Pump Section Repair and
Service
WARNING: Before proceeding, follow the Pressure
Relief Procedure outlined on
Page
5.
Additionally,
follow all
other warnings to reduce the risk of
an
injection injury, injury from moving parts
or
electric
shock. Always unplug the sprayer before servicing!
1.Remove Safety Plate (#43). Figure 6 (Page 20).
2. Stop the sprayer at the top of its stroke so that the
piston is in its highest position. Turn off
& unplug the
sprayer.
3. Remove the bypass hose assembly (#341) with a
wrench and
the
syphon assembly (#342) by pulling up
on
the
hose
and turn counterclockwise.
4. Tilt pump back for easy access to pump section.
SEAT SERVICE & REPAIR
The design of Titan's Epic Fluid Section allows access to
the inlet and outlet valves and seat without completely
disassembling the Fluid
Section.
It
is possible that the
Balls may not seat properly because of debris stuck in
the inlet
or
outlet seat. Follow the instructions below for
access
to
those areas.
5.
Place a wrench
on
the Foot Valve ( #320) and
unthread.
6.
Clean out all debris. Examine Valve and Seat.
If
damaged replace. Continue if necessary or reinstall.
7. Use a
5/16
11
allen wrench to remove the Foot Valve
Mount {#316).
8. Place a
3/4
11
socket on the Outlet Valve Housing and
Seat (#312) and remove.
9. Clean out
all debris. Examine Valve and Seat.
If
damaged replace.
10. Reassemble and test unit. Should unit not perform
properly consult the Troubleshooting Guides on pages 13
&
14
of this manual
or
continue with the Repair and
Packing Replacement instructions below.
SERVICE/REPLACEMENT
Of
UPPER (OUTLET) VALVE
11. To clean
or
replace upper valve, remove valve
housing assembly (#311) while piston assembly (#315) is
still attached to pump. This will prevent the piston from .
rotating.
12. Remove valve retainer (
#31
0) and outlet valve
(#311). Clean and inspect along with housing (#312).
Reverse
or
replace if worn
or
damaged. Use fine
sandpaper to remove dried paint.
13. Reattach assemblies
#31
0, #311, and #312 to piston
#308, and secure tightly with a wrench.
25
PACKING REPLACEMENT
14.F~emo~e
outlet mounting bolt (#263) from rear of pump
sect1on
w1th
a wrench. Refer to Figure 8 Page 22.
15. Remove screws
#306 with a 3/8
..
allen wrench and
slide pump section down
so
that the piston is clear to
slide off.
16.
Inspect polyethylene seal (#268) on outlet manifold
(#266), after removing pump section. Clean
or
Replace.
17. Remove oil cup
(#301) and slide piston down through
p~mp
mount assembly (#305) by lightly.tapping on top of
ptston assembly (#315). Clean and inspect piston for
wear. Replace if necessary.
18. Remove packings
(#304 & #305) from pump mount
assembly
(#305), and replace with a new set. Always
. insert packings with the raised side facing into pump
mount assembly.
19. Reattach oil cup
{#301) by lining up dowels. Make
sure that the recessed section is facing up and that upper
guide #2 is cleaned and undamaged.
20. Insert assembled pieces #303, #304, #305 and #307
into a vice, leaving enough room to slide piston through
bottom of pump mount assembly (
#305).
21. Using the piston guide tool (included in repacking kit)
which slides over the top
of
the piston assembly (#315) ,
insert the piston though bottom of pump mount
(#305) ยท
and tap lightly with a rubber mallet on bottom of piston
until inserted.
22. Align flats on piston
so
that it is perpendicular to
assembly
(#305) and will line up when reattaching to
connecting rod. This can be achieved by rotating the
piston by placing a wrench on the valve housing
assembly (#312) and turning.
IMPORT ANT: NEVER
USE
A WRENCH ON THE PISTON ITSELF. THIS
COULD CAUSE
DAMAGE
TO
THE PISTON AND
CAUSE LEAKAGE.
23.
Slide assembled parts #303, #304, #305, #307 and
#315 onto connecting rod and secure with screws
#306.
Be certain that outlet hold is facing towards outlet
manifold (#266).
NOTE: Packing does not need to be
adjusted.
24.
Screw outlet mounting bolt ( #263) into back of pump
section and tighten securely with a wrench. Be sure that
the polyethylene gasket ( #268) is in place.
25. Reattach lower foot valve assembly
(#330) with allen
screws (#321) and secure.
26. Reattach pump syphon tube assembly ( #335), and
rotate to correct position.
--
27. Reattach pressure relief tube and syphon hose and
tighten securely.
NOTE: Repacking
Kit
702-130
is
available.
For
best
results
use
all
parts
supplied
in
the
Repacking Kit.
