Graco 311209R User Manual

Download

Instructions - Parts

Hot Melt Dispense Guns

For dispensing non-flammable hot melt thermoplastic sealants and adhesives.

5000 psi (34.5 MPa, 345 bar) Maximum Working Pressure

See page 2 for model information.

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

311209R

ENG

Bottom feed model

Top feed model

r_249512_311209_1 r_249512_311209_2

Models

Contents

Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Connect Heated Hose . . . . . . . . . . . . . . . . . . . . . 5

Connect Electrical Cable . . . . . . . . . . . . . . . . . . . 5

Ground the System . . . . . . . . . . . . . . . . . . . . . . . 6

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 7

Trigger Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Heatup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Dispensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Models

Model 249514 Bottom Feed

Model 249512 Bottom Feed with Trigger Switch

Model 249515 Top Feed

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Install New Heater Cartridge(s), RTD Sensor, or

Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Inspection Frequency . . . . . . . . . . . . . . . . . . . . 13

Adjust Needle Assembly . . . . . . . . . . . . . . . . . . 13

Service Valve Stem and Seal . . . . . . . . . . . . . . 13

Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Swirl Assemblies . . . . . . . . . . . . . . . . . . . . . . . . 20

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 22

Model 249513 Top Feed with Trigger Switch

Model 297273 Top Feed with Swirl

Model 297274 Bottom Feed with Swirl

2 311209R

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 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

BURN HAZARD

Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns, do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic fumes, burns, and hearing loss. This equipment includes but is not limited to:

• Protective eyewear

• Clothing and respirator as recommended by the fluid and solvent manufacturer

•Gloves

• Hearing protection

ELECTRIC SHOCK HAZARD

Improper grounding, setup, or usage of the system can cause electric shock.

• Turn off and disconnect power cord before servicing equipment.

• Use only grounded electrical outlets.

• Use only 3-wire extension cords.

• Ensure ground prongs are intact on sprayer and extension cords.

• Do not expose to rain. Store indoors.

SKIN INJECTION HAZARD

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

• Do not put your hand over the spray tip.

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

• Engage trigger lock when not spraying.

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

checking, or servicing equipment.

311209R 3

Warnings

WARNING

FIRE AND EXPLOSION HAZARD

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

• 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.

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

• Use only grounded hoses.

• Hold gun firmly to side of grounded pail when triggering into pail.

• 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.

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 manufacturer’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.

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 MSDS’s 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.

MOVING PARTS HAZARD

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

• Keep clear of moving parts.

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

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure in this manual. Disconnect power or air supply.

4 311209R

Installation

Install gun as follows:

• connect material hose

• connect the electrical cable

• make sure the gun is grounded

Connect Heated Hose

1. Screw adapter onto gun swivel (A) and tighten securely.

Part No. Adapter Hose Size

120264 -8 JIC x -10 JIC -8

-- Not required -10 120265 -10 JIC x -12 JIC -12

2. Securely connect hose to gun swivel (A).

Connect Electrical Cable

1. Wrap hose cable around hose one time. Connect electrical cable from hose to gun cable; engage metal clip on top of connector.

FIG. 3: Connect Electrical Cable, Step 1

2. Place flat side of cable connection against hose, making sure metal clip faces away from hose. This will prevent damage to hose from clip rubbing against it.

. 1: Hose Gun Swivel

3. Wrap connection with insulating cuff (B) (119889).

. 2: Insulating Cuff

r_249512_311209_3

r_249512_311209_4

. 4: Connect Electrical Cable, Step 2

3. Fasten Velcro insulation wrap (198422) snugly around hose. Secure wrap with two Velcro straps (198442) on ends of wrap.

. 5: Connect Electrical Cable, Step 3

311209R 5

Installation

Ground the System

The following grounding instructions are minimum requirements for a basic dispensing system. Your system may include other equipment or objects that must be grounded. Check your local electrical code for detailed grounding instructions for your area and type of equipment. Your system must be connected to a true earth ground.

