The TMG-TFM60/68/72 is a tractor flail mower designed for agricultural and landscaping applications, specifically for Category 1 three-point hitch or Quick-Hitch System mounting. These fixed bar flail mowers are ideal for ripping, leveling, finish grading, and backfilling tasks at feedlots, outdoor arenas, building sites, and for maintenance operations on farm and ranch lanes or roadways.
Function Description:
The flail mower operates by using a rotor equipped with multiple flail hammers that rotate at high speed, effectively cutting and mulching grass, weeds, and light brush. The cutting height is adjustable via the rear roller, allowing for various mowing requirements. It is powered by a tractor's PTO (Power Take-Off) shaft, transferring power through a driveline to a gearbox and then to the rotor via a belt drive system.
Important Technical Specifications:
The TMG-TFM series includes three models: TMG-TFM60, TMG-TFM68, and TMG-TFM72, each with varying cutting widths and blade numbers.
- TMG-TFM60:
- Cutting Width: 1550mm
- Blade Number: 24 flail hammers
- Product Weight: 270kg
- TMG-TFM68:
- Cutting Width: 1750mm
- Blade Number: 28 flail hammers
- Product Weight: 290kg
- TMG-TFM72:
- Cutting Width: 1850mm
- Blade Number: 32 flail hammers
- Product Weight: 310kg
All models share common specifications:
- PTO Turning Speed: 540 r/min
- Power Required: 30-60 hp
- Tractor horsepower rating should not exceed 50 PTO horsepower.
Usage Features:
- Hitch System: Designed for Category 1 three-point hitch or Quick-Hitch System mounting, ensuring compatibility with a wide range of tractors.
- Adjustable Cutting Height: The cutting height is adjusted by repositioning the rear roller. This allows operators to achieve desired grass lengths or to handle extremely tall grass by mowing in two passes.
- Flotation Design: The 3-point hitch system is designed for front-to-back flotation when mowing on uneven terrain, allowing the mower to follow ground contours.
- Operating Speed: Mower knives cut better at a faster blade speed. Operators should start at a slow forward speed and increase until the desired speed is achieved while maintaining 540 PTO rpm.
- Safety Features: The manual emphasizes the importance of safety labels, wearing protective equipment, ensuring all guards and shields are in place, and proper shutdown procedures. It also warns against operating the PTO with the mower fully raised or at full throttle.
- Transportability: The mower can be raised to a transport position, but operators must ensure the driveline does not contact the tractor or mower and reduce ground speed when turning or traveling over rough terrain. Accessory lights are recommended for public road transport.
Maintenance Features:
- Regular Inspections: Key to longevity, including checking oil levels in the gearbox, ensuring all plugs are tightened, verifying the tightness of mower knives, bolts, and nuts, and confirming guards and shields are secure.
- Lubrication Schedule:
- Driveline Shaft U-Joints, Roller Bearing (Both Ends), Cutter Rotor Bearing (Both Ends), Driveline Profiles: Require multi-purpose grease every 25 hours (Driveline Profiles every 20 hours).
- Gearbox: Requires SAE 90W Gear Lube as required. Oil level should be checked by removing the plug on the right-hand side; oil should be level with the bottom of the plug hole.
- Belt Tension Adjustment: The belt tension should be checked after the first 20 hours of use and then every 40 hours. Adjustment is made via a belt tension bolt, ensuring the gearbox extension runs straight (parallel) with the flail mower.
- Knife Replacement: Knives should be replaced when worn. It is crucial to use knives of the same length to maintain rotor balance.
- Storage: For long periods of inactivity, the mower should be cleaned, inspected for worn or damaged parts, repainted if necessary, and stored indoors.
- Troubleshooting Guide: The manual includes a troubleshooting section to address common issues such as belt slipping, uncut grass patches, excessive vibration, gearbox noise, knives scalping grass, uneven cut, and tractor overload.
- Bolt Torque Specifications: Detailed English and Metric bolt torque specifications are provided to ensure proper assembly and maintenance, emphasizing that these values are for non-greased or non-oiled threads unless otherwise specified.
- Part Breakdown List: Comprehensive diagrams and tables are included for all models (TMG-TFM60, TMG-TFM68, TMG-TFM72) detailing individual parts, reference numbers, descriptions, and quantities, which is essential for ordering replacement parts.