Graco 750 Series Manual de usuario

Instructions – Parts List

GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441

Series 750 Hose Reel

Model 245410, Series C

This reel is not to be used for overhead mount applications.

Low Pressure Fuel Dispense Reel: 375 psi (2.59 MPa, 25.9 bar) Maximum Working Pressure

309442 rev.E

Read warnings and instructions.

TI1619c

Parts

2 309442E

Table of Contents

Warnings 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation

Typical Layout 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing a Hose 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjusting Spring Tension 7. . . . . . . . . . . . . . . . . . . . . . . .

Maintenance

Pressure Relief Procedure 8. . . . . . . . . . . . . . . . . . . . . . .

Replacing the Service Hose 8. . . . . . . . . . . . . . . . . . . . . .

Oiling the Hose Rollers 9. . . . . . . . . . . . . . . . . . . . . . . . . .

Service

Swivel 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Spring Canister 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reel Ratchet and Dog 11. . . . . . . . . . . . . . . . . . . . . . . . .

Parts Drawing 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts List 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Data 14. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dimensions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco Standard Warranty 16. . . . . . . . . . . . . . . .

Graco Information 16. . . . . . . . . . . . . . . . . . . . . . . .

309442E 3

Symbols

Warning Symbol

WARNING

This symbol alerts you to the possibility of serious

injury or death if you do not follow the instructions.

Caution Symbol

CAUTION

This symbol alerts you to the possibility of damage to

or destruction of equipment if you do not follow the

instructions.

EQUIPMENT MISUSE HAZARD

Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury.

DThis equipment is for professional use only.

DRead all instruction manuals, tags, and labels before operating the equipment.

DUse the equipment only for its intended purpose. If you are not sure, call your Graco distributor.

DDo not alter or modify this equipment. Use only genuine Graco parts and accessories. Modifying

parts can cause a malfunction and result in serious bodily injury.

DCheck equipment daily. Repair or replace worn or damaged parts immediately.

DDo not exceed the maximum working pressure of the lowest rated system component. Refer to

the Technical Data on page 14 for the maximum working pressure of this equipment.

DUse fluids and solvents that are compatible with the equipment wetted parts. Refer to the Tech-

nical Data section of all equipment manuals. Read the fluid and solvent manufacturer’s warn-

ings.

DDo not use hoses to pull equipment.

DRoute hoses away from traffic areas, sharp edges, moving parts, and hot surfaces. Do not

expose hoses to temperatures above 82_C (180_F) or below –40_C (–40_F).

DDo not lift pressurized equipment.

DComply with all applicable local, state, and national fire, electrical, and safety regulations.

DIf you are adding a service hose and dispensing valve to a bare hose reel, be sure you know the

maximum working pressure of all the components.

INSTRUCTIONS

WARNING

4 309442E

TOXIC FLUID HAZARD

Hazardous fluid or toxic fumes can cause serious injury or death if inhaled, swallowed, splashed in

the eyes, or splashed on the skin.

DKnow the specific hazards of the fluid you are using.

DStore hazardous fluid in an approved container. Dispose of hazardous fluid according to all

local, state and national guidelines.

DAlways wear protective eyewear, gloves, clothing, and a respirator as recommended by the fluid

and solvent manufacturer.

FIRE AND EXPLOSION HAZARD

Improper grounding, poor ventilation, open flames, or sparks can cause a hazardous condition and

result in a fire or explosion and serious injury.

DBe sure the entire fluid system is properly grounded. The hoses installed with these hose reels

must be electrically conductive. The hose reel is grounded by connecting electrically conductive

supply hoses to a properly grounded system. Refer to your pump instruction manual for com-

plete details.

DIf there is any static sparking or you feel an electric shock while using this equipment, stop

dispensing immediately. Do not use the equipment until you identify and correct the problem.

DProvide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being dispensed.

DKeep the dispensing area free of debris, including solvent, rags, and spilled gasoline.

DDo not smoke while dispensing flammable fluids.

WARNING

309442E 5

Installation–Typical Layout

The installation shown in Fig.1 is only a guide for

selecting and installing a hose reel system. The

components and accessories shown are the minimum

requirements for all systems; however, it is not an

actual system design. Contact your Graco distributor

for assistance in designing a system to suit your

needs.

WARNING

Never allow the reel to spin freely. Doing so

causes the hose to spin out of control, which could

cause serious injury if you are hit by the hose.

CAUTION

A flexible hose connection must be used between

the hose reel inlet and the source of supply to pre-

vent possible misalignment and binding.

WARNING

This hose reel is intended for floor-mounted

applications only. Do not install this reel in an

overhead mounting.

KEY

A Main air supply line

B Pump air supply line

C Air filter

D Air regulator

E Bleed-type master air valve (required)

F Pump

G Pump grounding wire (required)

H Thermal relief valve (required)

J Dump valve (required)

K Fluid shut–off valve

M Hose reel

N Dispensing valve

P Mounting channel/base

Q Flexible inlet hose

R Pressure relief valve (required to limit fluid outlet

pressure to 50 psi [350 kPa, 3.5 bar])

Fig. 1

NOTE: Parts are not proportional.

1Fluid from the relief valve (R) must be

vented to a safe area.

CDE

TI1622d

6 309442E

Installation–Hose

To install a hose on a hose reel with the proper amount

of spring tension, follow these steps:

WARNING

Improper grounding can cause a hazardous

condition and may result in fire or explosion and

serious injury. The hoses installed with this reel

must be electrically conductive.

WARNING

Always wear heavy, non-slippery gloves when

adjusting the spring tension to protect your hands

from being cut on the hose reel.

