Cobra 40-25 - Pump WAGNER - Free user manual and instructions
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| Product Type | Airless Paint Sprayer |
| Brand | Wagner |
| Model | Cobra 40-25 |
| Power Supply | 120 V, 60 Hz |
| Power Rating | 1100 W |
| Maximum Pressure | 3300 psi (227 bar) |
| Flow Rate | 0.47 gpm (1.8 L/min) |
| Weight | 40 lbs (18 kg) |
| Dimensions (L x W x H) | 20 x 15 x 30 in (51 x 38 x 76 cm) |
| Hopper Capacity | 1.5 gallons (5.7 L) |
| Hose Length | 50 ft (15 m) |
| Max Tip Size | 0.017 inch |
| Pressure Control | Adjustable |
| Prime/Pump Mode | 2-finger trigger, prime valve |
| Cleaning Method | Flush with water or solvent |
| Safety Features | Tip guard, trigger lock, pressure relief |
| Spare Parts Availability | Online via Wagner |
| Repairability | Serviceable with rebuild kits |
| Included Accessories | Spray gun, tip, hose, manual |
Frequently Asked Questions - Cobra 40-25 WAGNER
How do I prime the Wagner Cobra 40-25?
To prime the pump, ensure the suction tube is in the paint, open the prime valve, and turn the pressure control to the lowest setting. Squeeze the trigger until paint flows steadily out of the prime hose. Then close the prime valve and increase pressure to the desired level.
What type of paint can I use with this sprayer?
The Cobra 40-25 can handle latex, acrylic, enamel, oil-based paints, stains, and primers. Always strain paint before use to prevent clogging.
How do I clean the sprayer after use?
Flush the system with a suitable solvent (water for latex, mineral spirits for oil-based). Remove the tip and clean it separately. Run solvent through the gun and hose until clear. Then store with a small amount of pump armor or mineral oil.
What tip size should I use?
The tip size depends on the coating. For thin materials like stains, use a 0.011-0.013 inch tip. For medium viscosity like latex, use 0.015-0.017 inch. For thick materials, up to 0.021 inch. The maximum tip size for this pump is 0.017 inch.
Why is the pump not building pressure?
Common causes: clogged inlet filter, air in the system, worn piston packings, or stuck pressure control valve. Check and clean the filter, prime the pump again, and inspect the packing for wear.
How often should I replace the piston packings?
The piston packings should be inspected every 300 hours of use. Replace them if paint leaks from the front of the pump or if pressure drops. Use a genuine Wagner rebuild kit.
Can I use an extension cord?
Yes, but use a heavy-duty cord rated for at least 15 amps and keep it as short as possible. A longer cord can cause voltage drop and reduce pump performance. Minimum wire gauge: 12 AWG for up to 100 ft.
What safety precautions should I take?
Always engage the trigger lock when not spraying. Use the tip guard to prevent injection injuries. Never point the gun at yourself or others. Wear gloves, goggles, and a respirator. Relieve pressure before cleaning or servicing.
How do I adjust the pressure?
Turn the pressure control knob clockwise to increase pressure, counterclockwise to decrease. Start low and adjust until you achieve a smooth fan pattern without tails. Typical pressure for latex is around 2000-2500 psi.
Where can I find spare parts?
Spare parts can be ordered online from the Wagner website or authorized dealers. Common parts include piston packings, inlet valves, outlet valves, and seals. Always use genuine Wagner parts for proper fit.
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USER MANUAL Cobra 40-25 WAGNER
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Product information
Brand : WAGNER
Model : Cobra 40-25
Category : Pump