Graco 168685 Spring Adjusting Screw
$150.00
In Stock
OEM Graco 168685 Spring Adjusting Screw for trigger/valve spring tension control. Helps ensure proper shut-off and consistent trigger performance.
- Precision-adjusted spring preload
- Maintains safe spray shut-off
- Fits Graco Pistol-Grip Mastic Flo-Gun models
Quantity
Genuine OEM Part
Fast Shipping (Order by 1 PM CST)
Easy Returns
Graco 168685 Spring Adjusting Screw
Compatible Machines
This OEM Graco 168685 Spring Adjusting Screw fits the following spray gun models:
- Graco Pistol-Grip Mastic Flo-Gun Model 224990 (Series A, With Diffuser)
- Graco Pistol-Grip Mastic Flo-Gun Model 224991 (Series A, Without Diffuser)
- Graco Pistol-Grip Mastic Flo-Gun Model 289670 (Variant)
- Graco Pistol-Grip Mastic Flo-Gun Model 289671 (Variant)
Product Overview
The Graco 168685 Spring Adjusting Screw plays a key role in maintaining precise trigger and valve control within compatible Graco spray guns. It allows fine adjustment of internal spring tension, helping ensure proper shut-off performance, consistent spray control, and comfortable trigger responsiveness.
Key Features
- OEM replacement part for specific Graco spray gun models
- Adjusts spring preload to support proper gun shut-off and trigger feel
- Critical for maintaining spray safety and performance
- Precision-machined for durability and reliability
Technical Details
| Part Number | 168685 |
|---|---|
| Component Type | Spring Adjusting Screw |
| Application | Trigger / Valve Assembly Adjustment |
| Material | Precision-machined steel |
When to Replace
- Irregular trigger tension or gun fails to shut off properly
- Visible wear, stripped threads, or corrosion on adjustment screw
- Trigger performance varies between spray cycles
Installation & Adjustment Guidance
- Always follow proper pressure relief procedures before servicing the spray gun
- Turn the screw clockwise to increase spring tension
- Turn counter-clockwise to reduce trigger preload
- Test trigger shut-off several times after adjusting to ensure consistent operation
Frequently Asked Questions
It adjusts internal spring pressure in the trigger valve assembly, ensuring proper shut-off and consistent trigger feel during spraying.
Only the models listed under Compatible Machines are verified to use this part. Check your equipment manual if using it on a different spray gun.
Yes, this is a genuine OEM replacement component designed to maintain original trigger performance and safety.
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