BROWN 460, 400 Series, 472D, 484, 472 Operator's Manual

400 Series

Rotary Cutter

ATTENTION:

ALL WARRANTY WORK MUST BE APPROVED

BY BROWN MFG. CORP.

BEFORE WORK BEGINS

Owner / Operator Manual

WARNING

Before operating your machine,
stop and read this owners manu­al. 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.

Copyright Infomation

Copyright ©2000 Brown Manufacturing Corporation, Ozark, Alabama. All photos and illustrations are
property of Brown Manufacting Corporation. “Texaco” and “Mobil” are trademarks of their respec­tive companies. This publication may be freely reproduced, 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 Manifacturing
Corporation.

Cover

Illustrated: Model 472 rotary mower.

Disclaimer

Due to engineering improvements and revision of product specications, the information contained in

this manual is subject to change without notice.

Contents

Warranty ........................................................................................................................... 4

Registration ...................................................................................................................... 6

Equipment Safety ............................................................................................................. 7

Assembly........................................................................................................................ 16

Operation ........................................................................................................................ 18

Maintenance ................................................................................................................... 20

Troubleshooting ............................................................................................................. 30

Specications ................................................................................................................. 31

Replacement Parts .......................................................................................................... 32

4

BROWN MANUFACTURING CORP.

Limited Warranty

1. LIMITED WARRANTIES

1.01. . Brown Manufacturing Corp. warrants for one year from the purchase date to the original non-commercial, governmental, or mu­nicipal purchaser (“Purchaser”) and warrants for ninety (90) days to the original commercial or industrial purchaser (“Purchaser”) that the
goods purchased are free from defects in material or workmanship.

1.02. Manufacturer will replace for the Purchaser any part or parts found, upon examination at its factory, to be defective under normal use
and service due to defects in material or workmanship.

1.03. This limited warranty does not apply to any part of the goods which has been subjected to improper or abnormal use, negligence,

alteration, modication, or accident, damaged due to lack of maintenance or use of wrong oil or expendable items such as blades, shields,
guards, or tires except as specically found in your Operator’s Manual.

1.04. Except herein, no employee, agent, Dealer, or other person is authorized to give warranties of any nature on behalf of the Manufac­turer.

2. REMEDIES AND PROCEDURES

2.01. This limited warranty is not effective unless the Purchaser returns the Registration and Warranty Form to Manufacturer within 30
days of purchase.

2.02. Purchaser claims must be made in writing to the Authorized Dealer (“Dealer”) from whom Purchaser purchased the goods or an ap­proved Authorized Dealer (“Dealer”) within 30 days after Purchaser learns of the facts on which the claim is based.

2.03. Purchaser is responsible for returning the goods in question to the Dealer.

2.04. If after examining the goods and/or parts in question, Manufacturer nds them to be defective under normal use and service due to

defects in material or workmanship, Manufacturer will:
(a) Repair or replace the defective goods or part(s) or
(b) Reimburse Purchaser for the cost of the part(s) and reasonable labor charges (as determined by Manufacturer) if Purchaser paid for the

repair and/or replacement prior to the nal determination of applicability of the warranty by Manufacturer. (The choice of remedy shall

belong to Manufacturer).

2.05. Purchaser is responsible for any labor charges exceeding a reasonable amount as determined by Manufacturer and for returning the
goods to the Dealer, whether or not the claim is approved. Purchaser is responsible for the transportation cost for the goods or part(s) from
the Dealer to the factory.

3. LIMITATION OF LIABILITY

3.01. . MANUFACTURER DISCLAIMS ANY EXPRESS (EXCEPT AS SET FORTH HEREIN) AND IMPLIED WARRANTIES FOR A
PARTICULAR PURPOSE.

3.02. MANUFACTURER MAKES NO WARRANTY AS TO THE DESIGN, CAPABILITY, CAPACITY, OR SUSTA INABILITY FOR
USE OF THE GOODS.

3.03. EXCEPT AS PROVIDED HEREIN, MANUFACTURER SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO PUR­CHASER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS, OR DAMAGE CAUSED OR AL­LEGED TO BE CAUSED DIRECTLY OR INDIRECTLY BY THE GOODS INCLUDING, BUT NOT LIMITED TO, ANY INDIRECT,
SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES RESULTING FROM THE USE OR OPERATION OF THE GOODS
OR ANY BREACH OF THIS WARRANTY. NOT WITHSTANDING THE ABOVE LIMITATIONS AND WARRANTIES, MANUFAC-

TURER’S LIABILITY HEREUNDER FOR DAMAGES INCURRED BY PURCHASER OR OTHERS SHALL NOT EXCEED THE

PRICE OF THE GOODS.

