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FRF SERIES OFFSET FLAIL MOWER OPERATION & PARTS MANUAL Read and understand the manual. This manual provides information and procedures to August 2023 safely operate and maintain the FRF Series Offset Flail Mower.
START HERE Congratulations! You’ve just added an IronCraft attachment to your arsenal. If you have any questions about how to use your new offset flail mower - don’t hesitate to reach out to your local IronCraft dealer! Never carry out maintenance or cleaning work unless...
IMPORTANT SAFETY INFORMATION Do not allow anyone to operate this equipment who has not fully read and comprehended this manual and who has not been properly trained in the safe operation of the equipment. Thoroughly read and understand the instructions given in this manual before operation. Refer to the “Safety Decal”, read all instructions noted on them.
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BE AWARE OF SIGNAL WORDS A signal word designates a degree or level of hazard seriousness. The signal words are: DANGER Indicates an imminently hazardous situation which, if not avoids, will result in death or serious injury. This signal word is limited to the most extreme situations, typically for machine components that, for functional purpose, cannot be guarded.
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TRANSPORT MACHINERY SAFELY • Comply with state and local laws. • Maximum transport speed for implement is 20 mph. Do not exceed. Never travel at a speed which does not allow adequate control of steering and stopping. Some rough terrain require a slower speed.
Read and follow their directions. Keep all safety labels clean and legible. Replace all damaged or missing labels. To order new labels go to your nearest Ironcraft dealer or visit our dealer locator at IroncraftUSA.com. Some new equipment installed during repair requires safety labels to be affixed to the replaced component as specified by Cosmo.
INTRODUCTION IronCraft welcomes you to the growing family of new product owners. This implement has been designed with care and built by skilled workers using quality materials. Proper assembly, maintenance, and safe operating practices will help you get years of satisfactory use from the machine.
SECTION 1: ASSEMBLY AND SET-UP TRACTOR REQUIREMENTS This mower is designed with a 3-Point category I hitch. Tractor horse power rating should not exceed 80 PTO horse power. ASSEMBLY Refer to the parts illustration. TRACTOR HOOK-UP • Be certain that tractor draw bar will not interfere. Move draw bar ahead or remove if required.
SECTION 2: OPERATING INSTRUCTIONS TRANSPORTING NOTE: Always disengage PTO before raising mower to transport position. • When raising the mower to transport position, be sure that driveline does not contact tractor or mower. Adjust and set the tractor’s 3-point hitch lift height so that the driveline does not contact mower deck in the fully raised position.
start blades rotating. • Operate with 540 rpm PTO tractor. • At first begin mowing at a slow forward speed and shift up until the desired speed is achieved - maintaining 540 PTO rpm. • Mower knives will cut better at a faster blade speed than at reduced throttle. •...
BELT TENSION CAUTION Belt drive system under spring tension; use care to avoid bodily harm! The Belt tension should be checked after the first 20 hours of use. And then every 40 hours of use. • Tension on the belt can be adjusted with the belt tension bolt. Turn the bolt until desired tension is achieved.
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KNIFE REPLACEMENT IMPORTANT: Make sure that the knife is the same length as the others on the mower. This will keep the rotor rotation balanced. Remove bolt and nut. Remove old knife. Install new knife and existing bolt. Secure with nut. V-BELT INSTALLATION CAUTION Belt drive system under spring tension;...
Cutter Rotor Bearing (Both Ends) Type of Lubrication: Multi-purpose Grease Gearbox Type of Lubrication: SAE 90W Gear Lube Check oil level in gearbox by removing the plug located on the right hand side. Oil should be level with bottom of plug hole. Add oil if necessary by removing top fill plug and side plug.
SECTION 6: TROUBLESHOOTING CAUTION Do not try to clean rear discharge area when mower is running. Bodily harm may occur! PROBLEM SOLUTION Unplug and clean mower deck. Belt slipping Remove belt guard shields and clean sheaves. Replace belt. Mow at full throttle (540 PTO rpm), check PTO speed and tractor engine. Shift transmission to a lower gear.
SECTION 7: APPENDIX BOLT TORQUE The tables shown below give correct torque values for various bolts and cap screws. Tighten all bolts to the torques specified unless otherwise noted. Check tightness of bolts periodically, using bolt torque chart as a guide. Replace hardware with the same trength bolt. ENGLISH TORQUE SPECIFICATIONS Bolt torque Bolt Diameter...
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(12) month warranty period. All defective parts will be routed at IronCraft’s discretion with freight or delivery charges to be prepaid. This Limited Warranty shall not be interpreted to render IronCraft liable for any injury or damage to persons, business or property of any kind nor expenses or losses incurred for labor, supplies, substitute machinery rental, or for any other reason.
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