DISC-FRICTION 6Y7956 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5F-4764 Pry Bar 1 Start By:
Remove the rocker arms and the rocker arm shaft. Refer to Disassembly and Assembly, "Rocker Arm and Shaft - Remove".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g01259747
Remove valve bridges (1). Note the location and orientation of the valve bridges for installation purposes.
Disconnect harness assembly (2).
Illustration 2 g01259759
If the injector hold down bolt is loose during the removal procedure, inspect the injector bore for wear and debris. Replace the clamp and spacer.
Remove bolt (3) and spacer (4) from clamp (5).
Place an identification mark on electronic unit injector (6) for installation purposes. Each electronic unit injector must be reinstalled in the original location in the cylinder head.
Illustration 3 g01259777
Use Tooling (A) in bolt hole in order to pry clamp (5) and electronic unit injector (6) free from the cylinder head. Note: Improper use of Tooling (A) can cause damage to the spring or the unit injector.
Remove electronic unit injector (6) from the cylinder head.
Illustration 4 g01259809
Remove O-ring seals (7) from electronic unit injector (6).