BOLT 8T0352 - Caterpillar

Generator Sets (23Z, 24Z, 25Z, 67Z, 70Z, 73Z),
Industrial (49Y, 95Y, 27Z, 65Z, 68Z, 71Z),
Marine (50Y, 96Y, 29Z, 66Z, 69Z, 72Z),
Vehicular (51Y, 97Y, 28Z, 99W, 54Z, 96Z)Introduction
The information in this instruction is for the on-engine adjustment of a 3161 Governor on the 3500 Family of Engines.Specific tools that will be needed for the adjustment procedure are also given in a Tools Needed chart.Tools Needed
Governor Preparation
Because of the clearance between the fuel control linkage cover and governor, the upper left side bolt at location (A) must be installed before the cover (1) is put on the terminal shaft, and before the governor is fastened to the drive adapter housing. The other bolts can be installed after the governor is positioned on the engine.Install a new 2W9063 Washer and a new 4H1722 Seal (lip type) in the Fuel Control Linkage Cover.Put clean engine oil on the lip of the seal, and install the cover over the governor terminal shaft. There are two control levers for the 3161 Governor used on 3500 Engines. Lever (2) has a fixed pin and lever (3) has an adjustable pin. Lever (2), with the fixed pin, is used on the 3161 Generator Set and earlier Standard Governors.Lever (3), with the adjustable pin, is used on 3161 Governors with fuel air ratio control adjustment and torque rise features. Lever (3) is used to synchronize governor fuel air ratio control adjustment and torque rise schedules to engine fuel zero reference position. Lever (3), with the adjustable pin, can be used on a right side or left side mounted commercial governor. To convert the lever from right side use to left side use, remove the lock bolt and lock from the adjustable pin.Remove the adjustable pin from the lever, turn it around, and install it into the lever the opposite way. Install the lock and bolt into the adjustable pin and tighten just enough to hold in position. The lever can now be used on the other end of the terminal shaft for left side mounted governors. The lever and pin (fixed or adjustable) connect the governor terminal shaft to the fuel control linkage stop lever. The lever pin moves in notch (4) of the stop lever. This causes the two to move together. The 3161 Generator Set and earlier Standard Governors with fixed pin control levers do not require special adjustments when installed on the engine.
Some industrial units were sold with fuel air ratio control adjustment without the adjustable lever. These units require setting the fuel air ratio control adjustment after governor installation.
After fuel control linkage cover (1) is in position, install lever (2) on the governor terminal shaft. Tighten the bolt to a torque of 25 7 N m (18 5 lb ft). Control levers can only be installed the correct way, because of the flat and groove of the terminal shaft and the lever pin.This control lever is for right-side mounted governors. On control levers for left-side mounted governors, the pin is reversed. For