Have a sd-501 with trimmer blade with 31,500 cuts. Started to get incomplete cuts. Pulled the unit and found screws for bottom plastic plate had all the screws loose. Pulled the plate and checked that there was nothing under there. Put back together and the next 300 cuts were perfect. Them the operator said he was getting incomplete cuts again. My question is do i just have a dull blade or is maybe something else happening to the unit. No do not touch screws have been tampered with. Thanks for any help. It also has a new trimmer board installed but was doing this before trimmer board was replaced.
Later Warren
Later Warren
Comment