Replacement Part List
Table Of Contents
10 3A5572B EN
Prime/Spray Valve and 
Handle Replacement
1. Unplug power cord (22) and perform 
Pressure Relief Procedure, page 1.
2. Lower Prime/Spray Valve to SPRAY 
position.
3. Remove pin (33b) with pin punch and 
hammer.
4. Remove Prime/Spray Valve handle 
(33a).
5. Remove valve stem assembly (33) from 
pump housing (1). Be sure gasket (C) 
and seat (D) do not stay in pump housing 
(1).
6. Apply sealant to threads of new valve 
stem assembly (33). Install valve 
assembly in pump housing. Torque to 
220-250 in-lb (24.9-28.2 N•m).
7. Insert end of pin punch through hole in 
Prime/Spray Valve handle and valve 
stem to align.
8. Install pin (33b) through aligned holes. 
Tap pin through with hammer. End of pin 
will be flush with top of hole in 
Prime/Spray Valve handle when 
correctly installed.
9. After assembly is complete, perform 
Assembly Verification, page 13.










