Graco 3A8595A, L20c Single Post Elevator Owner's manual

Brand: Graco

Model: 3A8595A, L20c Single Post Elevator

Type: Owner's manual

Graco 3A8595A, L20c Single Post Elevator

The Graco 3A8595A, L20c Single Post Elevator is a professional-grade tool designed for transferring medium to high viscosity sealants and adhesive materials at ambient temperature. With its 20-liter (5-gallon) capacity and 100 psi (0.7 MPa, 7 bar) maximum air inlet pressure, this elevator is ideal for handling a variety of materials efficiently. The single-post design provides stability and ease of use, while the air controls allow for precise adjustment of the elevator's speed and height.

Graco 3A8595A, L20c Single Post Elevator

3A8595A

Operation

L20c Single Post

Supply System

Used to transfer medium to high viscosity sealants and adhesive materials, at ambient

temperature, out of various sized material pails. For professional use only.

L20c 2 inch single post supply system

20 liter (5 gallon)

100 psi (0.7 MPa, 7bar) Maximum Air Inlet Pressure

See page 3 for model information and approvals.

Important Safety Instructions

Read all warnings and instructions in this

manual before using the equipment.

Save these instructions.

Related Manuals

2 3A8595A

Contents

Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Pump Identification . . . . . . . . . . . . . . . . . . . . . . . 4

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Component Identification . . . . . . . . . . . . . . . . . . . . 8

Air Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

General Information . . . . . . . . . . . . . . . . . . . . . . 10

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Flush Before Using Equipment . . . . . . . . . . . . . 11

Mechanical Setup . . . . . . . . . . . . . . . . . . . . . . . 11

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Basic Supply System Operating Controls . . . . . 12

Pressure Relief Procedure . . . . . . . . . . . . . . . . . 13

Start and Adjust Elevator . . . . . . . . . . . . . . . . . . 14

Start and Adjust Pump. . . . . . . . . . . . . . . . . . . . 15

Change Pails . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Shutdown and Care of the Pump . . . . . . . . . . . 17

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Elevator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Recycling and Disposal . . . . . . . . . . . . . . . . . . . . . 20

End of Product Life . . . . . . . . . . . . . . . . . . . . . . 20

Technical Specifications . . . . . . . . . . . . . . . . . . . . 21

California Proposition 65 . . . . . . . . . . . . . . . . . . . . 21

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 22

Related Manuals

Manual in

English Description

Supply Systems

313527 Supply Systems Repair-Parts

Pump Packages

312376 Check-Mate® Pump Packages

Instruction-Parts

Pump Parts and Repair

312375 Check-Mate® Displacement Pumps

Instructions-Parts

312889 60 cc Check-Mate Displacement Pump

Repair Parts Manual

Air Motors

312796 NXT® Air Motor (Mxxxxx models)

Instructions-Parts

Accessories

312374 Air Controls Instructions-Parts

312491 Pump Fluid Purge Kit

Models

3A8595A 3

Models

Check the identification plate (ID) for the 6-digit part number of the supply

system. Use the following matrix to define the construction of the supply

system, based on the six digits. For example, Part No. CM4A1B

represents a Check-Mate supply system (CM), a carbon steel Check-Mate

60 displacement pump with an NXT 200 air motor (pump code 4A), a 2 in.

single post elevator with air control panel (1) and a 5-gallon platen with a

nitrile seal (B).

Some configurations in the following matrix cannot be built. See the

Product Selection guide for available systems.

To order replacement parts, see the Parts section in the Supply Systems

Repair-Parts manual.

Key:

CM 4A 1 B

First and

Second Digit Third and

Fourth Digit Fifth Digit Sixth Digit

Pump Code

Elevator Options Platen and Seal Options

Size

Model

Name Air Controls

Platen

Size

Platen

Style

Platen

Material

Seal

Material

(Supply

System with

Check-Mate

displacement

pump)

(See Table 1

for 2-digit

Check-Mate

Pump Code)

12 in. L20c Air Control Panel B20 L

(5 Gal) F, SW CS Nitrile

C20 L

(5 Gal) F, SW CS Polyurethane

F20 L

(5 Gal) F, SW SST PTFE

G20 L

(5 Gal) F, DW CS Nitrile

H20 L

(5 Gal) F, DW CS Polyurethane

J30 L

(8 Gal) F, SW CS Nitrile

CS = Carbon Steel SW = Single wiper F = Flat

SST = Stainless Steel DW = Double wiper

Models

4 3A8595A

Pump Identification

See the Check-Mate Pump Packages Instruction-Parts

manual or the ID plate on the pump to determine the

pump part number.

