TK711, TK721, TK722 and TK732 Track Feller Bunchers Hydraulic System Features Caterpillar

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)

• Reversing fan switch (if equipped)

• Logmate display (if equipped)

• Control for the engine preheater (if equipped)

• Switches for leveling system (if equipped)

• Proportional solenoid (control valves)

• Stop button (saw)

Reference: For more information on the electronic control module (ECM), refer to Troubleshooting, SENR9806.

Reference: For more information on the IQAN control system, refer to Systems Operation/Testing and Adjusting, "Electrical Components".

Reference: For more information on the electric pump (hydraulic oil filler), refer to Systems Operation/Testing and Adjusting, "Location of Hydraulic Components".

Reference: For more information on the operation of the hood, refer to Systems Operation/Testing and Adjusting, "Location of Hydraulic Components".

Reference: For more information on the two speed switch (travel), refer to Systems Operation/Testing and Adjusting, "Electrical Components".

Reference: For more information on the reversing fan switch, refer to Systems Operation/Testing and Adjusting, "Electrical Components".

Reference: For more information on the Logmate display, refer to Systems Operation, RENR3078, "Logmate 400 D".

Reference: For more information on the control for the engine preheater, refer to Operation and Maintenance Manual.

Reference: For more information on the switches that operate the leveling system, refer to Systems Operation/Testing and Adjusting, "Electrical Components".

Reference: For more information on the stop button for the saw, refer to Systems Operation/Testing and Adjusting, "Electrical Components".

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)

Reference: For more information on the leveling system, refer to Systems Operation/Testing and Adjusting, "Leveling System".

Reference: For more information on the implement control valve, refer to Systems Operation/Testing and Adjusting, "Main Control Valve".

Reference: For more information on the pilot hydraulic system, refer to Systems Operation/Testing and Adjusting, "Pilot Hydraulic System".

Reference: For more information on the travel control valve, refer to Systems Operation/Testing and Adjusting, "Control Valve (Travel)".

Reference: For more information on the saw pump, refer to Systems Operation/Testing and Adjusting, "Piston Pump (Saw)".

Reference: For more information on the hydraulic cooling fan, refer to Systems Operation/Testing and Adjusting, "Pilot Hydraulic System".