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BROWN 672HD, Owner'S/Operator'S Manual

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BROWN 672HD Owner'S/Operator'S Manual Download Page 1

672HD Model

Heavy Duty Cutter

Before operating your machine, 

stop and read this owners manu-

al.  Do not attempt to operate the 

unit until you fully understand the 

material covered in this manual.  

Without the knowledge contained 

in this manual, injury or death can 

result.

WARNING

 

   

www.brownmfgcorp.com

ATTENTION:

ALL WARRANTY WORK 

MUST

 BE APPROVED 

BY BROWN MFG. CORP.

BEFORE

 WORK BEGINS

Owner / Operator Manual

For use with the following starting Serial Numbers:

S605B-XXXX

Example: 

S605B-1295

Summary of Contents for 672HD

Page 1: ...fully understand the material covered in this manual Without the knowledge contained in this manual injury or death can result WARNING www brownmfgcorp com ATTENTION ALL WARRANTY WORK MUST BE APPROVED BY BROWN MFG CORP BEFORE WORK BEGINS Owner Operator Manual For use with the following starting Serial Numbers S605B XXXX Example S605B 1295 ...

Page 2: ...oduced either in whole or in part provided that the content herein is not altered We encourage you to make copies of this manual and to distribute it to every operator of the machine Additional copies are also available from Brown Manufacturing Corporation Cover Illustrated Model 672HD brush cutter Disclaimer Due to engineering improvements and revision of product specifications the information co...

Page 3: ...Warranty 4 Registration 5 Equipment Safety 7 Assembly 16 Operation 18 Maintenance 20 Troubleshooting 28 Specifications 29 Replacement Parts 30 Contents ...

Page 4: ... OR IMPLIED WITH RESPECTTOANYOFBROWN S PRODUCTS INCLUDED BUTNOTLIMITEDTOANYMERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE IN NO EVENT SHALL BROWN BE RESPONSIBLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE SUFFERED BY PURCHASER OR ANY OTHER PERSON OR ENTITY CAUSED IN WHOLE OR IN PART BY ANY OF BROWN S PRODUCTS Any person or entity to whom this warranty extends and who claims brea...

Page 5: ...ing Corp cannot and will not be responsible for any returned goods Drive shaft slip clutch warranties Many factors can cause a slip clutch to fail Most failures are not caused by the quality of workmanship or of materials used in the component Therefore all warranty claims on drive shafts slip clutches are sent to the manufacturer of the component All warranties approved by the component manufactu...

Page 6: ... with the proper safety and operation information Two 2 copies are provided with each unit One copy is for the owner to have at office for review when not operating the equipment Second copy is to stay with the unit at all times This will provide the operator the information needed for safe and proper operation of the unit If the Owner s Manual becomes lost or damaged contact Brown Mfg or your loc...

Page 7: ...e equipment for their training and reference Additional copies are available from Brown Manufacturing Corporation IMPORTANT NOTICE OWNER S MANUAL STORAGE CONTAINER Brown Manufacturing provides an Owner s Manual storage container on all equipment This holder is mounted in a convenient location and provides the owner with the proper safety and operation information Two 2 copies are provided with eac...

Page 8: ...anent part of your equipment Should ownership of the equipment be transferred this manual must also be transferred Unauthorized modifications to the equipment are not recommended This could impair the function safety and life of the machine For any part of this manual that you do not understand contact your dealer or Brown Manufacturing Corporation at 800 633 8909 All implements with moving parts ...

Page 9: ...es les consignes du manuel de propriétarie avant d utiliser la unité Read and understand owner s manual be fore operating unit Part No SD 001A THROWN OBJECT HAZARD To prevent serious injury or death from thrown objects Stay clear when blade is turning Operate only with all guards installed and in good condition Stop operation if bystanders come within several hundred feet DANGER SD 007A Standard m...