The pump identification code listed in Table 1

represents the air motor style, nominal air motor size

(cc), pump style, pump displacement (cc), and pump

material of construction. For example, NXT 200/CM 60

represents a 200 cc (2200) NXT Air Motor (NXT), with a

60 cc (60) Check Mate (CM) pump.

• Air Motor Style Options: NXT

• Pump Style Options: Check Mate (CM)

• Pump Materials of Construction: Carbon steel (CS)

or Stainless steel (SS)

NOTE: For further breakdown of the pump and drive

configuration for a specific pump code, refer to the

manual listed at the top of the column containing the

six digit pump part number in Table 1.

Table 1: Check-Mate Pump Identification

Code/Part No. Index

Pump Code

Pump Model

(see manual 312376)

NXT 200/CM 60

4A P05LCS

4B P05LCM

4C P05LSS

4F P05LSM

NXT 400/CM 60

6A P11LCS

6B P11LCM

6C P11LSS

6F P11LSM

NXT 700/CM 60

7A P20LCS

7B P20LCM

7C P20LSS

7F P20LSM

NXT 1200/CM 60

8A P38LCS

8B P38LCM

8C P38LSS

8F P38LSM

NXT 1800/CM 60

9A P61LCS

9B P61LCM

9C P61LSS

9F P61LSM

Warnings

3A8595A 5

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.

• 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.

MOVING PARTS HAZARD

Moving parts can pinch, cut or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Equipment can start without warning. Before checking, moving, or servicing equipment, follow the

Pressure Relief Procedure and disconnect all power sources.

Warnings

6 3A8595A

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or

solvent flowing through the equipment can cause static sparking. To help prevent fire and explosion:

• Use equipment only in well-ventilated area.

• Eliminate all ignition sources, such as pilot lights, cigarettes, portable electric lamps, and plastic

drop cloths (potential static sparking).

• Ground all equipment in the work area. See Grounding instructions.

• Never spray or flush solvent at high pressure.

• Keep work area free of debris, including solvent, rags and gasoline.

• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes

are present.

• Use only grounded hoses.

• Hold dispense valve firmly to side of grounded pail when triggering into pail. Do not use pail liners

unless they are anti-static or conductive.

•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.

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.

• Do not leave the work area while equipment is energized or under pressure.

• 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.

SPLATTER HAZARD

Hot or toxic fluid can cause serious injury if splashed in the eyes or on skin. During blow off of platen,

splatter may occur.

• Use minimum air pressure when removing platen from drum.

WARNING

Warnings

3A8595A 7

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or

swallowed.

• Read Safety Data Sheets (SDSs) to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

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

Component Identification

8 3A8595A

Component Identification

Key:

A Elevator Cart

B Air Motor

C Displacement Pump

D Platen

E Enclosed Wet Cup (behind air controls)

F Elevator and Pump Air Controls

G Platen Bleed Port

H Pump Bleed Valve

J Air Inlet

K Bleed Stick

L Elevator Lift Cylinder

M Priming Piston/Pump Inlet

FIG. 1: Component Identification

Model CM7B1G Shown

r_257032_312376_1e

Lift

Location

Component Identification

3A8595A 9

Air Controls

•Air motor regulator and gauge (AA): Controls and

displays air pressure supplied to the air motor (B) to

drive the displacement pump (C).

•Blowoff button (AB): Turns air on and off to push

the platen out of an empty pail. The blowoff button

is only functional when the elevator director valve

(AD) is in the UP (open) position.

•Air motor shutoff valve (AC): Turns air on and off

to the air motor. The air motor shutoff valve (AC) is

shown in the ON (open) position in FIG. 2.

•Elevator director valve (AD): Applies air to the

elevator lift cylinder (L) to raise and lower the

elevator, which raises and lowers the displacement

pump (C).The elevator director valve (AD) is shown

in the UP (open) position in FIG. 2.

