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Service 

8

309739

Service

Models 12004, 12004X

Disassembly 

1.

Actuate gun to purge material and relieve pressure 
in gun. Pressure Relief Procedure, page 5.

2.

Disconnect material supply line from gun handle.

3.

Hold adapter (9) stationary and unscrew nozzle and 
collar (16).

4.

With trigger depressed, unscrew adapter (9) from 
gun body (17).

5.

Remove o-ring (10) from adapter (9).

6.

Loosen lock nut (14).

7.

Carefully unscrew and remove spring retainer (15) 
and spring (13) from the gun body (17).

8.

Remove screw (11) and lock washer (23) from side 
of trigger (18).

9.

Pull trigger pins (12) from gun body (17) and remove 
trigger (18). 

10. Unscrew packing nut (5) from gun body (17).

11. Remove cartridge assembly through side of gun 

handle.

Cartridge Disassembly Procedure

1.

Remove o-ring (4) from groove on packing nut (5).

2.

Loosen lock nut (14) on cartridge while holding yoke 
(1) in a soft

3.

Separate needle/ball (8) from yoke (1) using the slot 
in needle/ball to unscrew the yoke.

4.

Remove adjusting screw (3) from packing nut (5). 
Then, separate needle/ball (8) from packing support 
(7).

5.

Push seals (6) out of packing nut (5).

Reassembly 

Clean all parts thoroughly before reassembling. Check 
them carefully for damage or wear, replacing parts as 
needed. For best results replace the original parts with 
new parts in repair kits.

Prior to assembly, lubricate all seals and o-rings with 
PARKER-O-LUBE or an equivalent lubricant.

1.

Push seals (6) in the packing nut (5).

2.

Screw adjusting screw (3) into packing nut (5). 
Insert needle/ball (8) into packing support (7).

3.

Attach needle/ball (8) to yoke (1) using slot in the 
yoke to screw needle/ball. 

4.

Secure yoke in soft jawed vice. Tighten lock nut to 
cartridge.

5.

Install o-ring (4) onto groove in packing nut (5).

6.

Insert cartridge assembly through front of gun han-
dle.

7.

Screw packing nut (5) in gun body (17).

8.

Install trigger (18) and insert trigger pins (12) in gun 
body (17). Secure using screws (11) and lock wash-
ers (23).

9.

Install snap rings (11) from top to bottom to secure 
trigger pins (12).

10. Install spring (13) and spring retainer (15) into the 

gun body (17). Adjust spring retainer to allow 
approximately 1/32 in. of free play on trigger.

11. Tighten lock nut (14).

12. Install o-ring (10) to adapter (9).

13. With trigger retracted, screw adapter (9) into gun 

body (17).

Needle/ball

O-Ring

Yoke

Packing Nut

Adjusting Screw

Nut

Packing Support

Seal

ti3810a

Needle/ball

O-Ring

Yoke

Packing Nut

Adjusting Screw

Nut

Packing Support

Seal

ti3810a

Summary of Contents for ti3795a

Page 1: ... ambient temperature sealants and adhesives Important Safety Instructions Read all warnings and instructions in this manual Save these instructions See page 2 for part numbers and maxumum work ing pressure Model 12004X Models 12004 and 12005 Model 12006 309739D ...

Page 2: ...el 12005 9 Model 12006 11 Parts 12 Models 12004 12004X 12 Model 12005 13 Model 12006 14 Technical Data 15 Graco Standard Warranty 16 Graco Information 16 Part Number Model Description 2500 psi 17 2 MPa 172 bar maximum working pressure C27020 12004 Standard base seal C27031 12004X Two stage easy pull C27067 12005 Balanced piston Part Number Model Description 2000 psi 13 79 MPa 137 9 bar maximum wor...

Page 3: ...gs and before cleaning checking or servicing equipment TOXIC FLUID HAZARD Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on the 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 EQUIPMENT MISUSE HAZARD Equipment misuse ca...

Page 4: ... ing pressure always hold a metal part of spray gun firmly to side of a grounded metal pail Then trigger spray gun 1 Pump connect a ground wire and clamp to a true earth ground as shown in pump manual 2 Applicator ground through motor cable assembly 3 Fluid and air hoses only use electrically conduc tive material and air hoses 4 Dispense gun ground through connection of hose or cable 5 Air compres...

Page 5: ...If you suspect the tip nozzle or hose is completely clogged or that pressure has not been fully relieved after following the above steps VERY SLOWLY loosen the retaining nut or hose end coupling to relieve pressure gradually Then loosen it completely Clear tip nozzle or hose Trigger Lock Always engage trigger lock when you stop dispensing to prevent gun from being triggered accidentally by hand or...

