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LOFTNESS 72HM Owner's Manual And Parts Book

Hydraulic flail mower
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Hydraulic Flail Mower
72HM
90HM
•
Owner's Manual and Parts Book
(Originating w/Serial Number 115-101)
Model Number:
Serial Number:
Date of Purchase:
214600 Rev. A
02.24.25

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Summary of Contents for LOFTNESS 72HM

  • Page 1 Hydraulic Flail Mower 72HM 90HM • Owner’s Manual and Parts Book (Originating w/Serial Number 115-101) Model Number: Serial Number: Date of Purchase: 214600 Rev. A 02.24.25...

  • Page 3: Limited Warranty Policy

    Extreme, Bad Ax Skid Steer, Timber Ax Skid Steer, Stump Ax, BT20, Kwik Cut. All other Loftness products have a one (1) year limited warranty. If any Loftness product is used as rental or leased equipment the limited warranty period is for only 30 days from the delivery date to the original customers.

  • Page 5: Pre-Delivery Inspection

    ____ Assisted customer with completing / submitting Warranty Registration Form to Loftness by one of the below options. Dealer also needs to submit a copy of this completed PDI to Loftness and maintain the copy in owner’s manual for unit.
  • Page 7 ____ Assisted customer with completing / submitting Warranty Registration Form to Loftness by one of the below options. Dealer also needs to submit a copy of this completed PDI to Loftness and maintain the copy in owner’s manual for unit.

  • Page 9: Table Of Contents

    Table of Contents Warranty Table of Contents Ordering Cod Ordering Code ..............1 Hydraulic Flail Mower (Example) .
  • Page 10 Table of Contents Maintenance General Maintenance ............21 Maintenance Schedule .

  • Page 11: Ordering Cod

    Ordering Code Ordering Code Hydraulic Flail Mower (Example) The ordering code will consist of two numbers (machine size), two letters (machine type), one letter (knife type), two numbers (motor system), one letter (sheave/belt combination), and one letter (options). An example of a Hydraulic Flail Mower of this type would be as shown below.
  • Page 12 Hydraulic Flail Mower OM...

  • Page 13: Introduction

    Continuous improvement and advancement of Loftness products may result in changes to your equipment that may not be reflected in this publication. Loftness reserves the right to make product improvements to the machine at any time. Although great care has been taken...

  • Page 14: Owner's Manual Access

    QR Code (1) located on top of the unit. This code will link to the flail mower owner’s manual on the • Premium Strength Steel Housing Loftness website. • Full-Width Gauge Roller with Roller Scraper • 1-3/4" Rotor Bearings •...

  • Page 15: Safety Instructions

    Safety First Be certain all machine operators are aware of the dangers indicated by safety decals applied to the machine, and be certain they follow all safety decal Safety Alert Symbol instructions. Contact Loftness for safety decal replacement. This message alert...

  • Page 16: Mandatory Shut-Down Procedure

    Safety Instructions Mandatory Shut-Down Procedure • Keep spectators and other workers away from the machine while it is operating or engine is running. Keep the area of operation clear of all unauthorized • Stop the machine and attachment on a level surface persons.

  • Page 17: Hydraulic Safety

    Safety Instructions Safety Rules (Cont’d) • Be sure the rotor has stopped completely before checking knives. • Reduce speed when turning. • Before working under any hydraulically controlled implement, be certain it is securely blocked! • Do not operate on extremely steep slopes. •...
  • Page 18 Hydraulic Flail Mower OM...

  • Page 19: Flail Mower Component Identification

    Safety Instructions Flail Mower Component Identification Hydraulic Flail Mower OM...

