Figure 12. Item 32
of the bearing in former assemblies requires the removal of the fan assembly and partial disassembly. The
former assemblies can be updated to include a grease fitting by installing the current housing.
Item 34 Engine Tuneup
There is no scheduled interval for performing a complete engine tuneup. As long as the engine performance is
satisfactory, a complete tuneup should not be required. Minor adjustments such as injector timing, exhaust
valve clearance, governor, and throttle delay (Items 22, 23, and 24) should be made every 50,000 miles to
compensate for normal wear on parts.