SPECIAL AR 3157453 - Caterpillar

Check Assembled Dimension for Rack Lever Travel
Table 40
Recommended Parts
Part Number Description Quantity
2W-9305 Plate (1) 1
8N-3087 Stop (1) 1
(1) This part may be required when replacing the 8N-2501 Governor Housing Assembly.When replacing the 8N-2501 Governor Housing Assembly in 3300 Engines with Scroll Fuel Systems, it is possible to have an interference between components within the governor or the rack may not move all the way to the "Fuel Off" position. These conditions may exist because of casting shifts during the manufacturing process of the governor housing.To ensure that the governor will function properly, it is necessary to check the assembled dimension for rack lever travel and possibly replace the original 8N-3087 Stop and 2W-9305 Plate. Follow the procedure in this instruction to perform this check.
Illustration 176 g06332188
Assemble the components of the governor group using a new 8N-2501 Governor Housing Assembly and the original 8N-3087 Stop and 2W-9305 Plate. Refer to the Service Manual for the assembly procedure
Measure the distance between the face of the governor housing assembly and rack lever dimension (A). This dimension should be 18.6 1.0 mm (0.73228 0.03937 inch).
If dimension (A) is within the specified limit of 17.6 to 19.6 mm (0.69291 to 0.77165 inch), install the governor assembly.
If dimension (A) measured in Step 2, is greater than 19.6 mm (0.77165 inch), proceed to Step 4.
If dimension (A) measured in Step 2, is less than 17.6 mm (0.69291 inch), proceed to Step 6.
Illustration 177 g06332199
(1) 8N-3087 Stop
(2) 2W-9305 Plate
(3) Grind Location
Remove 2W-9305 Plate (2) and grind some material from the plate at area (3) shown shaded in Illustration 177. Reinstall plate (2) and check for correct dimension (A).
Install the governor assembly when the correct dimension (A) has been achieved.
Remove the original 8N-3087 Stop (1) and 2W-9305 Plate (2), and replace with new parts.
Check dimension (A) using Step 2. Install the governor assembly when the correct dimension (A) has been achieved.