95374001 Mercury NUT, Nylon

At operating temperatures, the oil tank is hot and under pressure. Hot oil can cause burns. Remove the fill plug only when the engine is stopped and when the fill plug is cool enough to touch with your bare hands.
Identify all hydraulic lines as they are removed for reinstallation purposes. Cap and plug all lines and fittings to prevent any contaminants from entering the system.3. Release the pressure in the hydraulic system by slowly loosening the fill cap located on the top of the hydraulic oil tank.4. Drain the hydraulic oil from the hydraulic oil tank. The capacity of the hydraulic oil tank is 80 liters (21.1 U.S. gallons). 5. Disconnect three hose assemblies (4) from fan motor (2). Cap and plug immediately.6. Remove the bolt that fastens clamp (5) to guard (3).7. Remove the two bolts and brace (7) from between the hydraulic oil tank and the radiator.8. Remove four bolts (6). Remove the three bolts that fasten guard (3) to the left side of shroud (8).9. Remove the three bolts, and remove shroud (8) from left side of the radiator, and remove the shroud.10. Remove the remaining two bolts (1), and remove fan motor (2) and guard (3) from the left side of the machine. 10. Remove four bolts (10), and remove fan (9) from fan motor (2).11. Remove two bolts (11), and remove fan motor (2) from guard (3). For installation of the fan motor, reverse the removal steps. After the fan motor has been installed, fill hydraulic oil system with hydraulic oil to the correct level. See the Operation & Maintenance Manual, Form No. KEBU7503, for the correct procedures.Disassemble & Assemble Fan Motor
Start By:a. remove fan motor 1. Remove nut (2), and remove adapter (1) and the woodruff key. 2. Remove four bolts (3), and remove end cover (4) from the housing. 3. Remove relief valve (5) and check valve (6) from end cover (4). 4. Remove O-ring seals (7) and back-up ring (8) from relief valve (5). Check the O-ring seals and back-up ring for wear or damage, and replace if necessary. 5. Remove O-ring seals (9) and back-up ring (10) from check valve (6). Check the O-ring seals and back-up ring for wear or damage, and replace if necessary. 6. Remove housing (11) and thrust plate (12) from the shaft cover. 7. Remove seal (13) from thrust plate (12). Check the seal for wear or damage, and replace if necessary. 8. If necessary, remove four dowel pins (14) from housing (11).9. Remove two seals (15) from housing (11). Check the seals for wear or damage, and replace if necessary. 10. Remove drive gear (16), idler gear (18) and thrust plate (19) from shaft cover (17).11. Remove the seal from thrust plate (19). Check the seal for wear or damage, and replace if necessary. 12. Remove retaining ring (20) and lip-type seal (21) from shaft cover (17). Check the lip-type seal for wear or damage, and replace if necessary. For assembly of the fan motor, reverse the disassembly steps.End By:a. install fan motor