description wacker bs50-4as rammer the outstanding features of wacker neuson four-cycle rammers are the compact design and high performance. the long shoe stroke, high percussion rate and high stroke energy combined with fast advance travel achieve excellent results. california proposition 65 warning. features low oil shutoff provides unique technology that protects the engine. when starting the unit, a sensor detects no oil or low oil and does not allow the engine to start. purge bulb evacuates air from the fuel line for easy starting. a unique four-stage air filtration system provides a virtually dust-free engine for longer life and improved durability. the system includes a last chance filter that protects the engine during air filter maintenance. exclusive carburetor compensates fuel/air mixture for optimum performance and extended air filter life. dedicated 4-cycle crankcase for increased durability and simplified maintenance. ignition and fuel shut off built into the throttle control provides simplified operation. the guide handle’s engineered shock mount system reduces hav (hand-arm vibration) and improves specifications acme tools brand name wacker neuson acme tools part number 5100030598 assembled weight (lbs) 141 california proposition 65 warning required yes country of origin germany globaltradeitemnumber (gtin) 00400100009772 manufacturer warranty 1 year manufacturer's warranty package weight 142 package weight (lbs) 142 shipping weight (lbs) 158 upc 400100009772