npt f AIR INLET 3 8 npt f FLUID OUTLET 0 28 7 1 mm DIA 5 0 127 mm 2 5 64 mm 4 38 11...

Page 23: ...23 308106 Notes...

Page 24: ...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 for breach of warranty must be...

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