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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
Valves" procedure
above.
2. Using 3/8" a hex
wrench, loosen
Transducer
and remove the
Gasket
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.
Install upper packing
with raised lip and O-ring
facing down.
O-Ring
Raised Lip
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.
CAUTION
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.
© Titan Tool Inc. All rights reserved.
Connecting
Rod
Retainer
T-Slot
Nut
Piston
Guide
Upper
Packing
Pump
Block
Pump Block
Mounting
Screw
Lower
Packings
Piston Rod
Install lower packings
with raised lip and O-ring
facing up.
Raised Lip
O-Ring
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.
CAUTION
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 P/N 730-401 is available. For
best results use all parts supplied in this kit.
11
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