

Part 0277491 is a replacement air flow adjustment knob for SprayTech HVLP Maxum II spray guns. This knob controls the volume of air directed to the air cap, allowing fine-tuning of atomization and spray pattern. When the original knob becomes worn, stripped, or difficult to turn, replacement restores precise air control.
| Part Number | 0277491 |
|---|---|
| Part Description | Air Flow Adjustment Knob |
| Brand | Universal |
| Fits | SprayTech HVLP Maxum II |
| Condition | New |
The 0277491 air flow adjustment knob is a direct replacement control component for SprayTech HVLP Maxum II spray guns. This knob is typically located on the rear of the gun or on the handle, where it regulates the volume of compressed air flowing to the air cap. By adjusting air flow, the operator can fine-tune material atomization and spray pattern width to match the coating material and application requirements. Proper air flow adjustment is essential for achieving a quality finish, minimizing overspray, and controlling material usage. The knob features an ergonomic design with a textured surface for easy adjustment, even when wearing gloves. A worn, stripped, or damaged knob can make precise air adjustment difficult or impossible, leading to poor atomization, inconsistent patterns, and increased material waste. This replacement knob is manufactured to match original specifications for fit and function. Installation typically involves removing the old knob and securing the replacement with a set screw or push-on fit. Regular inspection helps identify knobs with damaged threads or worn grip surfaces before they affect adjustability.
| Air volume control | Regulates air flow to air cap |
|---|---|
| Atomization adjustment | Fine-tunes material atomization |
| Pattern control | Affects spray pattern width |
| Stripped / worn threads | Knob spins without affecting air flow |
|---|---|
| Cracked or broken | Visible damage prevents proper use |
| Smooth / slippery grip | Worn texture makes adjustment difficult |
| Loose mounting | Knob wobbles on valve stem |
Air flow adjustment knob 0277491 is designed specifically for the SprayTech HVLP Maxum II. Verify fit using your equipment's parts diagram.
| Compatible Model |
|---|
| SprayTech HVLP Maxum II |
When replacing the air flow adjustment knob, inspect these associated components to ensure proper gun performance.
Check for smooth operation and sealing.
Inspect for damage or wear on mating surface.
Ensure air passages are clean.