C4.4 (Mech) Industrial Engine Caterpillar

Turbocharger

Usage:

C4.4 2L2

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Illustration 1	g00991357
Typical example

(1) Actuator rod

(2) Actuator

(3) Turbocharger

Tighten the nuts (4) to the following torque. ... 44 N·m (32 lb ft)

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

Tighten the bolt (6) to the following torque. ... 22 N·m (16 lb ft)

The maximum test pressure for the wastegate ... 205 kPa (30 psi)

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

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Table 1
Engine kW	The pressure for the wastegate
57.5 - 62⁽¹⁾	100 ± 3 kPa (14.5040 ± 0.4351 psi)
68 - 74.5⁽²⁾	123 ± 3 kPa (17.8399 ± 0.4351 psi)
64 - 70⁽³⁾	131 ± 3 kPa (19.0002 ± 0.4351 psi)
74.5⁽⁴⁾	133 ± 3 kPa (19.2903 ± 0.4351 psi)
81 - 87⁽⁵⁾	138 ± 3 kPa (20.0155 ± 0.4351 psi)

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⁽¹⁾	TC
⁽²⁾	TA
⁽³⁾	TC
⁽⁴⁾	TC
⁽⁵⁾	TA

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