  • Page 20: Safety Decal Locations

    Safety Instructions Safety Decal Locations Check and replace any worn, torn, hard to read or missing safety decals on your machine. NOTE: This section shows where safety-related decals are applied on the machine. For all machine decals see “Machine Decals and Signs” on page 52. See the following page for detailed images of the safety decals called out above.
  • Page 21 Safety Instructions Safety Decal Locations (Cont’d) Part No. N68724 Part No. N68716 Part No. 203264 Part No. 200491 WARNING SKIN PUNCTURE HAZARD. HYDRAULIC LINES. Protect hands and body from high pressure fluids. N23506 Part No. N23506 Part No. N17013 Part No. N20661 Part No.
  • Page 22 Hydraulic Flail Mower OM...

  • Page 23: Set-Up Instructions

    Set-up Instructions Attaching to Loader The Loftness Hydraulic Flail Mower can be attached to any skid loader with an auxiliary hydraulic system of 13-43 GPM, which has a standard universal skid loader hitch. Fully raise the attachment-locking levers on the loader mounting plate.

  • Page 24: Hydraulic Connections

    IMPORTANT: For loaders that have a hydraulic flow rate above 32 gallons per minute (GPM), the Loftness Flail Mower must be equipped with the 65cc motor with the case drain. If you have any questions regarding your flail mower’s motor or hydraulic system, please contact your Loftness dealer.

  • Page 25: Checking Rotor Speed

    Set-up Instructions Checking Rotor Speed Cutting Height Adjustment This procedure should be performed on a level surface DANGER: Shut down power from the loader with mower mounted on loader. before removing the bearing cover and applying reflective tape to rotor shaft end. The flail mower uses multiple adjustment holes on the Keep the flail mower skids on blocks for this rear roller and front flail wheels if equipped to allow a...

  • Page 26: Front Flail Wheel Adjustment

    Set-up Instructions Cutting Height Adjustment (Cont’d) Repeat the procedure on the opposite side of the mower. Raise or lower the rear roller assembly to realign the holes Rear Roller Adjustment (Cont’d) on the roller mount (4) to the desired cutting height. Make sure the hole alignment on each side of the flail mower corresponds with one another.
  • Page 27 Set-up Instructions Cutting Height Adjustment (Cont’d) Front Flail Wheel Adjustment (Cont’d) To add or move spacers located above the pivot bushing: Set the mower on the ground. The weight of the machine forces the spindles of the pivot wheels up, allowing the pins (1) to be easily removed.

  • Page 28: Checking Belt Tension

    Set-up Instructions Checking Belt Tension WARNING: Shut down and lock out power from the loader before checking the belt tension. Failure to do so could result in serious injury or death. The belt should move no more than 1/4 in. (6.35 mm) to the left, and no more than 1/4 in.

  • Page 29: Operating Instructions

    WARNING: Do not operate the attachment above the rated RPM. Check with your Loftness dealer to be sure your attachment is WARNING: Do not operate the mower above set-up with the correct belt assembly to the rated RPM.

  • Page 30: Clearing Jams

    Operating Instructions Clearing Jams Detaching the Flail Mower Lower the mower onto a dry level surface. WARNING: Do not attempt to dislodge jams by hand while the loader is running. Shut Disconnect hydraulic hoses. down and lock out power from the loader before attempting to remove debris by hand.

  • Page 31: Maintenance

    Maintenance General Maintenance Use a #2 general purpose lithium based grease unless noted otherwise. To ensure efficient operation, you should inspect, NOTE: Replace any broken or missing grease fittings. lubricate, and make necessary adjustments and repairs Be sure to clean fittings before greasing. at regular intervals.

  • Page 32: Overhung Load Adapter

    Maintenance Lubrication (Cont’d) Overhung Load Adapter Grease Points Location (Cont’d) Location: Roller bearings - left side (1), right side (2). Every 8 hours of operation. Interval: Remove the plug from the port (1) located on the top of the overhung load adapter. Place a container underneath the overhung load adapter to catch the oil, then remove the plug from the lower port (2) located on the bottom.

  • Page 33: Removing Belt Cover

    Maintenance Removing Belt Cover DANGER: Shut down and lock out power from the loader before removing the belt cover. Failure to do so could result in serious injury or death. To remove the belt cover (1), unscrew the ten bolts (2) and lift the cover off of the frame.

