1. Танилцуулга
This manual provides essential instructions for the safe and effective installation, operation, and maintenance of your Hubbell Pressure Switch with Unloader and Lever. This unit is designed as a direct replacement for Ingersoll Rand part number 56288020-01, featuring a 4-port design and an integrated ON/OFF lever. Please read this manual thoroughly before use and retain it for future reference.
2. Аюулгүй байдлын мэдээлэл
АНХААРУУЛГА: Эдгээр аюулгүй байдлын зааврыг дагаж мөрдөхгүй байх нь ноцтой гэмтэл, үхэл эсвэл эд хөрөнгийн хохирол учруулж болзошгүй.
- Always disconnect power to the compressor or system before attempting any installation, maintenance, or repair.
- Ensure the air system is completely depressurized before working on the pressure switch or any connected components.
- Installation should only be performed by qualified personnel familiar with electrical and pneumatic systems.
- Verify that all electrical connections are secure and comply with local electrical codes.
- Do not exceed the maximum pressure rating of the switch or the compressor system.
- Wear appropriate personal protective equipment (PPE), including eye protection, during installation and maintenance.
- Хүүхэд болон зөвшөөрөлгүй хүмүүсийг ажлын талбайгаас хол байлга.
3. Бүтээгдэхүүн дууссанview
The Hubbell Pressure Switch is a critical component for controlling air compressors. It automatically starts and stops the compressor motor based on system pressure. This model features:
- 4 порттой дизайн: Allows for multiple connections, typically for the main air tank, pressure gauge, safety valve, and unloader line.
- ON/OFF Lever: Provides manual control to start or stop the compressor.
- Буулгах хавхлага: Releases air pressure from the compressor head when the motor stops, allowing for easier restarts.

Зураг 1: Урд view of the Hubbell 4-Port Pressure Switch. The image shows the black housing with the Hubbell logo, brass fittings for air connections, and the unloader valve assembly.

Зураг 2: Хажуу тал view of the Hubbell Pressure Switch, highlighting the electrical screw terminals for wiring connections and additional port details.
4. Тохиргоо ба суурилуулалт
- Бэлтгэл:
- Ensure the compressor is turned off and unplugged from its power source.
- Completely drain all air pressure from the compressor tank.
- Carefully remove the old pressure switch, noting the connections for the main air line, unloader line, and electrical wiring. Take photos if necessary for reference.
- Суурилуулалт:
- Thread the new Hubbell pressure switch onto the main air tank port. Use thread sealant (e.g., PTFE tape) to ensure an airtight seal.
- Ensure the switch is securely tightened but do not overtighten.
- Хийн холболтууд:
- Connect the unloader line to the appropriate port on the new switch. Note: Some replacement switches may have the unloader port in a different orientation than the original. Minor adjustments to the unloader line may be required.
- Connect any other accessories such as a pressure gauge or safety valve to the remaining ports, using thread sealant as needed.
- Цахилгааны утас:
- Open the electrical cover of the pressure switch.
- Connect the compressor motor's power wires to the screw terminals inside the switch. Refer to the wiring diagram provided with your compressor or consult a qualified electrician if unsure.
- Бүх холболтууд нягт, найдвартай байгаа эсэхийг шалгаарай.
- Replace the electrical cover securely.
- Туршилт:
- With the ON/OFF lever in the "OFF" position, restore power to the compressor.
- Move the ON/OFF lever to the "ON" position. The compressor should start and build pressure.
- Monitor for air leaks at all connections using soapy water. Tighten connections if leaks are detected.
- Observe the compressor's cut-out pressure and cut-in pressure to ensure it operates within the desired range.
5. Ашиглалтын заавар
The Hubbell Pressure Switch is designed for straightforward operation.
- To Start the Compressor: Ensure the compressor is plugged into a suitable power source. Move the ON/OFF lever to the "ON" position. The compressor motor will start and build air pressure until it reaches its preset cut-out pressure, at which point the switch will automatically turn off the motor.
- To Stop the Compressor: Move the ON/OFF lever to the "OFF" position. The compressor motor will stop. The unloader valve will release any residual air pressure from the compressor head, facilitating an easier restart.
- Автомат ажиллагаа: Once the lever is in the "ON" position, the switch will automatically cycle the compressor on and off to maintain pressure within the set range.
6. Засвар үйлчилгээ
Regular maintenance ensures the longevity and reliable operation of your pressure switch.
- Тогтмол үзлэг: Regularly inspect the pressure switch and all connections for signs of wear, damage, or air leaks.
- Цэвэр байдал: Keep the exterior of the switch clean and free from dust, dirt, and moisture.
- Цахилгааны холболтууд: Periodically check electrical terminals for tightness and corrosion. Ensure power is disconnected before inspection.
- Буулгах хавхлага: Ensure the unloader valve operates freely. If it sticks or leaks, it may need cleaning or replacement.
- Агаарын алдагдал: Use soapy water to check all pneumatic connections for leaks. Tighten fittings as necessary.
7. Алдаа засах
| Асуудал | Боломжит шалтгаан | Шийдэл |
|---|---|---|
| Компрессор асахгүй байна. | No power to compressor. ON/OFF lever in "OFF" position. Утасны холболт буруу. Motor overload tripped. | Цахилгаан хангамж ба таслуурыг шалгана уу. Move lever to "ON". Inspect and secure wiring (with power disconnected). Reset motor overload. |
| Compressor runs continuously, does not cut out. | Даралт шилжүүлэгчийн эвдрэл. Системд агаарын алдагдал. Даралтын тохируулга хэт өндөр байна. | Inspect switch for damage; consider replacement. Бүх холболтыг гоожиж байгаа эсэхийг шалгана уу. Adjust pressure switch settings if adjustable (consult compressor manual). |
| Compressor struggles to restart. | Unloader valve not functioning. Air pressure not fully released from head. | Inspect unloader valve for blockage or damage. Clean or replace if necessary. |
| Air leaks from the pressure switch. | Сул холбох хэрэгсэл. Damaged thread sealant. Internal switch diaphragm damage. | Холбогчийг чангалах. Утасны чигжээсийг дахин түрхэнэ. Даралтын унтраалга солих. |
8. Техникийн үзүүлэлтүүд
| Брэнд | Хаббелл |
| Загварын дугаар | 713807486747 |
| Үйлдлийн горим | АСААХ, УНТРААХ |
| Одоогийн үнэлгээ | 4 Amps |
| Холбоо барих төрөл | Ер нь нээлттэй |
| Холбогч төрөл | Шургийн терминал |
| Хэлхээний төрөл | 1 чиглэлтэй |
| Суурилуулах төрөл | Самбар самбар |
| Зүйлийн жин | 1.1 фунт |
| Багцын хэмжээ | 5 x 4.1 x 3.8 инч |
| Тохиромжтой төхөөрөмжүүд | Industrial and heavy machinery devices, commercial and construction equipment |
9. Баталгаат хугацаа ба дэмжлэг
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Hubbell customer service directly. Keep your purchase receipt as proof of purchase.
Note: This product is a replacement part. Warranty terms may differ from original equipment manufacturer warranties.





