154520-1420 ZEXEL 9 421 611 339 BOSCH GOVERNOR COVER 9421611339 1545201420

1. Remove oil filter element (1). 2. Remove two bolts (4).3. Remove four bolts (3).4. Remove six bolts (2). Remove oil filter base, gaskets and O-rings. The following steps are for the installation of the oil filter and oil filter base. Position gaskets and install all bolts finger tight before tightening to the standard torque.5. Be sure the O-rings are in place on oil filter base. Position gaskets and oil filter base. Install six bolts (2).6. Install four bolts (3).7. Position gasket. Install two bolts (4). Tighten all the bolts to standard torque.8. Install oil filter element (1).Disassemble & Assemble Oil Filter Base
Start By:a. remove oil filter base 1. Remove the O-rings. Remove bolt (1). 2. Remove relief valve group (2). 3. Remove four bolts and remove covers (3). Remove oil cooler by-pass valve (5), oil cooler by-pass valve spring (4) and spool (6). 4. Remove plug (7). Remove oil filter by-pass valve (8). The following steps are for the assembly of the oil filter base.5. Install by-pass valve (8) and plug (7).6. Install oil cooler by-pass valve (5), oil pump by-pass valve (6) and spring (4). Position covers (3). Install four bolts.7. Position relief valve group (2). Install bolt (1). Install O-ring seals.End By:a. install oil filter base