ENGINE AR-CORE 4579058 - Caterpillar

Track Feller Buncher:
511 (S/N: 5111-UP)
521 (S/N: 5211-UP)
522 (S/N: 5221-UP)
532 (S/N: 5321-UP)
541 (S/N: 5411-UP)
551 (S/N: 5511-UP)
552 (S/N: 5521-UP)
Service Magazine SEPD1655, 26 August 2013, "Installation of Ventilation Openings in the Hood of Certain Track Feller Bunchers Is Required to Reduce Temperatures Under the Hood". Disregard this article. See the replacement article that follows.Description of Change: The installation of ventilation openings on the hood of certain Track Feller Bunchers is used to reduce temperatures under the hood.ReferenceSpecial Instruction, REHS8497, "Installation Procedure for Ventilation Openings on the Hood of Certain Track Feller Bunchers".The Special Instruction is available through the normal literature distribution system. The publication can also be found on the Caterpillar Service Information System (SIS).Adaptable To: This change is adaptable to the following machines:
511 (S/N: 511298-503)
521 (S/N: 521327-507)
522 (S/N: 522262-524)
532 (S/N: 532177-501)
541 (S/N: 541205-834)
551 (S/N: 551115-823)
552 (S/N: 552145-841)This change is effective with the following machines:
511 (S/N: 511504-UP)
521 (S/N: 521508-UP)
522 (S/N: 522525-UP)
532 (S/N: 532502-UP)
541 (S/N: 541835-UP)
551 (S/N: 551824-UP)
552 (S/N: 552842-UP)