.
Repairs
2
Prior to making any repairs, make sure to perform
the Pressure Relief Procedure, section 4.6 of the
Operation 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!
2.1
Replacing the Motor Brushes (optional 120V
electric motor, PL4955 only)
The 120V electric Convertokit is available for separate purchase.
When installing the 120V Convertokit, strap down
the front of the PowrLiner to prevent it from tipping
backwards.
Perform this procedure using Motor Brush Kit P/N 978-050. The kit
consists of two brushes, two springs, and two clips.
Brushes should be replaced when they are worn to
i
less than 1/2 inch. Check and replace both brushes
at the same time.
1. Remove both inspection covers (1) on the motor.
1
2. Push in the spring clip (2) to unhook it, then pull it out.
3. Loosen the terminal screw (3). Pull the brush lead (4) away,
but leave the motor lead in place. Remove the brush and
spring.
3
PowrLiner
GB
4
2
5
4. Inspect the commutator (5) for burning, excessive pitting or
gouging. A black color on the commutator is normal.
5
5. Install the new brush (6) so its lead slides in the long slot of the
brush holder (7). Push the terminal under the terminal screw
washer (8). Ensure the motor lead is still connected at the
screw. Tighten the screw.
6. Place the spring (9) on the brush (6) as shown above. Push
in and hook the spring clip (2). Repeat this procedure for the
other side.
8
7
7. Reinstall both inspection covers.
If electric motor overloads and stops running,
IMMEDIATELY turn the motor off and follow
the Pressure Relief Procedure in the Cleanup
section of this manual. Wait until the motor cools
(approximately 30 minutes). Then push in the
bubble top, manual reset button, turn the motor on
and pressurize the system.
Repairs
6
9
2