Part of the New Holland Repair Manuals.
A round baler that quits mid-windrow never checks the forecast first, so the 358 pages of this New Holland 544, 548 repair manual PDF (OEM 604.66.111.00) are built for one outcome: getting either baler stripped, repaired, and wrapping again before the weather turns. Wiring diagrams for the Bale Command Plus system, the CropCutter circuit included, back up sensor calibration routines, harness connector repair, and troubleshooting charts that trace an electrical fault to the sensor or actuator causing it. Teardown procedures run from the PTO cut-out clutch and Comer gearbox through pick-up reel and cam track rebuilds to the twine and net wrap drives. Set the knife break-away spring at 415 mm, and when you refit the gearbox, pull the mounting bolts to 240 Nm. One invented torque figure can crack a housing. Bookmarked and text-searchable, the PDF lands you in the wiring section in two clicks, and your baler back in the field the same afternoon.
What's Inside This New Holland 544, 548 Repair Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-32 | Introduction, Important Information, Spare Parts, Safety Regulations, Product Identification |
| Implement Power Take-Off Driveline | 33-62 | P.T.O Clutch (Cut Out Clutch, Clutch Removal, Clutch Assembly) |
| Hydraulic Systems | 63-78 | Hydraulics (Pick-Up Lift Cylinder, Cylinder Seal Kit Replacement, Lock-Out Valve Replacement, Tailgate Lift Cylinders, Checking Cylinder Characteristics, Density Cylinders, Checking the Oil and Accumulator Pressure, Accumulator Filling, Cylinder Filling, Automatic Oiler, Greasing Lines and Metering Units) |
| Wheels and Tyres | 79-80 | General (Tyre Specifications, Axle Components) |
| Electrical System | 81-142 | Electrics (Bale Command Plus Monitors, Set-Up and Diagnostics, Bale Density Sensors Mounting, Diagnostics, Calibration, Duckbill/Knife Actuator Sensor, Sensor and Actuator Disassembly/Assembly, Twine Actuator Sensor, CropCutter Actuator Sensor, Tailgate Switches, Net Metering Roll Sensor, Bale Shape Sensitivity, Software Revision Number, Operator Panel Test, Keypad Check, Supply Voltage Check, Twine Wrap, Wiring Diagram, CropCutter Wiring Diagram, Serviceable Operator Panel Components, Serviceable Controller Components, Harness Connector Repair, Troubleshooting, Twine/Net Actuator Test Procedure, Dealer Pre Delivery Set-Up) |
| Product Feeding | 143-238 | Pick Up (Standard Pick-Up, Removal and Installation, Installation, Cam Track Replacement, Assembly, Pick-Up Reel, Reel Drive, Cam Track Disassembly, Cam Track Assembly, Cam Track Roll Disassembly and Assembly, Pick-Up Tine Replacement) |
| Ancilliary Equipment | 239-358 | Twine Wrap Kit, Overrun Clutch, Duck Bill Baffle, Tailgate Narrowing Plate, Plastic Film Knife |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 544 | ||
| Apron conveyor chain length | 6706 mm | p. 27 |
| Cut-out clutch torque (Model 544) | 1300 Nm | p. 16 |
| All Models | ||
| gearbox mounting bolts torque | 240 Nm | p. 43 |
| Distance between lock nut and bottom end of knife breakaway link slot | 2 mm | p. 110 |
| Cam follower bearing nut torque | 72 Nm | p. 144 |
| knife break-away spring length | 415 mm | p. 175 |
| Gearbox oil capacity (general Lubricants table, Specifications table gives approx. 1.70 L on p. 30) | 1 litre | p. 22 |
| Automatic lubrication system capacity | 3 litres | p. 22 |
| Bale chamber width | 120 cm | p. 24 |
| Bale chamber diameter | 120 cm | p. 24 |
| Maximum bale weight | 800 kg | p. 24 |
| 548 | ||
| Cut-out clutch torque (Model 548) | 1500 Nm | p. 17 |
