Graco PM8 Guide de configuration
3A8560C
EN
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
37
9
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
10
1
2
14a
1
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
37
9
FIG. 8
FIG. 9
10
1
2
14a
1
14a
Terminal
Block
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