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 10.
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
syphon
assembly
(#342}
by
pulling
up
on
the
hose
and
turning
·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
disass~mbling
the Fluid Section. It is possible that the
valves 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" allen wrench to remove the Foot Valve
Mount (#316).
'
8.
Place a 3/4" socket on the Outlet Valve Housing
and Seat (#312) and remove.
9.
Clean out all debris. Examine Valve and Seat. If
damaged, replace.
1
0.
Reassemble and test unit. Should unit not
perform properly consult the Troubleshooting
Guides on pages 14 & 15 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 (#312) while piston assembly (#315) is
still
attached to pump. This will prevent the piston from
rotating.
12. Remove valve retainer (#310) 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 (#309,
#31
0,
#311 & #312)
to piston
#308 and secure tightly with a wrench.
PACKING REPLACEMENT
14. Remove screws #306 with a 3/8" allen wrench
and slide pump section down so that the piston is
clear to slide off.
15. Remove oil cup (#301) and slide piston
down through pump mount assembly (#305)
by
25
lightly tapping on top of piston assembly ( #315).
Clean and inspect piston for wear. Replace if
necessary.
16. Remove packings (#304 & #307) from pump
mount assembly (#305), and replace with a new
set.
Always
insert
packings
with
the
raised side
facing
into
pump
mount
assembly.
17. Reattach oil cup (#301) by lining up dowels. Make
sure that the recessed section is facing up and that
upper guide
(#302) is cleaned and undamaged.
18.
Insert assembled pieces (#303, #304, #305) and
#307 into a·vice, leaving enough room to slide
piston through bottom of pump mount assembly
(#305).
19. 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) and tap lightly with a rubber
mallet on bottom of piston until inserted.
20. 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.
IMPORTANT: NEVER USE A WRENCH ON THE
PISTON ITSELF. THIS COULD CAUSE DAMAGE TO
THE
PISTON AND CAUSE LEAKAGE.
21. Slide assembled parts #303, #304, #305, #307
and #315 onto connecting rod and secure with
screws #306. NOTE: Packing does not need to be
adjusted.
22 Reattach lower foot valve assembly
(#330) with
allen screws (#321) and secure.
23. Reattach pump syphon tube assembly (#335),
and rotate to correct position.
24. Reattach syphon hose and tighten securely.
NOTE: Repacking Kit (702-130} & Rebuilding
Kit
(702-140) are
available. For
best
results use all parts supplied
in
these kits.
