Drain Valve - Graco GM 3000 Instructions-Parts List Manual

Drain
Valve
Repair
1.
Unscrew the spring retainer (43h) from the valve
INJECTION HAZARD
body. Remove the spring, washers and stemiball.
To reduce the risk of serious injury, Clean any debris from the ball or seat area.
whenever you are instructed to relieve
pressure, follow the
Pressure Relief
2. If replacing the gasket (43a)
or
seat (43b), pry out
Procedure
on oaae 12.
!,
j
the gasket.
~ ~~~~ ~ ~~~~
NOTE:
Whenever the gasket (43a) is removed, re-
place it with a new one.
A
Apply
thread sealant
n
Apply grease
3. Coat the O-ring (43d) with grease. Press the stem
2
lo lace
of base
into the valve body. Install the spring, washers and
spring retainer into the valve body.
4.
Place the seat (43b) in the valve body so the
lapped side is toward the ball. Apply a small
amount of grease to the new gasket (43a) and
install it in the valve body.
NOTE:
The gasket will protrude from the end of the
valve until the valve is tightened into pump, which
correctly seats the gasket.
Replacement
1. Apply a small amount of thread sealant onto the
valve (43) threads. Tighten the valve into the pump
. .
manifold to 185 in-lb (21 N.m).
c.
i
Fig.
11
2. Lightly grease the face of the base (44) and install
the base. Tum the stem so the pin hole is vertical.
1.
2.
3.
Turn the handie (46) to the closed oosition. Drive
3. Securely install the handle (46) and drive pin (45).
out the pin (45). Remove the handie.
Remove the base
(44).
INJECTION HAZARD
To reduce the risk of serious injury, keep
Unscrew the drain valve (43). The gasket (43a) the drain valve clean. Check drain valve
and seat (43b) will stay in the valve. operation before spraying.
22 308-620