3.04. NO ACTION ARISING OUT OF ANY CLAIMED BREACH OF THIS WARRANTY OR TRANSACTIONS UNDER THIS WAR­RANTY MAY BE BROUGHT MORE THAN TWO (2) YEARS AFTER THE CAUSE OF ACTION HAS OCCURRED.

4. MISCELLANEOUS

4.01. Proper venue for any lawsuits arising from or related to this limited warranty shall be only in Dale County, Alabama.

4.02. Manufacturer may waive compliance with any of the terms of this limited warranty, but no waiver of any terms shall be deemed to
be a waiver of any other term.

4.03. If any provision of this limited warranty shall violate any applicable law and is held to be unenforceable, then the invalidity of such
provision shall not invalidate any other provisions herein.

4.04. Applicable law may provide rights and benets to Purchaser in addition to those provided herein.
KEEP FOR YOUR RECORDS (ATTENTION: READ YOUR OPERATOR’S MANUAL)
ATTENTION: Purchaser should ll in the blanks below for his reference when buying repair parts and/or for proper machine identica-

tion when applying for warranty.

Brown Implement Model _____________________________Serial Number__________________________

Date Purchased___________________________ Dealer__________________________________________

Brown Manufacturing Corp.
6001 E. Hwy 27
Ozark, AL 36360
800-633-8909

[email protected]

TO THE OWNER/OPERATOR/DEALER
In addition to the standard Limited Warranty shown on the facing page, Brown Manufacturing Corp.
also provides:

1.) ONE-YEAR (12 months) {or 90 days for Commercial/Industrial Users} LIMITED WARRANTY
on the DRIVELINE components provided they have been properly maintained† and have not been
subjected to abuse or misuse.

2.) FIVE-YEAR (60 months) LIMITED WARRANTY* on GEARBOX components provided they
have been properly maintained† and have not been subjected to abuse or misuse except as limited
below.

* WARRANTY LIMITATIONS - GEARBOX
A) Warranty is ONE-YEAR (12 months) for Seals (After one year, seals are considered to be

WEARING PARTS and replacement is user’s responsibility).
B) User’s Gearboxes may be rebuilt by Brown Manufacturing Corp. or replaced by new or rebuilt

Gearboxes at the option of Brown Manufacturing Corp.

† NOTE — “properly maintained” specically includes, but is not limited to:

A) Running Gearboxes with the proper amount of the correct lubricant.
B) Adjusting Slip Clutches correctly to provide protection for Driveline and Gearbox
Components.
______________________________________________________________________________

5

To keep your implement running efciently and safely read your manual thoroughly and follow
these directions and the Safety Messages in this Manual. The Table of Contents clearly identies
each section where you can easily nd the information you need.

The OCCUPATIONAL SAFETY AND HEALTH ACT (1928.51 Subpart C) makes these minimum
safety requirements of tractor operators:

REQUIRED OF THE OWNER:

1. Provide a Roll-Over-Protective Structure that meets the requirements of this Standard, and

2. Provide Seatbelts that meet the requirements of this paragraph of this Standard and SAE J4C; and

3. Ensure that each employee uses such Seatbelt while the tractor is moving; and

4. Ensure that each employee tightens the Seatbelt sufciently to conne the employee to the pro­tected provided by ROPS.

REQUIRED OF THE OPERATOR:

1. Securely fasten seatbelt if the tractor has a ROPS.

2. Where possible, avoid operating the tractor near ditches, embankments, and holes.

3. Reduce speed when turning, crossing slopes, and on rough, slick, or muddy surfaces.

4. Stay off slopes too steep for safe operation.

5. Watch where you are going — especially at row ends, on roads, and around trees.

6. Do not permit others to ride.

7. Operate the tractor smoothly — no jerky turns, starts, or stops.

8. Hitch only to the drawbar and hitch points recommended by the tractor manufacturer.

9. When the tractor is stopped, set brakes securely and use park lock, if available.

Please complete the form below and mail to: Brown Mfg. Corp. - 6001 E. Hwy. 27 - Ozark, AL 36360

