COVER 5027396 - Caterpillar

Do not operate the machine if any guards or covers are missing or inadequately secured. Personnel could be seriously injured or machine damage may occur.
Observe the safe working load limits of all lifting and blocking devices and keep a safe distance from suspended/blocked loads. Personnel may be seriously injured or killed by falling loads.
Required Parts
Table 1
462-9022 Pressure Sensor Gp
Qty Part Number Description
1 385-1174 Pressure Sensor Gp
1 422-3830 Sensor Harness As
1 531-0262 Bracket
1 206-1345 Cable Strap
2 8T-7547 Bolt
3 217-9039 Cable Strap Note: Check that the components of the sensor kit are all present and in good condition. The list of components are listed in Table 1.Removal Procedure
Perform the following steps to remove the existing NRS differential pressure sensor (1) ( 397-2874 Pressure Sensor Gp).
Illustration 1 g06007308
(1) NRS differential sensor
(2) Sensor connection for engine harness
(3) Head bolts (M8 x 20mm long flanged)
Unplug the engine electrical harness (2) from the sensor.
Remove the two M8 x 20mm long flanged head bolts (3) and discard.
Remove the sensor, complete with 2 seals and discard.
Clean and inspect the mating face of the NRS manifold onto which the sensor sits.Installation Procedure
Perform the following steps to assemble the 462-9022 Pressure Sensor Gp.
Ensure that both seals are correctly seated in the grooves of the sensor and are still located when fitting the sensor to the engine.
Illustration 2 g06274377
(4) 385-1174 Pressure Sensor Gp
(5) 531-0262 Bracket
(6) - Port
(7) + Port
(8) 8T-7547 Bolts
Position the sensor (4) onto the NRS manifold, ensuring that the sensor electrical connector is positioned as shown in Illustration 2. The sensor body is marked with a "+" and "-". Ensure that the sensor is orientated correctly.
Place the support bracket (5) onto the sensor as shown in Illustration 2.
Assemble the sensor and support bracket onto the NRS manifold. Tighten the two bolts (8) to a torque of 18 2 N m (13.3 1.5 lb ft) using a 13mm AF socket as shown in Illustration 2.
Illustration 3 g06007310
(9) 422-3830 Sensor Harness As
(10) Red Latch
Illustration 4 g06274386
(11) 217-9039 Cable Straps
Plug one end of the sensor harness (9) into the sensor. Engage the red latch (10) to lock the sensor harness to the sensor as shown in Illustrations 3 and 4.
Route the sensor harness as shown in Illustration 4.Retain the sensor harness to the support bracket using three cable straps (11). Remove excessive length from the cable straps.
Illustration 5 g06007314
(12) Engine Harness
Plug the other end of the sensor harness into the engine harness (12). Engage the red latch on the engine harness to lock the sensor harness as shown in Illustration 5.