Maintenance; General Repair And Service Notes; Replacing The Motor; Replacing The Motor Brushes - Titan 640i Manual Del Propietário

Maintenance

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!

General Repair and Service Notes

The following tools are needed when repairing this sprayer:
Phillips Screwdriver
Needle Nose Pliers
Adjustable Wrench
Rubber Mallet
Flat-blade Screwdriver
1. Before repairing any part of the sprayer, read the
instructions carefully, including all warnings.
IMPORTANT: Never pull on a wire to disconnect it. Pulling
on a wire could loosen the connector from the wire.
2. Test your repair before regular operation of the sprayer to
be sure that the problem is corrected. If the sprayer does
not operate properly, review the repair procedure to
determine if everything was done correctly. Refer to the
Troubleshooting Charts to help identify other possible
problems.
3. Make certain that the service area is well ventilated in
case solvents are used during cleaning. Always wear
protective eyewear while servicing. Additional protective
equipment may be required depending on the type of
cleaning solvent. Always contact the supplier of solvents
for recommendations.
4. If you have any further questions concerning your TITAN
Airless Sprayer, call TITAN:
Customer Service (U.S.) .......................1-800-526-5362
Fax ................................................1-800-528-4826
Customer Service (Canada) ..................1-800-565-8665
Fax ................................................ 1-905-856-8496
Customer Service (International)...........1-201-337-1240
Fax ................................................1-201-405-7449

Replacing the Motor

1. Unplug the unit.
2. Loosen and remove the four motor cover screws.
Remove the motor cover.
3. Disconnect the black and red wires coming from the pump
housing. Disconnect the black and red wires from the
capacitors. Disconnect the black and red wires from the
motor.
4. Remove the capacitors from their mounting clip.
5. Loosen and remove the four motor mounting screws.
6. Pull the motor out of the pump housing.
NOTE: If the motor will not dislodge from the pump
housing:
• Remove the front cover plate.
• Using a rubber mallet, carefully tap on the
front of the motor crankshaft that extends
through the connecting rod.
7. With the motor removed, inspect the gears in the pump
housing for damage or excessive wear. Replace the
gears, if necessary.
8. Install the new motor into the pump housing.
NOTE: Rotate the motor fan manually until the
armature gear engages with the mating gear in
the pump housing.
9. Secure the motor with the four motor mounting screws.
English
3/8" Hex Wrench
5/16" Hex Wrench
1/4" Hex Wrench
3/16" Hex Wrench
5/32" Hex Wrench
8
10. Push the capacitors into their clip on the new motor.
11. Reconnect the wires (refer to the electrical schematic in
the Parts List section of this manual).
12. Slide the motor cover over the motor. Secure the motor
cover with the four motor cover screws.
Pump Housing
Motor
Capacitors
Shroud
Shroud Screw
Motor Cover Screw

Replacing the Motor Brushes

Perform this procedure using Motor Brush Kit P/N 704-276.
1. Loosen and remove the four motor cover screws.
Remove the motor cover.
2. Loosen and remove the two shroud screws. Remove the
shroud.
3. Using a small screwdriver, pry off the two plastic brush
covers.
4. Disconnect the black and red wires from the motor
brushes. Remove the motor brushes.
5. Install the new motor brushes and snap on the plastic
brush covers.
6. Reconnect the black and red wires from the motor
brushes (refer to the electrical schematic in the Parts List
section of this manual).
7. Position the shroud over the motor fan. Secure the
shroud with the two shroud screws.
8. Slide the motor cover over the motor. Secure the motor
cover with the four motor cover screws.

Replacing the Gears

1. Loosen and remove the four motor cover screws.
Remove the motor cover.
2. Disconnect the black and red wires coming from the pump
housing.
3. Loosen and remove the four motor mounting screws.
4. Pull the motor out of the pump housing.
NOTE: If the motor will not dislodge from the pump
housing:
• Remove the front cover plate.
• Using a rubber mallet, carefully tap on the
front of the motor crankshaft that extends
through the connecting rod.
5. Inspect the armature gear on the end of the motor for
damage or excessive wear. If this gear is completely
worn out, replace the entire motor.
6. Remove and inspect the 2nd stage gear for damage or
excessive wear. Replace if necessary.
7. Remove and inspect the gear and crank assembly for
damage or excessive wear. Replace if necessary.
8. Reassemble the pump by reversing the above steps.
During reassembly, make sure the thrust washers is in
place.
NOTE: Refill the gear box with five ounces of
Lubriplate (P/N 314-171).
Motor Mounting Screw
Brush Cover
Motor Cover
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