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308715

27 

Pressure Transducer

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the 

Pressure Relief

Procedure

 on page 9.

NOTE: 

See Fig. 26 for this procedure.

1. Remove the displacement pump. See page 21.
2. Use a pull–twist motion to remove the transducer

(29) from the pump manifold (101).

3. Clean paint residue from the hole in the manifold;

do not scratch the surface of the hole.

4. Lightly apply oil to the o-ring of the new transducer.
5. Install the transducer in the pump manifold, while

guiding the o-ring and backup ring into place.

6. Align the holes in the transducer as shown by the

arrows in Fig. 26.

7. Install the displacement pump. See page 21.

Fig. 26

02817A

101

29

Suction Hose

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the 

Pressure Relief

Procedure

 on page 9.

1. Remove the drain hose (33) from the clip. Remove

the front cover (13).

2. Pull upward on the hose (32) while unscrewing it

from the inlet tube (38). The hose coupling (A)

threads will engage and the hose will separate

from the tube.

3. Replace the o–ring (27) if it is worn or damaged.

4. Lubricate the o–ring (27) and the inlet tube (38)

threads with light grease.

5. Align the suction hose coupling with the threads of

the inlet tube (38). Tighten the hose onto the tube at

least 4 turns to ensure that the threads have disen-

gaged and can function as a swivel joint.

CAUTION

Misalignment or cross-threading will damage the

parts and/or create shavings which can cause the

o–ring (27) to leak.

06978

33

32

36

38

27

13

A

Fig. 27

1

Lubricate

1

Note:

 Filter

not shown

Summary of Contents for 231-584 Series A

Page 1: ...del 231580 Series A Standard mount complete sprayer with hoses gun RAC IVr DripLesst Tip Guard and SwitchTipt Performance 495t Model 232654 Series A Standard mount complete sprayer with hoses gun RAC...

Page 2: ...on of equipment if you do not follow the instructions WARNING FIRE AND EXPLOSION HAZARD Improper grounding poor ventilation open flames or sparks can cause a hazardous condition and result in a fire o...

Page 3: ...ray tip clogs and before cleaning checking or servicing the equipment Tighten all fluid connections before operating the equipment Check the hoses tubes and couplings daily Replace worn or damaged par...

Page 4: ...s to temperatures above 82 C 180 F or below 40 C 40 F Do not lift pressurized equipment Comply with all applicable local state and national fire electrical and safety regulations Liquids can be inject...

Page 5: ...zes fluid to be sprayed through spray gun G 50 ft 15 m Main Hose 1 4 in ID grounded nylon hose with spring guards on both ends H RAC IV Tip Guard Reverse A Clean RAC tip guard reduces the risk of flui...

Page 6: ...t cup seal Fill the cup 1 3 full with Graco Throat Seal Liquid TSL supplied Install the wet cup seal 3 Plug in the sprayer Be sure the ON OFF switch 52 is OFF Plug the cord into a grounded outlet at l...

Page 7: ...Fig 4 1 2 Gun safety latch shown engaged 2 Gun safety latch shown disengaged 05964 1 How to use the pressure drain valve Use the pressure drain valve to relieve fluid pressure from the pump and to hel...

Page 8: ...ee Fig 7 Clean the front of the tip frequently during the day s operation First follow the Pressure Relief Procedure on page 9 Fig 7 Tip handle shown in spraying position Turn handle 180 trigger gun t...

Page 9: ...ved after following the steps above VERY SLOWLY loos en the tip guard retaining nut or hose end coupling to relieve pressure gradually then loosen completely Now clear the tip or hose obstruction Star...

Page 10: ...the gun safety latch 10 Install the spray tip and tip guard Install the spray tip If you are using the RAC IV tip guard refer to manual 308644 for installation instructions 11 Adjust the spray patter...

Page 11: ...urs of operation Remove the front cover Fill the bearing housing cavity A with SAE 10 non detergent oil See Fig 11 5 Flush the sprayer at the end of each work day and fill it with mineral spirits to h...

Page 12: ...lon 2 liters of compatible solvent into a grounded metal flushing pail Put the suction hose in the pail 4 Open the pressure drain valve See Fig 5 page 7 5 To save the paint still in the pump and hose...

Page 13: ...h spring retainer 3 Check for motor damage Remove drive hous ing assembly 11 See page 24 Try to rotate motor fan by hand 3 Replace motor 4 if fan won t turn See page 22 Electrical 1 Check electrical s...

Page 14: ...witch and connect volt meter between exposed terminal on switch and power cord s white wire Plug in sprayer and turn ON Meter should read 105 125VAC Turn off and unplug sprayer 10 Replace ON OFF switc...

