Graco 255751 Manuale utente

Instructions

LDM5 (Standard) & LDP5 (Preset)

Electronic Metered Dispense Valves 312668D

- For metered dispense of oils and antifreeze -

Not for use in explosive atmosphere locations.

1000 psi (7 MPa, 69 bar) Maximum Working Pressure

5 gpm (19 lpm) Maximum Flow Rate

LDM5 Model 255751: Includes Flex Extension

LDM5 Model 256215: Includes Rigid Extension, Impact

Guard, Swivel Cover

LDP5 Model 255277: Includes Flex Extension

LDP5 Model 256216: Includes Rigid Extension, Impact

Guard, Swivel Cover

Patent Nos.

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

6,357,300* 77664

D382,500 ZL97102971.7*

6,047,906 1025804

*Applies to LDP5 Preset Electronic Dispense Valve Only

NOTICE

This dispense valve:

• is designed to dispense petroleum-based lubricants

and antifreeze only. Do not dispense windshield

washer solvent with this dispense valve.

• is designed for indoor use only.

•isnot designed for in-line installation.

LDM5 Model 256215

LDM5 Model 255751 LDP5 Model 255277

LDP5 Model 256216

ti12062a

ti12063a

ti12064a

ti12065a

Warnings

2312668D

Warnings

The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-

tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back

to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where

applicable.

WARNING

SKIN INJECTION HAZARD

High-pressure fluid from dispense valve, 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 dispense valve at anyone or at any part of the body.

• Do not put your hand over the end of the dispense nozzle.

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

• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,

checking, or servicing equipment.

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 Data in all equipment manuals.

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

equipment manuals. Read fluid and solvent manufacturer’s warnings. For complete information

about your material, request MSDS forms from distributor or retailer.

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

facturer’s replacement parts only.

• Do not alter or modify equipment.

• 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.

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.

• 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.

• Ground all equipment in the work area.

• Use only grounded hoses.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment

until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

Installation

312668D 3

Installation

Typical Installations

FIG. 1 shows a typical hose reel installation. Dispense

valves can also be installed on a console as shown in

Fig. 2.

The typical installation shown in Fig. 1 is only a guide. It

is not a complete system design. Contact your Graco

distributor for assistance in designing a system to suit

your needs.

Mounting Bracket

Mounting bracket 196471 is available for resting dis-

pense valve on a console. See Fig. 2.

KEY DESCRIPTION

A Metered dispense valve

B Fluid shut–off valve

CHose

D Hose reel fluid inlet hose

E Hose reel

A Thermal Relief Kit (not shown) is required. The kit

will vary by pump selected. See Parts, page 26 for a

list of available kits.

FIG. 1

ti12081a

NOTICE

• Do not use this dispense valve on non-Graco con-

soles. The trigger could be inadvertently pressed

while the dispense valve is stowed.

• This dispense valve is not designed for in-line

installation. Do not install with a shut-off valve on

the outlet side of the meter which could damage the

meter housing cover.

NOTICE

Do not obstruct the dispense valve trigger and do not

set the unit down resting on its trigger or it might not

stop dispensing.

FIG. 2

mounting

bracket

196471

ti0274

Installation

4312668D

Pressure Relief Procedure

The equipment stays pressurized until pressure is man-

ually relieved. To reduce the risk of serious injury from

pressurized fluid, accidental spray from the dispense

valve, or splashing fluid, follow this Pressure Relief

Procedure when you:

• are instructed to relieve pressure.

• check, clean, or service any system equipment.

• install or clean fluid nozzles or filter.

1. Turn off the 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 you are ready to

pressurize the system.

Grounding

Proper grounding is an essential part of maintaining a

safe system. The movement of fluids through the dis-

pensing system generates static electricity. Static elec-

tricity can cause fumes to ignite, resulting in explosion

and fire. To reduce the risk of static sparking, ground all

system components per local and national electrical

codes. Refer to user manuals for pump and other sys-

tem components to ground the following:

•Pump: Follow manufacturer’s recommenda-

tions.

•Air and Fluid hoses: Use only grounded

hoses.

•Air compressor: Follow the manufacturer’s

recommendations.

•Fluid supply container: Follow the local code.

To maintain grounding continuity when flushing or

relieving pressure, always hold a metal part of valve

firmly to side of grounded metal pail, then trigger valve.

