Servicing The Fluid Section - Titan SPEEFLO PowrLiner 550 Manual Del Propietário

Servicing the Fluid Section

Use the following procedures to replace the seals and repack the fluid
section.
NOTE: Repacking kit P/N 759-365 is available. For best
results use all parts supplied in this kit.
Disassembling the Fluid Section
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. Remove the suction set.
2. Remove the front cover and the three (3) screws that secure it
using a T20 Torx head driver.
3. Remove the yoke screw and washer that secures the dowel
pin. The dowel pin connects the yoke to the piston.
4. Using a pliers, pull the dowel pin out.
5. Rotate the pump shaft so the piston is in the top dead center
position. This can be done by pushing on the yoke. This is
required to disassemble all the parts.
6. Unscrew and remove the Sureflo Valve assembly (refer to the
Cleaning the Sureflo Valve procedure in the Cleanup section
of this manual).
7. Remove the piston assembly by pushing down on the piston
near the yoke.
8. Unscrew and remove the top nut using an adjustable wrench.
9. Remove the worn seal using a flat head screwdriver or punch.
Remove the top seal from the top by pressing against the
side of the seal and popping it out. Be sure not to scratch the
housing where the seals are located.
10. Clean the area where the new seals are to be installed.
Assembling the Fluid Section
1. Lubricate the new top seal with Piston Lube (P/N 314-480) or
light household oil and place the seal by hand with the cup
side of seal down into the top port of the housing.
2. Place a small amount of anti-seize on the threads of the top
nut. Place the top nut into the top of the housing and tighten
with an adjustable wrench. This will drive the top seal into the
correct position.
3. Lubricate the seal on the piston/
seal assembly similar to the
top seal. Place the piston/seal
assembly into the bottom of the
housing. Insert the insertion tool
and push into position to properly
seat the piston/seal. Remove the
insertion tool.
4. Install the new O-ring on the
Sureflo Valve assembly, lubricate
with Piston Lube (P/N 314-480),
thread into the bottom (inlet) of the housing, and tighten with
an adjustable wrench. This will drive the bottom seal into the
correct position.
5. Align the piston with the yoke. Be careful not to damage the
piston.
6. Apply any type of non-silicone household grease to the piston
and yoke area to prolong life. Apply to the holes in the yoke
where the dowel is inserted.
7. Install the dowel pin to connect the yoke to the piston. The
piston may have to be moved up or down to align with the
yoke.
8. Install the yoke screw and washer to secure the dowel pin.
9. Turn pump right side up and apply a few drops of Piston Lube
or light household oil between the top nut and piston. This
will prolong the seal life.
English
10. Install front cover and three (3) screws.
11. Replace Sureflo Valve and install the suction set.
12. Turn on the sprayer by following the procedure in the
"Operation" section of this manual and check for leaks.
Piston/seal
assembly
DO NOT attempt
to remove the seals
from the piston.
Sure o
assembly
Insertion
Tool
12
Ball guide
Outlet ball
Outlet seat
Outlet valve
O-ring
Inlet ball
Valve
Inlet O-ring
Inlet seat
© Titan Tool Inc. All rights reserved.
Top nut
Top seal
(cup down)
Yoke
Washer
Screw
Dowel