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Maintenance

Thorough flushing and proper maintenance are
essential to keep the sprayer working properly
and avoid costly damage to the sprayer or the ob-
ject being sprayed.

Diaphragm Failure: Always replace the diaphragm
after every 500 hours of operation (once every 4 to 6
months). The diaphragm weakens with use. If the
diaphragm ruptures, hydraulic oil and paint may mix,
damaging the sprayer and/or the surface of the object
being sprayed may be damaged.

Follow the Maintenance Intervals outlined below.

CAUTION

Maintenance Intervals

Flushing

Immediately after each use.

Lubricate the intake valve.

Immediately after each use.

Tighten the paint pump
screws and the inlet valve.

1. After the first 3 to 5 hours of
operation.

2. After the next 3 to 5 hours
of operation.

3. Each 25 hours thereafter
(about weekly).

Check or change the hydrau-
lic oil.

1. Check the oil after each
use of the sprayer.

2. Change the oil after the first
20 hours of operation.

3. Change the oil each 50
hours thereafter (about twice
monthly).

Replace the diaphragm.

After every 500 gallons of
paint sprayed (4 to 6 months).

 Flushing Procedure

1.

Shut off the sprayer. Lock the gun trigger safety le-
ver. Open the bypass valve ONE turn counterclock-
wise
. Raise the paint pump just above the paint and
turn on the sprayer to drain the paint. Now turn off the
sprayer. See Fig. 7.

2.

Place the paint pump in a grounded flushing pail of
solvent.

3.

Check to be sure the trigger safety lever is locked.
Remove the spray tip from the gun. Unlock the safety
lever. Hold a metal part of the gun firmly to the side
of a grounded metal pail. Close the bypass valve.
Trigger the gun into the pail. Turn on the sprayer.
Watch the side of the pail for solvent to appear. Then
release the gun trigger. Turn off the sprayer.

4.

With the bypass valve closed, turn on the sprayer,
trigger the gun into the flushing pail and allow the sol-
vent to circulate through the hose and gun for two to
three minutes, using the lowest possible pressure.
See Fig. 8. Release the gun trigger and lock the safe-
ty lever. Turn off the sprayer.

Fig. 7


Decrease pressure 
(counterclockwise).

Increase pressure (clockwise).

Open (counterclockwise).

Close (clockwise).

66

4

11

Maintain firm metal–
to–metal contact
between gun and
container

Fig. 8

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Содержание 218-501

Страница 1: ...ies E Basic Sprayer without hose or gun Model 218 501 Series C Complete Sprayer with hose and gun U S Patent No 4 616 982 U K Patent No 2 165 591 Other Foreign Patents Pending Always Professional Results GRACO INC P O BOX 1441 MINNEAPOLIS MN 55440 1441 COPYRIGHT 1995 GRACO INC Graco Inc is registered to I S EN ISO 9001 This manual contains important warnings and information READ AND RETAIN FOR REF...

Страница 2: ...o apply to your sprayer Apply the label at A for the best visibility Order the labels directly from your Graco distributor without charge A Liquids can be injected into the body by high pressure airless spray or leaks especially hose leaks Keep body clear of the nozzle Never stop leaks with any part of the body Drain all pressure before removing parts Avoid accidental trig gering of gun by always ...

Страница 3: ...lic fluid to operate the dia phragm Diaphragm The diaphragm 21 separates the hydraulic and paint portions of the paint pump Hydraulic oil causes the dia phragm to move up and down almost 30 times per sec ond no matter what pressure you are spraying at Pressure Control Knob The paint pressure is regulated by turning the pressure control knob 4 clockwise to increase the pressure and counterclockwise...

Страница 4: ...ment daily Repair or replace worn or damaged parts immediately Do not exceed the maximum working pressure of the lowest rated system component Refer to the Technical Data on page 24 for the maximum working pressure of this equipment Use fluids and solvents which are compatible with the equipment wetted parts Refer to the Tech nical Data section of all equipment manuals Read the fluid and solvent m...

Страница 5: ... injury Get immediate medical attention Do not point the gun at anyone or at any part of the body Do not put your hand or fingers over the spray tip Do not stop or deflect leaks with your hand body glove or rag Do not blow back fluid this is not an air spray system Always have the tip guard and the trigger guard on the gun when spraying Check the gun diffuser operation weekly Refer to the gun manu...

Страница 6: ...eep the spray area free of debris including solvent rags and gasoline Electrically disconnect all equipment in the spray area Extinguish all open flames or pilot lights in the spray area Do not smoke in the spray area Do not turn on or off any light switch in the spray area while operating or if fumes are present Do not operate a gasoline engine in the spray area WARNING WARNING MOVING PARTS HAZAR...

Страница 7: ...sary with lightweight hy draulic oil use only Graco Hydraulic Oil Part No 218 797 Install the fill cap See Fig 1 5 Check the electrical service which must be 120 V 60 HzAC 15 Amp minimum Be sure the electrical outlet is properly grounded You can use up to 100 ft 30 m of 3 wire 14 gauge minimum extension cord Longer exten sion cords may affect the sprayer performance Use more spray hose not longer ...

Страница 8: ...letely clogged or that pressure has not been fully relieved after following the steps above VERY SLOWLY loos en the tip guard retaining nut or hose end coupling to relieve pressure gradually then loosen completely Now clear the tip or hose obstruction 1 Open the bypass valve 66 ONE turn counter clockwise Do not place the pump intake in the pail yet See Fig 3 2 Turn the pressure control fully 4 clo...