Page 10: ...CAUSE DEATH KEEP AWAY DO NOT OPERATE WITHOUT All driveline guards tractor and equipment shields in place Drivelines securely attached at both ends Driveline guards that turn freely on driveline Part No SD 006A Part No SD 011A WARNING MISSING DEFLECTOR HAZARD To prevent serious injury or death from thrown objects Install deflector around operator enclosure as described in manual before starting Def...

Page 11: ... Safety Decal Tighten blade bolts C SD SW2 Safety Decal When servicing use proper tools and equipment D SD 010 Safety Decal Read and understand owners manual F SD 001A Safety Decal Thrown object hazard 2 req G SD 005A Safety Decal Rotating blades 2 req H SD 006A Safety Decal Rotating driveline I SD 011A Safety Decal Missing deflector hazard J SD 007A SD 008A Safety Decal Operate only at 540 RPM Sa...

Page 12: ...of debris before operating DANGER Warning Fasten Seatbelt Before Starting Tractor Always Wear Your Seatbelt Danger Protect bystanders clear work area of debris Do not operate the cutter near people Debris can be thrown hundreds of feet Clear work area of foreign objects such as wire glass and other debris Debris thrown by the cutter can cause serious injury or death Warning Parking and dismounting...

Page 13: ...Never operate cutter with bystanders present DANGER Note Not to scale Warning Prepare for emergencies Keep fire extinguisher and first aid kit available Inspect fire extinguisher and check for charge daily Check first aid kit for expired contents and keep stocked Warning Check equipment before operating Tighten all nuts and bolts before operating Make certain that equipment is lowered to ground be...

Page 14: ... a certified roll over protective structure ROPS WARNING Use only with tractors equipped with a certified roll over protective structure Warning Slopes and rough terrain When operating on slopes or rough terrain decrease travel speed Do not operate in an area where the tractor could roll over Be sure to fasten safety belt when operating tractor WARNING Slow travel speed when operating on slopes or...

Page 15: ...actor ROPS to the lift pins of the cutter unit The chains are intended to hold the weight of the unit insuring that the front of the cutter remains at a fixed altitude above the ground and removing the weight of the unit from the tractor s lift arms Choke chains attach to the outside of the cutter unit s lift pins after the tractor s lift arms have been properly attached to the unit The chains hit...

Page 16: ...its operational position almost perpendicular to the cutter deck Remove bolt holding Flex link toggle to the A frame Install A frame braces to outside surface of A frame and replace bolt Note keep top toggle in position when reinstalling A frame bolt 3 Bolt the rear end of the A frame brace to the mounting bracket near the read or the machine deck 4 Tighten all bolts securely ...

Page 17: ...ve both lock bolts from the clutch hub assembly Slide the hub onto the input shaft of the gearbox Align the groove on the input shaft with the bolt holes in the hub Reinstall the lock bolts and tighten securely Retorque lock bolts every hour for the first eight hours of use Failure to do so will result in decreased life of the clutch hub and gearbox shaft splines 8 Check the drive shaft for proper...

Page 18: ...n when on level ground See Illustration 19 1 Attach the driveline to the tractor When attaching driveline to PTO shaft be certain that the quick disconnect pin is properly seated Warning A loose driveline can disconnect and cause personal injury or property damage Adjust cutting height Warning Be certain that tractor engine is stopped key is removed and all rotation of the cutter has ceased before...

Page 19: ...peed always operate the PTO at the recommended RPM when cutting General Operation Warning The cutter creates a very serious discharge hazard Maintain a safe distance from nearby persons and property Do not operate when bystanders are present Warning Avoid personal injury Remove all rocks and other debris from work area before cutting Observe the following guidelines when operating the cutter Never...

Page 20: ...OLTS Blade bolts MUST be kept tight and checked twice daily during operation Every hour for the first 8 hours of use a Brown s blade bolts are designed for the extreme conditions and should not be substituted for any reason b 600 Series blade bolts are RIGHT hand thread c Bolts and lock nuts are matched as pairs or sets do not mix d See maintenance section for proper torque specifications BLADE BA...

