Graco 17R936 User manual

3A5024B

Repair

Kits for HVLP Sprayers

For repair of components in HVLP sprayers.

Important Safety Instructions

Read all warnings and instructions in your sprayer and gun manuals.

Be familiar with the controls and the proper usage of the equipment.

Save these instructions.

Related Manuals:

3A4967 FinishPro HVLP Sprayer

3A4980 HVLP Edge II/Edge II Plus Gun

Section Description Kit #

Turbine Repair, page 4

120VAC, 7.0 Models, 17R936

120VAC, 9.0 Models 17R937

120VAC, 9.5 Models 17R938

230VAC, 7.0 Models 17R939

230VAC, 9.0 Models 17R940

230VAC, 9.5 Models 17R941

Control Board Repair,

page 6

120VAC, Standard Models 17R942

120VAC, ProContractor/ProComp Models 17R943

230VAC, Standard Models 17R944

230VAC, ProContractor/ProComp Models 17R945

Potentiometer Repair,

page 8

Standard Models 17R946

ProContractor/ProComp Models 17R948

Compressor Repair

(ProComp Models

only), page 11

120VAC Models 17R962

230VAC Models 17R964

Warnings

23A5024B

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this

equipment. The exclamation point symbol alerts you to a general warning and the hazard

symbols refer to procedure-specific risks. When these symbols appear in the body of this

manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols

and warnings not covered in this section may appear throughout the body of this manual

where applicable.

ELECTRIC SHOCK HAZARD

This equipment must be grounded.Improper grounding, setup, or usage of the system can

cause electric shock.

•Turn off and disconnect power cord before servicing equipment.

•Connect only to grounded electrical outlets.

•Use only 3-wire extension cords.

•Ensure ground prongs are intact on power and extension cords.

•Do not expose to rain. Store indoors.

PRESSURIZED EQUIPMENT HAZARD

Fluid from the equipment, leaks, or ruptured components can splash in the eyes or on skin and

cause serious injury.

•Follow the Pressure Relief Procedure when you stop spraying/dispensing and before

cleaning, checking, or servicing equipment.

•Tighten all fluid connections before operating the equipment.

•Check hoses, tubes, and couplings daily. Replace worn or damaged parts immediately.

PERSONAL PROTECTIVE EQUIPMENT

Wear appropriate protective equipment when in the work area to help prevent serious injury,

including eye injury, hearing loss, inhalation of toxic fumes, and burns. This protective

equipment includes but is not limited to:

•Protective eyewear, and hearing protection.

•Respirators, protective clothing, and gloves as recommended by the fluid and solvent

manufacturer.

Pressure Relief Procedure

3A5024B 3

Pressure Relief Procedure

Follow the Pressure Relief

Procedure whenever you see this

symbol.

1. Turn the ON/OFF switch to OFF

position.

Standard Models:

ProContractor and ProComp Models:

2. Unplug power cord to disconnect power.

3. Disconnect spray gun from air hose.

If using a FlexLiner System:

4. Disconnect tubing from gun to relieve

pressure in the cup.

If using a ProComp remote cup:

5. Turn compressor ON/OFF switch to OFF

position.

6. Disconnect air hose from remote cup.

Turn out pressure regulator one turn.

Wait until pressure is completely

relieved before removing cover.

The spray gun cup is pressurized. To

reduce the risk of splashing from

pressurized fluid, always follow the

Pressure Relief Procedure before

removing cup.

ti30756a

ti30625a

ti30756a

ti30757a

ti30627a

ti30892a

ti30893a

Turbine Repair

43A5024B

Turbine Repair

Standard Models

Refer to the Parts List - Standard Models,

page 13.

Removal:

1. Perform Warnings, page 2.

2. Turn power switch (36) to OFF and

unplug the power cord to disconnect

power.

3. Disconnect air hose from the turbine

outlet.

4. Remove eight screws (16) and the top

cover (31).

NOTE: Be cautious not to damage the wires

that connect to the cover.