• Fluid hoses: use only grounded fluid hoses with a

maximum of 25 feet (7.5 m) combined hose length to ensure grounding continuity. Check electrical resistance of your fluid hoses at least once a week. If your hose does not have a tag on it that specifies the maximum electrical resistance, contact the hose supplier or manufacturer for the maximum resistance limits. If the hose resistance exceeds the recommended limits, replace it immediately.

• Gun: the gun is grounded by connecting it to the

properly grounded fluid hose and by a ground wire in the cable. Check ground continuity between the gun body and the heat control ground lug at least once a week.

• Fluid supply container: ground according to the

local code.

• Flammable liquids in the dispense area: must be

kept in approved, grounded containers. Do not store more than the quantity needed for one shift.

• All solvent pails used when flushing: ground

according to local code. Use only metal pails, which are conductive. Do not place the pail on a non-conductive surface, such as paper or cardboard, which interrupts the grounding continuity.

To maintain grounding continuity when flushing or relieving pressure: hold a metal part of the gun firmly to the side of a grounded metal pail, then trigger the gun. To reduce the risk of static sparking, ground the pump, object being dispensed to, and all other spraying/dispensing equipment used or located in the spraying/dispensing area. Check your local electrical code for detailed grounding instructions for your area and type of equipment.

6 311209R

Pressure Relief Procedure

1. Fully release gun trigger and engage gun trigger lock. See F

2. Shut off fluid supply pump.

3. Hold a metal part of gun firmly to side of a grounded metal waste container. Disengage gun trigger lock. See F

4. Fully release gun trigger and engage gun trigger lock. See F

. 6.

. 7. Trigger gun to relieve fluid pressure.

. 6.

Trigger Lock

Always engage trigger lock when you stop spraying to prevent gun from being triggered accidentally by hand or if dropped or bumped.

To engage trigger lock, release trigger and rotate lock downward. See F

Do not try to force trigger valve open with trigger lock engaged. This could result in component failure.

. 6: Trigger Lock Engaged

. 6.

Trigger Lock Engaged

r_249512_311209_5

5. Open pump drain valve to help relieve fluid pressure in pump, hose, and gun. Triggering gun to relieve pressure may not be sufficient. Have a container ready to catch drainage.

6. Leave drain valve open until you are ready to dispense again.

7. If you think the gun nozzle or fluid hose is completely clogged or that pressure has not been fully relieved after following the previous steps, very slowly loosen hose end coupling and relieve pressure gradually, then loosen coupling completely. Clear nozzle or hose obstruction

To disengage trigger lock, rotate it upward. See F

Trigger Lock Disengaged

r_249512_311209_6

. 7: Trigger Lock Disengaged

. 7.

311209R 7

Operation

Heatup

Heated fluid expands, causing a pressure rise in a closed system.

• Relieve pressure (page 7) before heating up equipment.

• Engage trigger retainer to hold gun open, to prevent excessive pressure buildup.

1. Turn ON electrical controls and main air to unit.

2. Lock dispense valve trigger open by pulling and securing trigger using trigger retainer (Z).

4. After pump, hose, and gun are up to temperature, release gun trigger retainer (Z) to close valve. Engage gun trigger lock to prevent accidental dispense of high pressure heated fluid.

r_249512_311209_8

Trigger Lock Engaged

. 8: Trigger Retainer Locked

3. Activate heat controls.

r_249512_311209_7

r_249512_311209_5

FIG. 9: Trigger Retainer Unlocked and Trigger Lock Engaged

8 311209R

Operation

Dispensing

1. Start pump. Fluid flow rate is controlled at pump. Adjust pump pressure to obtain desired flow rate. Use lowest pressure necessary to dispense fluid. The pressure adjustment depends on hose length, fluid viscosity, and nozzle size.

2. Disengage gun trigger lock.

Trigger Lock Disengaged

r_249512_311209_6

. 10: Trigger Lock Disengaged

3. Squeeze trigger in all the way. Fluid flow begins with the slightest pressure on trigger and stops when trigger is released.