Pre–Installation Procedure

1. Install the battery. See Replacing the Battery on

page 28.

2. Follow the Pressure Relief Procedure.

3. Close the shut–off valve (B, FIG. 1, page 3).

4. Ground the hose and reel or console. See

Grounding.

Installation Procedure

If this is an existing installation, go to step 7. Steps 1 - 6

are the Flushing Procedure.

1. Close the fluid shutoff valve (B, FIG. 3) at each dis-

pense position.

2. Make sure:

• the main fluid outlet valve at the pump is closed,

• the air pressure to the pump motor is adjusted,

• the air valve is open.

3. Slowly open main fluid valve.

Leave a minimum of two engaged threads bare

when using PTFE tape. The bare threads ensure a

ground is maintained.

NOTICE

If this is a new installation or if there is contaminated

fluid in the lines, flush the lines before you install the

metered valve. Contaminated lines could cause the

valve to leak.

FIG. 3

ti12081a

Installation

312668D 5

a. Place the hose end (with no dispense valve

connected) into a container for waste oil.

b. Secure the hose in the container so it will not

come out during flushing.

c. If you have multiple dispense positions, first

flush the dispense position farthest from the

pump, then work your way toward the pump.

5. Slowly open the shut–off valve (B, FIG. 4) at the dis-

pense position. Flush out a sufficient amount of oil

to ensure that the entire system is clean. Close the

valve.

6. Repeat step 5 at all other dispense positions.

Connecting Hose to Meter

1. Follow the Pressure Relief Procedure, page 4.

2. Slide the swivel cover (34) onto the hose, small end

first, before connecting hose fitting to swivel (4) (FIG.

5).

3. Apply thread sealant to the male threads of the hose

fitting. Thread the hose fitting into the swivel (4) and

tighten firmly (FIG. 5).

FIG. 4

ti12081a

FIG. 5

Make sure you let sealant cure to the manufac-

turer’s recommendations before you let fluid into

the system.

hose

fitting

ti0269

Installation

6312668D

Installing Extension and Nozzle on Meter

1. Thread the fitting (26c) onto the extension (26a).

2. Thread extension fitting (26c) into meter outlet at

least three full turns. (FIG. 6).

3. Thread new nozzle (26b) onto extension. With an

open-end, adjustable wrench, tighten it firmly.

4. Open all dispense position shut-off valves (B, FIG. 7)

and start the pump to pressurize the system. See

Operation, (LDM5 Meters - page 11; LDP5 Meters -

page 20), for proper operation of meter.

• To ensure dispensing accuracy, purge all air

from the fluid lines and dispense valve before

you use it.

• Set the system flow to the desired flow rate,

which is typically 1.5 gpm. Do not exceed a

5-gpm flow rate.

FIG. 6

NOTICE

Do not use a twist/lock or manual shut-off nozzle. You

must use an automatic nozzle on the meter or the

meter could be damaged.

Only tighten nozzle with the wrench on the flats of

the nozzle bushing. Do not disassembly the

bushing from the nozzle. Disassembly will affect

the performance of the nozzle.

26c

26a

26b

26c

26a

26b

ti12063a

ti12062a

FIG. 7

ti12081a

LDM5 Meter Setup and Operation Instructions

312668D 7

LDM5 Meter Setup and Operation Instructions

Setup

Terms

The following terms are shown on the display and/or

used often in this instruction manual.

•R-TOTAL: Resettable Total

Shows the cumulative amount that has been dis-

pensed. Can be reset to zero.

•TOTAL: Non–Resettable Total

Shows the cumulative amount that has been dis-

pensed for the life of the unit. Cannot be reset.

•Standard Dispense Mode

Dispense mode in which display counts up from

zero or from where it recently stopped.

•ASLEEP / AWAKE Mode

Asleep is a battery–saving mode in which the dis-

play goes blank after 45 seconds of inactivity. The

display comes Awake from sleep mode when you

press any button on the keypad or squeeze the trig-

ger to dispense fluid.

Keypad Buttons (FIG. 8)

•TOTAL*

Displays the resettable total, non–resettable total,

and calibration factor.

•RESET*

Resets the displayed amount to zero or press to

enter the Standard Dispense Mode (see Terms).

* Press the hold Reset and Total

buttons simultaneously to dis-

play Setup Menus (page 8).

FIG. 8

All buttons are disabled while fluid is being

dispensed.

