Abnormal noise from the cylinder

Q: Abnormal noise from the cylinder (Tanabe LSHC-20B/30A/40A): what to do?

Cause: Foreign matter in cylinder, worn cylinder/piston, too thin head gasket, broken valve plate or spring, worn piston pin bush. What to do: Inspect cylinder, rebore and fit oversize piston, fit correct gasket, replace valve parts or bush

Tanabe LSHC-20B/30A/40A, two-stage air-cooled reciprocating air compressor (emergency / service air)

Possible cause

Foreign matter in cylinder, worn cylinder/piston, too thin head gasket, broken valve plate or spring, worn piston pin bush

What to do

Inspect cylinder, rebore and fit oversize piston, fit correct gasket, replace valve parts or bush

Manufacturer's manual, p. 27

See the assembly on the 3D model

Other Tanabe LSHC-20B/30A/40A faults

Abnormal noise in the crankcaseWorn main or rod bearing, loose connecting rod bolt High delivery air temperatureLeaking delivery valve, faulty valve seat gasket, carbon on valves, poor cooling Heavy carbon on valvesHigh oil consumption, wrong oil level or poor oil Pressure does not risePipe leak, damaged valve or dirt on seat, worn piston rings Oil pressure does not increaseLow oil, worn bearing metal, reverse rotation High oil consumptionWorn piston/cylinder or rings, oil above H mark Excessive vibrationLoose bolts or flywheel, weak foundation Piston seizureDust entering the cylinder V-belt slippingSeized piston or bearing, belt too slack

From the manufacturer's manual “EM-20-4 INSTRUCTION MANUAL FOR TANABE AIR COMPRESSOR TYPE LSHC”. Check against the original on board before work.