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Service, Warning – Graco Inc. 241705 User Manual

Page 10

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10

Service

To reduce the risk of serious injury from fluid injec-

tion or splashing, always follow the Pressure

Relief Procedure on page 5 before servicing the

gun.

WARNING

Repair Notes

The needle and seat are available only as a kit which

includes items 2a to 2e.

The Standard Needle and Seat Kit, 237398, has the

number 090 stamped on the needle and seat.

A Non-diffused Needle and Seat Kit, 237260, has the

number 125 stamped on the needle and seat. It is rec-

ommended only for use with mastics, sealers and

other high viscosity materials which have fillers that

cannot pass through the standard seat’s diffuser.

Use high quality, general purpose grease where

grease is indicated.

Disassembly

NOTE: If replacing only the needle and seat, Step 4

and 5 are not required. However, removing them

allows you to clean the gun more thoroughly.

1. Relieve pressure.

Fig. 6

30

21

A

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2. Disconnect the fluid hose (A). Remove the tip

guard (30). Unscrew the spring screw (21) about

1/4 in. (7 mm) to release spring tension.

See Fig. 6.

Fig. 7

2a

2b

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3. Unscrew the valve seat (2a). Remove the gasket

(2b). See Fig. 7.

Fig. 8

29

28

27

18

25

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4. Remove one e-clip (27). Push out the pin (18).

Remove the screw (29), pivot pin (28), and trigger

(25). See Fig. 8.

Fig. 9

24

04733

5. Remove the screws (24). See Fig. 9.