Shutdown

1. Turn off all heat at controller.

2. Shut off fluid supply pump.

3. Trigger gun to relieve pressure while system is still hot.

4. With gun over a waste container, hold trigger open by securing with trigger retainer (Z).

TI8051

r_249512_311209_7

FIG. 11: Trigger Retainer Locked

311209R 9

Troubleshooting

Some solutions require disassembling gun. Always relieve system pressure and disconnect electrical cable before performing these procedures.

Problem Cause(s) Solution(s)

Material leaks from front of gun body Seat or packing is worn

Replace seat (6) or packing (47).

Obstruction inside gun

Worn needle

Material leaks from back of gun body Needle seal or packing is worn Replace seals (4c) or packing (4d).

Gun does not shut off Needle or seat is worn

Spring is broken or not installed correctly

Obstruction inside gun

Gun does not heat material Loose heater wires

Loose sensor wires

Heater cartridge failed

Sensor failed

Temperature controller failed

No power to heating circuitry

Remove seat (6). Check and replace if necessary.

Check and replace needle (4a) if necessary.

Replace needle (4a) or seat (6).

Check and replace spring (14) if necessary.

Remove seat (6). Check and replace if necessary.

Check and reconnect wire connections.

Replace failed heater.

Replace failed sensor.

Refer to Therm-O-Flow 311208 as appropriate.

200 manual

10 311209R

Service

Install New Heater Cartridge(s), RTD Sensor, or Switch

After adjusting or servicing gun, ensure that fluid will not trigger on when trigger lock is engaged. If fluid does flow, gun is not assembled correctly or trigger lock is damaged. Reassemble gun or return it to your nearest Graco distributor. Do not use gun until the problem is corrected.

1. If fluid continues to flow after trigger is released:

• gun valve may need adjustment,

• gun valve may be obstructed or damaged,

• needle assembly (4) or seat (6) may be worn or damaged.

Replace needle assembly (4) or seat (6) as instructed on page 13.

2. Use Repair Kit 253553 for Manual Hot-Melt Guns 249512, 249513, 249514, 249515, 297273, and

297274.

1. Remove covers (9 and 16).

2. Pull terminal blocks (36) and insulation displacement connectors (IDC) (38) out of handle. Loosen the screw in the terminal block or cut off the IDC to disconnect lead wires of failed components.

3. Gently slide new heater(s) or sensor into appropriate hole.

4. Feed new wires through conduit to the correct terminal block or IDC. If using a terminal block, cut wires to length and strip insulation before connecting.

If using an IDC, insert one new RTD wire and one yellow wire through the IDC holes until the ends can be seen in the window on the opposite side. Use pliers to press down insert, then close the IDC cover.

When replacing switch (51) ensure tube (53) protrudes from the back of the handle with its end near the center of the switch body. Gently push wires through the tube into the gun handle. See F

. 12.

FIG. 12

5. Replace covers (9 and 16).

r_249512_311209_9

311209R 11

Service

6. See FIG. 13. Use an ohm meter to check:

a. Heater pins 1 to 2, 445 +/- 35 .

b. RTD sensor pin 3 to 4, 108 +/-1 at 70°F

(21°C).

All models except

249514 and

249515

All

Models

FIG. 13: 8 Pin, 240 Volt Shown

{

ΩΩ

{

c. Continuity to gun body from pin 8.

d. No continuity from pins 1-7 to gun body or con-

nector shell, or ground pin 8.

12 311209R

Service

Inspection Frequency

Dispense Valve

Inspect dispense valve at every use for leakage or other visible damage.

Heater

Every two weeks, check heater for proper resistance. Resistance should be approximately 890 ohms, +/- 70 ohms for the 240V valves. Replace heater if necessary.

Also inspect heater when performing regular maintenance procedures.

Sensor

Every two weeks, check sensor resistance. Resistance should be 108 ohms at 70° F (21° C). Replace sensor if necessary.

Also inspect sensor when performing regular maintenance procedures.

4. Trigger gun and use a 1/8 in. open-end wrench on flats of needle to turn needle (4a) clockwise one turn as viewed from handle end of gun.

