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11
5. Using a 7/8” open-end wrench, loosen and remove
the fluid hose from the fitting on the bottom of the filter
assembly.
6. Using a 9/16” open-end wrench, loosen and remove the
return hose from the bottom of the filter assembly.
7. Using a 1/2” socket, remove the two hex screws that
secure the filter assembly to the cart.
8. Lift the filter assembly off the cart so that the transducer
tube moves out of the hole in the gear housing. Gently
pull the transducer wire through the housing until it is fully
disengaged from the hole.
9. Mount the filter assembly in a vise for easy access to the
transducer.
IMPORTaNT: Do not over-tighten the vise.
10. Using a 3/4” open-end wrench, turn the transducer nut
counterclockwise to remove the transducer from the filter
housing.
11. Locate the new transducer. Make sure that there is a
white, Teflon o-ring on the end of the transducer that gets
inserted into the filter housing.
12. Insert the transducer into the filter housing port. Rotate
the transducer nut clockwise to tighten it into the filter
housing. Torque the nut to 360–400 in./lbs.
13. Remove the filter assembly from the vise.
Transducer
Filter Assembly
Hex Screw
Gear Housing
Filter
Assembly
Fluid
Hose
Fitting
Cart
14. Insert the phone jack-style connector on the new
transducer wire into the hole in the gear housing from
which the old transducer wire was removed. Push the
wire and connector until the connector is visible in the
EPC housing.
15. Gently pull the wire into the EPC housing while moving
the filter assembly to its mounting point on the cart. Guide
the end of the transducer tube into the hole in the gear
housing.
16. Mount the filter assembly to the cart using the two hex
screws and lock washers. Torque the screws to 100–130
in./lbs.
17. Using a 7/8” open-end wrench, attach the fluid hose to
the fitting on the bottom of the filter assembly. Tighten
securely.
18. Using a 9/16” open-end wrench, attach the return hose to
the bottom of the filter assembly. Tighten securely.
19. Plug the phone jack-style connector on the transducer
wire into the socket on the EPC board from which the old
connector was removed.
20. Carefully place the EPC assembly over the EPC housing
taking care not to pinch any wires.
21. Install the four screws that secure the EPC assembly to
the EPC housing. Tighten securely.
22. Take the sprayer to a Titan Authorized Service Center for
re-calibration.
23. After re-calibration, pressurize the system and check for
leaks.
Replacing the Electronic Pressure control (EPc)
assembly
Electrostatic discharge (ESD) potential could cause
damage to electronic pressure control. use Titan
ESD wrist strap P/N 700-1037 or equivalent when
working on electronic pressure control.
1. Perform the Pressure Relief Procedure.
EPC
Housing
EPC Assembly Screw
EPC Assembly
EPC
Board
2. Using a Phillips
screwdriver, remove
the four screws that
secure the electronic
pressure control (EPC)
assembly to the EPC
housing. Carefully
remove the EPC
assembly from the
housing. Gently move
the assembly away
from the sprayer and
allow the assembly to hang from the housing.
3. Remember the locations of all the wire connections on the
EPC board (refer the electrical schematic located in the
Parts List section of this manual). If necessary, label all
the connections so that they can be replaced in their exact
location when the assembly is replaced.
4. Disconnect all the wires from the EPC board.
5. Connect all the wires to the new EPC assembly board
(refer to the labels created earlier in this procedure or
the electrical schematic in the Parts List section of this
manual).
6. Carefully place the EPC assembly over the EPC housing
taking care not to pinch any wires.
7. Install the four screws that secure the EPC assembly to
the EPC housing. Tighten securely.
8. Take the sprayer to a Titan Authorized Service Center for
re-calibration.
Replacing the Slider assembly and Slider
housing
1. Start the engine (refer to the procedures in the Operation
section of this manual). Turn the pressure control knob
clockwise to its maximum pressure setting.
2. Toggle the sprayer ON/OFF switch between the ON and
OFF positions in short bursts until the slider assembly
stops in a position where the fluid section connecting pin
and retaining ring are visible through the slot in the slider
housing.
3. Turn off the engine and perform the Pressure Relief
Procedure.
Connecting
Pin
Fitting
Retaining
Ring
Slider
Assembly
Pump
Housing
Front
Cover
Screw
Slider
Housing
Jam Nut
Fluid
Section
Front
Cover
4. Using a Phillips
screwdriver,
remove the four
front cover screws.
Remove the front
cover.
5. Slide the retaining
ring up on the
slider assembly
to expose the
connecting pin.
6. Push the
connecting pin
forward through
the slider assembly
and piston. The
connecting pin will
fall out from the
rear window of the
slider housing where it can be retrieved.
7. Using a 7/8” open-end wrench, loosen and remove the
fluid hose from the fitting on the back of the fluid section.
