Graco TI7700 Operation manual

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2006, Graco Inc. is registered to I.S. EN ISO 9001
311209 rev.F
Instructions - Parts
Hot Melt
Dispense Guns
For dispensing non-flammable hot melt thermoplastic sealants and adhesives.
3500 psi (24.1 MPa, 241 bar) Maximum Working Pressure
See page 2 for model information.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
TI7701
TI7700
Bottom feed model
Top feed model

Models
2311209F
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
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Install New Heater Cartridge(s), RTD Sensor, or
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Inspection Frequency . . . . . . . . . . . . . . . . . . . . 12
Adjust Needle Assembly . . . . . . . . . . . . . . . . . . 12
Service Valve Stem and Seal . . . . . . . . . . . . . . 12
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 22
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 22
Models
Model 249514 Bottom Feed
Model 249512 Bottom Feed with Trigger Switch
Model 249515 Top Feed
Model 249513 Top Feed with Trigger Switch
Model 297273 Top Feed with Swirl
Model 297274 Bottom Feed with Swirl

Warnings
311209F 3
Warnings
The following warnings are for the safe setup, use, grounding, maintenance, and repair of this equipment. The excla-
mation 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.
• Do not spray without tip guard and trigger guard installed.
• Engage trigger lock when not spraying.
• Follow Pressure Relief Procedure in this manual, when you stop spraying and before cleaning,
checking, or servicing equipment.

Warnings
4311209F
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 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.
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.
WARNING

Installation
311209F 5
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.
2. Securely connect hose to gun swivel (A).
3. Wrap connection with insulating cuff (B) (119889).
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.
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.
3. Fasten Velcro insulation wrap (198422) snugly
around hose. Secure wrap with two Velcro straps
(198442) on ends of wrap.
Part No. Adapter Hose Size
120264 -8 JIC x -10 JIC -8
-- Not required -10
120265 -10 JIC x -12 JIC -12
FIG. 1: Hose Gun Swivel
FIG. 2: Insulating Cuff
A
TI8057
B
TI8056
FIG. 3: Connect Electrical Cable, Step 1
FIG. 4: Connect Electrical Cable, Step 2
FIG. 5: Connect Electrical Cable, Step 3

Installation
6311209F
Ground the System
The following grounding instructions are minimum
requirements for a basic dispensing system. Your sys-
tem 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 resis-
tance limits. If the hose resistance exceeds the rec-
ommended 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.
•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-con-
ductive surface, such as paper or cardboard, which
interrupts the grounding continuity.
To maintain grounding continuity when flushing or reliev-
ing 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/dis-
pensing equipment used or located in the spraying/dis-
pensing area. Check your local electrical code for
detailed grounding instructions for your area and type of
equipment.

Pressure Relief Procedure
311209F 7
Pressure Relief
Procedure
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 FIG. 6.
To disengage trigger lock, rotate it upward. See FIG. 7.
1. Fully release gun trigger and engage gun trigger
lock. See FIG. 6.
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 FIG. 7. Trigger gun to relieve fluid pressure.
4. Fully release gun trigger and engage gun trigger
lock. See FIG. 6.
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 dis-
pense 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
Do not try to force trigger valve open with trigger
lock engaged. This could result in component fail-
ure.
FIG. 6: Trigger Lock Engaged
FIG. 7: Trigger Lock Disengaged
Trigger Lock
Engaged
TI8049
Trigger Lock
Disengaged
TI8050

Operation
8311209F
Operation
Heatup
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).
3. Activate heat controls.
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 dis-
pense of high pressure heated fluid.
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 pre-
vent excessive pressure buildup.
FIG. 8: Trigger Retainer Locked
Z
TI8051 FIG. 9: Trigger Retainer Unlocked and Trigger Lock
Engaged
Trigger Lock
Engaged
TI8049
TI8052
Z

Operation
311209F 9
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.
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).
FIG. 10: Trigger Lock Disengaged
Trigger Lock
Disengaged
TI8050
Z
TI8051

Troubleshooting
10 311209F
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
Obstruction inside gun
Worn needle
Replace seat (6) or packing (47).
Remove seat (6). Check and replace
if necessary.
Check and replace needle (4a) if nec-
essary.
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 cor-
rectly
Obstruction inside gun
Replace needle (4a) or seat (6).
Check and replace spring (14) if nec-
essary.
Remove seat (6). Check and replace
if necessary.
Gun does not heat material Loose heater wires
Loose sensor wires
Heater cartridge failed
Sensor failed
Temperature controller failed
No power to heating circuitry
Check and reconnect wire connec-
tions.
Check and reconnect wire connec-
tions.
Replace failed heater.
Replace failed sensor.
Refer to Therm-O-Flow®200 manual
311208 as appropriate.

