Replacing The Motor Brushes; Replacing The Gears - Titan RentSpray 400 Owner's Manual

16. Reconnect the wires (refer to the electrical schematic in
the Parts List section of this manual).
17. Slide the motor cover over the motor. Secure the motor
cover with the four motor cover screws.
Gear Box
Housing
Relay Mounting
Screw
Motor
Capacitors
Motor
Mounting
Screw

Replacing the Motor Brushes

Perform this procedure using Motor Brush Kit P/N 0508645.
1. Perform the Pressure Relief Procedure and unplug the
sprayer.
2. Loosen and remove the four motor cover screws.
Remove the motor cover.
3. Loosen and remove the two fan shroud screws. Remove
the fan shroud.
4. Using a small screwdriver, pry off the two plastic brush
covers.
5. Disconnect the black and red wires from the motor
brushes. Remove the motor brushes.
6. Install the new motor brushes and snap on the plastic
brush covers.
7. Reconnect the black and red wires from the motor brushes
(refer to the electrical schematic in the Parts List section of
this manual).
8. Position the fan shroud over the motor fan. Secure the
fan shroud with the two fan shroud screws.
9. Slide the motor cover over the motor. Secure the motor
cover with the four motor cover screws.
© Titan Tool Inc. All rights reserved.
Heat Sink
Assembly Screw
Heat Sink
Assembly
Fan
Shroud
Relay
Screw
Fan
Shroud
Brush
Cover
Motor
Cover
Screw
Motor Cover

Replacing the Gears

1. Perform the Pressure Relief Procedure and unplug the
sprayer.
2. Loosen and remove the four motor cover screws.
Remove the motor cover.
3. Disconnect the black and red wires coming from the gear
box housing.
4. Loosen and remove the four motor mounting screws.
5. Pull the motor out of the gear box 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 slider assembly.
6. 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.
7. Remove and inspect the 2nd stage gear for damage or
excessive wear. Replace if necessary.
8. Remove and inspect the crankshaft/gear assembly for
damage or excessive wear. Replace if necessary.
9. Reassemble the pump by reversing the above steps.
During reassembly, make sure the thrust washers is in
place.
NOTE: Refill the gear box in the pump housing with five
ounces of Lubriplate GR132 (P/N 0293396).
Motor Cover Screw
Armature Gear
Crankshaft/Gear
Assembly
Front Cover
Front Cover Screw
9
Motor Cover
Motor
Motor Mounting
Screw
Thrust Washer
2nd Stage Gear
Gear Box Housing