Replacing The Prime/Spray Valve; Servicing The Fuid Section - Titan 552600 Service Manual

IMPACT 1040
2.5

REPLACING THE PRIME/SPRAY VALVE

Perform the following procedure using PRIME/SPRAY valve
replacement kit P/N 700-248.
1.
Push the groove pin out of the valve handle.
2.
Remove the valve handle and the cam base.
3.
Using a wrench, loosen and remove the valve housing assembly.
4.
Make sure the gasket is in place and thread the new valve housing
assembly into the filter block. Tighten securely with a wrench.
5.
Place the cam base over the valve housing assembly. Lubricate
the cam base with grease and line up the cam with the filter block
using the dowel pin.
6.
Line up the hole on the valve stem with the hole in the valve
handle.
7.
Insert the groove pin into the valve handle and through the valve
stem to secure the valve handle in position.
Gasket
Valve Housing
Assembly
Dowel Pin
Cam Base
Valve
Groove Pin
Handle
When using "HOT" solvents, replace Viton o-ring
i
with optional PTFE o-ring (700-897). Install with
o-ring tool (700-890).
Filter
Housing
Valve Stem
Viton o-ring
2.6
SERVICING THE FLUID SECTION
Use the following procedures to service the valves and repack the
fluid section. Perform the following steps before performing any
maintenance on the fluid section.
1.
Loosen and remove the foot valve housing from the lower
housing.
2.
Clean out any debris in the foot valve housing and examine the
housing and the foot valve seat. If the seat is damaged, reverse
or replace the seat.
3.
Using two wrenches, hold the upper housing at the wrench flats
with one wrench and loosen the lower housing with the other.
Remove the lower housing.
4.
Using a 3/8" hex wrench, loosen and remove the outlet valve
retainer from the piston rod.
Before proceeding, follow the Pressure Relief
Procedure outlined previously in this manual.
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!
5.
Clean out any debris and examine the retainer and outlet valve
seat. If the seat is damaged, reverse or replace the seat.
6.
Remove, clean, and inspect the outlet valve cage and outlet valve
ball. Replace if they are worn or damaged.
7.
Reassemble the valves by reversing the steps above.
SERVICING THE VALVES
The design of the fluid section allows
access to the foot valve and seat as well
as the outlet valve and seat without
completely disassembling
section. It is possible that the valves may
not seat properly because of debris stuck
in the foot valve seat or outlet valve seat.
Use the following instructions to clean the
valves and reverse or replace the seats.
1.
Loosen and remove the foot valve
housing from the lower housing.
2.
Clean out any debris in the foot valve
housing and examine the housing
and the foot valve seat. If the seat
is damaged, reverse or replace the
seat.
3.
Using two wrenches, hold the upper housing at the wrench flats
with one wrench and loosen the lower housing with the other.
Remove the lower housing.
MAINTENANCE
Upper
Housing
Lower
Housing
Foot Valve
the fluid
Cage
Foot Valve
Ball
Foot Valve
Seat
O-ring
Viton
O-Ring
PTFE
Back-Up
Ring
Foot Valve
Housing
9