C4.4 Engines for Caterpillar Built Machines Turbocharger Caterpillar


Turbocharger
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C4.4 Engines for Caterpillar Built Machines [UENR4523]
AIR INLET AND EXHAUST SYSTEM
TURBOCHARGER GP
C4.4 Engines for Caterpillar Built Machines Turbocharger


Illustration 1g03544117
Typical example

(1) Tighten the studs to the following torque. ... 18 N·m (13 lb ft)

(2) Tighten the nuts to the following torque. ... 44 N·m (32 lb ft)

(3) Tighten the bolt to the following torque. ... 18 N·m (13 lb ft)

(4) Actuator

The maximum test pressure for the wastegate ... 112 kPa (16.2445 psi)

The movement for the rod actuator ... 1 mm (0.0394 inch)

Table 1
Engine kW  The pressure for the wastegate 
106 - 90  170 kPa (25 psi) 
90 - 74.5  151 kPa (22 psi) 
74.5 - 55  136 kPa (20 psi) 

Note: On certain applications, the pressure for the wastegate is detailed in table 2.

Table 2
Engine kW  The pressure for the wastegate 
74.5 - 60  116 kPa (17 psi) 


Illustration 2g03544119
Typical example

(5) Tighten the bolt to the following torque. ... 9 N·m (80 lb in)

(6) Tighten the bolt to the following torque. ... 18 N·m (13 lb ft)

(7) Tighten the bolts to the following torque. ... 22 N·m (16 lb ft)

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