2015/04/15 Caterpillar

A Procedure to Install Improved Flaps on Hood and Upper Frame is Now Used on Certain 521B and 522B Track Feller Bunchers {7051, 7150, 7251}

Usage:

521B F7B

Track Feller Buncher: 521B (S/N: F7B1-UP) 522B (S/N: F7C1-UP)

Description of Change: A procedure to install improved flaps is now used on the hood and upper frame on the above listed models of Track Feller Bunchers. The improved flaps will help prevent limbs and debris from falling into the swivel area on these machines.

Adaptable To:

ReferenceRefer to Special Instruction, SEHS0229, "Procedure to Install Flap Kits on Hood and Upper Frame on 521B and 522B Track Feller Bunchers".The special instruction listed above outlines the steps to install the improved flaps. The special instruction also lists the parts that are required to complete the installation. Refer to the special instruction listed above for the information required for the installation of the improved flaps.

The improved flaps are adaptable to the following machines:

521B F7B1-306
522B F7C1-276

The improved flaps are effective in production with the following machines:

521B F7B307-UP
522B F7C277-UP

Caterpillar Information System:

Procedure to Install Flap Kits for the Hood and Upper Frame on 521B and 522B Track Feller Bunchers{7051, 7150, 7251} Procedure to Install Flap Kits for the Hood and Upper Frame on 521B and 522B Track Feller Bunchers{7051, 7150, 7251}

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