I changed the HST Trans oil Filter with P/N HHTA0-59900. It did not have a magnetic filter nor did the new one. I was also given a HH670-37710 Suction Filter. Where is this filter located? I see no reference in the manual except on the service interval index showing hydraulic oil filter to change at 400. I thought on the GL 5240 hydraulic and transmisson oil where in the same system.