  • Page 34: Replacing Belt

    Maintenance Replacing Belt Remove the three bolts (1) from the bushing (2) of the sheave (3). To replace the belt, follow the procedures for “Belt Insert three screws into the threaded holes (4). Adjustment” preceding this subsection and decrease the Tighten the screws until bushing grip is released.

  • Page 35: Top Sheave (Taperlock Design)

    Maintenance Sheave Removal (Cont’d) Re-torque screws after hammering. 10. Recheck screw torque after initial run-in, and Top Sheave (Taperlock Design) periodically thereafter. 11. Check alignment of the sheaves. Repeat sheave removal and assembly procedures if necessary. Skid Removal/Replacement WARNING: Shut down and lock out power from the loader before removing skids.

  • Page 36: Knife Replacement

    Maintenance Knife Replacement Storage End of Season DANGER: Shut down and lock out power from the loader before removing and • Clean entire flail mower thoroughly. replacing knives. Failure to do so could result in serious injury or death. • Lubricate all parts of the machine.

  • Page 37: Motor & Sheave Selection Chart

    Maintenance Motor & Sheave Selection Chart Belt Sheave Assembly - Loftness Part Number Top Sheave (Loftness Number) Loftness Top Bushing (Loftness Number) Displacement Part Rotor RPM Bottom Sheave ( Loftness Number) Number Bottom Bushing ( Loftness Number) Belt Length (Loftness Number)

  • Page 38: Troubleshooting

    Maintenance Troubleshooting PROBLEM CAUSE SOLUTION Excessive Vibration Broken or missing knife. Replace knife. Mud and/or debris wrapped around Clean the machine. the rotor. Bearing malfunction. Check and replace faulty rotor and drive line bearings. Damage to rotor, includes bent end Return to factory for repair.

  • Page 39: Parts Identification

    Parts Identification PARTS IDENTIFICATION Hydraulic Flail Mower OM...

  • Page 40: Covers, Skids, And Flippers

    Parts Identification Covers, Skids, and Flippers Hydraulic Flail Mower OM...
  • Page 41 Parts Identification Covers, Skids, and Flippers QTY. PART # DESCRIPTION 4012 BOLT, 1/2" X 1-1/4" GRADE 5 N37780 WASHER, NORD-LOCK 1/2" SP 4039 BOLT, CARRIAGE 1/2" X 1-1/2" 4250 NUT, STANDARD 1/2 N16472 WASHER, 1/2 NORDLOCK 211097 SKID. RIGHT 211007 COVER, BEARING N26748 BOLT, 1/2"...

  • Page 42: Rotor, Rotor Lubrication, And Belt Adjustment Hardware

    Parts Identification Rotor, Rotor Lubrication, and Belt Adjustment Hardware * For parts breakdown of item 1 - Rotor with Duckfoot Knives ( 72" - 214095) ( 90" - 208661), see page 35. ** For parts breakdown of item 2 - Rotor with Flail Knives (72" - 214103) (90" - 208662), see page 34. Hydraulic Flail Mower OM...
  • Page 43 Parts Identification Rotor, Rotor Lubrication, and Belt Adjustment Hardware QTY. PART # DESCRIPTION 214095 ROTOR, 72" DUCKFOOT 208661 ROTOR, 90" Duckfoot 214103 ROTOR, 72" FLAIL 208662 ROTOR, 90" FLAIL 208605 PLATE, 90" FLAIL ANTIWRAP N30233 BEARING, 1-3/4" DODGE 4-BLT FL 4245 BOLT, 1/2"...

  • Page 44: Rotor, With Flail Knives (72" - 214103) (90" - 208662)

    Rotor, with Flail Knives (72" - 214103) (90" - 208662) QTY. PART # DESCRIPTION 214096 ROTOR (without knives), FLAIL 72" 208583 ROTOR (without knives), FLAIL 90" 208659 KIT, FLAIL 208659 KIT, FLAIL 8600 KNIFE, 60 DEG.HEAVY DUTY FLAIL 208601 D-RING, FLAIL 7/16 208591 U-BAR, 1.25 X 2.25 4435...

