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Champion Z5941 Automatic Tank Drain Repair Kit

Champion Z5941 Automatic Tank Drain Repair Kit

Part #: Z5941
Availability : Contact Us
Repair Kit for ZTD1 Drain Valve





IF VALVE  FAILS TO OPEN: Check for leaks in line from unloader or pressure release valve to automatic drain valve. Check to see that timer has not been unscrewed too far. If trouble persists, remove intake plug and clean chamber. If this fails, remove diaphragm cover and check the diaphragm and diaphragm plate for cause of non-operation.

IF VALVE  FAILS TO CLOSE: Check timer adjustment to see that air is bleeding out. If air continuously bleeds from timer while compressor is running, centrifugal unloader or pressure switch release valve is leaking. Check compressor or pressure switch literature/instructions for remedy. If air continuously bleeds from timer when compressor is not running, inspect the compressor check valve. Replace and/or clean check valve if air is leaking back from tank.

If timer works correctly and valve fails to close, remove intake plug, spring and valve stem assembly. This assembly includes the valve stem, o-ring, disc and nut. They are not attached to the diaphragm plate and will drop out through the bottom of valve chamber opening. Clean intake chamber and disc and replcae if disc is scored. If valve opens and only air is exhausted, check flexible tube in tank. It must reach the bottom of the tank and be free of leaks. Timer may be adjusted under operating conditions.


Shut off and lock out/tag out compressor. Drain tank completely of air and water before installing or servicing valve. Failure to relieve pressure may cause injury and/or equipment damage. Disconnect auto drain from receiver at the bottom fitting. Remove intake plug and clean screen which may become clogged with scale or debris from tank. Unless the fitting and screen are kept clean, debris may work into the drain valve seat, causing the valve to stick or fail to close.