BROWN MANUFATUCTURING CORP. ® WARRANTY REGISTRATION INFORMATION

6

Brown Model ______________ Serial No._________ Purchase Date (mm/dd/yy) ___/___/____
Purchaser Last Name _____________________ First Name____________________ M.I._____
Street & No., RFD,
Box, &/or Apt. No._____________________________________________________________
City: _____________________________________ State or Province: _____ Zip __________
Dealer: ______________________________________________________________________
City: _____________________________________ State or Province_______ Zip___________
. I have informed the Purchaser of this product of Warranty terms, provisions, and procedures that

are applicable, reviewed the contents of the Operator’s Manual including safety equipment, safe

operation, and maintenance, reviewed the Safety Signs on implement (and tractor if possible), and

Purchaser’s responsibility to train his operators in safe operation.
. IMPLEMENTS: I have explained that Deectors, Chain Guards, or Solid Skirts must be maintained

in good repair and installed except in areas where persons, vehicles, livestock, or other property will

not be endangered by thrown objects and where such safety equipment would prevent the mower’s

reasonable performance of its assigned task.
. DRIVELINES: I have made certain that all driveline, gearbox, and other shields are in good repair
and fastened securely in place to prevent injuries from entanglement or thrown objects.

Dealer’s Signature: _______________________________________ Date:____________________

I have been instructed on the paragraphs above, received and have been instructed on the contents of

the Operator’s Manual including safety signs, safety equipment, safe operation, maintenance, and the
potential hazards of unauthorized alterations or modications of the product. I have been informed

of the warranty provisions and know that the warranty is not in effect until this form is received by
Brown Manufacturing Corp.
I understand the Implement Guarding statements above and the potential hazards of operating with­out such guards. I understand that the operator is responsible for the safety of others in the area. I
have examined the product and accept it as being complete and in satisfactory condition with all
required guards.
CUSTOMER COPY

Purchaser’s Signature:______________________________________ Date:__________________

PRE-DELIVERY SERVICE

CHECK AND ADJUST OR LUBRICATE AS REQURIED

See Operator’s Manual for Details

Inspection performed — Warranty and Safety Procedures Explained — Installation Complete

□ Gearbox (Oil Levels)
□ Wheel Hubs (Lubricate)
□ Wheel Hub Seals □ Tail Wheel Arm(s) (Height Adjustment)

□ Wheel Bearing (Check Grease and Preload)

□ Shredding Attachments □ Correct Blade Rotation Direction
□ Axle Arms and Beams
□ A-Frame Pivot and Links □ Cutting Height (Adjust Front to Rear)
□

Protective Shields (Operation and Installation) □ Driveline Clutch (Torque Limiter) (Adjust and

□ Safety Decals (Installed) □ Operator’s Manual (Supplied)
□ Tractor PTO Shield (Installed) □ S.M.V. Emblem (Installed if Needed)

CUSTOMER COPY

□ Drivelines (Proper Length and Lubrication)

□ Gearbox Vent Plugs (Location and Operation)

□ Deectors Front and Rear

□ All Bolts — Pins and Nuts (Proper Torque)

Run In)

Purchaser’s Signature______________________Date_________Dealer’s Signature________________________Date__________

Please complete the form below and mail to: Brown Mfg. Corp. - 6001 E. Hwy. 27 - Ozark, AL 36360

BROWN MANUFATUCTURING CORP. ® WARRANTY REGISTRATION INFORMATION

7

Brown Model ______________ Serial No._________ Purchase Date (mm/dd/yy) ___/___/____
Purchaser Last Name _____________________ First Name____________________ M.I._____
Street & No., RFD,
Box, &/or Apt. No._____________________________________________________________
City: _____________________________________ State or Province: _____ Zip __________
Dealer: ______________________________________________________________________
City: _____________________________________ State or Province_______ Zip___________
. I have informed the Purchaser of this product of Warranty terms, provisions, and procedures that

are applicable, reviewed the contents of the Operator’s Manual including safety equipment, safe

operation, and maintenance, reviewed the Safety Signs on implement (and tractor if possible), and

Purchaser’s responsibility to train his operators in safe operation.
. IMPLEMENTS: I have explained that Deectors, Chain Guards, or Solid Skirts must be maintained

in good repair and installed except in areas where persons, vehicles, livestock, or other property will

not be endangered by thrown objects and where such safety equipment would prevent the mower’s

reasonable performance of its assigned task.
. DRIVELINES: I have made certain that all driveline, gearbox, and other shields are in good repair
and fastened securely in place to prevent injuries from entanglement or thrown objects.