Страница 9: ...safety lever to prevent acciden tally trigger the gun 9 Whenever you stop spraying for more than a mo ment or if you must leave the sprayer unattended shut it off and follow the Pressure Relief Procedure on page 8 NOTE The sprayer will not restart if it was left pressur ized after shutting it off Relieve pressure then start the sprayer Fig 5 Lubricate the threads Torque to 170 200 in lb 19 23 N m ...

Страница 10: ...obstruction from the tip Lock the safety lever 15 Return the handle to the original position unlock the safety lever and resume spraying Fig 6 16 If the tip is still clogged lock the trigger safety lever shut off and unplug the sprayer and open the bypass valve one turn counterclockwise Disassemble the tip in the reverse order of assembly see manual 307 848 Thoroughly clean all parts in a compatib...

Страница 11: ... Notes ...

Страница 12: ...phragm After every 500 gallons of paint sprayed 4 to 6 months Flushing Procedure 1 Shut off the sprayer Lock the gun trigger safety le ver Open the bypass valve ONE turn counterclock wise Raise the paint pump just above the paint and turn on the sprayer to drain the paint Now turn off the sprayer See Fig 7 2 Place the paint pump in a grounded flushing pail of solvent 3 Check to be sure the trigger...

Страница 13: ...the inlet valve Lubricate the Inlet Valve See Fig 9 1 Follow the Pressure Relief Procedure on page 8 Remove the inlet screen 2 Turn the sprayer over Press down lightly on the stem A of the inlet valve 26 with a small screwdriver Pour about a teaspoon of mineral spirits or solvent into the valve then remove the screwdriver 3 Set the sprayer upright Increase the pressure con trol setting half way Tu...

Страница 14: ...To change the oil turn the sprayer over and drain the oil through the fill cap hole Whenever you remove the fill cap be very careful not to let any dirt paint particles or other contaminants get into the hydraulic system Contaminants can cause damage to the hydraulic system CAUTION 4 Fill the hydraulic pump housing with 16 5 ounces 55 ml of Graco lightweight hydraulic oil Reinstall the fill cap 5 ...

Страница 15: ...307 711 15 Notes ...

Страница 16: ...ng the fluid pressure Using the lowest pressure necessary to get the results you want will help prolong the life of your sprayer and minimize paint lost by overspray For interior corners such as on a bookcase or inside a cabinet aim the gun toward the center of the corner to spray By dividing the spray pattern this way the edges on both sides are sprayed evenly See Fig 14 Fig 14 If there is a wind...

Страница 17: ... between needle and diffuser Disassemble and clean gun Spray gun leaks Worn seal or loose fluid fitting Repair gun order Kit no 218 588 tighten fluid fitting Spray gun won t spray or low output from gun Paint supply empty Refill and reprime system Spray tip clogged Use Reverse A Clean feature to clear tip clog see page 10 Gun filter if used is clogged Clean or replace Sprayer will not start Spraye...

Страница 18: ...int pump Replace Sprayer sucks paint builds pres sure but pressure drops when gun No spray tip on gun Shut off sprayer and install tip sure but pressure drops when gun is triggered Spray tip orifice too large for the paint or worn tip Try a smaller tip or a new tip Inlet screen clogged Clean Optional gun filter clogged Clean or replace Optional gun filter screen too fine for type of paint Install ...

Страница 19: ...rmance problems CAUTION 6 Install the housing 28b and torque to 14 17 N m 7 The last coil on one end of the spring is turned in Place this end over the stud in the plug 28d Install the ball 28e washer 28f and plug and torque to plug to 32 34 N m Pressure Control See Fig 15 When removing the pressure control 4 to check or clean it always replace the seal 4a When replacing the pres sure control torq...

Страница 20: ...Plug in the sprayer and turn it on Run the sprayer for two minutes to fill the hydraulic sys tem Increase the pressure to maximum and turn the sprayer on and off four times to help rid the hydraulic system of air Fig 15 21 22a 22b 26a 26 27 25 24 28d 28f 28c 28e 28b 28a C 4 4a 38 37 36 66 35 3 67 20 28 18a Torque to 125 150 in lb 14 17 N m Apply sealant to the threads Lubricate the internal thread...

Страница 21: ... the threads Torque to 40 45 in lb 54 60 N m Torque to 130 140 in lb 15 16 N m Apply PTFE tape to the top and bottom threads See Detail A page 23 Torque to 70 90 in lb 8 10 N m The tube must drop freely in the pipe 1 Apply sealant to the threads The seal in the bearing must face down Apply thread sealant to the motor tie bolts See Detail B on page 23 83 Model 223 635 Series C with a hose and a gun...

Страница 22: ...NG compression 1 45 180 479 PISTON 1 46 180 480 WASHER spring 1 47 107 517 RING retaining external 1 48 107 524 RING retaining external 1 49 107 513 KEY woodruff 1 50 218 909 ECCENTRIC ASSY 1 52 108 042 SCREW oval head M4 x 14 0 8 53 180 650 GASKET housing 1 54 107 518 BEARING ball 1 Ref No Part No Description Qty 55 107 519 SEAL shaft 1 56 108 288 CAPSCREW sch M6 x 16 3 57 108 165 PACKING o ring ...

Страница 23: ...LVE inlet check Includes replaceable item 26a 1 26a 180 446 GASKET 1 28 236 954 OUTLET CHECK VALVE ASSY Includes items 28a 28f 1 28a 180 455 SEAL washer 1 28b 218 968 HOUSING seat valve 1 28c 112 619 SPRING compression 1 28d 218 505 PLUG ball stop 1 28e 112 618 BALL carbide 1 28f 180 454 WASHER 1 10 12 11 15 Ref 17 DETAIL B BLACK WHITE GREEN 18a The starter switch is located in this box 20 21 22a ...

Страница 24: ...s The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above The buyer agre...

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