TUBE AS 4688537 - Caterpillar

Illustration 1 g01233803
Track Feller Buncher The track feller bunchers are available in three models.
541 Track Feller Buncher
551 Track Feller Buncher
552 Track Feller BuncherThe module discusses the features and the operation of the hydraulic system. In addition, the major electrical components and the hydraulic components are discussed.The track feller bunchers are a swing to the tree type of feller buncher.The 552 Track Feller Buncher is equipped with a system that levels the upper structure of the machine.The track feller bunchers are designed to accommodate three different heads:
A felling head
A harvester head
An intermittent sawThe track feller bunchers are equipped with a load sensing hydraulic system. The hydraulic functions are controlled by the electrohydraulic system.Electrical
The track feller bunchers have the following electrical features:
Advanced Diesel Engine Management ADEM III (electronic engine control module)
IQAN programmable control system
Electric pump (hydraulic oil filler)
Electric operated hood
Two speed switch (travel)
Medium speed switch
Reversing fan switch (if equipped)
Control for the engine preheater (if equipped)
Switches for leveling system (if equipped)
Proportional solenoid (control valves)
Stop button (saw)ReferenceFor more information on the electronic control module (ECM), refer to Troubleshooting, SENR9806.ReferenceFor more information on the electric pump (hydraulic oil filler), refer to Systems Operation/Testing and Adjusting, "Location of Hydraulic Components".ReferenceFor more information on the operation of the hood, refer to Systems Operation/Testing and Adjusting, "Location of Hydraulic Components".ReferenceFor more information on the control for the engine preheater, refer to Operation and Maintenance Manual.Hydraulic
The track feller bunchers have the following hydraulic features:
Leveling system (if equipped)
Implement control valve
Pilot hydraulic system
Travel control valve
Saw pump (felling head)
Hydraulic cooling fan (if equipped)
Intermittent Saw (if equipped)ReferenceFor more information on the leveling system, refer to Systems Operation/Testing and Adjusting, "Leveling System".ReferenceFor more information on the implement control valve, refer to Systems Operation/Testing and Adjusting, "Main Control Valve".ReferenceFor more information on the pilot hydraulic system, refer to Systems Operation/Testing and Adjusting, "Pilot Hydraulic System".ReferenceFor more information on the travel control valve, refer to Systems Operation/Testing and Adjusting, "Control Valve (Travel)".ReferenceFor more information on the saw pump, refer to Systems Operation/Testing and Adjusting, "Piston Pump (Saw)".ReferenceFor more information on the hydraulic cooling fan, refer to Systems Operation/Testing and Adjusting, "Pilot Hydraulic System".