4.Clean out any debris and examine the valve housing
and seat. If the seat is damaged, reverse or replace
the seat.
5..Remove, clean, and inspect the upper cage and
upper ball. Replace if they are worn or damaged.
6.Reassemble the valves by reversing the steps
above.
Repacking the Fluid Section
NOTE:The factory-installed packings are black in
color. The replacement packings in the packing
replacement kit are white.
1.Remove the foot valve and outlet valve assemblies
using the steps in the ¡°Servicing the V alves¡±
procedure above.
2.Using 3/8¡± a hex wrench, loosen and remove the
two pump block mounting screws.
3.Pull the pump block down approximately 1/2¡±
from the pump housing.
4.Slide the pump block and piston rod forward until
the piston rod is out of the T-slot on the connecting
rod.
5.Slide the piston rod out through the bottom of the
pump block
6.Loosen and remove the retainer nut and piston
guide from the pump block.
7.Remove the upper and lower packings from the
pump block.
8.Clean the pump block and install the new upper and
lower packings. Refer to the illustration below for
proper packing orientation.
9.Inspect the piston rod for wear and replace if
necessary.
10.Reassemble the outlet valve assembly into the
piston rod. Tighten the outlet valve housing with a
wrench until secure.
NOTE: Use the T-slot on the connecting rod to
hold the piston rod in position while securing the
outlet valve housing.
Never use a wrench on the piston itself. This could
cause damage to the piston and cause leakage.
11. Insert the piston guide into the retainer nut.
Thread the retainer nut into the pump block until it is
hand tight.
12.Slide the piston guide tool (included in the
repacking kit) over the top of the piston rod and insert
the piston rod through the bottom of the pump block.
Using a rubber mallet, tap the bottom of the piston rod
lightly until the piston rod is in position in the pump
block.
NOTE:Coat the piston guide tool and the piston
rod with grease before inserting them into the
pump block.
13.Using a wrench, tighten the retainer nut securely.
14.Slide the top of the piston rod into the T-slot on the
connecting rod.
15.Position the pump block underneath the pump
housing and push up until it rests against the pump
housing.
Make sure the transducer is aligned properly with
the hole in the pump block during reassembly.
Improper alignment may cause damage to the
transducer gasket.
16.Thread the pump block mounting screws through
the pump block and into the pump housing. Tighten
securely.
17.Reassemble the foot valve assembly into the pump
block.
18.Insert the elbow on the suction set into the bottom
of the foot valve. Position the retaining clip into the
foot valve to secure the suction set assembly.
19.Thread the return hose into the pump block and
tighten securely.
20.Place the front cover on the pump housing and
secure in position using the four front cover screws.
21.Turn on the sprayer by following the procedure in
the ¡°Operation¡± section of this manual and check for
leaks.
NOTE:Repacking kit is available. For
best results use all parts supplied in this kit.
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