5. Release trigger; a slight free play of the trigger handle should occur.

6. Repeat Step 4 until free play occurs.

7. Tighten hex nut (4g) to lock the adjustment.

Service Valve Stem and Seal

If fluid leaks past seal (4c), the seal or needle (4a) may be worn or damaged. To replace seal or valve stem, use the following procedure.

1. Relieve pressure in system.

2. Disconnect gun from hose.

Adjust Needle Assembly

The trigger travel and corresponding valve opening are factory set. To adjust this setting, use the following procedure.

1. Relieve pressure in system.

2. Disconnect gun from hose.

3. Use 11/32 in. wrench to loosen hex nut (4g).

3. Remove cover (16), and then slide heater cartridge and sensor cartridge out of body (2).

4. Loosen needle nut.

5. Remove screws (33).

6. Unscrew needle with body from yoke.

7. Remove seal-cartridge assembly from body and replace seals and/or needle. Repack grease area of packing nut prior to reassembly.

8. Reassemble in reverse order and follow Adjust Needle Assembly, page 13.

311209R 13

Parts

Models 249514 and 249512, Hot Melt Guns

Model 249512 Only

Model 249514 Only

FIG. 14: Models 249514 and 249512, Hot Melt Guns

14 311209R

r_249512_311209_10

Parts

Model 249514 Manual Hot Melt Gun, Bottom Feed, Extrude, No Switch

Model 249512 Manual Hot Melt Gun, Bottom Feed, Extrude, with Switch

Ref. No. Part No. Description Qty

1 15G017 HANDLE 1 2 15X297 BODY, gun 1 3 15G006 SPACER, thermal, isolator 1 4◆ 287734 NEEDLE, assy, includes 4a-4j 1 4a 15G531 NEEDLE 1 4b C27053 SUPPORT, packing 1 4c* C27060 SEAL, needle 3 4d* 103338 PACKING, o-ring 1 4e 15F993 NUT, packing 1 4f 15F991 SCREW, adjustment 1 4g C19284 NUT, hex 1 4h 15F997 YOKE, gun 1 4j* 106560 PACKING, o-ring 1 5RETAINER, spring

C27037 Model 249514 1

15G004 Model 249512 1 6◆ 15G001 ADAPTER, seat 1 7 C32003 NOZZLE 1 8 287736 SWIVEL, assy (inline with stop) 1 9 15G018 COVER, gun handle 1 10 119876 CONDUIT, flex 1 11† C27036 NUT, lock 1 12 116673 BUSHING, strain relief 1 13 116637 CONNECTOR, cable coupler hood 1 14 C00020 SPRING 1 15 115860 INSERT, male 1 16 15F989 COVER, gun wires 1 17 C27051 TRIGGER, gun 1 18 15G022 TUBE 1 19 C32368 RING 1 20 119889 COVER, swivel 1 21 C32255 SENSOR, temperature 1 22 122334 CARTRIDGE, heater 2 23 C34009 TRIGGER, lock 1 24 15X116 PIN, trigger 3 25 C19950 SCREW, Cap 3 26 15G020 HANGER 1 27 15G121 WASHER, gun 1 28❄ 065337 WIRE, copper, electric 1 29 115862 CONNECTOR, male, crimp

Model 249514 1 Model 249512 1

Ref. No. Part No. Description Qty

30 C78160 TERMINAL 1 31 122340 SCREW, shoulder, socket hd. 2 32 122337 SCREW, cap, socket button hd. 5 33 124779 SCREW, cap, socket hd. 2 34 108483 SCREW, shoulder 1 35 C20565 WASHER, spring washer 1 36 15X093 BLOCK, terminal 2 37 102975 SCREW, 6-32 x .25 1 38 122341 CONNECTOR, pigtail, IDC 2 39‡❄ C07535 TUBE, heat shrink 1 40❄ C34137 INSULATOR, fiberglass 1 41 122433 NUT, square 2 42❄ 065366 WIRE, silver-coated copper 1 43❄ C33049 TAPE, adhesive, fiberglass 1 44❄ 198422 COVER, protective 1 45❄ 198442 STRAP, retaining mix manifold 2 46 100272 WASHER, #6, internal lock 1 47*◆ 103610 PACKING, o-ring 1 48 116807 SCREW, 10-24 x .25 1 49❄ 617836 SLEEVE, fiberglass braid, #10 blk 2 50‡ 15G003 COVER, switch 1 51‡ C32370 SWITCH 1 52‡ 15G019 SPACER, cover mounting 1 53‡ 122335 TUBE, 1/4 O.D. 1 54‡ 102273 SCREW, set, 6-32 x .19 1 55‡ 122338 SCREW, cap, socket button hd. 3 57❄‡ 065379 WIRE, silver-coated copper,

