HP Chain Saws Technical Supporthttp://www.fixya.com/support/hp/chain_sawsSolved technical support problems provided by FixYa users.en-usCopyright (c) 2007 FixYa, LTD. All rights reserved.info@fixya.comSat, 19 Dec 2009 19:55:24 GMT80The center roller bearing worn out, the plastichttp://www.fixya.com/support/t2746791-center_roller_bearing_worn_out_plasticThe center roller bearing worn out, the plastic cog-wheel is out of centerSat, 19 Dec 2009 19:55:24 GMT