Graco 6 oz. (C04090) Service, Sealant Gun Body Disassembly C04093, Gun Handle Disassembly C04079

Service

Topics Covered in this Chapter

♦Sealant Gun Body Disassembly (C04093)

♦Gun Handle Disassembly (C04079)

♦Sealant Gun Reassembly (C04093)

♦Gun Handle Assembly (C04079)

Sealant Gun Body Disassembly (C04093)

This procedure describes how to disassemble the sealant gun. Refer to Parts, page 8.

1.Shut off material and air supply lines to gun.

2.Actuate gun to purge material.

Pressure Relief Procedure, page 5 , from gun.

3.Disconnect air hose from sealant gun.

4.Unhook bracket (2) from retainer (21) and remove from sealant gun.

5.Disassemble parts attached to gun body as follows:

a.Cotter pin (3)

b.Knob and stud assembly (1)

c.Roll pin (10) and lever (17)

d.Snap ring (16) that holds the sleeve (15), two o-rings (14), push rod (13), o-ring (12), poppet (11) and spring (9) inside the body

(4).

e.Unscrew the swivel screw (8) and remove the o-rings (14), swivel (6) and washer (5).

Note

The gun handle assembly should not be disassembled unless the original parts are worn or damaged.

Gun Handle Disassembly (C04079)

1.Remove the screw (101) and clamp (102) from the handle (103).

2.Carefully tap the spring pin (105) and trigger pin (106) out of the handle assembly.

3.Remove the trigger (107) and trigger spring (104) from the handle (103).

Sealant Gun Reassembly (C04093)

Note

•Clean all parts thoroughly before reassembling. Check them carefully for damage or wear, replacing parts if needed.

•Repair Kit C04094 is available to service the Sealant Gun body. For best results, replace the original parts with new parts in the repair kit.

•Prior to installation, lubricate all seals and o-rings with PARKER-O-LUBE™ or an equivalent lubricant. Check the material supplier for a compatible lubricant.

1.Clean and free all parts of solid material residue.

2.Reassemble gun body as follows:

a.Install washer (5), swivel (6), two o-rings (14) and screw (8).

b.Install spring (9), poppet (11), o-ring (12), push rod (13), two o-rings (14), sleeve (15) and snap ring (16) inside body.

c.Install lever (17) and roll pin (10).

d.Install knob assembly (1) and bracket (2).

e.Install cotter pin (3).

3.Hook bracket (2) onto the retainer (21). Install parts on the gun.

4.Reconnect air hose to sealant gun.

5.Turn on air supply to sealant gun. Check for leaks.

Gun Handle Assembly (C04079)

1.Place trigger (107) and trigger spring (104) inside handle (103). Make sure trigger spring is aligned correctly with trigger.

2.Insert spring pin (105) and trigger pin (106) into holes in handle (103) assembly.

3.Install clamp (102) and screw (101) in handle (103) assembly.

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