SEAL 0964307 - Caterpillar

Illustration 8 g00811648
(17) Socket head screws.
Illustration 9 g00811651
(15) Two horizontal bolts. (18) Two vertical bolts. (17) Two socket head screws
Tighten socket head screws (17), two horizontal bolts (15), and two vertical bolts (18) finger tight.
Tighten socket head screws (17) to an initial torque of 1 .2 N m (9 2 lb in).
Tighten horizontal bolts (15) to an initial torque of 5 3 N m (44 27 lb in).
Tighten vertical bolts (18) to an initial torque of 5 3 N m (44 27 lb in).
Tighten socket head screws (17) to a final torque of 12 3 N m (9 2 lb ft).
Tighten horizontal bolts (15) to a final torque of 47 9 N m (35 7 lb ft).
Tighten vertical bolts (18) to a final torque of 47 9 N m (35 7 lb ft).
Repeat Step 1 through Step 15 for the remainder of the injectors.
Check the fuel system for leaks by cranking the engine with the disabled injection. Then check the hydraulic pressure. Compare the pressure to the desired pressure. Cranking Without Injecting
Cranking the engine with the disabled injection may be performed by one of the following methods:
Disconnect the injector harness of the cylinders which have been reinstalled. Allow the engine to idle. Visually inspect the injector's components for high pressure oil leaks.
Activate the system "Crank Without Inject" if the option is available. On Track-Type Tractors, a "Crank Without Inject" plug can be assembled in the engine harness. On Off-Highway Trucks, the "Ground Level Shutdown" can be activated if the option is available.
When you are using the CAT ET or the ECAP, the injection may be disabled by interactive diagnostics. The engine can be left idling while the injectors' components on the affected cylinders are visually examined for high pressure oil leaks.Checking For Leaks, Air In The System, And Combustion Gas Leakage
Fuel could leak from the upper O-ring seal on the injector. Oil under high pressure may leak from the connections at the jumper tube. The high pressure oil is discharged out of the injector onto the cylinder head during engine operation. This is not a leak.If air has entered the fuel supply system, multiple injectors on one bank may malfunction. If the injectors were not properly tightened, combustion gas and air could enter the injector through the lower O-ring seal. If the lower O-ring seal should fail, replace the O-ring seal. Perform the torque sequence again.Note: Air in the system may be detected by gently touching the flexible return line. Check for extreme pulsations and pressure spikes through each line. As an alternative, install a sight glass in each return line. Run the engine. Check for air bubbles in the sight glass.Combustion gas leakage can occur from the base of the injector. Combustion gas leakage will usually affect the injector that has the leak first. The leakage will then affect the injectors that are downstream of the leak.
Failure to follow any of the procedures in this instruction may