GAL

QTSPTS

LITERS

R-TOTAL

AUTO

ti12043A

LDM5 Meter Setup and Operation Instructions

8312668D

Setup Menus (FIG. 9)

1. If the display is blank (asleep), wake it up by press-

ing any button on the keypad (FIG. 9).

2. Press and hold the Total and

Reset buttons simultaneously

for approximately six (6) sec-

onds to enter the Setup

Menus (FIG. 9).

There are three (3) Setup Menus available, stored in

a preset order.

a. The first screen displayed is the Resettable

Total Menu. When this menu is displayed,

R-TOTAL will blink on the screen (FIG. 10).

b. Press and hold Reset but-

ton to display Units of

Measure Menu. When

this menu is displayed the

last set Unit of Measure-

ment blinks on the screen

(FIG. 11).

c. Press and hold Reset button again to display

Calibration Menu. When this menu is displayed

CAL blinks on the screen (FIG. 12).

The total that is displayed when you leave each

menu is the total that is stored.

FIG. 9

During the first 4 seconds all segments display.

Then for 2 seconds the software version number

displays.

GAL

QTSPTS

LITERS

R-TOTAL

AUTO

ti12044a

The following sections of this manual provide

instructions for using the Setup Menus.

LDM5 Meter Setup and Operation Instructions

312668D 9

Resettable Total (FIG. 10)

Resets dispensed total on screen to zero or stores dis-

played dispense total. The resettable total accumulates

until the next time it is manually reset.

1. If Resettable Total Menu is not already displayed,

complete steps 1 and 2 of Setup Menus section.

2. R-TOTAL blinks indicating you are on the Resetta-

ble Total Menu. The currently stored total and unit of

measurement is displayed (FIG. 10).

3. Do ONE of the following.

a. Press and hold the Total

button. Resettable total is

set to zero (0).

0GAL/QTS/PTS or 0

LITERS is displayed.

b. Press and hold the Reset

button. The zero (0) total

is stored. Units of Mea-

surement Menu displays.

• Press and hold the Reset

button. The currently dis-

played total is stored. The

Units of Measurement

Menu displays.

Units of Measurement (FIG. 11)

Sets unit of measurement to quarts, gallons, pints, or

liters.

1. If the Units of Measurement Menu is not already dis-

played, complete steps 1 - 3 of the Setup Menus

section, page 8.

2. The currently stored unit of measurement: GAL,

QTS, PTS or LITERS blinks indicating you are on

the Units of Measurement Menu screen.

3. To change the unit of measurement, do ONE of the

following.

a. Press and hold Total but-

ton to display next unit of

measurement in the

sequence.

b. When measurement unit

you want to use is dis-

played, press and hold

Reset button. Display

advances to Calibration

Menu.

• Press and hold Reset but-

ton. The currently dis-

played measurement unit

is stored. The Calibration

Menu displays.

FIG. 10

GAL

QTSPTS

LITERS

R-TOTAL

Auto

ti12047a

FIG. 11

ti0272C

GAL

QTSPTS

LITERS

R-TOTAL

AUTO

ti12045a

LDM5 Meter Setup and Operation Instructions

10 312668D

Calibration (FIG. 12)

Recalibrates the meter for dispensing different fluids.

1. If the Calibration Menu is not already displayed,

complete steps 1 - 4 of the Setup Menus section,

page 8.

2. CAL blinks indicating you are on the Calibration

Menu screen. Do ONE of the following.

Use the current calibration.

• Press and hold Reset but-

ton to lock in amount. Dis-

play returns to the

Standard Mode.

Recalibrate meter as follows:

a. If the unit of measurement is gallons, pints,

or quarts, dispense exactly one quart of fluid

into a calibrated 1–quart container.

If the unit of measurement is liters, dispense

exactly one liter of fluid into a calibrated

1–liter container.

For proper calibration, you must dis-

pense the exact amount.

b. Press and hold Total

button until CAL stops

blinking.

c. When CAL starts to

blink again, the display

should show 1.00. The

new calibration is com-

plete.

3. Press and hold the Reset but-

ton. The unit returns to Stan-

dard Dispense Mode.

FIG. 12

GAL

QTSPTS

LITERS

R-TOTAL

CAL

ti12046a

If an error was made during meter recalibration,

repeat Steps a - c of the recalibration process to

recalibrate the meter again.

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