thanks ,butI know how to check the rakers , but I bought a husqvarna 3/8'' file guide which has a small so called depth gauge attached with 2 holes 1 for soft and1 for hard wood there is no way it would reach across 2 teeth . I think your answer should be talking about fileing rakers, not teeth!! My new 235e is going good, not sure of new type chain ajuster ,but new chain should stop stretching