orange

58❄ 065380 WIRE, silver-coated copper,

yellow 59 122339 WASHER, Belleville 4 60 157021 WASHER, lock 2

070269 SEALANT, anaerobic AR

61❄ 62 C19208 WASHER, lock 3 63❄ 101369 WRENCH, allen 1 64 CONNECTOR, male, crimp

116640 Model 249514 4 116640 Model 249512 6

* Parts included in Seal Kit 253553

(purchase separately).

◆ Parts included in Repair Kit 289901 (purchase separately).

† Model 249514 only.

‡ Model 249512 only.

❄ Not shown.

311209R 15

Parts

Models 249515 and 249513, Hot Melt Guns

29, 64

Model 249513 Only

Model 249515 Only

r_249512_311209_11

FIG. 15: Models 249515 and 249513, Hot Melt Guns

16 311209R

Parts

Model 249515 Manual Hot Melt Gun, Top Feed, Extrude, No Switch

Model 249513 Manual Hot Melt Gun, Top Feed, Extrude, with Switch

Ref. No. Part No. Description Qty.

30 C78160 TERMINAL 1 31 122340 SCREW, shoulder, socket hd. 2 32 122337 SCREW, cap, socket button hd. 5 33 124779 SCREW, cap, socket hd. 2

Ref. No. Part No. Description Qty.

34 108483 SCREW, shoulder 1 35 C20565 WASHER, spring washer 1 36 15X093 BLOCK, terminal 2 37 102975 SCREW, 6-32 x .25 1 38 122341 CONNECTOR, pigtail, IDC 2 39‡❄ C07535 TUBE, heat shrink 1 40❄ C34137 INSULATOR, fiberglass 1 41 122433 NUT, square 2 42❄ 065366 WIRE, silver-coated copper 1 43❄ C33049 TAPE, adhesive, fiberglass 1 44❄ 198422 COVER, protective 1 45❄ 198442 STRAP, retaining mix manifold 2 46 100272 WASHER, #6 internal lock 1 47*◆ 103610 PACKING, o-ring 1 49❄ 617836 SLEEVE, fiberglass braid,

5RETAINER, spring 1

C27037 Model 249515

15G004 Model 249513 6◆ 15G001 ADAPTER, seat 1 7 C32003 NOZZLE 1 8 287736 SWIVEL, assy (inline with stop) 1 9 15G018 COVER, gun handle 1 10 119876 CONDUIT, flex 1

50‡ 15G003 COVER, switch 1 51‡ C32370 SWITCH 1 52‡ 15G019 SPACER, cover mounting 1 53‡ 122335 TUBE, 1/4 O.D. 1 54‡ 102273 SCREW, 6-32 x .19 1 55‡ 122338 SCREW, cap, socket button hd. 3 56❄ 065379 WIRE, silver-coated copper,

11† C27036 NUT, lock 1 12 116673 BUSHING, strain relief 1 13 116637 CONNECTOR, cable coupler

hood 14 C00020 SPRING 1 15 115860 INSERT, male 1 16 15F989 COVER, gun wires 1 17 C27051 TRIGGER, gun 1 18 15G022 TUBE 1 19 C32368 RING 1 20 119889 COVER, swivel 1

57❄ 065380 WIRE, silver-coated copper,

59 122339 WASHER, Belleville 4 60 157021 WASHER, lock 2 61❄ 070269 SEALANT, anaerobic AR 62 C19208 WASHER, lock 3 63❄ 101369 WRENCH, allen 1 64 CONNECTOR, male, crimp

116640 Model 249515 4

116640 Model 249513 6 21 C32255 SENSOR, temperature 1 22 122334 CARTRIDGE, heater 2 23 C34009 TRIGGER, lock 1 24 15X116 PIN, trigger 3 25 C19950 SCREW, cap 3 26 15G020 HANGER 1 27 15G121 WASHER, gun 1

* Parts included in Seal Kit 253553

(purchase separately).

