Production | |
| Manufacturer: | Challenger (a part of AGCO) |
| Type: | Row-Crop tractor |
| Factory: | Beauvais, France |
| The Challenger MT535B is similar to the Massey Ferguson 7475. | |
Challenger MT535B Power | |
| Engine: | 133 hp 99.2 kW |
| PTO (claimed): | 105 hp 78.3 kW |
| Drawbar (tested): | 103.8 hp 77.4 kW |
| PTO (tested): | 118.1 hp 88.1 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| 4x4 MFWD 4WD | |
| Final drives: | inboard planetary |
| Differential lock: | electro-hydraulic front and rear |
| Steering: | power |
| Brakes: | hydraulic wet disc |
| Trailer brakes: | hydraulic optional |
| Cab: | Cab standard with heat and A/C. Optional pneumatic cab suspension and automatic climate control. |
| Transmissions: | 32-speed partial power shift |
| 24-speed partial power shift | |
| continuously variable transmission | |
Capacity | |
| Fuel: | 71 gal 268.7 L |
| Hydraulic system: | 18.5 gal 70.0 L (AutoPower) |
| 26.4 gal 99.9 L (CVT) | |
Hydraulics | |
| Type: | closed center pressure flow compensating (PFC) |
| Capacity: | 18.5 gal 70.0 L (AutoPower) |
| 26.4 gal 99.9 L (CVT) | |
| Pressure: | 2900 psi 200.0 bar |
| Rear valves: | 2 to 4 |
| Total flow: | 29 gpm 109.8 lpm |
Tractor hitch | |
| Rear Type: | II/III |
| Rear lift (at 24"/610mm): | 9,391 lbs 4259 kg |
| 11,200 lbs 5080 kg (CVT) | |
| Front Hitch: | optional |
| Front lift: | 5,500 lbs 2494 kg |
Power Take-off (PTO) | |
| Rear PTO: | independent |
| Clutch: | electro-hydraulic wet disc |
| Rear RPM: | 540/1000 (1.375) |
| 540/540E/1000*Optional | |
| Engine RPM: | 540@1980 540E@1533 1000@2000 1000E@1548 |
MT535B Serial Numbers | |
| 2004: | N00001 |
| 2005: | P00001 |
| 2006: | R00001 |
| 2007: | S00001 |
Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 120 |
| Batteries: | 2 |
| Battery CCA: | 420 |
| Battery volts: | 12 |
Engine Detail | |
| Caterpillar 3056C | |
| turbocharged diesel | |
| 6-cylinder | |
| liquid-cooled vertical inline | |
| Displacement: | 365.2 ci 6.0 L |
| Bore/Stroke: | 3.937x5.00 inches 100 x 127 mm |
| Emissions: | Tier II |
| Power: | 133 hp 99.2 kW |
| Fuel system: | electronic direct injection |
| Cooling system: | viscous fan |
| Air cleaner: | dual paper elements |
| Compression: | 17.5:1 |
| Rated RPM: | 2200 |
| Idle RPM: | 800-2350 |
| Starter volts: | 12 |
| Coolant capacity: | 26.92 qts 25.5 L |
Dimensions | |
| Wheelbase: | 112.1 inches 284 cm |
| Length: | 168.5 inches 427 cm |
| Width: | 81.1 inches 205 cm |
| Height (cab): | 112.8 inches 286 cm |
| Clearance (drawbar): | 15.4 inches 39 cm |
| Rear axle: | Flange |
| Rear axle: | Bar: 3.2 by 82 inches 81 by 2082 mm |
| Rear axle: | Bar: 3.2 by 113 inches 81 by 2870 mm |
| 2WD Front tread: | 64.1 to 83 inches 162 to 210 cm |
| 2WD Front tread: | 73.2 to 96 inches 185 to 243 cm (wide row-crop axle) |
| 4WD Front tread: | 61.7 to 80.8 inches 156 to 205 cm |
| Rear tread: | 60 to 88 inches 152 to 223 cm |
Maintaining agricultural machinery is crucial for smooth farming operations, and when issues arise, it's essential to identify and resolve them promptly. In this article, we'll delve into the troubleshooting process for front work lights on a Challenger MT535B tractor, as discussed in a forum thread.
The Problem
The user reported that the front corner work lights on one of their Challenger MT535B tractors were not functioning correctly. They had previously attempted troubleshooting, including replacing the light switch, but the issue persisted. When the switch was pressed, they heard a click and a relay click, but neither the LED indicator nor the lights themselves came on.
Additional observations included a terminal on the fuse panel that did not appear to be positive or ground and the presence of power at the fuse that controlled the lights on the user's other tractor.
Discussion and Resolution:
Light Switch Replacement: Initially, the user replaced the light switch located on the cab side post, but this did not resolve the problem. The issue was determined to be unrelated to the switch itself.
Fuse Inspection: The user inspected the fuse panel and found a missing fuse labeled "Fuse 10," which was crucial for controlling the lights. This was likely the cause of the problem. It was noted that the user may have mistaken another fuse for controlling the lights, which led to initial confusion.
Wiring Differences: A user in the forum thread suggested that the tractor might have a wiring difference between the U.S. and European versions. The European version apparently came from the factory with the front work lights wired, while the U.S. version did not. The solution suggested was to run a new wire to resolve the issue.
PTO Issue: The thread also briefly discussed another problem related to the tractor's PTO (Power Take-Off). In this case, the PTO engagement was sometimes delayed, requiring the user to hold the PTO button for an extended period to activate it. Possible causes mentioned included a faulty PTO control module, ground issues, or calibration problems.
Conclusion
Troubleshooting electrical issues in tractors can be challenging but is essential for maintaining farm equipment's functionality. In this case, a missing fuse was identified as the primary culprit for the non-functional front work lights, while a separate issue related to the PTO engagement was briefly discussed. When facing similar problems, it's crucial to methodically inspect fuses, switches, wiring, and consult user manuals or seek advice from experts or forums to diagnose and resolve the issue efficiently. Regular maintenance and prompt problem-solving are key to ensuring a productive farming operation.