Klutch 5903356
Klutch 60-Gallon Single-Stage Vertical Air Compressor
Model: 5903356
1. Introduction
Thank you for choosing the Klutch 60-Gallon Single-Stage Vertical Air Compressor. This powerful and reliable unit is designed to provide consistent air pressure for a wide range of pneumatic tools and applications in your workshop or garage. This manual provides essential information for the safe operation, maintenance, and troubleshooting of your new air compressor. Please read it thoroughly before initial use and keep it for future reference.

Figure 1.1: Klutch 60-Gallon Single-Stage Vertical Air Compressor.
2. Safety Information
Your safety and the safety of others are extremely important. Always observe the following safety precautions when operating this air compressor:
- Read the Manual: Understand all operating instructions and warnings before use.
- Eye and Hearing Protection: Always wear ANSI-approved safety goggles and hearing protection when operating the compressor.
- Electrical Safety: Ensure the compressor is connected to a properly grounded 230-volt, single-phase, 60 Hz power supply with a dedicated circuit breaker. Do not use extension cords unless absolutely necessary, and if so, ensure they are rated for the compressor's power requirements.
- Ventilation: Operate the compressor in a well-ventilated area to prevent heat buildup and ensure proper air intake.
- Pressure Relief: Never attempt to repair or modify the pressure relief valve. Ensure it is functioning correctly.
- Stable Surface: Place the compressor on a level, stable surface to prevent tipping.
- Keep Clear: Keep children, pets, and unauthorized personnel away from the operating compressor.
- Drain Condensation: Regularly drain condensation from the air tank to prevent rust and maintain air quality.
3. Setup
3.1 Unpacking
Carefully remove the compressor from its packaging. Inspect the unit for any signs of shipping damage. Report any damage immediately to your dealer.
3.2 Assembly
Attach the wheels and any other components (such as the handle) as instructed in the assembly guide included with your unit. Ensure all bolts and fasteners are securely tightened.
3.3 Electrical Connection
This compressor requires a 230-volt, single-phase, 60 Hz power supply. Ensure your electrical circuit can handle the compressor's power requirements (3.7 HP motor). It is recommended to use a dedicated circuit to avoid overloading.

Figure 3.1: Control panel and electrical connection point.
4. Operating Instructions
4.1 Initial Startup and Break-in
Before first use, ensure the oil level is correct using the oil sight gauge. For initial break-in, run the compressor with the tank drain valve open for approximately 30 minutes to allow the internal components to seat properly. This helps extend the life of the pump.
4.2 Pressure Adjustment
The compressor features a built-in pressure gauge and an adjustable regulator. Turn the regulator knob to set the desired output pressure for your tools. The maximum operating pressure is 135 PSI.

Figure 4.1: Compressor specifications and gauges for quick reference.
4.3 Connecting Air Tools
Connect your pneumatic tools to the quick-connect coupler. Ensure the connection is secure before operating the tool. The compressor delivers 9.3 CFM at 90 PSI, suitable for various tools including impact wrenches, nailers, and spray guns.

Figure 4.2: Detail of the pressure gauge and quick-connect coupler.
5. Maintenance
Regular maintenance is crucial for the longevity and optimal performance of your air compressor.
5.1 Oil Level Check and Change
This compressor features an oil-lubricated pump. Check the oil level regularly using the oil sight gauge. Change the compressor oil according to the schedule in your detailed product manual or more frequently under heavy use conditions. Use only compressor oil specified by Klutch.

Figure 5.1: Key components including the oil sight gauge.
5.2 Tank Drain
Condensation accumulates in the air tank. To prevent rust and ensure clean air, drain the tank daily or after each use by opening the petcock drain valve located at the bottom of the tank.

Figure 5.2: Location of the tank drain valve (at the base).
5.3 Air Filter
Inspect the air filter regularly. Clean or replace it as needed to ensure proper airflow to the pump and prevent contamination.
6. Troubleshooting
This section outlines common issues and their potential solutions. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Compressor does not start | No power; Circuit breaker tripped; Pressure switch issue | Check power cord, outlet; Reset breaker; Consult manual or support for pressure switch. |
| Low pressure or airflow | Air leaks; Clogged air filter; Tool requires more CFM | Check connections for leaks; Clean/replace air filter; Use tools within compressor's CFM rating. |
| Excessive noise | Loose components; Worn pump/motor parts | Tighten all fasteners; Contact support for internal component issues. |
| Water in air line | Tank not drained regularly | Drain tank daily or more frequently. |
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Klutch |
| Model Name | Air Compressor |
| Model Number | 5903356 |
| Tank Size | 60 Gallon |
| Motor Horsepower | 3.7 HP |
| Voltage | 230 Volts |
| Maximum Operating Pressure | 135 PSI |
| CFM @ 90 PSI | 9.3 CFM |
| Pump Type | Single-Stage, Oil-Lubricated |
| Item Weight | 220 Pounds |
8. Warranty and Support
Your Klutch 60-Gallon Single-Stage Vertical Air Compressor is backed by a manufacturer's warranty. Please refer to the warranty card included with your purchase for specific terms and conditions. Keep your proof of purchase for warranty claims.
For technical assistance, replacement parts, or any questions regarding your compressor, please contact Klutch customer support. Visit the official Klutch website for the most up-to-date contact information and support resources.
We are committed to providing high-quality products and excellent customer service.