Air and Fluid Hoses

Be sure all air hoses and fluid hoses are properly sized

and pressure-rated for your system. Use only

electrically conductive hoses. Fluid hoses must have

spring guards on both ends. Use of a short whip hose

and a swivel between the main fluid hose and the

dispense valve allows for more free dispense valve

movement.

FIG. 2: Supply System Air Controls

FIG. 3: Air Control Labels

r_257302_312376_2e

Installation

10 3A8595A

Installation

General Information

NOTE: Reference numbers and letters in parentheses

in the text refer to the callouts in the figures.

Accessories are available from Graco. Make certain all

accessories are adequately sized and pressure-rated to

meet the system’s requirements.

Contact your Graco distributor for assistance in

designing a system to suit your particular needs.

Location

1. Attach a lifting sling at the proper lift spots (see FIG.

1). Lift off of the pallet using a crane or a forklift.

2. Position the supply system so the air controls are

easily accessible. Ensure that there is enough

space overhead for the elevator to raise fully. (See

Dimensions, page 19)

3. Ensure that the supply system base is level in all

directions to prevent the supply system from

tipping or rolling.

Grounding

Pump: use the included ground wire and clamp

(238909). Loosen grounding lug locknut and washer.

Insert one end of supplied ground wire into slot in lug

and tighten locknut securely. Connect other end of wire

to a true earth ground. See FIG. 4.

Air and fluid hoses: use only electrically conductive

hoses with a maximum of 500 ft. (150 m) combined

hose length to ensure grounding continuity. Check

electrical resistance of hoses. If total resistance to

ground exceeds 29 megohms, replace hose

immediately.

Air compressor: follow manufacturer’s

recommendations.

Dispense valve: ground through connection to a

properly grounded fluid hose and pump.

Fluid supply container: follow local code.

Object being sprayed: follow local code.

Solvent pails used when flushing: follow local code.

Use only conductive metal pails, placed on a grounded

surface. Do not place the pail on a nonconductive

surface, such as paper or cardboard, which interrupts

grounding continuity.

To maintain grounding continuity when flushing or

relieving pressure: hold metal part of the dispense

valve firmly to the side of a grounded metal pail, then

trigger the dispense valve.

NOTICE

If using a lift to move the system, always lift the sup-

ply system at the proper lift location (see FIG. 1). Do

not lift in any other way. Failure to lift at the proper

lift location can result in damage to the supply sys-

tem.

The equipment must be grounded to reduce the risk

of static sparking. Static sparking can cause fumes

to ignite or explode. Grounding provides an escape

wire for the electric current.

FIG. 4

ti8250a

Installation

3A8595A 11

Flush Before Using Equipment

The equipment was tested with lightweight oil, which is

left in the fluid passages to protect parts. To avoid

contaminating your fluid with oil, flush the equipment

with a compatible solvent before using the equipment.

See your pump manual for flushing instructions.

Mechanical Setup

1. Fill the displacement pump wet cup 1/3 full with

Graco Throat Seal Liquid (TSL).

2. Back-off the air motor regulator (AA) to its full

counterclockwise position and close the air motor

shutoff valve (AC). This disables the pump from

running when air is applied.

3. Place the elevator director valve (AD) in the DOWN

position. This disables the elevator from lifting

when air is applied.

4. Connect the air line from an air source to the

system air inlet. See FIG. 1. Refer to the pump

performance curves in the Check-Mate Pump

Packages Instructions-Parts manual to determine

your air supply flow requirements. Use a supply

hose capable of meeting the required flow.

NOTE: Quick disconnects restrict flow for large air

motors.

5. Connect the pump outlet fittings and fluid hose (not

supplied).

NOTE: Make sure all components are adequately sized

and pressure rated to meet the system requirements.

Overview

12 3A8595A

Overview

Basic Supply System Operating

Controls

Review the following descriptions of the air controls

before operating the equipment. See Air Controls on

page 9.

Air Motor Shutoff Valve (AC)

The air motor shutoff valve (AC) turns air on and off to

the air motor (B). When closed, the valve relieves

pressure to the air motor.

Elevator Director Valve (AD)

The elevator director valve (AD) is used to raise and

lower the elevator. Moving the director valve handle to

UP will raise the elevator, and moving the director valve

handle to DOWN will lower the elevator.

Air Motor Regulator and Gauge (AA)

Air pressure to the air motor (B) can be adjusted and

viewed using the air motor regulator (AA) and gauge.

