Maintenance - Graco 238338 Operation Manual

Maintenance

Maintenance
Clean Dispensing Valve and
System Daily
Clean the outside of the valve by wiping with a soft cloth
dampened with a compatible solvent.
Never immerse the entire dispensing valve in solvent.
Immersing in solvent removes lubricants and can
damage packings.
To remove a hardened particle from the orifice, blow air
through the orifice from the front.
Oil Dispensing Valve Daily
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).
Service
Needle, Seat and Packings
To clean or replace the needle, seat or packings, pro-
ceed as follows:
1. Follow Pressure Relief Procedure on page 4.
6
NOTICE
ti16188b
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.
ti16182a
ti16179a
ti16180a
ti16192a
ti16184b
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