Kobalt 8-Gallon Air Compressor

Product Overview

This manual provides detailed instructions for the safe assembly, operation, and maintenance of the Kobalt 8-Gallon Air Compressor.

Key Components:

• A - Electric Motor: Powers the pump, includes thermal overload protector.
• B - Air Tank: Stores compressed air.
• C - Tank Pressure Gauge: Measures stored air pressure in the tank.
• D - Air Pressure Regulator: Adjusts line pressure to the tool.
• E - Regulated Pressure Gauge: Measures regulated outlet pressure.
• F - Quick Coupler: Air line outlet for connecting air hoses (1/4 in. NPT).
• G - Air Tank Drain Valve: Removes moisture from the air tank.
• H - Pressure Relief Valve: Relieves excess system pressure.
• I - On/Off Switch: Manually controls compressor operation.
• J - Power Cord: Connects the compressor to a power source.
• M - Air Filter: Filters air entering the pump.

Safety Instructions

DANGER: Failure to follow safety information can result in serious injury or death.

WARNING: Failure to follow safety information could result in serious injury or death.

CAUTION: Failure to follow safety information may result in injury.

General Safety Precautions:

• Always wear ANSI Z87.1 approved safety goggles.
• Never spray flammable liquids in confined areas.
• Operate in a well-ventilated area.
• Do not smoke while spraying.
• Ensure proper grounding of the unit.
• Never use the compressor outdoors in rain or on wet surfaces.
• Regularly drain the air tank to prevent rust and weakening.
• Do not weld, drill, or modify the air tank.
• Always shut off, unplug, and bleed pressure before servicing or when not in use.
• Keep children away from the compressor.
• Do not touch hot components (pump, manifold) while the unit is running. Allow to cool before handling.
• Use a respirator mask if spraying toxic materials.
• Never inhale compressed air directly.
• Never exceed the maximum working pressure of the tool.
• Do not open the drain valve when tank pressure is above 10 PSI.
• Wear hearing protection.
• Operate on a stable surface; do not use on rooftops or elevated positions.
• Keep the unit at least 12 inches from walls for proper ventilation.
• Inspect air hoses and power cords weekly for damage.

Operating Instructions

1. Preparing for Startup:

• Ensure the ON/OFF switch (I) is in the OFF position.
• Turn the air pressure regulator (D) counterclockwise until it stops.
• Attach air hose/accessories or air tools to the quick coupler (F).

2. Starting the Compressor:

• Close the tank drain valve (G) by turning clockwise.
• Plug in the power cord (J).
• Set the ON/OFF switch (I) to the ON position. Allow tank pressure to build. The motor will stop automatically when the tank pressure reaches the cut-out pressure.
• Turn the air pressure regulator (D) clockwise until the desired pressure is reached.
• The compressor is now ready for use.

3. Shutting Down the Compressor:

• Set the ON/OFF switch (I) to the OFF position.
• Unplug the power cord (J).
• Reduce pressure in the tank through the outlet hose or by pulling the pressure relief valve (H).
• Tip the compressor to access the tank drain valve (G) and open it counterclockwise to drain moisture.

Care and Maintenance

• Daily: Drain the tank to prevent corrosion. Pull the pressure relief valve (H) to ensure it is functioning and clear obstructions.
• Weekly: Clean the air filter (M). Replace if necessary. Foam filters should be cleaned in warm, soapy water.
• Connections: Check all connections for tightness. Repair leaks using soapy water. Do not overtighten.
• Storage: Before long-term storage, clean dust and debris, coil the power cord, release all tank pressure, drain all moisture, and cover the unit.

Troubleshooting

Problem: Low pressure, not enough air, or compressor does not stop.

• Possible Causes: Open drain valve, leaking fittings, excessive air use, undersized compressor, hole in air hose, leaking tank, blown seals, leaking valve, worn piston.
• Corrective Actions: Close drain valve, check/tighten fittings, reduce air usage, use a larger compressor if needed, replace hose/tank, replace compressor assembly as required.

Problem: Air leaks from regulator or regulator does not regulate pressure.

• Possible Cause: Dirty or damaged regulator parts.
• Corrective Action: Replace regulator or internal parts.

Problem: Regulated pressure gauge reading drops when accessory is used.

• Possible Causes: Normal pressure drop, undersized compressor.
• Corrective Actions: Adjust regulator while accessory is in use, or consider a larger compressor if the drop is significant.

Problem: Pressure relief valve opens.

• Possible Causes: Tank pressure exceeds rating, stuck pressure switch.
• Corrective Actions: Replace pressure switch.

Problem: Motor will not run.

• Possible Causes: Pressure switch limit exceeded, blown fuse/tripped breaker, stuck check valve, incorrect extension cord, loose electrical connections, thermal overload tripped.
• Corrective Actions: Allow motor to cool (wait 15 mins), check/replace fuse, reset breaker, check/clean check valve, verify extension cord, contact service for loose connections or defective motor/capacitor/safety valve.

Warranty Information

This product is guaranteed for one year from the date of original retail purchase against defects in materials and workmanship.

Warranty Conditions and Limitations:

• Proof of purchase (bill of sale) is required.
• Warranty does not cover wear and tear, abuse, misuse, accidental damage, neglect, or improper maintenance.
• Not applicable for industrial, professional, commercial, or rental use.
• Does not cover routine maintenance or expendable parts.
• Does not cover damage from unauthorized repairs or modifications.
• Does not apply to reconditioned or refurbished products unless specified in writing.
• Does not cover damage to exterior finish or corrosion.
• Component parts from other manufacturers are not covered under this warranty.

Replacement Parts List

For replacement parts, contact Kobalt customer service at 888-3KOBALT (888-356-2258) or ascs@lowes.com.