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Removing the Motor Cord
1. Disconnect the power cord from the electrical supply.
2. Loosen the 4 hex socket head allen screws along the
sides of the motor cover and remove the cover.
3. Unscrew and remove the brush caps holding the brushes
in place.
4. Pry the brushes out gently with a screwdriver.
5. Install the new brushes, P/N 07101.
6. Install the brush caps. If the old brush caps are damaged,
replace them with P/N 07103.
7. Replace the motor cover and hex socket head allen screws.
Replacing the Armature
Removing the Motor Cord
1. Disconnect the unit from the power source and follow the
pressure relief procedure found in this manual.
2. Remove the motor cover by unscrewing the 4 hex socket
head screws that attach the shroud to the adapter plate.
3. Remove the pressure control box cover plate by
unscrewing the 4 black phillips head screws.
4. Unplug the slip-on connector for the black motor lead from
M1 located on the front edge of the circuit board. Then
unplug the slip-on connector for the white motor lead from
M2. See the wiring diagram in the parts listing section of
this manual.
5. Remove the strain relief holding the motor cord in the cart
mounting plate of the pressure control box. Carefully pull
the motor cord out through the strain relief hole.
NOTE: Pay attention to the length of the cord jacket
extending into the box and the routing of
both wires to the circuit board. You will need
to know this when replacing the motor cord.
M2
Cover Plate
White Lead
M2
Black Lead
M1
10 © SprayTECH Corporation. All rights reserved.
Installing the New Armature
Refer to the illustration below during the following steps.
1. Unscrew the motor brush caps (1) and remove the motor
brushes (2).
2. Put an alignment mark on the motor shell and gearbox so
that when it is reassembled, the motor will be oriented
correctly.
3. Remove the 4 long phillips head screws (3) running the
length of the motor body.
4. Carefully remove the motor body (4) by pulling straight
back towards the back of the cart. The armature (6) will
normally remain mounted to the gearbox (7) as the motor
body is being removed.
5. Remove the armature by grasping it around the middle
section and pulling straight back. If there is any
resistance, gently rock the armature up and down while
pulling. If the armature came off with the motor body,
simply pull the armature out by grasping the armature
bearing.
6. Retrieve the 2 belleville washers (5) from the inside rear
bearing bore in the motor end bell.
7. With the motor body sitting upright, install the belleville
washers in the rear bearing bore of the motor and bell.
Stack the washers so that the inside diameters touch each
other.
8. Install the new armature into the motor body.
9. With the armature installed in the motor body, insert the
front armature bearing in the gearbox bearing bore. The
inside diameter of the motor shell should slip over the 4
centering bosses on the gearbox.
10. Align the marks on the motor shell and gearbox and
attach the motor body to the gearbox with the 4 long
phillips head screws.
Replacing the Motor Cord
1. Insert the motor cord through the strain relief hole on the
pressure control mounting plate on the cart. Position the
jacketed portion of the motor cord at the distance through
the hole noted in step 4 of Removing the motor cord.
Reconnect the slip-on connector for the black motor lead
to M1 and white motor lead to M2 on the front edge of the
circuit board. Route the wires as noted in step 4.
2. Install the strain relief on the back side of the pressure
control mounting plate.
3. Screw on the pressure control box cover plate.
4. Inspect the motor brushes for damage or wear. If less
than 1/2" long, replace the brushes. Install the brushes
and brush caps.
5. Replace the motor cover and mounting screws.
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English