Graco PM8 Guía de configuración

3A8560C

Repair Instructions

PM8 and PM20

Meter Repair

For dispensing of petroleum based oils and anti-freeze. For professional use only.

Not approved for use in explosive atmospheres or hazardous (classified) locations.

PM8 and PM 20 Meter Models

See page 2 for model information, including maximum

working pressure and approvals

1500 psi (10.3 MPa, 103 bar) Maximum Working

Pressure

200 psi (1.4 MPa, 14 bar) Maximum Working Pressure -

Anti-freeze models

Repair Kits

18F169 Bezel Replacement, page 7

18F390 Anti-freeze Meter Bezel Replacement, page 7

18F170 Gasket Replacement, page 10

18F171 Solenoid Replacement, page 12

18F172 Trigger Replacement, page 15

18F173 Connection Replacement page 16

18F174 Valve Replacement for petroleum oil and gear

lube fluid valves, page 18

18F175 Valve Replacement for anti-freeze fluid valves,

page 18

18F176 Meter Replacement, page 23

Related Manuals

Important Safety Instructions

Read all warnings and instructions in this

manual and in related PM8 and PM20

meter manuals before using the

equipment. Save all instructions.

Manual in

English Description

3A8307 PM8 and PM20 Meters

2 3A8560C

Models

Part No. Model Inlet Thread Fluid Extension Maximum Working Pressure

25U085 PM8 1/2 in. NPT Anti-freeze Rigid 200 psi (1.4 MPa, 14.0 bar)

25U086 PM8 1/2 in. NPT Anti-freeze Flex 200 psi (1.4 MPa, 14.0 bar)

25U087 PM8 1/2 in. BSPP Anti-freeze Rigid 200 psi (1.4 MPa, 14.0 bar)

25U088 PM8 1/2 in. BSPP Anti-freeze Flex 200 psi (1.4 MPa, 14.0 bar)

25U089 PM8 1/2 in. BSPT Anti-freeze Rigid 200 psi (1.4 MPa, 14.0 bar)

25U090 PM8 1/2 in. BSPT Anti-freeze Flex 200 psi (1.38 MPa, 13.8 bar)

273156 PM8 1/2 in. NPT Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273157 PM8 1/2 in. NPT Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273158 PM8 1/2 in. NPT Gear lubes Gear lube 1500 psi (10.3 MPa, 103 bar)

273159 PM8 1/2 in. BSPP Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273160 PM8 1/2 in. BSPP Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273161 PM8 1/2 in. BSPP Gear lubes Gear lube 1500 psi (10.3 MPa, 103 bar)

273162 PM8 1/2 in. BSPT Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273163 PM8 1/2 in. BSPT Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273164 PM8 1/2 in. BSPT Gear lubes Gear lube 1500 psi (10.3 MPa, 103 bar)

273165 PM20 1/2 in. NPT Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273166 PM20 1/2 in. NPT Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273167 PM20 3/4 in. NPT Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273168 PM20 3/4 in. NPT Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273169 PM20 1/2 in. BSPP Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273170 PM20 1/2 in. BSPP Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273171 PM20 3/4 in. BSPP Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273172 PM20 3/4 in. BSPP Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273173 PM20 1/2 in. BSPT Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273174 PM20 1/2 in. BSPT Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

273175 PM20 3/4 in. BSPT Petroleum based oils Rigid 1500 psi (10.3 MPa, 103 bar)

273176 PM20 3/4 in. BSPT Petroleum based oils Flex 1500 psi (10.3 MPa, 103 bar)

Contents

3A8560C 3

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Recycling and Disposal . . . . . . . . . . . . . . . . . . . . . . 6

End of Product Life . . . . . . . . . . . . . . . . . . . . . . . 6

Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . 7

Bezel Replacement . . . . . . . . . . . . . . . . . . . . . . . 7

Gasket Replacement . . . . . . . . . . . . . . . . . . . . . 10

Solenoid Replacement . . . . . . . . . . . . . . . . . . . . 12

Trigger Replacement . . . . . . . . . . . . . . . . . . . . . 15

Connection Replacement. . . . . . . . . . . . . . . . . . 16

Valve Replacement . . . . . . . . . . . . . . . . . . . . . . 18

Meter Replacement . . . . . . . . . . . . . . . . . . . . . . 23

Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

California Proposition 65 . . . . . . . . . . . . . . . . . . . . 27

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 28

Warnings

4 3A8560C

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.

WARNING

SKIN INJECTION HAZARD

High-pressure fluid from dispensing device, hose leaks, or ruptured components will pierce skin. This

may look like just a cut, but it is a serious injury that can result in amputation. Get immediate surgical

treatment.

• Do not point dispensing device at anyone or at any part of the body.

• Do not put your hand over the fluid outlet.

• Do not stop or deflect leaks with your hand, body, glove, or rag.

• Use only extensions that are designed for use with dispensing valve.

• Do not use low-pressure flexible extensions with this equipment.

• Follow the Pressure Relief Procedure when you stop dispensing and before cleaning, checking, or

servicing equipment.

• Tighten all fluid connections before operating the equipment.

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

FIRE AND EXPLOSION HAZARD

When flammable fluids are present in the work area, such as gasoline and windshield wiper fluid, be

aware that flammable fumes can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well-ventilated area.

• Eliminate all ignition sources, such as cigarettes and portable electric lamps.

• Ground all equipment in the work area.

• Keep work area free of debris, including rags and spilled or open containers of solvent and gasoline.

• Do not plug or unplug power cords or turn lights on or off when flammable fumes are present.

• Use only conductive hoses.

