TLD GPU-4060 Series Operation & Maintenance Manual Download Page 1

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Operation & Maintenance Manual

for

GPU-4060-T-CUP

(& GPU-4060-T-CUP-28)

Ground Power Unit

Summary of Contents for GPU-4060 Series

Page 1: ...Operation Maintenance Manual for GPU 4060 T CUP GPU 4060 T CUP 28 Ground Power Unit...

Page 2: ...CHAPTER 1 INFORMATION OPERATION Ground Power Unit GPU 4060 CUP Version 200903...

Page 3: ...B Installing Output Cables 2 2 Unit Operation 3 A Prestart Inspection 3 B Engine Starting Procedures 3 C Starting Engine in Cold Weather 3 D Delivering Power to the Aircraft 3 E Removing Power from th...

Page 4: ...orsion axle mounted chassis of rugged galvanized steel construction with fifth wheel steering and powder coated sheet metal panels The unit meets U S and EURO emission standards Tier3 and Com 3 Option...

Page 5: ...ription 1 Air filter 6 Generator 2 Exhaust silencer 7 Radiator 3 Instrument panel 8 Charge air cooler 4 Engine 9 Electrical Box 5 Fuel Tank GPU 4060 SERIES GROUND POWER UNIT CUMMINS ENGINE CONFIGURATI...

Page 6: ...ation through the diagnostic connector The ECM microprocessor is an interface device connected between engine sensors unit controls and indicators On the unit side primary components are the battery p...

Page 7: ...rod to the stop position and initiates a fault indication condition d Engine Protection Sensors The ECM records and displays engine fault conditions The ECM continuously monitors input data received...

Page 8: ...bridge assembly are sleeve mounted on the shaft of the synchronous generator The rotating rectifier assembly consists of a full wave rectifier bridge made up of six semiconductor devices mounted on a...

Page 9: ...en cover 11 Bearing 4 Adapter 12 Exciter armature 5 Fan assembly 13 Rotating rectifier assembly 6 Aluminum baffle 14 Ring Resistor 7 Generator frame and stator assembly 15 Exciter cover 8 Generator ro...

Page 10: ...he unit and houses the instrument panel and the relay panel It also provides a place for the engine s electronic control module ECM to mount to This is located on the outside of the electrical box bac...

Page 11: ...ngine and generator control and protection relays 3 current transformers and output load contactor s 1 Current Transformers T4 T5 T6 5 Output Test Bank Switch S11 2 Contactor K10 6 Frequency Simulator...

Page 12: ...r to an aircraft not equipped with 28 VDC feedback 5 Starter Lockout Relay K8 The function of the starter lockout relay is to not allow the engine s starter motor to crank when it is already running 6...

Page 13: ...s output frequency is also increased and visa versa This switch is used to ensure the generator control module GCM causes the output contactor s to open anytime the frequency goes over 420 Hz or fall...

Page 14: ...which the generator is regulated may be adjusted with the voltage regulator Refer to the Manufacturer s Literature in Chapter 5 for more detailed information on the generator control module The Genera...

Page 15: ...eed 1 at balanced 3 phase load Not to exceed 4 at 1 3 load on 1 phase and no load on the other 2 phases Harmonic content Total harmonic distortion not to exceed 2 Any single phase harmonic not to exce...

Page 16: ...n Switch S3 19 Generator Control Module Scroll Left Button 6 Emergency Stop Switch S2 20 Generator Control Module Scroll Right Button 7 1 Output Light DS10 21 Generator Control Module Scroll Down Butt...

Page 17: ...witch When held in the momentary CLOSE position it provides 400 Hz power directly to a rectifier bridge which supplies DC power to the respective contactor coils for closing the output contactors When...

Page 18: ...to service 13 Engine Maintenance Light Cummins Only The engine maintenance light signals to the operator that the engine is due for routine maintenance 14 Engine Intake Heater Light When the ignition...

Page 19: ...ower is supplied to the aircraft the aircraft returns a voltage signal to the GPU through the E F pins of the output cable and terminal block This return signal is used to energize either of the inter...

Page 20: ...e at or near full b Engine coolant Coolant level should be approximately one inch below the radiator filler neck The expansion tank should be approximately half full c Engine Lubricating Oil The oil l...

Page 21: ...left rear of the electrical box a Loosen the cable clamp and connect the loose ends of the cable assembly to the output terminal b Each terminal stud is identified by a nameplate Each cable should be...

Page 22: ...gine to operating speed abd to build up generator voltage C Starting Engine in Cold Weather This engine is equipped with an automatic intake manifold heater Pre heating to the heater takes place autom...

Page 23: ...proper location F Shutting Down the Engine 1 Turn the ignition switch to OFF position The engine will ramp down to idle and remain in idle for approximately one 1 minute to cool down It will then shut...

Page 24: ...rated load for 5 minutes It s 3 phase 4 wire wye connected grounded neutral It s brushless self cooling single bearing generator directly coupled to the engine Refer to the chart above for power and c...

Page 25: ...ectronic gages via SAE J1939 Controller Area Network which include Engine Hours Engine RPM System Voltage Oil Pressure Coolant Temperature Engine Load at the current RPM Active and stored Service Code...

Page 26: ...e lift The bottom of the unit is flat across the bottom of the cable tray and fuel tank and no blocking or spacers are required CAUTION DO NOT SHIP THE UNIT BY RAIL DAMAGE MAY OCCUR DUE TO HIGH AND UN...

Page 27: ...esiccant to absorb condensation Cover the air screens on the generator with tape to prevent the access of freign material 2 Removing the Unit From Storage A Check and replenish the level of engine coo...