Pull the knob cap to unlock the air motor regulator (AA)

and allow rotation, and push the knob cap back in to

lock the air motor regulator (AA) and prevent rotation.

Rotate the knob counterclockwise to decrease

pressure to the air motor and decrease flow from the

pump. Rotate the knob clockwise to increase the

pressure to the air motor and increase flow from the

pump.

Blowoff Button (AB)

The blowoff button (AB) directs air to the blowoff port

on the underside of the platen (D). When the elevator

director valve (AD) is in the UP position, pressing the

blowoff button (AB) passes air under the platen,

pushing the pail away as the platen rises and keeping

the pail in contact with the elevator base. If blowoff air

is not used when the elevator is raised, the platen will

not release from the pail. Air cannot be routed to both

the elevator lift cylinder (L) and the blowoff port at the

same time. In order to keep the platen moving upwards

and also pushing away from the pail, the blowoff button

(AB) needs to be pulsed, as explained in the Pail

Change Procedure on page 16.

Raising or lowering the elevator may result in

stuttering motion. This motion is normal, and is best

described as repeated, sudden jerky movements

followed by short pauses in movement. Keep clear of

all moving parts to prevent serious injury.

Overview

3A8595A 13

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever

you see this symbol.

1. Open the dispense valve.

2. Lock the dispense valve trigger if applicable.

3. Turn the air motor shutoff valve (AC) to the OFF

position to disable the air motor (B).

4. Turn the elevator director valve (AD) to the DOWN

position to relieve pressure in the elevator lift

cylinder (L).

5. Unlock the dispense valve trigger if applicable.

6. Hold a metal part of the dispense valve firmly to the

side of a grounded metal pail, and trigger the

dispense valve to relieve pressure.

7. Lock the dispense valve trigger if applicable.

8. Open the pump bleed valve (H). Have a container

ready to catch the drainage.

9. Leave the pump bleed valve (H) open until ready to

dispense again.

10. If you suspect the dispense valve or hose is

clogged or that pressure has not been fully relieved:

a. VERY SLOWLY loosen the valve outlet fittings

or the hose end coupling(s) to relieve pressure

gradually. Refer to the appropriate manual for

specific dispense valve instructions. See

Related Manuals on page 2.

b. Remove the valve outlet fittings or the hose end

coupling(s) completely.

c. Clear the obstruction in the dispense valve or

hose.

d. Reassemble and tighten the valve outlet fittings

or the hose end coupling(s).

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. 5

DOWN

(closed)

(open)

OFF

(closed)

Overview

14 3A8595A

Start and Adjust Elevator

Load Pails

This procedure is for loading a material pail when no

other pail is installed. If a pail has already been

installed, see Change Pails on page 16.

1. Close the air motor shutoff valve (AC).

2. Turn the air motor regulator (AA) fully

counterclockwise to disable the pump.

3. Set the elevator director valve handle (AD) to UP

and let the elevator rise to its full height.

4. Inspect the platen (D) for dried or excess material

on the seal or bottom surface of the platen.

Remove any material buildup with a scraping tool.

Keep hands away from the pump inlet.

5. Lubricate the platen seals (D) with grease or other

lubricant compatible with the fluid you will pump.

6. Remove the pail cover and smooth the surface of

the fluid with a straightedge. To prevent air from

being trapped under the platen, scoop fluid from

the center of the pail to the sides, to make the

surface concave.

7. Unscrew the bleed stick (K) and remove it from the

platen bleed port (G).

8. Put the full pail on the elevator cart and center it

under the platen (D).

9. With hands away from the pail and the platen, push

down on the elevator director valve (AD) handle,

and lower the elevator until the platen rests on the

lip of the pail.

10. If the platen (D) is not aligned with the pail, use the

elevator director valve to raise the platen, then

return to step 8.

11. Lower elevator:

a. Turn the elevator director valve (AD) to the

DOWN position, and continue to lower the

elevator until fluid appears at the platen bleed

port (G).

Moving parts can pinch or amputate fingers. When

the pump is operating, and when raising or lowering

the elevator, keep fingers and hands away from the

priming piston/pump inlet, platen (D), and lip of the

pail.

When raising or lowering the elevator, the elevator lift

cylinder (L) is prone to sudden movements due to

varying drive and frictional forces.

