Part 765-009 is a carbon brush designed for use in the electric motor of compatible airless sprayers. The brushes conduct electrical current between the stationary wires and the rotating armature. When worn, they can cause loss of power, excessive sparking, erratic motor operation, or complete motor failure. Replacing worn brushes with this genuine component restores proper motor performance and extends the life of your sprayer.
| Part Number | 765-009 |
|---|---|
| Part Description | Carbon Brush |
| Brand | Airless Sprayer / Epic |
| Fits | 550XC, Epic 447EX, Epic 447HPX |
| Condition | New |
The 765-009 carbon brush is a wear item that delivers electrical current to the motor’s commutator, enabling the armature to rotate and drive the pump. Over time, friction and electrical arcing cause the brush material to erode. When the brushes become too short, contact pressure decreases, leading to arcing, loss of power, and eventually motor failure.
This replacement brush is manufactured to OEM specifications, ensuring the correct dimensions, spring tension, and material composition for reliable performance in your airless sprayer. Regular inspection and timely replacement of worn brushes can prevent costly motor repairs and downtime.
| Current conduction | Transfers electricity from the stationary wires to the rotating commutator |
|---|---|
| Wear component | Designed to wear gradually; routine replacement maintains motor efficiency |
| Spring pressure | Maintains consistent contact with the commutator for smooth operation |
| Short brush length | Brush worn below minimum length (typically 1/4" or as specified) |
|---|---|
| Excessive sparking | Visible sparks around commutator during operation |
| Intermittent power | Motor cuts out or runs erratically, especially under load |
| Chipped or cracked | Physical damage to the brush face or body |
| Glazed or dirty commutator | Often accompanies brush wear; commutator may need cleaning |
Carbon brush 765-009 is compatible with the following airless sprayer models. Always verify fitment by comparing the brush dimensions and shape to your original part.
| Sprayer Model | Component |
|---|---|
| Airless Sprayer 550XC | Motor carbon brush (set) |
| Epic 447EX | Motor carbon brush (set) |
| Epic 447HPX | Motor carbon brush (set) |
When replacing brushes, it is good practice to inspect and service associated motor components to ensure long‑term reliability.
A worn or dirty commutator accelerates brush wear. Clean or replace if grooved or pitted.
Ensure holders are clean and springs provide adequate pressure; weak springs cause arcing.
Worn bearings can cause misalignment and uneven brush wear; replace if rough or noisy.
Copyright © 2024 AlltitanParts.com - All Rights Reserved.