5. Remove five screws (16), disconnect air

hose (29), and remove the rear panel

(22).

6. Remove three screws (16) and the air

filter housing (15). Remove gasket (14)

from the filter housing (15) and discard.

7. Disconnect the motor leads from the

control board (20).

8. Remove the 3 turbine mounting bolts

(13) and spacers (9 & 11).

9. Remove the turbine assembly (12).

10. Remove plate (10) and gasket (8).

11. Remove three nuts (7) and gaskets (6).

Installation:

1. Apply thread locker to studs on the

turbine enclosure (1) and install three

new nuts (7) and gaskets (6). Torque to

110-115 in-lb (12.5 - 13.0 N•m).

2. Install new turbine assembly (12) along

with new plate (10) and gasket (8).

3. Apply thread locker to turbine mounting

bolts (13) and slide into place through

the spacers (9 & 11). Torque to 110-115

in-lb (12.5 - 13.0 N•m).

4. Connect motor leads to the control board

(20). Refer to Wiring Diagrams

(Standard), page 18.

5. Place new gasket (14) onto filter housing

(15) and install using 3 screws (16).

Torque to 20-25 in-lbs (2.5 - 3.0 N•m).

6. Connect air hose (29) to rear panel (22)

and install using five screws (16). Torque

to 20-25 in-lbs (2.5 - 3.0 N•m).

7. Install top cover (31) using 8 screws (16).

Torque to 20-25 in-lbs (2.5 - 3.0 N•m).

NOTICE

Use blue thread locker provided in turbine

repair kit to avoid loosening of spacers due

to turbine vibration. Failure to use thread

locker may result in premature turbine

failure.

Turbine Repair

3A5024B 5

ProContractor & ProComp

Models

Refer to the Parts List - ProContractor

Models, page 15 & Parts List - ProComp

Models, page 17.

Removal:

1. Perform Warnings, page 2.

2. Turn the power switch (36) to OFF and

unplug the power cord to disconnect

power.

3. Disconnect air hose from the turbine

outlet.

4. Remove eleven screws (16) and the top

cover (31).

NOTE: Be cautious not to damage the wires

that connect to the cover.

5. Remove six screws (16), disconnect air

hose (18), and remove the rear panel

(22).

6. Remove five screws (16), leaving two

outlet valve (17) mounting screws (16) in

place. Remove the front panel (30). Pull

straight out to remove the outlet valve

assembly (17) from the turbine (12)

outlet.

7. Use a flat blade screwdriver to pry strain

relief (39) from inner panel (15).

Disconnect the monitor leads from the

control board (20).

8. Loosen two mounting nuts (83) on the

inner panel (15).

9. Remove the three turbine mounting bolts

(13) and spacers (9 & 11) (Some models

only have a single spacer).

10. Remove the turbine assembly (12).

Remove the mounting plate (10) and

gasket (8).

11. Remove three nuts (7) and gaskets (6).

Installation:

1. Apply thread locker to studs on the

turbine enclosure (1) and install three

new nuts (7) and gaskets (6).

2. Install new turbine assembly (12) along

with new plate (10) and gasket (8).

3. Apply blue thread locker to turbine

mounting bolts (13) and slide into place

through the spacers (9 & 11). Torque to

110-115 in-lb (12.5 - 13.0 N•m).

4. Tighten the mounting nuts (83) on the

inner panel (15). Torque to 20-25 in-lbs

(2.5 - 3.0 N•m).

5. Route the turbine (12) leads through the

strain relief (39) and install back into

inner panel (15).

6. Connect motor leads to the control board

(20). Refer to Wiring Diagrams

(ProContractor), page 19 and Wiring

Diagrams (ProComp), page 20.

7. Install the front panel (30) using five

screws (16). Torque to 20-25 in-lbs (2.5

- 3.0 N•m).

8. Connect air hose (18) to rear panel (22)

and install using six screws (16). Torque

to 20-25 in-lbs (2.5 - 3.0 N•m).