Service
311209F 11
Service
1. If fluid continues to flow after trigger is released:
• gun valve may need adjustment,
• gun valve may be obstructed or damaged,
• or needle assembly (4) or seat (6) may be worn
or damaged.
Replace needle assembly (4) or seat (6) as
instructed on page 12.
2. Use Repair Kit 253553 for Manual Hot-Melt Guns
249512, 249513, 249514, 249515, 297273, and
297274.
Install New Heater Cartridge(s),
RTD Sensor, or Switch
1. Remove covers (9 and 16).
2. Pull terminal block (36) out of handle and discon-
nect lead wires of failed components.
3. Gently slide new heater(s) or sensor into appropri-
ate hole.
4. Feed new wires through conduit to terminal block
(36) and connect after cutting to length and strip-
ping.
5. Use an ohm meter to check:
a. Heater pins 1 to 2, 480 + 48 /-24 .
b. RTD sensor pin 3 to 4, 108 +/-1 at 70°F
(21°C).
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.
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.
ΩΩΩ
ΩΩ
FIG. 12: 8 Pin, 240 Volt Shown
All
Models
{
{
All models except
249514 and
249515
Viewed from wire end of connector

Service
12 311209F
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 960 ohms, +96/- 48
ohms for the 240V valves. Replace heater if necessary.
Also inspect heater when performing regular mainte-
nance 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 mainte-
nance procedures.
Adjust Needle Assembly
The trigger travel and corresponding valve opening are
factory set. To adjust this setting, use the following pro-
cedure.
1. Relieve pressure in system.
2. Disconnect gun from hose.
3. Use 11/32 in. wrench to loosen hex nut (4g).
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 han-
dle 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.
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

Notes
311209F 13
Notes

Parts
14 311209F
Parts
Models 249514 and 249512, Hot Melt Guns
FIG. 13: Models 249514 and 249512, Hot Melt Guns
Detail A
Orient snap rings as shown. For
ease of assembly, install pins
and snap rings from top to bot-
tom. Middle snap ring must be
installed facing up, then rotated
to position shown. Snap rings
must be flush with each other
without overlapping.
4a
4b
4e
4d
4f
4g
4j
4h
5214
5
55
50
51
5
11
27
14
35
23
34
30
46
37
36
32
48
9
10
12
13
29
15
17
19
18
25
24 1
3
4
41
32
16
26
21
22
2
31
47
6
78
20
Model 249512 Only
TI8058
TI8059
53
27
4c
54
33

Parts
311209F 15
Model 249514
Manual Hot Melt Gun, Bottom Feed, Extrude,
No Switch
Model 249512
Manual Hot Melt Gun, Bottom Feed, Extrude, with
Switch
* Parts included in Seal Kit 253553 (purchase sepa-
rately).
† Model 249514 only.
‡ Model 249512 only.
❄Not shown.
Ref.
No. Part No. Description Qty
1 15G017 HANDLE 1
2 15F983 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 RETAINER, 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 119885 CARTRIDGE, heater 2
23 C34009 TRIGGER, lock 1
24 C27035 PIN, trigger 3
25 C20442 RING, snap, external 6
26 15G020 HANGER 1
27 15G121 WASHER, gun 1
28❄15K546 WIRE, 18AWG, 600V 1
29 115862 CONNECTOR, male, crimp
Model 249514 5
Model 249512 7
30 C78160 TERMINAL 1
31 100035 SCREW, 8-32 x .31 2
32 103854 SCREW, 6-32 x .25 5
33 120103 SCREW, socket-hd., 8-32 x 2.50 2
34 108483 SCREW, shoulder 1
35 C20565 WASHER, spring washer 1
36 15G060 BLOCK, terminal 1
37 102975 SCREW, 6-32 x .25 1
39‡❄C07535 TUBE, heat shrink 1
40❄C34137 INSULATOR, fiberglass 1
41 C19286 NUT, 8-32 2
42❄15K547 WIRE, 22AWG, 600V 1
43❄C33049 TAPE, adhesive, fiberglass 1
44❄198422 COVER, protective 1
45❄198442 STRAP, retaining mix manifold 1
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‡ 112699 TUBE 1
54‡ 102273 SCREW, set, 6-32 x .19 1
55‡ SCREW, 4-40 x .25 3
Ref.
No. Part No. Description Qty

Parts
16 311209F
Models 249515 and 249513, Hot Melt Guns
FIG. 14: Models 249515 and 249513, Hot Melt Guns
4a
4c
4b
4e 4d
4f
4g
4j
4h
52
14
54
55 50
Orient snap rings as shown. For
ease of assembly, install pins
and snap rings from top to bot-
tom. Middle snap ring must be
installed facing up, then rotated
to position shown. Snap rings
must be flush with each other
without overlapping.
Detail A
51
Model 249513 Only
25
24
1
3
41 35
23
34
30
46
37
17
19
18
36
9
32
20
8
26
5
11
27
14
33
32
16
4
22
21
7
6
47
31
2
12
10
13
29
15
TI8060
TI8059
27
535

