Miller service manual 48049031 is the factory shop book for the Condor GC260 and GC300 Tier 4B rear boom sprayers, and it also covers the GC300C combo. It runs long because every system has its own section, from Cummins engine removal and SCR exhaust to the foam marker.
Nothing burns a spray day like losing pressure just as the wind finally lays down. The book has the hydraulic pressure settings for both models, hydraulic schematics, electrical schematic sheets 01-22 with connector diagrams, the Cummins fault code table and the flow meter recalibration steps.
Print the sections you need and take them to the bench.
What's Inside This Miller Condor GC260, Condor GC300 Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction, Safety and Capacities | 1-31 | Safety Rules, Minimum Tightening Torques, Hydraulic Torque Data, Special Tools, Tire and Rim Repair, Capacities, Product Identification |
| Engine Removal and Mounts | 32-57 | Engine Remove and Install, Engine Support and Mounts |
| Air Cleaner and Fuel System | 58-89 | Air Cleaner, Fuel-Water Separator Filter, Lift Pump, Fuel Tank |
| Engine Cooling System and Fan | 90-125 | Cooling Package, Radiator, Charge Air Cooler, Hydraulic Oil Cooler, Expansion and Deaeration Tanks, Fan, Serpentine Belt |
| SCR Exhaust Treatment | 126-153 | DOC, DEF Dosing and Supply Modules, DEF Tank and Level Lamps, SCR Muffler and Catalyst |
| Transmission and Drive Shaft | 154-185 | Allison RDS2500 and RDS3000, Ground Drive, Fluid Checks and Change Intervals, Transmission Removal, Drive Shaft |
| Front Axle and Front Wheel Assist | 186-257 | FWA Overview, Troubleshooting and Fault Codes, FWA Electrical and Hydraulic Schema, MS11 Wheel Motor, Front Axle, Suspension |
| Powered Rear Axle and Drop Box | 258-303 | Transfer Gearbox, Rear Axle, Air Bag Suspension, Sway Bar, Torque Arm, Leakage and Roll Tests |
| Differential and Planetary Final Drive | 304-409 | Axle Tech and JCB Differentials, Shims and Special Tools, Pinion Seal, Planetary Final Drive, Half Shaft Bearing Carrier |
| Brakes | 410-437 | Brake Pedal Control Valve, Counterbalance Valve, Brake Accumulator Charging, Bleeding, Calipers, Parking Brake |
| Hydraulic System and Hydraulic Schematics | 438-471 | GC260 and GC300 Pressure Settings, Rear Boom Hydraulic System, Cleanliness, Hydraulic Schema Frames, Pressure Tests, Wheel Motor Startup |
| Auxiliary Pump, Reservoir and Main Control Valve | 472-499 | Auxiliary Pump, Pump Pressure Settings, Hydraulic Tank Vacuum, Reservoir, Integrated Valve Block, Check Valve |
| Pneumatic System | 500-517 | Air Compressor, Air Tank, Air Governor Adjustment |
| Towing and Ballasting | 518-535 | Vehicle Towing, Park Brake Release, Lift Accumulator Charging, Air Bag Height |
| Steering and Wheels | 536-575 | Power Steering Valve and Pressure Setting, Steering Pump, Steering Cylinder Rephasing, Front and Rear Wheels, Lug Nut Torque |
| Cab Climate Control | 576-661 | Heater Valve, Cab Filters, A/C Troubleshooting, A/C Electrical Schematics, A/C Charging, Compressor, Receiver-Dryer, Evaporator |
| Engine Control System and Fault Codes | 662-701 | Engine Control Unit, Cummins SPN and FMI Fault Code Table, Lamp Colors |
| Wiring Schematics and Connectors | 702-945 | Electrical Schematic Sheets 01-22, Harnesses, Connector Diagrams |
| HVAC Blowers, Starter, Alternator and Battery | 946-985 | Blower Motors, Starter, Alternator, Battery Removal |
| Sprayer Controls, Electrical System and Modules | 986-1039 | Spray Monitor Troubleshooting and Alarm Codes, Wiper, Power Distribution, Fuses and Relays, Onboard Diagnostics, CAN Bus |
| Spraying System | 1040-1075 | Spray Troubleshooting, Product Tank, Flow Meter Maintenance and Recalibration, Rinse Tank, Foam Marker |
| Accessories, Platform and Cab | 1076-1153 | Tool Box, Hood, Fenders, Ladder, Handrails, Operator Seat, Cab Roof, Console and Headliner |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine | Cummins QSB and QSL engines | p. 666 |
| Engine oil | NEW HOLLAND AMBRA MASTERGOLD ENGINE OIL CJ-4 SAE 10W-30; capacity: refer to Cummins manual | p. 25 |
| Coolant | NEW HOLLAND AMBRA ACTIFULL OT EXTENDED LIFE COOLANT | p. 25 |
| Transmission, GC260R | Allison RDS2500, six speed (five utilized) | p. 159 |
| Transmission, GC300R and GC300C | Allison RDS3000, six speed | p. 159 |
| Transmission normal operating sump temperature | 71 - 93 °C (160 - 200 °F) | p. 164 |
| ITL differential oil | BENZ THL-303 Hydraulic Oil or MOBIL 424, approximately 11.4 l (3 US gal) | p. 25 |
| Axle Tech limited slip differential oil | API GI-5 75W90 SYNTHETIC gear lube, approximately 7.6 l (2 US gal), plus 237 ml (8 US fl oz) limited slip additive | p. 25 |
| Drop box oil | API GL-5 85W140 gear lube, approximately 26.5 l (7 US gal) each | p. 25 |
| Planetary wheel hub oil | API GL-5 85W140 gear lube, approximately 7.6 l (2 US gal) each | p. 25 |
| A/C refrigerant | HFC-134A, 2.8 kg (6.2 lb) | p. 25 |
| Steering relief pressure (min / nom / max) | 2100 psi / 2150 psi / 2200 psi | p. 442 |
| Power steering valve setting | 148 bar (2150 psi) | p. 543 |
| Auxiliary pump pressure (min / nom / max) | 2450 psi / 2500 psi / 2550 psi | p. 442 |
| Auxiliary pump pressure, GC300 with 120 ft air boom | 2700 psi / 2750 psi / 2800 psi | p. 442 |
| Diff lock pressure setting | 350 psi / 360 psi / 370 psi | p. 442 |
| Park brake pressure setting | 1500 psi / 1500 psi / 1600 psi | p. 442 |
| Brake accumulator | 1450 psi / 1500 psi / 1550 psi | p. 442 |
| Air pressure | 110 psi / 115 psi / 120 psi | p. 442 |
| Front wheel lug nut torque | 495 N·m (365 lb ft) | p. 566 |
| Rear wheel lug nut torque, planetary drive | 434 N·m (320 lb ft) | p. 572 |
| Rear wheel lug nut torque, drop box drive | 495 N·m (365 lb ft) | p. 572 |
| Rear wheel lug nut torque, drop box with dual wheels | 569 N·m (420 lb ft) | p. 572 |
| Batteries | Two, 12 V at 925 cold cranking amps | p. 1010 |
| Foam marker relief valve | Factory set at 138 kPa (20 psi) | p. 1071 |
