Product Description
The Hyster HY 2040557 is a direct-replacement brake pedal micro switch designed for electric pallet truck models W40XL and W40XT. This safety-critical sensor signals the truck control circuitry when the brake pedal is depressed, enabling regenerative braking and parking brake engagement. Built with a durable plunger actuator and high-impact thermoplastic construction, it delivers reliable performance in demanding material handling environments.
Specifications
Electrical
| Typical Control Voltage | 24VDC nominal (truck control circuitry) |
Material & Construction
| Actuator Material | High-impact thermoplastic actuator button |
| Design Type | Plunger-actuated micro switch |
Part Numbers
| Part Number | HY 2040557 |
| Cross-Reference Part Numbers | HY 2037415 |
| Supersedes / Replaces | Replaces HY 2037415 |
| Compatible With Models | Hyster W40XL, Hyster W40XT |
Frequently Asked Questions
Q: What does the HY 2040557 micro switch do?
A: The HY 2040557 is an OEM brake pedal actuation sensor (micro switch) designed to signal the truck control circuitry when the brake pedal is depressed. It is a critical safety input that enables the regenerative braking circuit and parking brake engagement in Hyster electric pallet trucks.
Q: Which Hyster pallet truck models are compatible with the HY 2040557?
A: The HY 2040557 is designed for Hyster W40XL and W40XT electric pallet truck models. These models use a 24VDC nominal control circuit architecture. Verify your model designation before ordering to ensure correct fitment.
Q: What replaced the older HY 2037415 brake micro switch?
A: The HY 2040557 is the current OEM replacement for the superseded HY 2037415 brake micro switch. If your truck was originally equipped with part 2037415, the HY 2040557 is the correct specification replacement. Do not cross-substitute different micro switch part numbers.
Q: What are the electrical specifications of the HY 2040557?
A: The HY 2040557 is rated for 24VDC nominal truck control circuitry. It features a plunger actuator and high-impact thermoplastic construction designed to withstand vibration and thermal cycling in industrial material handling environments.
Q: How do I diagnose if the HY 2040557 micro switch is faulty?
A: If the brake pedal does not engage the brake circuit or regenerative braking does not activate, the HY 2040557 may be faulty. Loss of brake signal is a safety-critical failure. Replace the micro switch if continuity testing shows it does not close when the pedal is depressed.