Parts
311209F 17
Model 249515
Manual Hot Melt Gun, Top Feed, Extrude, No Switch
Model 249513
Manual Hot Melt Gun, Top Feed, Extrude,
with Switch
* Parts included in Seal Kit 253553 (purchase sepa-
rately).
† Model 249515 only.
‡ Model 249513 only.
❄Not shown.
Ref.
No. Part No. Description Qty.
1 15G017 HANDLE 1
2 15F983 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 RETAINER, spring 1
C27037 Model 249514
15G004 Model 249512
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 119885 CARTRIDGE, heater 2
23 C34009 TRIGGER, lock 1
24 C27035 PIN, trigger 3
25 C20442 RING, snap, external 6
26 15G020 HANGER 1
27 15G121 WASHER, gun 1
28❄15K546 WIRE, 18AWG, 600V 1
29 115862 CONNECTOR, male, crimp
Model 249515 5
Model 249513 7
30 C78160 TERMINAL 1
31 100035 SCREW, 8-32 x .31 2
32 103854 SCREW, 6-32 x .25 5
33 120103 SCREW, socket-hd., 8-32 x 2.50 2
34 108483 SCREW, shoulder 1
35 C20565 WASHER, spring washer 1
36 15G060 BLOCK, terminal 1
37 102975 SCREW, 6-32 x .25 1
39‡❄C07535 TUBE, heat shrink 1
40❄C34137 INSULATOR, fiberglass 1
41 C19286 NUT, 8-32 2
42❄15K547 WIRE, 22AWG, 600V 1
43❄C33049 TAPE, adhesive, fiberglass 1
44❄198422 COVER, protective 1
45❄198442 STRAP, retaining mix manifold 1
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‡ 112699 TUBE 1
54‡ 102273 SCREW, 6-32 x .19 1
55‡ SCREW, 4-40 x .25 3
Ref.
No. Part No. Description Qty.

Parts
18 311209F
Models 297274 and 297273, Hot Melt Guns
FIG. 15: Models 297274 and 297273, Hot Melt Guns
5
33
35
23
34
48
36
32
9
10
12
13
29
15
17
19
25
24
1
3
41
Orient snap rings as shown. For
ease of assembly, install pins
and snap rings from top to bot-
tom. Middle snap ring must be
installed facing up, then rotated
to position shown. Snap rings
must be flush with each other
without overlapping.
Detail A
4a
4c
4b
4e
4d
4f
4g
4j
4h
12
10
13
29
15
14
52
51
50
55
18
4
32
16
21
22
2
6
7, 56
8
20
26
TI8061
TI8059
53
27
54
30
37
46
Model 297273
Top feed
only
Model 29727
4
Bottom feed
only
47

Parts
311209F 19
Model 297274
Manual Hot Melt Gun, Bottom Feed, Swirl,
with Switch
Model 297273
Manual Hot Melt Gun, Top Feed, Swirl, with Switch
* Parts included in Seal Kit 253553 (purchase sepa-
rately).
† Model 297274 only.
❄Not shown.
Ref.
No. Part No. Description Qty.
1 15G017 HANDLE 1
2 15F983 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
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 119885 CARTRIDGE, heater 2
23 C34009 TRIGGER, lock 1
24 C27035 PIN, trigger 3
25 C20442 RING, snap, external 6
26 15G020 HANGER 1
27 15G121 WASHER, gun 1
28❄15K546 WIRE, 18AWG, 600v 1
29 115862 CONNECTOR, male, crimp 7
30 C78160 TERMINAL 1
31 100035 SCREW, 8-32 x .31 2
32 103854 SCREW, 6-32 x .25 5
33 120103 SCREW, socket-hd., 8-32 x 2.50 2
34 108483 SCREW, shoulder 1
35 C20565 WASHER, spring washer 1
36 15G060 BLOCK, terminal 1
37 102975 SCREW, 6-32 x .25 1
39❄C07535 TUBE, heat shrink 1
40❄C34137 INSULATOR, fiberglass 1
41 C19286 NUT, 8-32 2
42❄15K547 WIRE, 22AWG, 600V 1
43❄C33049 TAPE, adhesive, fiberglass 1
44❄198422 COVER, protective 1
45❄198442 STRAP, retaining mix manifold 1
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
2
50 15G003 COVER, switch 1
51 C32370 SWITCH 1
52 15G019 SPACER, cover mounting 1
53 112699 TUBE 1
54 102273 SCREW, set, socket 1
55 SCREW, mach, Phillips rnd hd 3
56 117950 NOZZLE, 0.030 1
Ref.
No. Part No. Description Qty.

Accessories
20 311209F
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.