Page 6: ...ion of trigger needs adjustment Check spring tension adjustment at rear of gun Spring tension should be adjusted to allow approximately 1 32 in of free play on trigger Verify integrity of trigger pin through yoke Repair or replace cartridge assembly as necessary Needle and seat adapter loose or worn Check that seat adapter is tightened firmly and flush to gun body Needle and seat adapter worn Repl...

Page 7: ...Troubleshooting 309739 7 ...

Page 8: ...oroughly before reassembling Check them carefully for damage or wear replacing parts as needed For best results replace the original parts with new parts in repair kits Prior to assembly lubricate all seals and o rings with PARKER O LUBE or an equivalent lubricant 1 Push seals 6 in the packing nut 5 2 Screw adjusting screw 3 into packing nut 5 Insert needle ball 8 into packing support 7 3 Attach n...

Page 9: ...ly unscrew and remove spring retainer 15 8 Remove screws 11 and lock washers 28 from trigger pins 12 9 Pull trigger pins 12 from gun body 17 and remove trigger 18 10 Remove piston valve 20 from front of gun 11 Unscrew packing nut 5 from gun body 17 12 Remove cartridge assembly from gun Cartridge Disassembly Procedure 1 Remove guide 22 from needle 8 2 Remove two o rings 23 from guide 22 3 Unwind sp...

Page 10: ...de 22 9 Insert cartridge assembly in gun body 17 from rear of gun 10 Screw packing nut 5 into gun body 17 11 Insert valve 20 through front of gun on needle 8 12 Tighten nut 19 on needle 8 13 Adjust screw 3 to tighten packings 14 Install trigger 18 Align yoke 1 in gun body 17 15 Press trigger pin 12 into gun body 16 Secure trigger pins 12 using screws 11 and lock washers 28 17 Install spring 13 and...

Page 11: ...he original parts with new parts in repair kits Prior to assembly lubricate all seals and o rings with PARKER O LUBE or an equivalent lubricant 1 Replace o ring 5 and seals 4 in packing nut 6 2 Thread packing nut 3 into gun body 3 Install packing assembly through rear of gun 4 Install needle assembly through rear of gun 5 Install spring 14 and spring retainer 16 into gun body Adjust spring retaine...

Page 12: ...EDLE 1 9 C27063 ADAPTER ball seat 1 10 C20102 PACKING o ring 1 11 C19950 SCREW cap sch model 12004 2 model 12004 X 3 12 15X116 PIN trigger model 12004 2 model 12004 X 3 13 C00020 SPRING 1 14 C27036 NUT lock 1 15 C27037 RETAINER spring 1 16 C00004 COLLAR 1 17 C27049 BODY flow gun 1 18 C27051 TRIGGER hot melt 1 19 C34009 TRIGGER lock 1 20 108483 SCREW shoulder sch 1 21 C20565 WASHER spring 1 22 0702...

Page 13: ...NG o ring 1 11 C19950 RING snap 2 12 15X116 PIN trigger 2 13 C00020 SPRING 1 14 C27036 NUT lock 1 15 C27037 RETAINER spring 1 16 C00004 COLLAR 1 17 C27049 BODY flow gun 1 18 C27051 TRIGGER hot melt 1 19 C27076 NUT 1 20 C27072 VALVE piston 1 21 C27074 PACKING PTFE o ring 1 22 C27075 GUIDE 1 23 103337 PACKING o ring 2 24 C34009 TRIGGER lock 1 25 108483 SCREW shoulder sch 1 26 C20565 WASHER spring 1 ...

Page 14: ...KE 1 9 C02064 GASKET 1 10 C27063 ADAPTER ball seat 1 11 C20102 PACKING o ring 1 12 C19950 RING snap 2 13 15X116 PIN trigger 2 14 C00020 SPRING 1 15 C27036 NUT lock 1 16 C27037 RETAINER spring 1 17 C00004 COLLAR 1 18 C27086 NOZZLE 1 19 C27049 BODY flow gun 1 20 C27051 TRIGGER hot melt 1 21 C34009 TRIGGER lock 1 22 108483 SCREW shoulder sch 1 23 C20565 WASHER spring 1 24 070269 SEALANT anaerobic 25 ...

Page 15: ...ensions Height 7 in 178 mm Width 2 in 51 mm Length Models 12004X 12004 and 12005 7 in 178 mm Model 12006 9 in 229 mm Wetted parts Models 12004 and 12004X aluminum fluorocarbon rubber carbon steel tool steel brass tetrafluoroethylene Model 12005 aluminum fluorocarbon rubber carbon steel brass fluoroelastomer stainless steel PTFE tetrafluoroethylene Model 12006 aluminum fluorocarbon rubber carbon st...

Page 16: ...se 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...

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