Dealer’s Signature: _______________________________________ Date:____________________

I have been instructed on the paragraphs above, received and have been instructed on the contents of

the Operator’s Manual including safety signs, safety equipment, safe operation, maintenance, and the
potential hazards of unauthorized alterations or modications of the product. I have been informed

of the warranty provisions and know that the warranty is not in effect until this form is received by
Brown Manufacturing Corp.
I understand the Implement Guarding statements above and the potential hazards of operating with­out such guards. I understand that the operator is responsible for the safety of others in the area. I
have examined the product and accept it as being complete and in satisfactory condition with all
required guards.
CUSTOMER COPY

Purchaser’s Signature:______________________________________ Date:__________________

PRE-DELIVERY SERVICE

CHECK AND ADJUST OR LUBRICATE AS REQURIED

See Operator’s Manual for Details

Inspection performed — Warranty and Safety Procedures Explained — Installation Complete

□ Gearbox (Oil Levels)
□ Wheel Hubs (Lubricate)
□ Wheel Hub Seals □ Tail Wheel Arm(s) (Height Adjustment)

□ Wheel Bearing (Check Grease and Preload)

□ Shredding Attachments □ Correct Blade Rotation Direction
□ Axle Arms and Beams
□ A-Frame Pivot and Links □ Cutting Height (Adjust Front to Rear)
□

Protective Shields (Operation and Installation) □ Driveline Clutch (Torque Limiter) (Adjust and

□ Safety Decals (Installed) □ Operator’s Manual (Supplied)
□ Tractor PTO Shield (Installed) □ S.M.V. Emblem (Installed if Needed)

FILL OUT & RETURN

□ Drivelines (Proper Length and Lubrication)

□ Gearbox Vent Plugs (Location and Operation)

□ Deectors Front and Rear

□ All Bolts — Pins and Nuts (Proper Torque)

Run In)

Purchaser’s Signature______________________Date_________Dealer’s Signature________________________Date__________

8

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 each unit.

*One copy is for the owner to have at ofce 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 local Brown

dealer for free replacement.

Equipment Safety

Warning: Read this manual before operation.

Operators of the equipment must read and understand this manual. Failure to read this manual and
follow these safety and operating instructions could result in serious bodily injury or even death.

WARNING

Before operating your machine, stop
and read this owners manual. Do
not attempt to operate the unit until
you fully understand the material

9

covered in this manual. Without the
knowledge contained in this manual,
injury or death can result.

Each operator of the equipment should review this manual every six (6) months. You are encouraged
to duplicate this manual and to distribute it to each operator of the 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 each unit.

*One copy is for the owner to have at ofce 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 local Brown dealer for free

replacement.

10

Equipment Safety

Recognize safety information

This is the safety alert symbol. When you see this symbol on your equipment or in this
manual, be alert to the potential for personal injury or injury to others.

Understand signal words

CAUTION used without the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in property dam­age.

CAUTION

CAUTION indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.

WARNING indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.

DANGER indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.

CAUTION

WARNING

DANGER

Follow safety instructions

• Read owner/operator manual.

• Replace missing or damaged safety decals.

• Safety decals and this manual must be considered a permanent part of your equipment.

• Should ownership of the equipment be transferred, this manual must also be transferred.

• Unauthorized modications 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 [phone].

• All implements with moving parts are potentially dangerous. Due to this fact, there is no

substitute for a safe, knowledgeable operator. It is important that all persons operating this
equipment read, understand, and follow the instructions provided in this manual.

Equipment Safety

Safety Decals

The following safety decals should be attached to the equipment at all times. Should any decals become
damaged or lost, it is the responsibility of the owner to replace it. Additional decals may be obtained
from the dealer or Brown Manufacturing Corporation.