Page 15: ...from transducer is normal 1 Periodically remove residue from its cyl inder port See page 27 No output motor runs and pump strokes 1 Check paint supply 1 Refill and reprime pump 2 Check for clogged int...

Page 16: ...all wires 2 Check for missing motor brush inspection plate gasket see page 17 bent terminal forks or other metal to metal contact points which could cause a short 2 Correct faulty conditions 3 Check...

Page 17: ...and If there are no shorts the motor will coast two or three revolutions before coming to a complete stop If the motor does not spin freely the armature is shorted and the motor must be re placed See...

Page 18: ...ore operating the sprayer WARNING HOT SURFACE HAZARD During operation the motor and drive housing become very hot and could burn your skin if touched Flammable materi als spilled on the hot bare motor...

Page 19: ...the spring clip See Fig 15 3 Slide off the brush lead terminal E off the blade connector Remove the old brush C See Fig 15 Fig 15 F G E D C B H 1 1 Motor lead do not disconnect 2 Minimum 0 5 12 5 mm...

Page 20: ...l speed d Inspect the brush and commutator contact area for excessive arcing Arcs should not trail or circle around the commutator surface WARNING MOVING PARTS HAZARD Do not touch the brushes leads sp...

Page 21: ...308190 for pump repair instructions Installing the pump See Fig 18 and 19 1 Mount the pump on the drive housing Tap it into the alignment pins with a soft hammer Tighten the screws 21 to 50 ft lb 68 N...

Page 22: ...ing screw 5 See Fig 20 Remove the three drive housing screws 5 Also see Fig 21 6 Remove the two motor screws 5 7 Tap the lower rear of the drive housing 11 with a plastic mallet to loosen the motor Pu...

Page 23: ...ews 56 and lower the junction box 59 3 Disconnect the power supply cord leads including the green wire to the grounding screw 49 4 Loosen the strain relief bushing 51 Remove the power supply cord 50 5...

Page 24: ...them fall between the gears which will damage the drive hous ing if not removed The balls which are heavily covered with grease usually stay in the gear recesses but could be dislodged If the balls ar...

Page 25: ...d Crankshaft Fig 24 1 Torque to 80 in lb 9 N m 3 2 Quantity of three Quantity of one Apply a total of 3 fl oz 29 cc of grease to gears 4 56 5 15 13 64 11 5 12a 12 12b 59 11a 4a A 34 31 REF A 16 47 Not...

Page 26: ...ip the pressure control 64 forward and up to detach it from the drive housing 11 4 Guide the harness A through the motor and drive housing and remove the pressure control 5 Guide the harness of the ne...

Page 27: ...17A 101 29 Suction Hose WARNING INJECTION HAZARD To reduce the risk of serious injury whenever you are instructed to relieve pressure follow the Pressure Relief Procedure on page 9 1 Remove the drain...

Page 28: ...ball or seat area 2 If replacing the gasket 42a or seat 42b pry out the gasket NOTE Whenever the gasket 42a is removed re place it with a new one 3 Coat the o ring 42d with grease Press the stem into...

Page 29: ...ademarks of the DuPont Company French 185956 Spanish 185961 German 186041 Greek 186045 Korean 186049 English 185953 DANGER LABELS The English language DANGER label shown on page 1 is also on your spra...

Page 30: ...3 20 4a 12 18 15 16 45 37 29 32 25 12b 12a 64 30 5 5 17 31 34 21 38 36 46 4 39 28 56 43 42 4e 44 REF 32 REF 33 11 23 63 HOSE AND GUN NOT SHOWN IN PROPORTION TO SPRAYER 67 74 11b 14 4g INSIDE LABEL 4f...

Page 31: ...1 34 111705 SCREW filh 8 32 x 2 1 2 in 3 36 111612 TUBE adapter 1 37 LEG sprayer 187628 Model 231580 1 187895 Model 232654 1 38 192167 TUBE inlet 1 39 235004 STRAINER 1 42 235014 DRAIN VALVE KIT 1 In...

Page 32: ...0 4a 12 18 15 16 45 37 29 32 12b 12a 64 30 5 19 6 17 31 34 21 36 46 4 39 28 56 43 42 42a 42b 4e 44 11 63 67 74 42c 42d 11b 14 4g INSIDE LABEL 35 OUT SIDE LABEL 4f 24 1 1 1 89 50 13 66 11a 10 28 85 3 6...

Page 33: ...OR tube 1 37 101242 RING retaining wheel 2 39 183770 STRAINER 1 42 235014 DRAIN VALVE KIT 1 Includes items 42a to 42e 42a 111699 GASKET valve seat 1 42b 187615 SEAT drain valve 1 42c 224968 STEM drain...

Page 34: ...ade at a reasonable charge which charges may include the costs of parts labor and transportation Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above...

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