Replacing The Electronic Pressure Control (Epc) Assembly; Replacing The Slider Assembly And Slider Housing - Titan ADVANTAGE GPX 165 Owner's Manual

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,
PTFE 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.
Gear Housing
Fluid
Hose
Fitting
Cart
Filter Assembly
Hex Screw
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.
© Titan Tool Inc. All rights reserved.
Transducer
Filter
Assembly
11
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 0507958 or equivalent when working on
electronic pressure control.
1. Perform the Pressure Relief Procedure.
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.
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
Front
pin forward through
Cover
the slider assembly
Screw
and piston. The
connecting pin will Front
Cover
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.
8. Using a 2 1/4" wrench, loosen the fluid section jam nut. Turn
the fluid section counterclockwise by until it disengages from
the slider housing.
EPC Assembly Screw
EPC Assembly
EPC
Housing
EPC
Board
Pump
Housing
Slider
Assembly
Slider
Housing
Connecting
Pin
Retaining
Ring
Fitting
Jam Nut
Fluid
Section
English