11

WARNING

Read and understand
owner’s manual be­fore operating unit.

Part No.: SD-010, All models.

DANGER

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.

ADVERTENCIA

Antes de probar la unidad por primera vez
deben remitirse a las instrucciones contenidas
en el manual.

ADVERTISSEMENT

S’assurer de bien comrendre toutes les
consignes du manuel de propriétarie avant
d’utiliser la unité.

WARNING

To prevent serious injury
or death:

•Operate only at 540 RPM
PTO.

•Keep guards and shields

in place.

SD-007A, Standard models*.

*All Brown 400 Series rotary
mowers are equipped for 540 RPM
PTOs as standard. Equipping for
1000 RPM PTOs is an option,
however; in such a case, use safety
decal SD-008A.

Part No.: SD-001A, All models.

12

Equipment Safety

Safety Decals (continued)

DANGER

Tighten blade bolts
as prescribed in
owner/operator’s
manual.

Part No.: SD-002, All models.

DANGER

SHIELD MISSING

DO NOT OPERATE

Part No.: DC-3-5-018, All models.

WARNING

To prevent serious injury or death:

•Read and understand Operator’s Manual

before using.

•Do not permit riders on the tractor or mower.

Never carry child on the tractor seat.

•Operate with guards installed and in good condition.

•Operate only with tractor equipped with ROPS

and seatbelts.

•Keep away from moving parts.

•Stop engine, set brake and wait for all moving parts

to stop before dismounting.

•Be sure lights and reectors required by law are

clean and in good working order before transporting.

•Do not allow children to operate mower.

•Travel with SMV and lights that follow local codes.

•Clear debris from mowing area.

•Do not operate in the raised position.

•Support securely before working beneath unit.

•Review safety instructions annually.

CAUTION

To Avoid Injury or Machine Damage:

•When servicing machine use

proper tools and equipment.

•Refer to operations manual for

instructions.

Part No.: SD-SW2, All models.

DANGER

ROTATING BLADES

To prevent serious injury or death
from rotating blades:

•Stay clear when blades are

turning or engine is running.

•Do not place hands or feet under

deck when the engine is running.

Part No.: SD-005A, All models.

DANGER

ROTATING DRIVELINE -

CONTACT CAN 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, All models.Part No.: SD-009A, All models.

Equipment Safety

Safety Decals (continued)

Safety decals must be positioned as illustrated below. Use this diagram to correctly identify missing,
damaged, or illegible decals for replacement.

13

Ref. No. Part No. Description

A SD-007A Safety Decal: Operate at 540 RPM PTO.

B SD-009A Safety Decal: (General safety issues.)

C SD-002 Safety Decal: Tighten blade bolts.

D SD-SW2 Safety Decal: When servicing, use proper tools and equipment.

E 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.

Not pictured DC-3-5-018 Safety Decal: Shield missing (placed on drive shaft, under shields).

Not pictured SD-400 Complete safety decal set

14

Equipment Safety

Warning! Transport with

care.

Before transporting to a new location, make certain
that the slow-moving vehicle (SMV) emblem is

installed and is clearly visible. Use ashing lights
and follow local trafc regulations.

Danger! Protect bystanders,

clear work area of debris.

Do not operate the mower 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 mower can cause serious injury
or death.

Warning! Parking and dismounting.

The rotating parts of this mower continue to rotate
even after the PTO has been disengaged. The opera­tor should remain seated until rotation has stopped.
He should then set the brake, turn off the engine,
and remove the key. See tractor manual for proper
parking procedure.

WARNING

Transport with care.
Use slow-moving
vehicle emblem

and ashing light.

Follow local

trafc regulations.

DANGER

Do not operate cut­ter near bystanders.
Clear work area of
debris before op­erating.

WARNING

Wait for all rotation
to stop before
dismounting
tractor.

Caution! Avoid res.

Keep the machine clean of debris, trash, and any

other ammable material.

CAUTION

K e e p m a c h i n e
clean of deb ri s.
Flammable debris
on machine poses

re hazard.

Equipment Safety

15

Fire

WARNING

Prepare for
emergencies.

Keep re extin­guisher and rst

aid kit available.

