Part 0277918 is a motor brush kit used on compatible SprayTech CS-series airless paint sprayers. The brush kit maintains proper electrical contact between the motor and commutator, supporting consistent motor speed, torque, and reliable sprayer operation.
| Part Number | 0277918 |
|---|---|
| Part Description | Motor Brush Kit |
| Function | Motor electrical contact / current transfer |
| Fits | SprayTech CS Series (5100, 8100, 9100) |
| Condition | New |
The 0277918 Motor Brush Kit is used in SprayTech CS-series airless paint sprayers to transfer electrical current to the motor armature. Proper brush condition is critical for stable motor performance, smooth startup, and consistent spray output.
As motor brushes wear, electrical contact becomes inconsistent, which can lead to reduced power, intermittent operation, or complete motor failure. Replacing worn brushes restores proper current flow and helps extend motor service life.
| Current transfer | Delivers electrical current to the motor armature |
|---|---|
| Motor performance | Supports consistent speed and torque output |
| Electrical stability | Maintains reliable motor operation |
| Loss of power | Motor lacks torque or runs inconsistently |
|---|---|
| Sparking | Excessive sparking at the motor |
| Intermittent operation | Motor cuts in and out during use |
| Routine maintenance | Scheduled motor service interval |
Part 0277918 is compatible with the following SprayTech airless paint sprayers. Always verify motor type and revision using the correct parts diagram.
| Sprayer Model | Component |
|---|---|
| SprayTech CS-5100 | Motor brush kit |
| SprayTech CS-8100 | Motor brush kit |
| SprayTech CS-9100 | Motor brush kit |
Motor brush service is often paired with inspection of other motor components.
Worn commutators can accelerate brush wear.
Weak springs reduce brush contact pressure.
Bearing wear can cause uneven brush contact.
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