Page 21: ...e power of tractor e Timely replacement of worn clutch discs f Proper reassembly of slip clutch WARNING NEVER ALLOW BLADES TO COME INTO CONTACT WITH ROCKS OR STUMPS The blades will be forced to glance over the top of the obstruction causing a tremendous amount of upwards pressure on the blades blade bar and output shaft This pressure can and will cause fatigue cracking and possible breakage of the...

Page 22: ... removed to insure that the blade may pivot freely on the blade bolt Warning Failure to maintain freely pivoting blades will cause severe vibration or blade breakage which can result in injury or death 3 Tighten blade bolts and blade bar nut Warning Failure to tighten blade bolts and blade bar nut can cause blade bolts blades or output shafts to break which can result in injury or death 4 Check fo...

Page 23: ... Use the blade bolt access door in the top of the deck It can be accomplished by hand however it requires at least a 10 foot cheater bar with a minimum force of 160 pounds on the end to develop 1600 ft lbs If the bolt turns you will have to hold the head of the bolt with a wrench having a 4 opening Our bolt wrench part number TC 165B Wrench 6 Tightening Blade Bar Remove blade bar cotter pin and ti...

Page 24: ...ally fifteen 15 times per second This situation will cause the blade to break from fatigue and to be ejected from the cutter The third danger is that while the second situation is occurring the blade bolt is also hammering the underside of the blade carrier the shoulder of the blade bolt beats an indention around the blade bolt hole into which the bolt shoulder will fit When this damage occurs the...

Page 25: ...he cutting action takes place NOTE Failure to keep the blades sharp will cause multiple problems including 1 Slip clutch failure 2 Extreme blade bolt wear 3 Blade bar fatigue cracking and total failure 4 Blade fatigue cracking and total failure 5 Deck fatigue and cracking 6 Increased amount of discharge or debris 7 Poor cut increased amount of uncut material Food for Thought If your blade was an a...

Page 26: ...ment or deck attitude will increase the torque load to the clutch See proper deck adjustment in this manual The front of the cutter deck should be adjusted 1 inch lower than the rear of the deck this allows the material to be cut on the front side of the blade arc If the deck were adjusted with the front higher than the rear all the material will be cut twice NEVER lower cutter deck down onto mate...

Page 27: ...hat has suitable safety equipment properly installed 3 ALWAYS Operate this equipment with all safety devices properly installed on this equipment 4 ALWAYS Inspect walk flag or remove all foreign material from job site before starting the cutting process 5 NEVER Allow riders or bystanders within 300 feet of this unit during operation 6 ALWAYS Check all bolts fasteners fittings and oil levels before...

Page 28: ...d gearbox 4 Bearing or gears set improperly 1 Fill to full level 2 Replace with correct lubricant 3 Remove debris 4 Consult dealer Noisy gearbox 1 Rough gears 2 Worn bearing 1 Run for a short break in period or replace gears 2 Replace bearing Leaking gearbox 1 Damaged oil seal 2 Bent shaft 3 Oil seal installed incorrectly 4 Oil level too high 5 Shaft rough or pitted in oil seal area 6 Seal bore wo...

Page 29: ...ll Deck Width 81 6 9 Cutting Elevation 2 to 12 Deck Construction 1 4 steel plate A frame Construction 3 x 3 x 1 4 tubing with Flex Link Category II hitch Weight 1720 lbs Blades Qty 2 5 8 x 6 Ultra KOR alloy Blade Bar 1 1 4 solid steel plate 26 1 2 diameter Drive Shaft Heavy duty fully shielded Tail Wheel 500 x 8 laminated solid tire Gearbox 145 HP Slip Clutch Heavy duty 4 disc slip clutch Horsepow...

Page 30: ...30 Heavy Duty Tailwheel Assembly Replacement Parts Standard Tailwheel Assembly w Tail Wheel 15 14 5 6 16 21 22 Washers both sides 20 19 18 17 No Longer Available ...

