Lubrication System/Oil Pressure Regulating Valve 4. Remove lock nut to remove plate and element (A). M36447 -UN-29JAN90 M98,2040K,24 -19-14OCT85 5. Remove three cap screws to remove splash plate. 6. Remove two cap screws (A) to remove air cleaner base (B). Pull breather hose (C) out of air cleaner base. M36448 -UN-29JAN90 M98,2040K,25 -19-14OCT85 8. Remove cap screw and washer (A). M36450 -UN-29JAN90 CTM2 (19APR90) 40-11 16, 18, 20 & 24HP Onan Engines M98,2040K,27 -19-14OCT85 AllTractorManuals.com 130495 7. Loosen nut to remove air cleaner bracket. -UN-29JAN90 M36449 M98,2040K,26 -19-14OCT85 40 11