1. Clamp the hose reel to a flat surface.

2. Place a piece of tape on the side of the reel flange

as a visual reference point for counting reel rota-

tions.

3. Unlatch the reel drum, and allow it to slowly rotate

until all spring tension has been released. Then

rotate the reel in the direction of the arrow shown

in Fig. 2 to achieve the proper amount of spring

tension for the hose you are installing, approxi-

mately 14–15 turns.

NOTE: Release the reel only at points where it is

securely latched.

4. Attach a C-clamp to the reel flange, as shown in

Fig. 2, to help prevent the reel from unintentionally

becoming unlatched and spinning freely.

WARNING

Never allow the reel to spin freely. Doing so

causes the hose to spin out of control, which could

cause serious injury if you are hit by the hose.

5. Uncoil and extend the new hose, and loosely

install the hose stop (25) near the outlet end of the

hose.

6. Attach the other end of the new hose to the

90-degree elbow.

7. Remove the C-clamp from the reel flange.

8. Pull the hose firmly enough to release the latch,

then slowly allow the hose to retract.

9. Ensure that the hose can be pulled out all the way

and that it fully retracts. If it does not pull out or

retract properly, see Adjusting Spring Tension

on page 7.

10. Position the hose stop (25) so that the hose ex-

tends far enough for all operators to reach the

dispensing valve.

Fig. 2

C-clamp

ti1625d

309442E 7

Installation–Adjusting Spring Tension

If the hose cannot be pulled out all the way, or if it does

not retract all the way back onto the hose reel, you

need to adjust the spring tension. To do so, follow

these steps:

WARNING

Always wear heavy, non-slippery gloves when

adjusting the spring tension to protect your hands

from being cut on the hose reel.

1. Pull the hose out and engage the latch.

2. Remove the dispensing valve (not shown) and the

hose stop (25). See Fig. 3.

3. Pull the loose end of the hose back in through the

hose rollers, and manually wrap the hose onto the

reel.

4. Rotate the reel in the direction of the appropriate

arrow shown in Fig. 3, keeping the hose wrapped

on the reel. Each rotation of the reel increases or

decreases enough spring tension to retract or let

out approximately 5 ft (1.5 m) of hose.

5. Check the spring tension. The hose must pull out

fully and retract fully.

6. Repeat Steps 4 and 5 until you have the proper

amount of spring tension.

CAUTION

Do not increase the spring tension so much that the

spring winds up tightly before the hose is fully

extended. A spring that is wound too tightly stops

the reel from rotating before the hose is fully ex-

tended, which puts excessive strain on the hose and

reel spring and could damage the reel.

7. Reroute the hose through the hose rollers, and

reinstall the hose stop and dispensing valve.

Fig. 3

1Position hose stop (25) within operator’s reach.

increase

tension

decrease

tension

TI1624c

8 309442E

Maintenance

Pressure Relief Procedure

WARNING

The system pressure must be manually relieved to

prevent the system from dispensing accidentally.

To reduce the risk of an injury from injection,

splashing fluid, or moving parts, follow the Pres-

sure Relief Procedure whenever you

DAre instructed to relieve the pressure

DStop dispensing

DCheck or service any of the system equipment

DInstall or clean the dispensing valve

1. Close the supply pump’s bleed-type master air

valve (required in pneumatic systems).

2. Open the dispensing valve until pressure is fully

relieved.

3. Open the dump valve at the pump fluid outlet, and

leave it open until you are ready to use the system

again.

If you suspect that the dispensing valve or extension is

clogged or that pressure has not been fully relieved

after following all the steps above, very slowly loosen

the coupler or hose end coupling, and allow pressure

to be relieved gradually, then loosen the part com-

pletely. Then clear the clog.

Replacing the Service Hose

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow

the Pressure Relief Procedure at left.

1. Relieve the pressure if you are replacing the

service hose on a reel that is already truck-

mounted. Then go to Step 3. Otherwise, start at

Step 2.

2. Clamp the hose reel to a flat surface if you are

replacing the service hose on a reel that is not

mounted anywhere.

3. Fully extend the hose and latch the reel.

4. Attach a C-clamp to the reel flange to help prevent

the reel from unintentionally becoming unlatched

and spinning freely. See Fig. 4.

309442E 9

Maintenance

WARNING

Never allow the reel to spin freely. Doing so

causes the hose to spin out of control, which could

cause serious injury if you are hit by the hose.

5. Disconnect the service hose from the 90-degree

elbow, and remove it.

6. Uncoil and extend the new hose, and install the

hose stop (25) near the outlet end of the hose.

7. Attach the other end of the new hose to the

90-degree elbow.

8. Remove the C-clamp from the reel flange.

9. Pull the hose firmly enough to release the latch,

then slowly allow the hose to retract.

10. Position the hose stop (25) so the hose extends

far enough for all operators to reach the dispens-

ing valve.

Fig. 4

C-clamp

TI1625e

Oiling the Hose Rollers

Every six months, apply one or two drops of light

motor oil to lubricate the hose reel at point A. See

Fig. 5.

Fig. 5

TI1626A

10 309442E

Service

Swivel and Bearings

WARNING

To reduce the risk of serious injury whenever you

are instructed to relieve pressure, always follow

the Pressure Relief Procedure at left.

1. Relieve the pressure.

2. Remove the 90_inlet adapter (24) (see Fig. 6).

3. Lubricate the shaft and bearing surfaces with

high-quality grease. Bearings are fitted with grease

zerks and require periodic lubrication.

4. Install the parts as shown in Fig. 6. Fig. 6

TI1628c

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