Question about Campbell Hausfeld HL5402 4-Gallon Oil-Lubricated Air Compressor
Unit sounded like it was having problems filling with air so I shut it off and changed the oil, cleaned air intake etc. Unit will not fire up like it has on previous services. I have noticed the on off lever is getting rather stiff so I just usually leave in the "on" position.
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Posted on Jan 02, 2017
SOURCE: AIR PRESSURE PROBLEM
The issue suggests that the head gasket is blown between the two cylinders or the reed valves are not seating or broken. The only other condition that would cause this is a leak. Here are a couple of simple tests. For leak spray soapy water on all connections and fittngs including the pressure regulator and the bottom of the pressure switch while unit is running. Repair as needed. If no leak is found, run compressor untill it reaches 60 or stops increasing and feel for suction at the air filter intake. The best way to check for suction is to remove the air filter and feel for suction at intake port-hole. The suction should be very strong. When valves are leaking it almost feels that the air is blowing out thru intake. If little or no suction, remove head and valveplate and replace parts as needed. Parts are available at www.chpower.com or www.toolpartsdirect.com. Good luck and post again if you have other question.
Posted on Jul 28, 2010
There is a check valve on the tank where the line from the pump goes to. It should also have a smaller line running to the pressure switch. If the valve or spring inside is broke or stuck it will leak as you describe. You need Campbell Hausfeld part number CV221502AJ.
Posted on Dec 24, 2010
The compressor will fill slowly if there is a leak at a fitting or pressure leaking back from the checkvalve. It will also fill slowly if there is a worn / broken reed valve/s and or leaking gasket in the head. Try easy test first. With compressor running and air filter off, spray soapy water on all joints looking for leak (also spray on head of pump to check leaking bolts /gaskets). If leaking, repair as needed. If no leaks are found with soapy water, stop compressor and listen for leak at the pressure switch unloader valve. If no air appears to be leaking from the compressor then most likely problem is with reed valves or gasket in the head. Remove head very carefully trying not to tear gaskets. Examine reed valves for broken parts and or burned /broken gaskets. If gaskets or reed valves are bad, the discharge air tube will be very hot. Repair as needed. Good luck
Posted on Jan 20, 2011
You may have a short in the motor itself. You may need to have the electric motor checked. It could be dangerous to continue using .
Posted on Apr 23, 2012
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