Suction Hose; Drain Valve - Graco 235-699 Instructions Manual

SUCTION HOSE
WARNING
- 1
CAUTION
-1
T o reduce the risk of serious injury, follow the
Pressure Relief Procedure Warning on page
19
Misalignment or cross-threading will damage the
parts and/or create shavings which can cause the
before doing this procedure. Unplug the sprayer! O-ring (27) to leak.
1. Remove the drain hose (33) from the clip. Re-
move the front cover (13).
2. Pull upward on the hose (32) while unscrewing
it
from the inlet tube (38). The hose coupling (A)
threads will engage and the hose will separate
from the tube.
3.
Replace the O-ring (27) if it is worn or damaged.
4.
Lubricate the O-ring (27) and the inlet tube (38)
threads with light grease.
5.
Align the suction hose coupling with the threads of
the inlet tube (38). Tighten the hose onto the tube
at least
4
turns to ensure that the threads have
disenaaaed and can function as a swivel joint.
Note: Filler
not shown
DRAIN VALVE
WARNING
Repair
To reduce the risk of serious injury, follow the
Pressure Rellef Procedure Warning on page
19
1. Unscrew the spring retainer from the valve body.
Remove the spring, washers and stem/ball. Clean
before doing this procedure. Unplug the sprayer! any debris from the ball or seat area.
1.
Turn the handle (45) to the closed position. Drive
the gasket.
2. If replacing the gasket (42a) or seat (42b), pry
o u t
out the pin (44). Remove the handle.
NOTE 1 : Whenever the gasket (42a) is removed, re-
2.
Remove the base (43).
place it with a new one.
3. Unscrew the drain valve (42). The gasket (42a)
3. Coat the O-ring (42e) with grease. Press the
and seat (42b) will stay in the valve. stem into the valve body. Install the spring, wash-
ers and spring retainer into the valve body.
42a
4.
Place the seat (42b) in the valve body so the
lapped side is toward the ball. Apply a small
amount of grease to the new gasket (42a) and
install
it
in the valve body.
APPLY GREASE
NOTE 2: The gasket w i l l protrude from the end of the
valve until the valve is tightened into pump,
which correctly seats the gasket.
TORQUE INTO
Replacement
PUMP MANIFOLD
1. Apply
a
small amount of thread sealant (42e) onto
185
In-lb
(21
Nm)
the valve (42) threads. Tighten the valve into the
pump manifold to 185 in-lb (21 Nm).
2. tightly grease the face of the base (43) and install
the base. Turn the stem so the pin hole is vertical.
HANDLE SHOWN
45
Fig 34
IN CWSED
POSITION
lMul
3. Securely install the handle (45) and drive the pin
28 308-248
(44).