MAINTENANCE
CLEANING VALVES
Follow these procedures when encounter- ing problems indicated in the trouble shoot- ing section.
Removing and Cleaning Inlet Valve
1.Be sure sprayer is off.
2.Using a 27 millimeter socket or box end wrench, remove the inlet valve assembly.
Remove
Inlet Valve
Figure 45- Removing Inlet Valve
3.Test movement of the valve by pushing on it from the open end of the valve housing with the eraser end of a pencil or a screwdriver. It should move about 1/16 inch. If it doesn't move, it is probably full of dry paint or other debris and should be cleaned or replaced.
Figure 46 - Test Movement of Valve
NOTE: The inlet valve must be oiled after every job. This will reduce or eliminate priming problems the next time the sprayer is used. See Figure 43.
4.Thoroughly clean the valve assembly with solvent and brush.
5.A properly seated valve filled with water and held vertically will not drip out the bottom of the valve. If you have properly cleaned the valve and water drips out the bottom, the valve is worn and needs to be replaced.
6.Install cleaned or new valve in the pump block and then fill the valve with light oil or solvent.
7.If none of the above steps work, see Troubleshoot- ing.
Cleaning and Servicing Outlet Valve
It may be occasionally necessary to remove and clean the outlet valve or replace normal wear parts inside the valve. See Figures 47 and Figure 48.
1.Remove outlet cap with adjustable wrench.
Outlet Valve
Figure 47 - Removing Outlet Valve
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