Procedure for Installing the Product LinkTM PL631/PLE631 Is Now Available for Certain 374 and 390 Excavators, Mobile Hydraulic Power Units, and OEM Excavator Based Speciality Solutions {7606} Caterpillar

Excavator

374F (S/N: DPE1-UP; EBF1-UP; NFJ1-UP; MFL1-UP; XWL1-UP)

390F (S/N: EXB1-UP; HJD1-UP; PYE1-UP; HNG1-UP; FEH1-UP; GAY1-UP)

Mobile Hydraulic Power Unit

374F MHPU (S/N: H251-UP)

390F MHPU (S/N: H271-UP)

OEM Excavator Based Specialty Solution

374F OEM (S/N: FH91-UP; P4L1-UP)

390F OEM (S/N: N641-UP; P4J1-UP)

Reference: Special Instruction , REHS9111 , "Installation Procedure for the Pro Product Link^TM PL641 and PL631 Systems"

Reference: Special Instruction , REHS8850 , "Installation Procedure for the Elite Product Link^TM PLE601, PLE641, and PLE631 Systems"

Procedure for installing the Product Link^TM PL631/PLE631 is now available for the machines listed above.

The following changes are now available for the products within the listed serial numbers.

Illustration 1	g06373779
(A) PL631 connector (B) Product Link harness connector

Currently at the Caterpillar Xuzhou Ltd. (CXL) facility, China regulation prohibits activation of the PL631/PLE631 systems. When these machines are shipped from the CXL facility, the PL631 connector (A) is disconnected, and the dummy connectors are installed to protect both the PL631 connector (A) and the product link harness connector (B). Refer to the following procedure to install and activate the PL631 connector (A).

Installation Procedure

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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.

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Illustration 2	g06373780
(C) Screws

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Illustration 3	g06373782
(C) Screws (D) Bolts

1. Remove the eight screws (C) and three bolts (D), then remove the cover.
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   Illustration 4	g06373783
   (A) PL631 connector

2. Under the cover, find the PL631 connector (A) beside of ET connector. Cut the strap.
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   Illustration 5	g06373785
   (A) PL631 connector (B) Product link harness connector (E) Dummy connector

3. Remove the dummy connector (E) and the product link harness connector (B) connected to the PL631 connector (A).

4. Connect the Cat ^® ET to the machine to ensure that the PL631 ECM is installed correctly.

Refer to Special Instruction , REHS9111 for installing the PL641 and PL631 systems.

Refer to Special Instruction , REHS8850 for installing the PLE641 and PLE631 systems.