Cleaning The Spray Gun Components; Inlet / Outlet Valves - WAGNER Paint Crew 770 Owner's Manual

Cleaning the Spray Gun Components

1. Perform Pressure Relief Procedure,
gun from the paint hose using adjustable wrenches.
2. Remove filter (a) from spray gun (refer to
Spray Gun Filter, page 8). Remove spray tip (b) from spray
guard assembly.
3. Clean spray tip (b) and filter (a) with a soft-bristled brush and
the appropriate cleaning solution. Be sure to remove and
clean the washer (c) and saddle seat (d) located in the rear of
the spray guard assembly.
4. Pour a few drops of household oil inside the gun housing (see
area indicated below by arrow).
5. Reassemble spray gun. Install gun filter tapered-end first,
and install spray tip (b), saddle seat (d) and washer (c), and
replace spray guard assembly.
6. Thread the paint hose back onto the spray gun. Tighten with
a wrench.
IMPORTANT! If you cleaned your pump using mineral spirits, it is recommended that you flush the pump again using
warm, soapy water to prepare it for storage. Repeat steps 12-15 in Cleanup (previous page).
Inlet Valve -
Cleaning or servicing the inlet valve may be required if the unit has priming problems. This may be
caused by improper cleaning and/or storage. Replacement kits may be ordered by calling customer service.
1. Remove the inlet filter from the bottom of
the hopper. You may need to use a
screwdriver to pry the filter loose.
2. Insert the inlet valve tool into the inlet
fitting. Twist counter-clockwise and
remove from its housing. You willl need
to attach the inlet valve tool to a
ratchet wrench extension in order to
remove it.
3. Inspect the three inlet fitting O-rings on
the inlet fitting. Clean or replace, and
lubricate with household oil. DO NOT
remove the O-rings on the inlet fitting
to clean them. Remove ONLY if you
plan to replace them.
4. Retrieve the inlet valve and the inlet valve
O-ring from the inlet fitting housing.
Clean or replace and lubricate the O-ring
with a light household oil.
5. Set the inlet valve O-ring back into the
housing, and set the inlet valve on top of it.
6. Replace inlet fitting into the housing.
Tighten with the inlet valve tool and
ratchet.
English
page 5. Remove spray
Unclogging the

Inlet / Outlet Valves

Inlet
fitting
O-ring
Inlet
fitting
O-ring
Inlet
fitting
Inlet
fitting
O-ring
Inlet
valve
Inlet
valve
O-ring
10
(c)
(d)
(b)
Outlet valve
-
Replacement of the outlet valve
may be necessary if your spray performance
remains poor after having performed all the steps
contained in the Spraying Troubleshooting section
of this manual. Replacement valves are available
by calling customer service.
1. Unscrew the outlet
valve from the outlet
valve housing using
an adjustable
wrench.
2. Inspect the inside of
the outlet valve
housing. Remove
any accumulated
paint.
3. Replace with a new outlet valve. Tighten into
outlet valve housing with an adjustable wrench.
(a)