  • Page 45: Rotor, With Duckfoot Knives (72" - 214095) (90" - 208661)

    Rotor, with Duckfoot Knives (72" - 214095) (90" - 208661) QTY. PART # DESCRIPTION 214096 ROTOR (without knives), FLAIL 72" 208583 ROTOR (without knives), FLAIL 90" 208619 KIT, DUCKFOOT 208619 KIT, DUCKFOOT 208622 BLADE, DUCKFOOT 208601 D-RING, FLAIL 7/16 208591 U-BAR, 1.25 X 2.25 4435 BOLT, 1/2"...

  • Page 46: Hitch, Bolt-On

    Parts Identification Hitch, Bolt-On QTY. PART # DESCRIPTION 4341 NUT, 3/4" FINE THREAD GRADE 8 N16474 WASHER, 3/4 NORDLOCK N16753 BOLT, 3/4" X 1-3/4" FN THD GR 8 208674 HITCH, BOLT-ON Hydraulic Flail Mower OM...

  • Page 47: Hitch, Floating (211048)

    Parts Identification Hitch, Floating (211048) QTY. PART # DESCRIPTION 214104 CLEVIS, DOUBLE 3/8 214078 CHAIN, LONG LINK 7 211050 HITCH, FLOATING 4313 BOLT, 3/8" X 2-1/2" GRADE 5 211063 WASHER, UHMW 4052 NUT, LOCK 3/8" 211060 PIN, HITCH 211049 HITCH, FLOATING N16753 BOLT, 3/4"...

  • Page 48: Wheel, Front Flail (208700)

    Parts Identification Wheel, Front Flail (208700) QTY. PART # DESCRIPTION 206498 PIN, LINCH 7/16 X 1-3/4 211015 SPACER, WHEEL 4105 GREASE-ZERK, 1/4" SCREW-IN 208974 SPACER, WHEEL 208702 PIVOT, WHEEL 4059 NUT, 1" STANDARD 203587 WASHER, NORD-LOCK 1 211075 TIRE, LAMINATED W/HUB N16413 BOLT, 1"-8UNC X 7-1/2"...

  • Page 49: Roller Assembly (72" - 214091) (90" - 208613)

    Parts Identification Roller Assembly (72" - 214091) (90" - 208613) QTY. PART # DESCRIPTION N12137 PROTECTOR, 1-1/2" BEARING 4250 NUT, STANDARD 1/2 N16472 WASHER, 1/2 NORDLOCK N30230 BEARING, 1-1/2" DODGE 2BLT FLG 4013 BOLT, 1/2" X 1-1/2" GRADE 5 208692 MOUNT, ROLLER BEARING 211087 WASHER, 1/2 3/16 THK AR...

  • Page 50: Motor Assembly, #62 65Cc With Check, Case Drain (208599)

    Parts Identification Motor Assembly, #62 65cc with Check, Case Drain (208599) * For parts breakdown of item 6, Overhung Load Adapter (205079), see page 44. ** For partial parts breakdown of item 10, Motor (208496), see page 45. Hydraulic Flail Mower OM...
  • Page 51 Parts Identification Motor Assembly, #62 65cc with Check, Case Drain (208599) QTY. PART # DESCRIPTION N31536 BOLT, 1/2 X 1-3/4 12 PT GRD8 N16472 WASHER, 1/2 NORDLOCK 208607 MOUNT, MOTOR N28567 WASHER, 3/4 NORDLOCK SP 202814 BOLT, 3/4IN X 1-1/2IN GR 8 205079 ADAPTER, OVERHUNG LOAD MOTOR #2 214428...