WARNING

Check equipment
before operation.
Tighten all nuts
and bolts.

DANGER

Rotating blades.
Keep hands and
feet from under cut­ter deck.

Warning! Prepare for

emergencies.

Keep re extinguisher and rst aid kit available.
Inspect re extinguisher and check for charge
daily. Check rst 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 be­fore attempting to make adjustments or perform
maintenance. Replace or repair any safety device,
bolts, etc., if damaged or worn.

Danger! Stay clear of

rotating blades.

The mower is designed to cut grass and brush up
to two inches in diameter. Keep hands and feet

from under mower deck!

Maintain safety dis­tance of at least 300
ft. Failure to do so
may cause
serious injury or
death.

DANGER

Danger! Maintain safety

distance.

The mower creates a serious discharge hazard.
Always maintain a safety distance of at least
300 ft. Never operate mower with bystanders

present!

16

Equipment Safety

Warning! Wear protective

clothing.

Wear close-tting clothing and other protective

devices appropriate for the job.

Warning! Roll-over

protection.

Do not operate the mower on any tractor not
equipped with a certied roll-over protective struc­ture (ROPS).

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

Wea r pr ot e ct iv e
clothing.

WARNING

Use only with
tractors equipped

with a certied

roll-over protective
structure.

WARNING

Slow travel speed
when operating on
slopes or rough ter­rain.

Danger! Tighten blade

bolts.

Blade bolts will stretch with use and must be tight­ened. Follow maintenance instructions in this man­ual (see page 21). If the mower is operated with

loose blade bolts, blades and blade carrier will be
damaged. Operation with damaged blades and
blade carrier will lead to blade ejection and will
cause serious injury or death.

DANGER

Tighten blade bolts
as prescribed in
ow ne r s m an u al .
Ejection of blade
will cause serious
injury or death.

Equipment Safety

17

DANGER

Riders can be
injured or killed.
Keep riders
off machine.

DANGER

Stay clear of
rotating drivelines.
Keep driveline
shields in place.

WARNING

Exe rc ise ca ut ion

while working under
cutter deck. Failure
to heed warnings
may lead to seious
injury or death.

Danger! Keep riders off

machine.

Riders can be seriously injured or killed by en­tanglement or by falling.

Danger! Stay clear of

rotating drivelines.

Entanglement in driveline can cause serious
injury or death. Keep driveline shields in place

at all times during operation. Driveline must turn
freely inside shields. Driveline shields must be
chained to prevent rotation.

Warning! Hazardous

service conditions.

While working under the mower deck, be aware
of safety hazards. Follow safety precautions

specied in this manual (see page 22). Failure

to exercise caution may lead to serious injury or
death.

18

Assembly

1. Fold tailwheel arms back from their shipping position toward the height adjustment brackets. Install

tailwheel stem into fork holder tube, placing collar over stem and inserting roll key through collar
and stem. Install height adjustment pin through arm and bracket. Assembly for models 472D and

484 is almost identical to that of the 460 and 472; the 472D and the 484 have twin tailwheels and
require this step to be completed twice.

2. Install A-frame on hitch brackets. Install A-frame braces to outside of front tailwheel brackets.

Remove bolt from top of A-frame and mount A-frame braces to outside surface of A-frame.

Note: Keep top toggle in position when reinstalling A-frame bolt.

3. Raise the mower with a tractor and properly adjust the tailwheel height. Next, reinstall lynch pins

into height adjustment pin.

4. Tighten all bolts securely.

Assembly

5. Separate the male and female halves of the drive shaft. Apply heavy grease to the telescoping portion
of the male drive shaft; recouple the drive shaft.

6. Remove both bolts from the clutch hub. Slide the hub onto the input shaft of the gearbox. Be certain
that the lock pin snaps into the groove on the input shaft of the gearbox. Remove 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 on the hub. Reinstall the lock bolts and tighten securely. Re-

torque lock bolts on all models every hour for the rst eight hours of use. Failure to do so will

result in decreased life of the clutch hub and gearbox shaft splines.

7. Slide aluminum bell shield and bell shield clamp over drive shaft and attach bell shield to
mounting plate with the clamp. Adjust clamp as needed to assure proper attachment.

Warning! The driveline shield and bell shield must be kept in good operating condition.
Failure to maintain safety shields can result in injury or death.

