Graco 308320B Four-Finger Trigger Conversion Kit Owner's Manual

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Graco 308320B Four-Finger Trigger Conversion Kit Owner's Manual | Manualzz

INSTRUCTIONS–PARTS LIST

This manual contains important warnings and information.

READ AND RETAIN FOR REFERENCE

308–320

Rev. B

Supersedes A

Four-Finger Trigger Conversion Kit

Part Number 236–163

For use on PRO AA4500 Electrostatic Air-Assisted Airless Spray Gun, part no. 236–030 and 236–031, to change from a two-finger trigger to four-finger trigger. See other side of this form for parts included with this kit.

Installation

PRO AA4500 Spray Gun with Two-Finger Trigger

Installing the Conversion Kit

WARNING

To reduce the risk of serious injury, including fluid injection, splashing in the eyes or on skin, or electrostatic shock, always turn off the electrostatics to the gun and relieve all pressure in the system, as instructed in your gun manual 308–294, before beginning to install the conversion kit.

A

1.

Loosen the screws (A) and remove the two-finger trigger (B) from the gun. See Fig. 1.

2.

Loosen the bottom fluid tube nut (E) and remove the filter (F) from the gun.

3.

Unscrew the top fluid tube nut (C) and remove the fluid tube (D) from the gun.

4.

Unscrew the air adapter (G). Remove the bracket assembly (H), barb fitting (J) and o-ring (K).

5.

Cut or grind the finger tab (L) according to the dimensions below to allow room for the four-finger trigger. Do not cut into the handle (R) or the trigger safety (S) or its support area. See Fig. 2.

WARNING

To avoid accidental triggering of the gun due to trigger safety failure, do not grind into the trigger safety or its support area.

C

D

Fig. 1

S SIDE VIEW

E

B

F

13.1 mm

(0.52 in.)

L

R

K

J

02451

H

G

Do not grind into the handle or the trigger safety or its support area.

Remove sharp corners on finger tab (L) as needed.

Fig. 2

L

9.75 mm

(0.38 in.)

L BOTTOM VIEW

02670, 02672

GRACO INC.

P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

COPYRIGHT 1993, GRACO INC.

Installation

6.

Apply low-strength thread sealer (such as purple

Loctite r ) to the screw (4) threads, then secure the finger tab (2) to the trigger (1) with the screw. See

Fig. 3.

7.

Install the four-finger trigger (1) with the screws (A).

8.

Install the o-ring (10) onto the barb fitting (9) and install the barb fitting into the gun handle.

11. Assemble the tube into the barrel (P). Tighten the fluid tube nut (C) 1/4 to 1/2 turn past hand-tight.

There will be a gap between the nut and barrel. Do not over-tighten the nut.

12. Assemble the tube (7) and filter (6) to the bracket

(3). When tightening the bottom fluid tube nut (E), make sure the top nut (C) remains tightened.

9.

Apply grease (8) to the entire length of the plastic extension (N) on the end of the fluid tube (7).

10. Apply low-strength thread sealer (such as purple

Loctite) to the bottom 1/4 in. (6 mm) of the fluid tube nut (C) threads. See Fig. 3.

PRO AA4500 Spray Gun with Four-Finger

Trigger

13. Install the air fitting (G) through the bracket (3).

Apply high-strength thread sealer (such as green

Loctite r ) to the threads and install the adapter into the gun handle (adapter has left-hand threads ).

Torque the adapter to 35 to 45 in-lbs (4 to 5 N S m).

Assembled View

2

1

2

P

2 N

3

4

C

7

E

6

02452A

1

Apply low-strength thread sealer to the screw threads.

2

Apply grease to the entire length of the fluid tube plastic extension (N).

3

Apply low-strength thread sealer to the bottom 1/4”

(6 mm) of the threads. Tighten the top fluid tube nut 1/4 to 1/2 turn past hand-tight.

4

When tightening the bottom fluid tube nut, make sure the top fluid tube nut remains tightened.

5

Fig. 3

Apply high strength thread sealer to the left-hand fitting threads. Torque to 35–45 in-lbs (4–5.1 N

S m) .

A

4

10

9

3

1

G 5

C

7

E

G

1

3

02453A

Fig. 4

The kit includes the following parts:

Ref.

No.

Part No.

Description Qty.

3

4

6

1

2

7

8

9

10

189–034 TRIGGER, four-finger

189–023 TAB, finger

236–161 BRACKET, 4 finger

112–324 SCREW, mach.; 4–40 x 0.25”

205–264 FILTER, fluid

236–162 TUBE ASSY, fluid

217–115 GREASE

188–878 FITTING, barb

106–555 O-RING, Viton r

Manual Change Summary: Deleted air fitting, Part

No. 189–191 (11), from the kit.

1

1

1

1

1

1

1

1

1

Sales Offices: Atlanta, Chicago, Dallas, Detroit, Los Angeles, Mt. Arlington (N.J.)

Foreign Offices: Canada; England; Korea; Switzerland; France; Germany; Hong Kong; Japan

GRACO INC.

P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

PRINTED IN U.S.A. 308–320 Revised 3/94

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