SEAL-BRAKE 1726007 - Caterpillar

Remove Fuel Injection Control Linkage
START BY:a. remove rocker shaft assemblies and push rodsb. remove front drive housing 1. Remove the bolts that hold the brackets for shaft (3) to the front of the cylinder block. Disconnect the levers on shaft (3) from the levers on shafts (1) and (2), and remove shaft (3) from the engine. 2. Remove levers (5) and (6) and brackets (4) from shaft (3). 3. Remove bearings (7) from brackets (4) with tool group (A). 4. Remove access covers (8) from over the camshafts. 5. Remove bolts (10) and the caps that hold the levers of rod assemblies (9) to fuel control shafts (1) and (2).6. If necessary, remove the cover from the front right side of the flywheel housing, and use tool (B) to turn the engine flywheel until the camshaft is moved in a position so the levers of rod assemblies (9) can be removed between the cylinder block and camshaft. 7. Remove bolts (12), and remove lever assemblies (11) and fuel control rod assemblies (9) as a unit from each cylinder head assembly. See Step 6 if the levers on the lower ends of rod assemblies (9) do not have enough clearance to be removed from the engine. 8. Remove locknut (13) and the washer to remove rod assembly (9) from lever assembly (11). 9. Remove levers (15) from control shafts (1) and (2).10. Remove the bolts and supports (14) from each side of the engine. If necessary, remove bearings (16) from supports (14) with tool group (A).
Steps 11, 13, 14 and 16 are not necessary in order to remove the fuel injection control linkage on the later 3512 and 3516 Engines. New thicker walled fuel control shafts are now used on the 3512 Engines. A one piece shaft is now used on the 3512 instead of the former two piece shaft that was held together with a collar. The 3516 continues to be a one piece shaft. Formerly, different shafts for the 3512 were used on each side of the engine. The later 3512 shafts can be used on either side of the engine. It is Caterpillar's recommendation that if a replacement shaft is necessary, both shafts be installed at the same time for correct weight balance.
Earlier 351211. Remove the bolts, and remove collar (17) that holds the control shafts together from each side of the engine. 12. Remove bolts (19) that hold bracket assembly (18) to each side of the engine block.13. Remove the bolts that hold collars (20) to control shafts (1) and (2). 14. Remove collars (20) and bracket assembly (18) from both of the control shafts. 15. Pull control shafts (1) and (2) out of each side of the engine block. 16. Remove the shorter control shaft (21) from bracket assembly (18) on each side of the engine, and remove the shafts from the engine.17. Remove the bolts, and remove bracket assembly (18) on each side of the engine. 18. Use tool group (A), and remove