◆ Parts included in Repair Kit 289901 (purchase separately).

† Model 249515 only.

28❄ 065337 WIRE, copper, electric 1 29 115862 CONNECTOR, male, crimp

‡ Model 249513 only.

Model 249515 1 Model 249513 1

❄ Not shown.

#10 blk

orange

yellow

311209R 17

Parts

Models 297274 and 297273, Hot Melt Guns

Top feed

Model 297273

only

7, 56

Bottom feed

Model 297274

only

29, 64

r_249512_311209_12

FIG. 16: Models 297274 and 297273, Hot Melt Guns

18 311209R

Parts

Model 297274 Manual Hot Melt Gun, Bottom Feed, Swirl, with Switch

Model 297273 Manual Hot Melt Gun, Top Feed, Swirl, with Switch

Ref. No. Part No. Description Qty.

1 15G017 HANDLE 1 2 15X297 BODY, gun 1 3 15G006 SPACER, thermal, isolator 1 4 287734 NEEDLE, assy, includes 4a-4j 1 4a 15G531 NEEDLE 1 4b C27053 SUPPORT, packing 1 4c* C27060 SEAL, needle 3 4d* 103338 PACKING, o-ring 1 4e 15F993 NUT, packing 1 4f 15F991 SCREW, adjustment 1 4g C19284 NUT, hex 1 4h 15F997 YOKE, gun 1 4j* 106560 PACKING, o-ring 1 5 15G004 RETAINER, spring 1 6 15G002 ADAPTER, swirl 1 7 118072 HEAD, applicator, swirl 1 8 287736 SWIVEL, assy (inline with stop) 1 9 15G018 COVER, gun handle 1 10 119876 CONDUIT, flex 1 12 116673 BUSHING, strain relief 1 13 116637 CONNECTOR, cable coupler

hood 14 C00020 SPRING 1 15 115860 INSERT, male 1 16 15F989 COVER, gun wires 1 17 C27051 TRIGGER, gun 1 18 15G022 TUBE 1 19 C32368 RING 1 20 119889 COVER, swivel 1 21 C32255 SENSOR, temperature 1 22 122334 CARTRIDGE, heater 2 23 C34009 TRIGGER, lock 1 24 15X116 PIN, trigger 3 25 C19950 SCREW, cap 3 26 15G020 HANGER 1 27 15G121 WASHER, gun 1 28❄ 065337 WIRE, copper, electric 1 29 115862 CONNECTOR, male, crimp 1 30 C78160 TERMINAL 1 31 122340 SCREW, shoulder, socket hd. 2 32 122337 SCREW, cap, socket button hd. 5 33 124779 SCREW, cap, socket hd. 2 34 108483 SCREW, shoulder 1

Ref. No. Part No. Description Qty.

35 C20565 WASHER, spring washer 1 36 15X093 BLOCK, terminal 2 37 102975 SCREW, 6-32 x .25 1 38 122341 CONNECTOR, pigtail, IDC 2 39❄ C07535 TUBE, heat shrink 1 40❄ C34137 INSULATOR, fiberglass 1 41 122433 NUT, square 2 42❄ 065366 WIRE, silver-coated copper 1 43❄ C33049 TAPE, adhesive, fiberglass 1 44❄ 198422 COVER, protective 1 45❄ 198442 STRAP, retaining mix manifold 2 46 100272 WASHER, lock 1 47* 103610 PACKING, o-ring 1 48† 116807 SCREW, mach, pan head, cross 1 49❄ 617836 SLEEVE, fiberglass braid,

