Routine Engine Maintenance
Daily
• Check and fill the gas tank.
• After the first 20 hours of operation, drain the oil and
refill with clean oil. Check the engine oil level and fill as
necessary.
Weekly
• Remove the cover of the air filter and clean the element.
Replace the element if necessary. If operating in an
unusually dusty environment, check the filter daily and
replace if necessary. (Replacement elements can be
purchased from your local Titan dealer.)
• After each 50 hours of operation: Change the engine oil.
Spark Plug
• Use only a (NKG) BR6HS or Champion RL86C plug.
• Gap the plug 0.020" – 0.030"
• Make sure to use a spark plug wrench when installing and
removing the plug.
cleaning or Replacing the Filters
Pump Filter
1. Loosen and remove the filter housing by hand. Pull the
filter out of the pump manifold.
2. Slip the filter off of the filter support spring.
3. Inspect the filter. Based on inspection, clean or replace
the filter.
4. Inspect the filter seal. Based on inspection, clean or
replace the filter seal.
5. Slide the new or cleaned filter over the filter support spring
with the adapter in place. Push the filter into the center of
the pump manifold.
6. Slide the filter housing over the filter and thread it into the
pump manifold until secure.
NOTE: The filter housing should be hand-tightened, but
make sure the filter housing is seated fully into
the pump manifold.
Adapter
Filter Support Spring
Filter Seal
Pump Manifold
Gun Filter
1. Pull the bottom of the trigger
guard forward so that it
comes loose from the handle
assembly.
2. Loosen and remove the handle
assembly from the gun head.
3. Pull the old filter out of the gun
head.
4. Slide the new filter, tapered
end first, into the gun head.
5. Make sure the handle seal is in
position and thread the handle
assembly into the gun head until secure.
6. Snap the trigger guard back onto the handle assembly.
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Filter
Housing
Filter
Spring
Filter
Gun
Housing
Filter
Handle
Seal
Handle
Replacing the PRIME/SPRay valve
Perform the following procedure using PRIME/SPRAY valve
replacement kit P/N 0507690.
1. Drive 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 from the pump manifold.
4. Make sure the gasket is in place and thread the new
valve housing assembly into the pump manifold. 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 pump manifold 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.
Dowel Pin
Valve Housing
Assembly
Groove Pin
Valve
Handle
Replacing the Sprayer ON/OFF Switch
1. Perform the Pressure Relief Procedure.
2. Using a Phillips screwdriver, remove the four screws that
secure the heat sink assembly to the housing. Carefully
remove the heat sink assembly from the housing. Gently
move the assembly away from the sprayer and allow the
assembly to hang from the housing.
3. Locate the bottom of the sprayer ON/OFF switch inside
the housing.
ON/OFF
Switch
Heat Sink
Assembly
Heat Sink
Assembly
Screw
4. Disconnect the switch wires from the sprayer ON/OFF
switch. Remember the locations of each of the two wires
(label the wires, if necessary).
5. Depress the mounting tabs on each corner of the sprayer
ON/OFF switch inside the housing and remove the switch
through the top of the housing.
6. Snap the new sprayer ON/OFF switch into the switch hole
in the housing.
7. Connect the two switch wires to the new sprayer ON/
OFF switch. Make sure the wires are connected to the
corresponding terminals from which they were removed
(refer to the labels created earlier in this procedure or
the electrical schematic in the Parts List section of this
manual).
8. Carefully place the heat sink assembly over the housing
taking care not to pinch any wires.
9. Install the four screws that secure the heat sink assembly
to the housing. Tighten securely.
9
Pump
Manifold
Gasket
Valve Stem
Cam Base
Relay
English