TACHOMETER ASSEMBLY 5L7445 - Caterpillar

Specifications
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Table 1
SPECIFICATIONS FOR 343-0620 Air Lines    
Callout     Part Number     Part Name     Specification Description    
9     328-7524     Hose     Hoses are for one time use. Install new hoses upon installation.    
10     9N-5085     Clamp     Torque to.........................
8.5 2 N m (75 18 lb in)    
15     332-0296     Pressure Sensor     Torque to.........................
10 2 N m (89 18 lb in)
Operating voltage............5.0 0.25 VDC
Operating temperatue.....
−40 to 125 °C (−40 to 257 °F)    Removal Procedure
Start By:
Remove the seat.
Remove the left side access door and covers.
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Remove floor mat (2) and remove panel (1) .
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Remove clamps (4) and remove bracket (3). Position harness assembly (5) out of the way.
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The cab has been removed for photographic purposes.
Disconnect harness assemblies (6) and (7) .
Remove bolts (12) .
Loosen four clamp assemblies (8) and remove the exhaust gas venturi assembly (11) .Note: Both hoses (9) are for one time use, and should be discarded after removal.
Remove two hoses (9) and discard the hoses.
Remove clamp assembly (10) and the tube assembly if needed.
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Remove NRS intake pressure sensor (15) and the O-ring seal.
Remove bolts (13) and remove the NRS differential pressure sensor (14). Remove O-ring seals from the NRS differential pressure sensor.Assembly Procedure
Assemble exhaust sensor lines group in the reverse order.
Tighten NRS intake pressure sensor (15) to a torque of 10 2 N m (89 18 lb in).
Tighten clamp assembly (10) to a torque of 8.5 2 N m (75 18 lb in).
Install two new hoses (9) .