Replacing The Prime/Spray Valve - Titan SPEEFLO PowrLiner 550 Manual Del Propietário

Replacing the PRImE/SPRAy valve

Perform the following procedure using PRIME/SPRAY valve
replacement kit P/N 759-380.
Before proceeding, follow the Pressure Relief
Procedure outlined previously in this manual.
Additionally, follow all other warnings to reduce the
risk of an injection injury, injury from moving parts, or
electric shock.
1. Pry off the retaining clip from inside the recessed portion of
the valve knob. Remove the valve knob.
2. Slide the cam off of the stem/ball assembly.
3. Using a wrench, remove the hex nut from the pump head.
4. Remove the star washer, spring, and stem/ball assembly from
the pump head.
5. Using a 7/32" hex wrench, remove the stem/ball assembly seat
from the pump head.
Spring
6. Tighten the new stem/ball assembly seat into the pump head.
Use a 7/32" hex wrench. Torque to 6-8 ft./lbs.
7. Apply a light coating of hydraulic oil around the o-ring on the
new stem/ball assembly.
8. Push the stem/ball assembly into the stem/ball assembly seat
in the pump head.
9. Place the new spring and star washer around the stem/ball
assembly.
10. Slide the new hex nut onto the stem of the stem/ball
assembly, thread it onto the pump head, and tighten with a
wrench. Torque the nut to 12-14 ft./lbs.
11. Apply a light coating of grease to the top of the cam.
12. Slide the new cam onto the stem of the stem/ball assembly
and over the hex nut. The design of the cam will allow the hex
nut to fit inside the cam, causing the cam to lock in position.
NOTE: Position the cam on the hex
nut so that the tab on the side
of the cam is as close to the
12:00 position as possible.
13. Place the new PRIME/SPRAY
valve knob over the cam with
the pointer on the knob as close
to the 9:00 position as possible.
Make sure the knob is pushed
completely onto to the cam
(the knob should cover the cam
completely).
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Pump head
Seat
Stem/ball
assembly
Star washer
Cam
Hex nut
Valve knob
Retaining clip
Tab on cam in
12:00 position
Pointer on valve knob
in 9:00 position
SPRAY
NOTE: The knob is designed to allow 90º of movement
between the SPRAy and PRImE positions. The
inside of the knob has a 90º opening in it's
circumference where the tab of the cam should be
positioned to allow this movement. When placing
the knob with the arrow in the 9:00 position, make
sure that the tab on the cam is within the 90º
opening on the inside of the knob. Then, make
sure the knob is at the end of its movement in the
clockwise direction (this is the SPRAy position)
before continuing with this procedure.
Back of PRIME/SPRAY valve knob
90º Opening
14. Slowly turn the knob counterclockwise until the bottom of
the knob moves out to where it is flush with the bottom of the
cam (approximately 5–7º).
15. Place the retaining clip over the stem of the stem/ball
assembly where the stem passes through the recessed portion
of the knob.
16. Using a 5/16" (8mm) nut driver, push the clip into the recessed
portion of the knob with steady, even pressure until it stops.
ImPORTANT: Do not hammer or wiggle the clip into position. It
will damage the clip.
18. Turn the PRIME/SPRAY knob to the PRIME position.
19. Start up the sprayer and run water through the system to
check for leaks. If there are no leaks, the sprayer is ready to
use.
Tab
11
Cam positioned
with tab in
90º Opening
English