  • Page 52: Motor Assembly, #61 65Cc With Check And High Pressure Seal (Without Case Drain) - (211088)

    Parts Identification Motor Assembly, #61 65cc with Check and High Pressure Seal (without Case Drain) - (211088) * For partial parts breakdown of item 11, Motor (214668), see page 46. Hydraulic Flail Mower OM...
  • Page 53 Parts Identification Motor Assembly, #61 65cc with Check and High Pressure Seal (without Case Drain) - (211088) QTY. PART # DESCRIPTION 211092 BOLT, 1/2 X 2-1/2 GR 8 12 PT N16472 WASHER, 1/2 NORDLOCK 211089 MOUNT, MOTOR N28567 WASHER, 3/4 NORDLOCK SP 202814 BOLT, 3/4IN X 1-1/2IN GR 8 N10533...

  • Page 54: Overhung Load Adapter (205079)

    Parts Identification Overhung Load Adapter (205079) QTY. PART # DESCRIPTION N14151 SEAL, FRONT (1.50" I.D. X 2.13" O.D. X .312" THK) N14152 CUP, BEARING N14153 CONE, BEARING N14156 RING, RETAINING N14157 SEAL, REAR (55MM X 90MM X 10MM) N14158 GASKET Hydraulic Flail Mower OM...

  • Page 55: Motor, 65Cc With 280 Bar Relief (208496)

    Parts Identification Motor, 65cc with 280 Bar Relief (208496) NOTE: Seal kit available (not shown). See parts list for part number. QTY. PART # DESCRIPTION 208390 KIT, 640 MOTOR 300 PSI 208393 RELIEF, CHECK VALVE 208389 RING, RETAINER 208388 SEAL, SHAFT 640 300 PSI Hydraulic Flail Mower OM...

  • Page 56: Motor, 65Cc With 280 Bar Relief (Shaft Seal Removed) (214668)

    Parts Identification Motor, 65cc with 280 Bar Relief (Shaft Seal Removed) (214668) NOTE: Seal kit available (not shown). See parts list for part number. QTY. PART # DESCRIPTION 208390 KIT, 640 MOTOR 300 PSI 208393 RELIEF, CHECK VALVE 208389 RING, RETAINER Hydraulic Flail Mower OM...

  • Page 57: Belt Assembly, 3 Band "A" (8.0" Top, 4.6" Bottom) - (208987)

    Parts Identification Belt Assembly, 3 Band “A” (8.0" Top, 4.6" Bottom) - (208987) QTY. PART # DESCRIPTION 211679 BELT, 3/B 54 8126 BUSHING, 1-1/2" TAPERLOCK KEYED 7121-02 KEY, 3/8" X 1-3/4" N17045 SHEAVE, 3B X 8.0 TPL 2517 211083 BOLT, 1/4 x 1-7/8 FULL THREAD 4231 WASHER, LOCK 1/4 208992...

  • Page 58: Belt Assembly, 3 Band "B" (7.0" Top, 5.4" Bottom) - (208988)

    Parts Identification Belt Assembly, 3 Band “B” (7.0" Top, 5.4" Bottom) - (208988) QTY. PART # DESCRIPTION 211679 BELT, 3/B 54 8126 BUSHING, 1-1/2" TAPERLOCK KEYED 7121-02 KEY, 3/8" X 1-3/4" N21850 SHEAVE, 3B 7 TPL 2517 211083 BOLT, 1/4 x 1-7/8 FULL THREAD 4231 WASHER, LOCK 1/4 N34050...

  • Page 59: Belt Assembly, 3 Band "C" (6.4" Top, 6.0" Bottom) - (208989)

    Parts Identification Belt Assembly, 3 Band “C” (6.4" Top, 6.0" Bottom) - (208989) QTY. PART # DESCRIPTION 211679 BELT, 3/B 54 8126 BUSHING, 1-1/2" TAPERLOCK KEYED 7121-02 KEY, 3/8" X 1-3/4" N34056 SHEAVE, 3B X 6.4 TPL 2517 211083 BOLT, 1/4 x 1-7/8 FULL THREAD 4231 WASHER, LOCK 1/4 N34052...

