C15 and C18 On-Highway Engines Exhaust Gas Valve (NRS) - Assemble Caterpillar


Exhaust Gas Valve (NRS) - Assemble
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1.1. Assembly Procedure

Assembly Procedure

Table 1
Required Tools 
Tool  Part Number  Part Description  Qty 
5P-3931  Loctite C5-A Copper Anti-Seize Lubricant 
Multipurpose Grease 


    Illustration 1g01896079

  1. Lubricate all of the O-ring seals with the lubricant that is being sealed.

  2. Install O-rings (9) and (10) onto spool (5).


    Illustration 2g01845473

  3. Install spool (5) into the actuator housing. Tighten spool (5) to a torque of 50 ± 5 N·m (37 ± 4 lb ft).

  4. Install solenoid (6), washer (7), and nut (8).

  5. Tighten nut (8) to a torque of 20 ± 2.5 N·m (177 ± 22 lb in).


    Illustration 3g01871983

  6. Fill the cavity (B) of the valve housing to the halfway mark with Tooling (B).


    Illustration 4g01845346

  7. Position actuator assembly (3) on valve housing (4). Install bolts (2).

  8. Install temperature sensor (1). Apply Tooling (A) to the threads on temperature sensor (1). Tighten temperature sensor (1) to a torque of 45 ± 5 N·m (33 ± 4 lb ft).

End By:

  1. Install the exhaust gas valve.

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