FIG. 6: Platen and Pail Lip

FIG. 7: Pump Inlet

Pail Lip

Priming Piston/

Pump Inlet

FIG. 8

Dr_255648_313527_7a

Overview

3A8595A 15

b. It may be necessary to push down on the cart

handles to help the platen (D) enter the pail.

c. Close the platen bleed port (G) by inserting the

bleed stick (K) into the bleed port and screwing

it tight.

Start and Adjust Pump

This manual only covers generic instructions for starting

and adjusting the pump as part of the complete system.

See your specific pump instruction manual for model

specific instructions, care of the pump, preventative

maintenance, troubleshooting, and accessory

equipment. See Related Manuals on page 2.

1. Follow the Load Pails procedure on page 14.

2. Check the fluid level in the wet cup (E). Maintain a

fluid level of 1/3 full.

3. Verify the elevator director valve (AD) is set to

DOWN.

4. Inspect the platen seal around the perimeter of the

pail periodically for leakage. If leakage is present,

clean or replace the platen seal.

Purge Air From the Pump

5. Reduce air motor pressure to zero by turning the air

motor regulator (AA) fully counterclockwise.

6. Open the pump bleed valve (H) and place a

container under the valve.

7. Turn the air motor shutoff valve (AC) to the OPEN

position to allow the pump to start.

8. Gradually turn the air motor regulator (AA)

clockwise until the pump begins to cycle.

9. Allow material to flow into the cup until there is a

smooth flow with no snapping or popping caused

by trapped air.

10. Close the air motor shutoff valve (AC) to stop the

pump.

11. Close the pump bleed valve (H).

Keep hands and fingers away from the priming

piston/pump inlet, located on the bottom of the

platen, during operation and whenever the pump is

pressurized with air. Follow the Pressure Relief

Procedure before checking, clearing, or priming the

pump.

To reduce the risk of skin injection, do not use your

hand or fingers to cover the bleed hole in the

underside of the pump bleed valve (H) when priming

the pump. Use the handle or a crescent wrench to

open and close the pump bleed valve.

FIG. 9

Overview

16 3A8595A

Purge Air From the Fluid Hose and

Dispense Valve

Perform steps 12-17 only when priming new hoses, or

after replacing/maintaining wetted components

between the pump and dispense valve. These steps

describe priming from the dispense valve. If wetted

components have been cleaned or replaced, purge air

from the new/clean components, then reconnect and

prime at the dispense valve. This reduces the possibility

of pushing air through components that have already

been primed.

12. Hold a metal part of the dispense valve firmly to the

side of a grounded metal pail to collect dispensed

material.

13. Trigger the dispense valve and hold it open.

14. Open the air motor shutoff valve (AC) to start the

pump.

15. Allow material to flow into the pail until there is a

smooth flow with no snapping or popping caused

by trapped air.

NOTE: For unprimed hoses, it may take a few minutes

for material to fill the hoses and reach the dispense

head.

16. Close the dispense valve to stop material flow.

17. Make sure the elevator director valve (AD) is in the

DOWN position while the pump is operating.

Change Pails

The elevator lift cylinder (L) raises the displacement

pump (C) and platen (D). Blowoff air is used to push the

material pail off of the platen as the elevator rises.

Without blowoff air, the elevator will lift the pump,

platen, and pail. It is necessary to coordinate the rate

that the elevator lifts with the rate that the blowoff air

pushes the pail off of the platen to keep the pail in

contact with the elevator base. Keeping the pail close

to or in contact with the base of the elevator will ensure

the pail stays upright and does not tilt on the platen.

Blowoff air can only be applied when the elevator

director valve (AD) is in the UP position. A hissing

sound can usually be heard in the pail when blowoff air

is passing.

Pail Change Procedure

1. Turn the air motor shutoff valve (AC) off to stop the

pump.

2. Rotate the elevator director valve (AD) to the UP

position.

3. Once the platen (D) begins to rise, pulse the blowoff

button in one second intervals (one second ON,

one second OFF) in order to keep the platen (D)

moving while also minimizing pressure in the pail.

a. If the pail begins to raise off the cart base,

press and hold the blowoff button (AB) until the

pail contacts the cart base. Then pulse the

blowoff button (AB) as necessary to maintain

contact between the pail and the cart.

b. If the pail raises significantly above the cart

base and the pail tilts to one side on the platen,

causing blowoff air to escape from the platen

and pail, move the elevator director valve (AD)

to the DOWN position to begin lowering the

elevator until the pail makes contact and

realigns with the cart base.

