Titan 740ix Owner'S Manual Download

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Repacking the Fluid Section

1. Remove the foot valve assembly using the steps in the

“Servicing the Valves” 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 gear box
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.
9. Locate the new upper and lower packings and pack the

areas between the packing lips with grease. Lubricate the
o-rings on the exterior of the packings with grease.

10. Insert the upper packing into the

top of the pump block with the
raised lip on the packing facing
down.

11. Insert the piston guide into the

retainer nut. Thread the retainer
nut into the pump block until it is
hand tight.

12. Pre-form the lower packing using the lower packing sizing

tool (included in the repacking kit).

13. Insert the lower packing partially

into the bottom of the pump
block so that the side that has
the o-ring closest to the face of
the packing faces up.

14. Push the lower packing into

position using the lower packing
insertion tool (see Fluid Section
Assembly parts list for lower
packing insertion tool P/N).

15. Inspect the piston rod for wear

and replace if necessary.

16. Place the piston insertion tool (included in the repacking

kit) over the top of the piston rod.

NOTE: Coat the piston insertion tool and the piston

rod with grease before inserting them into the
pump block.

Install lower packing with

the side that has the o-ring

closest to the top of the

packing facing up.

Closer

Top

Install upper packing

with raised lip and

o-ring facing down.

O-Ring

Raised Lip

Slider

Assembly

Retainer

Nut

Piston

Guide

Upper

Packing

Pump

Block
Lower

Packing

Pump Block

Mounting

Screw

Piston Rod

T-Slot

Transducer

Gasket

NOTE: The outlet valve does not need to be

disassembled from the piston rod for this
procedure.

NOTE: The factory-installed packings are black in

color. The replacement packings in the
packing replacement kit are white.

17. Insert the piston rod into the bottom of the pump block,

through the lower packing, through the upper packing, and
out through the retainer nut. Using a rubber mallet, tap
the bottom of the piston rod lightly until the piston rod is in
position in the pump block.

18. Remove the piston insertion tool from the top of the piston

rod.

19. Using a wrench, tighten the retainer nut into the pump

block. Torque to 25-30 ft. lbs.

20. Slide the top of the piston rod into the T-slot on the slider

assembly.

21. Position the pump block underneath the gear box housing

and push up until it rests against the gear box 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.

22. Thread the pump block mounting screws through the

pump block and into the gear box housing. Tighten
securely.

23. Reassemble the foot valve assembly into the pump block.

24. For High Rider units, thread the siphon tube into the foot

valve housing and tighten securely. Make sure to wrap
the threads on the siphon tube with

PTFE

tape before

assembly. Replace the return hose into the clamp on the
siphon tube.

25. For Low Rider units, insert the elbow on the suction set

assembly into the bottom of the foot valve housing.
Position the retaining clip up into the foot valve housing to
secure the suction set assembly.

26. Thread the return hose into the pump block and tighten

securely.