Repacking The Fluid Section - Titan IMPACT 440 Manual De Mantenimiento

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Repacking the Fluid Section

1. Remove the foot valve assembly using the steps in the
"Servicing the Valves" procedure above.
NOTE: The outlet valve does not need to be disassembled
from the piston rod for this procedure.
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 slider
assembly.
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 retainer with a wrench until secure.
NOTE: Use the T-slot on the slider assembly to hold the
piston rod in position while securing the outlet
valve retainer.
IMPORTANT: 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 slider
assembly.
15. Position the pump block underneath the pump housing and
push up until it rests against the pump housing.
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. For High Rider cart units, thread the siphon tube into the foot
valve and tighten securely. Make sure to wrap the threads on
© Titan Tool Inc. All rights reserved.
Slider
assembly
Retainer
nut
T-Slot
Piston
guide
Upper
packing
Pump
block
Pump block
mounting
screw
Lower
packing
Piston rod
Install lower packing
with the beveled
edge facing up.
Beveled Edge
the siphon tube with PTFE tape before assembly. Replace the
return hose into the hose clip on the siphon tube.
19. For Skid and Low Rider units, insert the elbow on the siphon
assembly into the bottom of the foot valve housing. Push the
retaining clip up into the groove inside the foot valve housing
to secure the siphon assembly in position. 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 704-586 is available. For best
results use all parts supplied in this kit.
7
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805-000805-016805-019

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