Repacking The Fluid Section - Titan IMPACT 400 Manual Del Propietário

repacking the Fluid Section

Disassembly
1. Rotate the pump shaft so the piston is in the top dead center
position. This can be done by moving the yoke.
2. Remove the yoke screw (14) and washer (15) that secures the
dowel pin (16). The dowel pin connects the yoke (17) to the
piston (18).
3. Using a pliers, pull the dowel pin (16) out.
4 Remove the piston assembly (18) by pushing down on the
piston near the yoke (17).
NOTE: Inspect the piston rod for wear and replace if
necessary. use piston assembly kit P/N 0532204a.
5. Unscrew and remove the upper bushing (19) using an
adjustable wrench.
6. Remove the worn seals using a flat head screwdriver or punch.
Remove the upper packing (20) from the top and the lower
packing (21) from the bottom by pressing against the side
of the seal and popping it out. Be sure not to scratch the
housing where the seals are located.
7. Clean the area where the new packings are to be installed.
reassembly
1. Slide the upper packing (20) off the grey sizing/insertion tool
(towards the tip) and install into the top of the pump housing
with the raised lip (23) facing down. Save the upper packing
sizing/insertion tool for use in step 6.
2. Place the upper bushing (19) into the top of the housing and
tighten with an adjustable wrench (torque to 300-360 in-lbs).
This will drive the upper packing (20) into the correct position.
3. Tilt the pump backwards so that it is laying on its back.
Remove the plastic wrap from the lower packing and red pre-
form tool.
ImPOrTaNT: cut the plastic wrap with a scissors. Do not cut
plastic wrap with a utility knife as damage can occur to the
O-rings.
4. Slide the lower packing (21) off the pre-form tool (towards the
top). Insert the lower packing partially into the bottom of the
pump block so that the beveled edge (24) of the packing faces
up.
5. Thread the inlet valve housing (22) back into the bottom
of the pump housing by hand to drive the lower packing
into place. Once tightened as far as it will go, unthread and
remove again.
6. Place the grey insertion tool over the top of the piston
assembly (18). Coat the piston guide tool and the piston rod
with grease before inserting them into the pump housing.
7. Insert the piston assembly into the bottom of the pump block
and push upward until the hole in the piston is aligned with
the hole in the yoke (17). Discard insertion tool
ImPOrTaNT: make sure the piston is inserted precisely through
the middle of the upper and lower packing. coming in at an
angle will bump the piston into the sides of the packings and
cause damage.
8. Apply any type of household grease to the piston and yoke
area to prolong life. Apply to the holes in the yoke where the
dowel (16) is inserted.
9. Install the dowel pin (16) to connect the yoke (17) to the
piston (18). The piston may have to be moved up or down to
do this.
10. Install the yoke screw (14) and washer (15) to secure the dowel
pin.
11. Turn pump right side up and apply a few drops of Separating
Oil or light household oil between the upper bushing (19) and
piston (18). This will prolong the seal life.
English
12. Reinstall the inlet valve assembly (22). Tighten by hand until
it cannot be tightented further, and then tighten another 1/2
turn with a wrench. This will automatically secure the lower
packing (21) into place.
13. Install front cover and three screws.
14. Reinstall the pressure control knob. Secure with the screw.
NOTE: If the knob bottom (25) has been removed from the
pressure switch assembly, it must be re-calibrated
prior to reinstallation. Follow the "resetting the
Pressure Switch Timing" instructions.
25
17
19
20
15
14
16
18
23
24
21
22
14
20
18
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