19

8. Check the drive shaft for proper length:

a. Hitch the mower to the tractor.

b. Lift the mower to the tractor’s maximum lift position.
c. Measure the distance from the PTO of the tractor to the input shaft of the mower’s gear

box.
d. With the drive shaft compressed (pushed together fully), measure the overall length of the
shaft.
e. If the length of the compressed drive shaft is greater than the length between the PTO and
input shaft, then the drive shaft must be shortened to the latter length. Please note

that equal amounts must be removed from each section of the drive shaft.

20

Operation

Before hitching mower to your tractor, make sure all safety devices are installed on both the mower

and the tractor.

Please follow all safety instructions and procedures.

STOP

Attach Equipment to Tractor.

Be sure the tractor is equipped with the correct category hitchpins, top link, etc. Be

extremely careful when positioning tractor to hitch to the equipment.

Caution! Never allow anyone between the tractor and the equipment during the hitching
process.

Be certain that the mower has been lubricated properly and check oil level in gear box prior to con-

necting driveline to tractor (See Page 24). Also, do not tighten the top link such that the ex-link
toggle is fully extended toward the tractor. The ex-link should be in a relaxed position when on

level ground.

Attach the driveline to the tractor. When attaching driveline to PTO shaft, be certain that the quick-

disconnect pin is properly seated in the groove of the tractor’s PTO shaft.

Warning! A loose driveline could 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 mower
has ceased before making adjustments.

Caution! Avoid very low cutting heights. Striking the ground with blades causes a damaging shock
that can damage both the mower and the tractor.

Using the tailwheel adjustment and the tractor’s lift arms, set the mower to the desired height; the mower

is designed to operate with a cutting height range between 2” and 12”. Note that, on level ground,

the front of the mower should be 1” below the rear (see illustration). Set the tractor’s lift stop at
the required position to maintain a uniform cut. The exible toggle should be in a relaxed posi-

tion, note Figure “A”.

Figure “A”

Front

1” above front

Operation

Starting Mower

Power for operating the mower is supplied from the tractor PTO. Refer to your tractor manual for

instructions on engaging and disengaging the PTO.

Warning! Do not operate this mower unless the tractor has a live, or independent, PTO. The

momentum created by the blade carrier can push the tractor forward unexpectedly.

Warning! Operate mower only with the specied PTO RPM. Brown 400 Series mowers are de-

signed to operate at 540 RPM; however, a 1000 RPM design is an option.

Operating Speed

Proper operating speed for equipment will depend upon the height, density, and type of the material to

be cut. Regardless of chosen ground speed, always operate the PTO at the recommended RPM
when cutting.

21

General Operation

Warning! Avoid personal injury. Remove all rocks and other debris from work area before cut-

ting.

Observe the following guidelines when operating the mower:

• Do not back the mower into material, as this may bend

the mower deck.

• Never lower the mower onto material.

• Avoid tight turns near trees or stationary objects. The deck

may be damaged by side impact.

Remember: The safe operation of this equipment is the responsibility
of the operator. The operator should be familiar with both the trac­tor and the equipment. He must read and understand all applicable

operator manuals and follow all safety practices.

Warning! Avoid personal injury. Never operate machine around bystanders. Always maintain a

distance of at least 300 feet.

22

Maintenance

Safety When Working Under Mower Deck

Never work under the mower deck until:

• the mower is sufciently braced and supported

• the tractor engine is off, brake is set, and key is removed

• PTO has been disengaged

• driveline is disconnected

• rear tractor tires have been secured with tire chocks

• the mower is cooled

Danger! Failure to follow these safety guidelines will result in serious injury or death.

Initial Maintenance

Warning! These maintenance practices must be followed every hour for the rst eight hours of
operation; the practices must also be performed every hour for the rst eight hours following the

removal/replacement of any of the components named in this section. Check daily thereafter.

1. Tighten the bolts holding the slip clutch to the input shaft of the gearbox.

Caution! Failure to tighten the keeper bolts will shorten the life of the slip clutch hub.

2. Check for debris deposited between the blade bar and the blades. Debris found jamming or lock­ing the blades must be removed to insure that the blade may pivot freely on the blade bolt.