Initial fluid flow from the hose or dispense valve can

splatter significantly until all air is purged. Wear

appropriate protective equipment when in the work

area and direct the fluid outlet into a container before

triggering to help prevent serious injury from

splashing fluid.

Excessive air pressure in the material pail could

cause the pail to rupture, causing serious injury. The

platen must be free to move out of the pail. Never

use pail blowoff air with a damaged pail.

Overview

3A8595A 17

4. When the platen exits the pail, release the blowoff

button and allow the elevator to rise to its full

height.

5. Remove empty pail.

6. Inspect the platen (D) and, if necessary, remove any

remaining material or material build–up. Keep

fingers away from the pump inlet.

7. Follow the procedure to Load Pails on page 14.

Shutdown and Care of the Pump

1. Set the elevator director valve (AD) to DOWN.

2. Follow the Pressure Relief Procedure on page 13.

3. Follow the pump shutdown instructions in separate

pump manual.

Material splatter may occur when blowoff pressure is

relieved between the pail lip and the perimeter of the

platen (D) as the platen exits the pail. Wear

appropriate protective equipment when in the work

area to help prevent serious injury from splashing

fluid.

FIG. 10

Pail Lip

Troubleshooting

18 3A8595A

Troubleshooting

Check all possible problems before disassembling the supply system. Refer to the Check-Mate Pump Packages

Instruction-Parts manual for pump troubleshooting and additional diagnostics. See Related Manuals on page 2 for

more information.

Elevator

Problem Cause Solution

Elevator will not raise or lower. Closed air valve or clogged air line. Open the air valve, or clear the

clogged air line/valve.

Not enough air pressure. Increase the elevator air pressure.

Worn or damaged elevator piston. Replace. See Supply Unit Repair

section in the Supply Systems

Repair-Parts manual.

Air assist/blowoff air closed or

clogged.

Open or clear the air assist/blowoff

air line.

Elevator raises too fast. Elevator air pressure is too high. Decrease the elevator air pressure.

Air leaks around cylinder rod. Worn rod seal on elevator. Replace. See the Supply Unit

Repair section in the Supply

Systems Repair-Parts manual.

Fluid squeezes past elevator plate

wipers.

Worn or damaged wipers on platen. Replace. See the Remove and

Reinstall Wipers section in the

Supply Systems Repair-Parts

manual.

Pump will not prime properly or

pumps air.

Closed air valve or clogged air line. Open the air valve, or clear the

clogged air line/valve to the air

motor.

Not enough air pressure. Increase pressure to air motor.

Worn or damaged pump piston. Replace. See pump manual.

Pump bleed valve closed or clogged. Open, clear. See the Platen

Maintenance section in the Supply

Systems Repair-Parts manual.

Platen bleed valve is dirty, worn, or

damaged.

Clean or service the platen bleed

valve.

Air assist valve will not push platen

up.

Closed air valve or clogged air line. Open, clear. See the Platen

Maintenance section in the Supply

Systems Repair-Parts manual.

Not enough air pressure. Increase air pressure.

Blowoff air passage on platen

clogged.

Clean. See the Platen Maintenance

section in the Supply Systems

Repair-Parts manual.

Dimensions

3A8595A 19

Dimensions

Weight

See the identification plate (ID) for the weight of your

supply system.

FIG. 11: Dimensions

(elevator

down)

(elevator

up)

Dimensions

A69 in. (1752.6 mm)

B44 in. (1117.6 mm)

C22 in. (558.8 mm)

D21 in. (533.4 mm)

Recycling and Disposal

20 3A8595A

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.

• Deliver remaining product to a recycling facility.

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Graco 3A8595A, L20c Single Post Elevator Owner's manual

Brand: Graco

Model: 3A8595A, L20c Single Post Elevator

Type: Owner's manual

Graco 3A8595A, L20c Single Post Elevator

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Graco 3A8595A, L20c Single Post Elevator Owner's manual

Graco 3A8595A, L20c Single Post Elevator Owner's manual

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