Graco 104814 Spring, Extension – Precision Return Spring for Fluid & Spray Systems
Compatible Machines
- Graco piston‑type fluid pumps requiring extension springs
- Graco automatic spray rigs with spring‑return actuators
- Graco proportioning modules where a stable return force is critical
- Graco maintenance kits for high‑cycle finishing equipment needing spring replacement
Product Description
The Graco 104814 Spring, Extension is a high‑precision extension spring designed for use inside Graco fluid‑handling and spray equipment. Engineered to deliver consistent return force and reliable performance under repeated cycle conditions, it supports mechanisms that require an extensible spring element to reset components such as rods, pistons or valves after actuation.
Key Features
- Extension‑spring design: Provides reliable tension and repeatable return motion in demanding applications.
- Premium material construction: Built to withstand fatigue, frequent cycles and industrial conditions.
- OEM‑specified part: Ensures correct fit, performance and compatibility in Graco systems.
- Enhances system reliability: Maintains actuation consistency and helps prevent component lag or failure.
- Service‑friendly replacement: Designed for straightforward installation during regular maintenance cycles.
Technical Specifications
| Specification |
Details |
| Part Number |
104814 |
| Component Type |
Spring, Extension |
| Intended Use |
Return spring for actuation mechanisms in fluid/spray equipment |
| Material |
High‑tensile spring steel (industrial grade) |
| Service Environment |
High‑cycle spray systems, finishing equipment, piston/valve assemblies |
Applications
This extension spring is used in internal assemblies of Graco equipment where controlled return motion is essential — such as piston rods in proportioning pumps, valve return mechanisms in spray modules, or other high‑use finishing gear. Installing the correct spring ensures consistent performance, prevents part wear and sustains system uptime under heavy duty conditions.
Performance Advantages
- Delivers consistent mechanical return force throughout life‑cycle and prevents sag or drift.
- Reduces variation in actuation timing, aiding consistent spray, fluid delivery and finish quality.
- Minimises downtime by ensuring key moving parts reset properly and quickly.
- Supports longevity of adjacent components by preventing over‑stretch or slack in mechanism.
- OEM compatibility ensures original performance and maintains system integrity.
Maintenance Tips
During servicing, inspect the existing spring for signs of elongation, corrosion, or loss of tension. Clean the mounting brackets and ensure smooth travel without binding. When installing the 104814 extension spring, ensure correct orientation, preload where specified, and verify full actuation and return under system load. Replace if you detect reduced response, inconsistent motion or mechanical noise in return cycle.
Frequently Asked Questions
The 104814 Spring, Extension provides the controlled return force needed in actuation mechanisms, ensuring that components such as pistons or valves reliably reset after each cycle.
Replace the spring if you observe slower return motion, stretched coils, binding, noise during return, or if the related mechanism isn’t resetting properly.
While substitution is possible if specifications match, using the OEM‑specified spring ensures proper preload, material and cycle life as intended by the manufacturer.
Inspect adjacent components for wear, clean the travel path, ensure no binding points and lubricate lightly (if specified). Install the new spring, test full cycle, and confirm consistent mechanism response.