•Stop operation immediately if static sparking occurs or you feel a shock. Do not use equipment

until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

Warnings

3A8560C 5

EQUIPMENT MISUSE HAZARD

Misuse can cause death or serious injury.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not exceed the maximum working pressure or temperature rating of the lowest rated system

component. See Technical Specifications in all equipment manuals.

• Use fluids and solvents that are compatible with equipment wetted parts. See Technical

Specifications in all equipment manuals. Read fluid and solvent manufacturer’s warnings. For

complete information about your material, request Safety Data Sheets (SDSs) from distributor or

retailer.

• Turn off all equipment and follow the Pressure Relief Procedure when equipment is not in use.

• Check equipment daily. Repair or replace worn or damaged parts immediately with genuine

manufacturer’s replacement parts only.

• Do not alter or modify equipment. Alterations or modifications may void agency approvals and

create safety hazards.

• Make sure all equipment is rated and approved for the environment in which you are using it.

• Use equipment only for its intended purpose. Call your distributor for information.

• Route hoses and cables away from traffic areas, sharp edges, moving parts, and hot surfaces.

• Do not kink or over bend hoses or use hoses to pull equipment.

• Keep children and animals away from work area.

• Comply with all applicable safety regulations.

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. 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.

WARNING

Recycling and Disposal

6 3A8560C

Recycling and Disposal

End of Product Life

At the end of the product’s useful life, dismantle and

recycle it in a responsible manner.

• Perform the Pressure Relief Procedure.

• Drain and dispose of fluids according to applicable

regulations. Refer to the material manufacturer’s

Safety Data Sheet.

• Remove motors, batteries, circuit boards, LCDs

(liquid crystal displays), and other electronic

components. Recycle according to applicable

regulations.

Do not dispose of batteries or electronic

components with household or commercial waste.

• Deliver remaining product to a recycling facility.

Repair

3A8560C 7

Repair

Pressure Relief Procedure

Follow the Pressure Relief Procedure

whenever you see this symbol.

1. Turn off power supply to the pump.

2. Trigger the dispense valve into a waste container to

relieve pressure.

3. Open any bleed-type master air valves and fluid

drain valves in the system.

4. Leave the drain valve open until ready to pressurize

the system.

5. If it appears that the valve, extension or nozzle is

clogged or that pressure has not been fully relieved:

a. Very slowly loosen the fitting nut on the hose to

relieve pressure gradually.

b. After the pressure has been relieved, loosen the

fitting nut on the hose completely.

c. Clear the obstruction in the hose or tip.

Bezel Replacement

Bezel Replacement Kit (18F169)

Anti-freeze Meter Bezel Replacement Kit (18F390)

Disassembly

1. Follow Pressure Relief Procedure, page 7.

2. Loosen the swivel (33) from the hose and remove

the meter, then move to a work bench for repair.

3. Pull the impact guard (37) off of the meter (FIG. 1).

4. Remove the four screws (9) (FIG. 2).

This equipment stays pressurized until pressure is

manually relieved. To help prevent serious injury from

pressurized fluid, such as skin injection, splashing

fluid and moving parts, follow the Pressure Relief

Procedure when you stop dispensing and before

cleaning, checking, or servicing the equipment.

FIG. 1

FIG. 2

Repair

8 3A8560C

5. Disassemble the bezel (1) from the meter housing

(10) (FIG. 3).

NOTE: Take care not to damage solenoid wire (14a).

6. Disconnect the solenoid wires (14a) from the

terminal block on the bezel (1) (FIG. 4).

7. Recycle and dispose of the replaced bezel

according to local recycling regulations.

8. Remove and discard gasket (2) that is located

between the meter housing (10) and bezel (1), see

FIG. 3.

Reassembly

1. Replace the gasket (2) with the new one from the

kit, adhesive side down, onto the meter housing

(10), see FIG. 3, discarding the unused second

gasket (2).

2. Reconnect the solenoid wires (14a) to the terminal

block on the bezel (1). The wires are polarity

independent so place one wire in each terminal

opening, see FIG. 4.

Optional - replace batteries (36) with four (4) new

alkaline batteries.

Optional - Replace the original foam pieces (39).

3. Route the solenoid and the battery wires as shown

in FIG. 5.

FIG. 3

FIG. 4

14a

14a Terminal

Block

Repair

3A8560C 9

4. Position the bezel (1) so that the display is in the

upright position when holding the valve.

5. Reassemble the bezel (1) to the meter housing (10),

see FIG. 3 on page 8.

6. Replace the four screws (9) and torque to 15 to 25

in-lbs (1.69 to 2.82 N•m), see FIG. 2 on page 7.

7. Reassemble the impact guard (37).

8. Replace the meter onto the hose.

FIG. 5

Repair

10 3A8560C

Gasket Replacement

Gasket Replacement Kit (18F170)

Disassembly

1. Follow Pressure Relief Procedure, page 7.

2. Loosen the swivel (33) from the hose and remove

the meter, then move to a work bench for repair.

3. Pull the impact guard (37) off of the meter (FIG. 6).

4. Remove the four screws (9) (FIG. 7).

5. Disassemble the bezel (1) from the meter housing

(10) (FIG. 8).

NOTE: Take care not to damage solenoid wire (14a).

6. Disconnect the solenoid wires (14a) from the

terminal block on the bezel (1) (FIG. 9).

7. Remove and discard gasket (2) that is located

between the meter housing (10) and bezel (1), see

FIG. 8.

8. Replace the larger gasket (2) with the new one from

the kit, adhesive side down, onto the meter housing

(10), see FIG. 8.

FIG. 6

FIG. 7

FIG. 8

FIG. 9

14a

Terminal

Block

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