#10 blk 50 15G003 COVER, switch 1 51 C32370 SWITCH 1 52 15G019 SPACER, cover mounting 1 53 122335 TUBE, 1/4 O.D. 1 54 102273 SCREW, set, socket 1 55 122338 SCREW, cap, socket button hd. 3 56 117950 NOZZLE, 0.030 1 57❄ 065379 WIRE, silver-coated copper,

orange 58❄ 065380 WIRE, silver-coated copper,

yellow 59 122339 WASHER, Belleville 4 60 157021 WASHER, lock 2 61❄ 070269 SEALANT, anaerobic AR 62 C19208 WASHER, lock 3 63❄ 101369 WRENCH, allen 1 64 116640 CONNECTOR, male, crimp 6

* Parts included in Seal Kit 253553 (purchase separately).

† Model 297274 only.

❄ Not shown.

311209R 19

Accessories

Part No. Description

C34137 Fitting insulation, 1/8 in. thick x 2 in.

wide. Sold by the foot.

C33049 Adhesive tape, high temp for secur-

ing insulation (C34137), 1 in. x 108 ft.

198422 Wrap, velcro, 10 in. x 10 in. Covers

electrical connection on heated hose.

198442 Strap, velcro. Use two around ends

of wrap (198422) for security.

Swirl Assemblies

For models 297273 and 297274 only.

Part No. Description Orifice Size (in.)

118072 Swirl applicator head n/a 117950 Swirl nozzle .030 117951 Swirl nozzle .045 117952 Swirl nozzle .060 117953 Swirl nozzle .080

20 311209R

Technical Data

Maximum operating temperature 400°F (204°C)

Maximum fluid working pressure 5000 psi (34.5 MPa, 345 bar)

Outlet port size 5/8-18 UNF-2B

Inlet port size on gun housing 7/8-14 UNF- 2B

Inlet port size on fluid swivel 7/8-14 JIC(m)

Voltage 230/240 Vac

Wattage 120 W

Resistance temperature detector (platinum RTD; 0.00385 ohm/ohm/°C) 108.2 ohms @ 70°F

Heater resistance individually: 890 ohms, +/- 70 ohms

wired in parallel: 445 ohms, +/- 35ohms

Weight without swivel: 2.7 lb (1.2 kg)

with swivel: 3.4 lb (1.5 kg)

Dimensions Height: 7.5 in. (191 mm)

Width: 3.0 in. (76 mm)

Length:

Models 249514 and 249515: 9.0 in. (229 mm)

Models 249512 and 249513: 10.5 in. (267 mm)

Models 297273 and 297274: 11.5 in. (292 mm)

Wetted parts Aluminum, fluorocarbon rubber, stainless steel, PTFE,

carbon steel, brass

311209R 21

Graco Standard Warranty

Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written recommendations.

This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or maintenance of structures, accessories, equipment or materials not supplied by Graco.

This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. 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.

THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.

Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.

GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to

the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these warranties.

In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the negligence of Graco, or otherwise.

FOR GRACO CANADA CUSTOMERS

The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into, given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite de ou en rapport, directement ou indirectement, avec les procédures concernées.

Graco Information

For the latest information about Graco products, visit www.graco.com.

TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor. Phone: 612-623-6921 or Toll Free: 1-800-328-0211 Fax: 612-378-3505

All written and visual data contained in this document reflects the latest product information available at the time of publication.

GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA

Graco reserves the right to make changes at any time without notice.

For patent information, see www.graco.com/patents.

Original instructions.

This manual contains English. MM 311209

Graco Headquarters: Minneapolis

International Offices: Belgium, China, Japan, Korea

www.graco.com

Revision R, March 2014

Graco 311209R User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Models

Warnings

Installation

Connect Heated Hose

Connect Electrical Cable

Ground the System

Pressure Relief Procedure

Trigger Lock

Operation

Heatup

Dispensing

Shutdown

Troubleshooting

Service

Install New Heater Cartridge(s), RTD Sensor, or Switch

Inspection Frequency

Service Valve Stem and Seal

Adjust Needle Assembly

Parts

Accessories

Swirl Assemblies

Technical Data

Graco Standard Warranty

Graco Information