Page 31: ...eel arm with fork holder NO LONGER AVAILABLE See Item 16 8 6 010 1 Complete tailwheel assembly 9 TC 012 1 Roll pin 1 2 x 2 10 TC 011 1 Collar 11 6 004 1 Fork 12 TC 106 1 Axle 13 TC 114 1 Axle nut 14 TC 115 1 Cotter Pin for Axle Nut 15 TC 113XA 1 Tire and wheel assembly 16 232 5000 1 Heavy Duty Tail Wheel Assembly 17 232 5010 1 Tail Wheel Arm Base 18 232 5050 1 672HD Tail Wheel Arm 19 TC 119X 1 Tai...

Page 32: ...Replacement Parts 32 Deck Assembly 2B 2A 2 19 20 21 22 ...

Page 33: ...Blade carrier 11 T5 165NB 2 Blade bolt w Nut NP T5 165S var Blade Bolt Shim used in some cases if blade is binding under blade bar 12 TC Wrench 1 Socket wrench Fits Blade Bolt Socket 13 T 2600 001 1 Removal tool 14 T5 004BS 1 165 Blade bolt socket 15 T5 054AS 1 145 165 Blade bar socket 16 T5 079NB 2 Blade Large Hole 2 75 17 MH 01 1 Manual container 18 6 012 1 Chain guard front 19 TC2 011 1 Cable 5...

Page 34: ...Replacement Parts 34 145 HP Gearbox ...

Page 35: ...using 10 BM 109 Bearing set rear input shaft 11 BM 102 BM 115 Input shaft 1 3 4 x 6 spline Input shaft 1 3 4 x 20 spline 13 T5 060 Bearing set front input shaft 15 BM 101 Seal input 16 235 0032 Bearing Set bottom output shaft 17 T5 065 Seal output 18 BM 112 Output shaft tapered 19 T5 048 Output seal guard 20 T5 054A Nut flanged castellated 21 T5 050 Bolt Hex Head M10 x 20 for Top Plate NP T5 074T ...

Page 36: ...e 3A T5 W7 Outboard Yoke Outer Profile 4 T5 W36 Yoke with quick disconnect pin kit 540 RPM 5 236 0614 Inner Profile Tube 5A 236 0615 Outer Profile Tube 6 236 0612 Spring Pin 10 x 90 7 T5 W2 ASG Connection Kit 8 236 0601 Friction Clutch 1 3 4 x 6 Spline Metric NP 236 0600 Drive Shaft Complete 1 3 8 6 x 1 3 4 6 spline Part No Description 236 0610 Main DL Complete shield assembly A ...

Page 37: ...ecked for tight and safe fit The safe fit then needs to be checked at regular intervals during operation Re tighten clamping cone as necessary 4 To disassemble loosen clamping cone and remove it from the yoke or clutch If the clamping cone cannot be removed by hand it can be released from the opposite side by using a hammer and a pin punch Note The clamping cone is serviced only as a complete asse...

Page 38: ... Inner Profile 3a T5 W7 1 Outboard Yoke Outer Profile 4 236 0614 1 Inner Profile Tube 5 236 0615 1 Outer Profile Tube 6 236 0612 2 Spring Pin 10 x 90 7 T5 W2 1 Quick Disconnect Kit 1 3 8 8 236 3005 1 Friction Clutch 1 3 4 x 20 spline NP 236 3100 1 Drive Shaft Complete 1 3 8 21 x 1 3 4 20 spline Driveline Safety Shield Part No Description 236 0610 Main DL Complete shield assembly A Replacement Part...

Page 39: ...ur 5th Hour 6th Hour 7th Hour 8th Hour Maintenance Repair Log Please record all maintenance and repair services performed on the cutter This log may help identify reoccurring problems with your cutter and may be requested by the manufacturer when making war ranty claims Additional log pages may be copied or ordered from Brown Mfg Corp Maintenance ...

Page 40: ...Version 2 7 1 August 2018 Model 672HD This Manual for use with Serial Numbers with 5th character of B Example S605B 1000 www brownmfgcorp com ...

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