Graco 24G979 用户手册

Clean the outside of the valve by wiping with a soft cloth 
dampened with a compatible solvent. 

To remove a hardened particle from the orifice, blow air 
through the orifice from the front. 

Before each use, lubricate with a spray of oil inside the 
protection tube (13) to prevent fluid buildup on these 
parts. Any buildup could damage the valve packings 
(16, 17, 18).

To clean or replace the needle, seat or packings, pro-
ceed as follows:

1. Follow 

Pressure Relief Procedure on page 4.

2. Remove valve housing:

a. Remove cap and spring.

b. Loosen nut.

c. Pull down housing and needle assembly to 

expose needle shaft.

d. Slide needle through air piston to remove. 

3. Remove retaining nut.

Never immerse the entire dispensing valve in solvent. 
Immersing in solvent removes lubricants and can 
damage packings. 

ti16188b

ti16182a

ti16179a

ti16180a

ti16192a

ti16184b