9. Install top cover (31) using eleven

screws (16). Torque to 20-25 in-lbs (2.5

- 3.0 N•m).

NOTICE

Use blue thread locker provided in turbine

repair kit to avoid loosening of spacers due

to turbine vibration. Failure to use thread

locker may result in premature turbine

failure.

Control Board Repair

63A5024B

Control Board Repair

Standard Models

Refer to the Parts List - Standard Models,

page 13.

Removal:

1. Perform Warnings, page 2.

2. Turn the power switch (36) to OFF and

unplug the power cord to disconnect

power.

3. Remove eight screws (16) and the top

cover (31).

NOTE: Be cautious not to damage the wires

that connect to the cover.

4. Remove five screws (16), disconnect air

hose (29), and remove the rear panel

(22).

5. Disconnect turbine motor leads (12) and

the potentiometer (45) from the control

board (20). Refer to Wiring Diagrams

(Standard), page 18.

6. Disconnect control board leads to the

power switch (36) and power cord

receptacle (23). Refer to Wiring

Diagrams (Standard), page 18.

7. Remove four control board mounting

screws (21) and remove control board

(20).

Installation:

1. Install new control board (20) using four

screws (21). Torque to 15-20 in-lbs (1.7

- 2.3 N•m).

2. Connect control board leads to the

power switch (36) and power cord

receptacle (23). Refer to Wiring

Diagrams (Standard), page 18.

3. Connect turbine motor leads (12) and

potentiometer (45) to the new control

board (20). Refer to Wiring Diagrams

(Standard), page 18.

4. Connect air hose (29) to rear panel (22)

and install using five screws (16).Torque

to 20-25 in-lbs (2.5 - 3.0 N•m).

5. Install top cover (31) using eight screws

(16). Torque to 20-25 in-lbs (2.5 - 3.0

N•m).

Control Board Repair

3A5024B 7

ProContractor & ProComp

Models

Refer to the Parts List - ProContractor

Models, page 15 & Parts List - ProComp

Models, page 17.

Removal:

1. Perform Warnings, page 2.

2. Turn the power switch (36) to OFF and

unplug the power cord to disconnect

power.

3. Remove eleven screws (16) and the top

cover (31).

NOTE: Be cautious not to damage the wires

that connect to the cover.

4. Remove two screws (21) that mount the

TurboControl LED (20a) to the top cover.

5. Peel foam gasket (90) back and remove

wires from power switch (36) and

potentiometer (47) from the wire bundle.

Refer to Fig. 1.

6. For ProComp models, peel open foam

gasket (91) to remove wire bundle and

discard.

7. Remove six screws (16), disconnect air

hose (18), and remove rear panel (22).

8. Disconnect all leads going to and from

the control board (20). Refer to Wiring

Diagrams (ProContractor), page 19

and Wiring Diagrams (ProComp),

page 20.

9. Remove the air line (19) going to control

board (20).

10. Remove four control board mounting

screws (21) and remove control board

(20).

Installation:

1. Install new control board (20) using four

screws (21). Torque to 15-20 in-lbs (1.7

- 2.3 N•m).

2. Connect the air line (19) to the control

board (20).

3. Peel off the paper backing and place

sticky side of foam gasket (88) onto the

TurboControl LED (20a). Install

mounting screws (21) to top cover (31).

Torque to 15-20 in-lbs (1.7 - 2.3 N•m).

4. Route ribbon cable from TurboControl

LED (20a), wires from potentiometer

(47), and wires from power switch (36)

through the foam gasket (90) as shown.

Place sticky side of foam gasket (90)

down onto the TurboControl LED (20a).

Refer to Fig. 1.

5. For ProComp models, wrap foam gasket

(91) around the wire bundle to protect

against damage from the compressor

power switch (77).

6. Connect all leads going to and from the

control board (20). Refer to Wiring

Diagrams (ProContractor), page 19

and Wiring Diagrams (ProComp),

page 20.

7. Connect air hose (18) to rear panel (22)

and install using six screws (16). Torque

to 20-25 in-lbs (2.5 - 3.0 N•m).

