LINK & BEARING AS 9U1856 - Caterpillar

Illustration 1 g00376593
Fuel injection nozzle assembly (1) Tighten the banjo bolts of the fuel return line (not shown) to the following torque. ... 9 N m (80 lb in) (2) Tighten the nut of the clamp to the following torque. ... 22 N m (16 lb ft) (3) Clamp (4) Tighten the union nut of the high pressure fuel line (not shown) to the following torque. ... 27 N m (20 lb ft) (5) Spacer (6) O-RingWhen an O-ring is installed, place a thin film of liquid soap on the O-ring in order to prevent damage to the O-ring. (7) Fuel injection nozzle (8) Seat washer that is 2.0 mm (0.08 inch) thickRemove the original seat washer from the hole for the fuel injection nozzle. Do not reuse the original seat washer (8) . (9) Hole for fuel injection nozzle (7) (10) Threaded hole for spacer (5) When a fuel injection nozzle is installed, the following new components should be installed:
Clamp
O-ring
Seat washerNote: Use clean SAE J-967 oil (ISO 4113) when you are conducting the test. The oil is available in 5 gallon containers ( 6V-6068 Calibration Fluid ) and 55 gallon containers ( 6V-6067 Calibration Fluid ). If dirty oil is used for the test, the components of the fuel injection nozzle will be damaged.Bench test the fuel injection nozzles at a temperature of 18 to 20°C (64 to 70°F). Refer to theTesting and Adjusting, "Fuel Injection Nozzle - Test" topic for additional information.
Table 1
Code Letter     Pressure Setting    
Stage one Stage two (1)    
UA    
19257 kPa (2793 psi)    
23311 kPa (3381 psi)    
( 1 ) Disassembly of the fuel injection nozzle is required to test the pressure of stage two. Disassembling the fuel injection nozzle should be performed by personnel with the correct training. The Testing and Adjusting, "Fuel Injection Nozzle - Test" describes the procedure for testing the pressure of stage one.Leakage in 10 seconds ... 0 drops