  • Page 60: Belt Assembly, 3 Band "D" (6.0" Top, 6.4" Bottom) - (208990)

    Parts Identification Belt Assembly, 3 Band “D” (6.0" Top, 6.4" Bottom) - (208990) QTY. PART # DESCRIPTION 211679 BELT, 3/B 54 7121-02 KEY, 3/8" X 1-3/4" 8126 BUSHING, 1-1/2" TAPERLOCK KEYED N34042 SHEAVE, TAPERLOCK 6.0 PD 3-BAND 211083 BOLT, 1/4 x 1-7/8 FULL THREAD 4231 WASHER, LOCK 1/4 N34074...

  • Page 61: Belt Assembly, 3 Band "E" (5.4" Top, 6.8" Bottom) - (208991)

    Parts Identification Belt Assembly, 3 Band “E” (5.4" Top, 6.8" Bottom) - (208991) QTY. PART # DESCRIPTION 211679 BELT, 3/B 54 8126 BUSHING, 1-1/2" TAPERLOCK KEYED 7121-02 KEY, 3/8" X 1-3/4" N34073 SHEAVE, 3B X 5.4 TPL 2517 211083 BOLT, 1/4 x 1-7/8 FULL THREAD 4231 WASHER, LOCK 1/4 8404...

  • Page 62: Machine Decals And Signs

    Parts Identification Machine Decals and Signs NOTE: All safety related decals are also shown in the Part No. 4334 Safety Instructions Section along with their location on the machine. See “Safety Decal Locations” on page 10. Check and replace any worn, torn, hard to read or missing decals on your machine.
  • Page 63 Parts Identification Machine Decals and Signs (Cont’d) Part No. N20661 Part No. 203264 Part No. N28385 Part No. 214428 WARNING IMPROPER CONNECTION TO THE POWER UNIT’S HYDRAULIC SYSTEM COULD CAUSE SERIOUS COMPONENT DAMAGE AND PERSONAL INJURY. This attachment can be configured with different components to operate on a variety of power units.
  • Page 64 Parts Identification Machine Decals and Signs (Cont’d) Part No. N13721 Part No. 209449 Part No. N13517 Part No. 4138 Part No. N28576 - (Large) Part No. N26973 - (Medium) Hydraulic Flail Mower OM...

  • Page 65: Appendix

    Appendix Specifications FLAIL MOWER DESCRIPTION 72HM 90HM Cutting Width 72.0 in. (182.9 cm) 90.0 in. (228.6 cm) Cutting Height 1 in. to 7 in. Roller Adjustment, or Roller Adjustment with Front Flail Wheels Operating Capacity 1 in. (2.54 cm) Continuous - Flail Knives;...

  • Page 66: Dimensions

    Appendix Dimensions FLAIL MOWER DESCRIPTION 72HM 90HM Cutting Width (A) 72.0 in. (182.9 cm) 90.0 in. (228.6 cm) Overall Width (B) 82.88 in. (210.52 cm) 100.88 in. (256.24 cm) Overall Depth (C) 45.0 in. (114.3 cm) Height (D) 35.75 in. (90.805 cm) Overall Depth (E) - with Floating 74.08 in.

  • Page 67: Torque Specifications

    Appendix Torque Specifications Inches Hardware and Lock Nuts Hydraulic Flail Mower OM...

  • Page 68: Metric Hardware And Lock Nuts

    Appendix Torque Specifications (Cont’d) Metric Hardware and Lock Nuts Hydraulic Flail Mower OM...
  • Page 70 Loftness Specialized Equipment, Inc. 650 So. Main Street • PO Box 337 • Hector, MN 55342 Tel: 320.848.6266 • Fax: 320.848.6269 • Toll Free: 1.800.828.7624 Printed in USA © Loftness 2025...

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