8. Install top cover (31) using eleven

screws (16). Torque to 20-25 in-lbs (2.5

- 3.0 N•m).

Fig. 1

ProComp Models

ti31348a

Potentiometer Repair

83A5024B

Potentiometer Repair

Standard Models

Refer to the Parts List - Standard Models,

page 13.

Removal:

1. Perform Warnings, page 2.

2. Turn power switch (36) to OFF and

unplug the power cord to disconnect

power.

3. Loosen two set screws and remove the

knob (37).

4. Remove eight screws (16) and the top

cover (31).

NOTE: Be cautious not to damage the wires

that connect to the cover.

5. Remove mounting nut and washer of

potentiometer (45) from the top cover

(31).

6. Disconnect potentiometer (45) from the

control board (20).

Installation:

1. Connect new potentiometer (45) to the

control board (20). Refer to Wiring

Diagrams (Standard), page 18.

2. Remove the mounting nut from the

potentiometer (leave washer in place)*

and slide through opening in the top cover

(31). For proper alignment, the locating

tab on the potentiometer (45) should be

inserted into the hole in the top cover (31).

Refer to Fig. 2.

*Remove and discard plain washer if unit has

Isolator (17X783).

3. Install the mounting nut. Torque to 10-15

in-lb (1.1 - 1.7 N•m).

4. Install top cover (31) using eight screws

(16). Torque to 20-25 in-lbs (2.5 - 3.0

N•m).

5. Rotate the shaft of the potentiometer

(45) clockwise as far as it can go. Slide

the knob (37) over the shaft and align the

pointer to the maximum setting on the

control label (35). While applying a light

pressure to the knob (37), tighten the two

set screws to 3-5 in-lb (0.3 - 0.6 N•m).

Fig. 2

Potentiometer Repair

3A5024B 9

ProContractor & ProComp

Models

Refer to the Parts List - ProContractor

Models, page 15 & Parts List - ProComp

Models, page 17.

Removal:

1. Perform Warnings, page 2.

2. Turn power switch (36) to OFF and

unplug the power cord to disconnect

power.

3. Loosen the two set screws and remove

the knob (37).

4. Remove eleven screws (16) and the top

cover (31).

NOTE: Be cautious not to damage the wires

that connect to the cover..

5. Remove mounting nut and washer of

potentiometer (45) from the top cover

(31).

6. For ProComp models only, peel open

foam gasket (91) to remove wire bundle

and discard. See Fig. 1 on page 7.

7. Disconnect potentiometer (47) from

control board (20).

8. Peel foam gasket (90) attached to top

cover (31) back and slide the

potentiometer (47) wires from the

bundle. See Fig. 1 on page 7.

Potentiometer Repair

10 3A5024B

Installation:

1. Route the wire from the new

potentiometer (47) through the foam

gasket (90).

2. Connect potentiometer (47) to the

control board (20). Refer to Wiring

Diagrams (ProContractor), page 19

and Wiring Diagrams (ProComp),

page 20.

3. For ProComp models, wrap the foam

gasket (91) around the wire bundle to

protect against damage from the

compressor power switch (77).

4. Remove the mounting nut from the

potentiometer (leave washer in place)*

and slide through opening in the top cover

(31). For proper alignment, the locating

tab on the potentiometer (47) should be

inserted into the hole in the top cover (31).

Refer to Fig. 3.

*Remove and discard plain washer if unit has

Isolator (17X783).

5. Install the mounting nut. Torque to 10-15

in-lb (1.1 - 1.7 N•m).

6. Install top cover (31) using eight screws

(16). Torque to 20-25 in-lbs (2.5 - 3.0

N•m).

7. Rotate the shaft of the potentiometer

(45) clockwise as far as it can go. Slide

the knob (37) over the shaft and align the

pointer to the maximum setting on the

control label (35). While applying a light

pressure to the knob (37), tighten the two

set screws to 3-5 in-lb (0.3 - 0.6 N•m).

Fig. 3

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