Part number 756-087 is a replacement spring used in PowerLiner series airless sprayers. This spring provides tension and return force in various mechanisms such as trigger assemblies, pressure controls, or pump components. A worn or broken spring can cause sluggish operation, inconsistent pressure, or failure to return to neutral. Replacing it restores proper mechanical function and reliable performance.
| Part Number | 756-087 |
|---|---|
| Part Description | Spring |
| Brand | Genuine Replacement Part |
| Fits Models | PowerLiner 3000, 3500s, 2850GB/D/F, 3500 72v, 4500, 5500, 4955, 6955, 8955, 3100, 2800, 4000, 1800M, 2800M, 4900XLT, 4900, 5000, 6000, 6900XLT SP, 6900XLT, 4950, 8900XLT SP, 8900XLT, 6950, 8900 |
| Condition | New |
The 756-087 spring is a precision-engineered component used across multiple PowerLiner airless sprayer models. Depending on the application, it may function as a return spring in the trigger mechanism, a tension spring in the pressure control assembly, or a component in the pump drive system. Its exact dimensions and tension characteristics are critical for proper operation.
Springs are subject to fatigue over thousands of cycles. A weakened or broken spring can result in poor trigger response, inconsistent pressure regulation, or failure of moving parts to return to their correct position. Replacing with genuine 756-087 ensures the correct spring rate, material quality, and long-term durability.
| Return force | Returns triggers, valves, or controls to neutral position |
|---|---|
| Tension maintenance | Maintains proper tension in belts or cables |
| Pressure regulation | Works with pressure control mechanisms for consistent output |
| Damping | Absorbs shocks and reduces vibration in moving assemblies |
| Broken spring | Visible fracture or separation |
|---|---|
| Loss of tension | Spring feels weak or does not provide enough force |
| Corrosion | Rust or pitting that weakens the spring |
| Deformation | Spring is bent, twisted, or distorted |
| Fatigue | Metal fatigue from repeated cycling (often invisible) |
Part 756-087 is designed to fit the following PowerLiner models. Always verify your model number and the specific spring location using your parts diagram.
| Brand / Series | Compatible Model |
|---|---|
| PowerLiner | 3000 |
| PowerLiner | 3500s |
| PowerLiner | 2850GB |
| PowerLiner | 2850D |
| PowerLiner | 2850F |
| PowerLiner | 3500 72v |
| PowerLiner | 4500 |
| PowerLiner | 5500 |
| PowerLiner | 4955 |
| PowerLiner | 6955 |
| PowerLiner | 8955 |
| PowerLiner | 3100 |
| PowerLiner | 2800 |
| PowerLiner | 4000 |
| PowerLiner | 1800M |
| PowerLiner | 2800M |
| PowerLiner | 4900XLT |
| PowerLiner | 4900 |
| PowerLiner | 5000 |
| PowerLiner | 6000 |
| PowerLiner | 6900XLT SP |
| PowerLiner | 6900XLT |
| PowerLiner | 4950 |
| PowerLiner | 8900XLT SP |
| PowerLiner | 8900XLT |
| PowerLiner | 6950 |
| PowerLiner | 8900 |
When replacing a spring, consider inspecting these associated components:
If the spring is from the trigger, check the trigger pivot and return mechanism.
Springs in the pressure control work with valves and seats; inspect these for wear.
Hardware that holds the spring in place may be damaged or missing.
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