New Turbocharger On Certain C7.1 Machine Engines {1052} Caterpillar

Excavator

326D2 (S/N: REC1-UP; MZH1-UP; JFL1-UP; XAM1-UP; LCW1-UP; MGW1-UP; NBX1-UP; KGY1-UP)

329D2 (S/N: RGA1-UP; KJB1-UP; SHJ1-UP; TMJ1-UP; WDT1-UP; THW1-UP)

330 GC (S/N: FEK1-UP)

330D2 (S/N: PTE1-UP; ZBF1-UP; RCK1-UP; SZK1-UP; XDR1-UP)

Wheel Skidder

525D (S/N: 2L51-UP)

Description Of Change: There isolated instances of issues with the turbocharger. The issues with the turbocharger have led to an event code E1044 (2) High Intake Manifold Pressure being displayed. Refer to Troubleshooting, Intake Manifold Air Pressure Is High for more information.

A new turbocharger has been introduced. The new turbocharger is an improved design.

Adaptable To:

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Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.

Refer to Disassembly and Assembly for the correct procedures.