Part 773-021 is a trigger spring used in compatible HVLP AirSpray spray guns. This spring provides trigger return tension, allowing the trigger to return to its resting position after release and supporting consistent control during spraying operations.
| Part Number | 773-021 |
|---|---|
| Part Description | Trigger Spring |
| Category | Spray Gun Trigger Components |
| Fits | HVLP AirSpray C100 Gun; HVLP AirSpray ProFinish Gun; HVLP AirSpray ProFinish TS40, TS50 |
| Condition | New |
The 773-021 Trigger Spring is a mechanical return spring used in select HVLP AirSpray spray guns. Its primary function is to provide controlled return force to the trigger after it is pulled, helping the trigger return smoothly to its neutral position.
Over time, trigger springs can lose tension due to repeated cycling, contamination, or corrosion. A weakened spring can cause sluggish trigger response or incomplete trigger return, affecting spray control. Replacing the trigger spring restores proper trigger feel and operation.
| Trigger return | Returns the trigger to its resting position after release |
|---|---|
| Control consistency | Supports predictable trigger feel during spraying |
| Operational reliability | Helps prevent trigger sticking or slow response |
| Weak return | Trigger does not return fully or feels sluggish |
|---|---|
| Uneven trigger feel | Inconsistent resistance during trigger movement |
| Corrosion or wear | Visible rust, distortion, or loss of spring tension |
| Routine service | Trigger components serviced during gun maintenance |
Part 773-021 is compatible with the following HVLP AirSpray spray guns. Always confirm fitment using the correct parts diagram for your specific gun model and revision.
| Spray Gun Model | Component |
|---|---|
| HVLP AirSpray C100 Gun | Trigger Spring (773-021) |
| HVLP AirSpray ProFinish Gun | Trigger Spring (773-021) |
| HVLP AirSpray ProFinish TS40 | Trigger Spring (773-021) |
| HVLP AirSpray ProFinish TS50 | Trigger Spring (773-021) |
Worn trigger pivots can affect spring performance.
Binding needle parts can mimic trigger spring issues.
Excessive wear can lead to uneven trigger movement.
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