Danger! Failure to maintain freely pivoting blades will cause severe vibration or blade breakage
which will result in injury or death. Blades that are bent or deformed may not pivot and must be
replace.

3. Tighten blade bolts and blade bar nut. See tightening blade bolt section on Page 23.

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 for debris deposited around the output shaft or tailwheel axle.

5. Tighten gearbox mounting bolts.

Caution! Failure to keep the gearbox bolts tightened can cause the blades to strike the bottom of
the mower deck or break the output shaft of the gearbox.

Maintenance

Daily Maintenance

1. Repeat all steps listed under the “Initial Maintenance” section on a daily basis after the initial
maintenance has

been performed.

2. Lubricate the driveshaft tubes and U-joint.

3. Lubricate the tailwheel hub.

4. Check and maintain the proper amount of lubricant in the gearbox. The recommended lubri-

cant for the gearbox is cottonpicker spindle grease.

5. Check the blades; sharpen or replace as necessary.

Warning! Use only blades and blade bolts supplied by Brown Manufacturing Corporation. Only
Brown has access to the engineering and test data necessary to produce a high-quality blade that meets
all safety and quality requirements.

Warning! If the blades must be sharpened, follow the proper safety procedures listed on page 22
of this manual for working under the mower deck.

23

Tightening Blade Bolts

Tighten blade bolts each hour for the rst eight hours of use; tighten daily thereafter. Repeat hourly
inspections each time the blades are removed/replaced.

Danger! Blade bolts will stretch with use and must be tightened. Allowing blade bolts to run
loose will damage bottom of blade carrier and will lead to jammed blades. Loose or jammed blades
can and will cause serious injury or death.

1. Disengage PTO; be certain that all rotation has stopped.

2. Lift mower high enough to place suitable supports under the mower deck.

3. Turn tractor engine off; remove key; lock transmission and brakes; chock rear wheels.

4. Disconnect driveline.

5.

Use a pipe wrench to hold the blade bolt; torque blade bolt nut using a 1 11/16” 6 point socket to approxi­mately 600 to 700 ft./lbs. Blades must pivot freely after tightening; check for jammed blades.

6. Remove blade bar cotter pin and tighten nut with a 1½” socket. Torque nut to 700 ft./lbs.; con-

tinue to torque until cotter pin hole aligns with nut. Install a new cotter pin. Never loosen nut to

align cotter pin hole; always tighten to next alignment slot.

Warning! Failure to keep blade bolts tight can and will cause: blade breakage; warping of blade
bar; ejection of blade from mower. These hazards can cause serious injury or death.

If blade bolts are allowed to run loose, the obvious danger is for the bolt to come completely loose,
allowing the blade, bolt, and nut to be ejected from the mower.

(continued on next page)

24

Maintenance

Tightening Blade Bolts (continued)

The second danger is that when the bolt is not sufciently tight, the blade is allowed excess vertical

movement when it strikes an object, be it something it will cut or something into which it should not

come in contact. In this situation, the blade is being hammered against the blade carrier and exed,
or bent, up around the edge of the blade carrier at least twelve (12) times per second, generally fteen

(15) times per second. This situation will cause the blade to break from fatigue and to be ejected from
the mower.

The third danger is that, while
the second situation is ocurring, 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 t.

When this damage occurs, the blade
bolt will pull up into the indention
when the bolt is tightened, causing
the blade to jam so that it can no lon­ger pivot on the blade bolt. A jammed
blade will break either from fatigue or
from catostrophic occurance and will
allow the blade to be ejected. A blade carrier damaged in this manner must be taken out of service im­mediately. Repair the blade carrier (contact Brown Mfg. Corp. for instructions) and replace the blades
and blade bolts before returning the machine to service.

All three of the described occurances will cause the blades to break and be ejected. An ejected
blade can and will cause serious injury or death.

REMEMBER: Blades must pivot freely and blade bolts must be tight!

Proper Gearbox Lubrication

On level ground, remove the 1/8” (lower) pipe plug from the rear of the gearbox housing. If the oil
level is not at the 1/8” port, oil must be added. Remove the 1/2” (upper) vent plug from the housing
and add the recommended lubricant (cottonpicker spindle grease) until the oil level reaches the lower
port. Make certain both plugs are replaced and tightened securely before operating.

Maintenance

Slip Clutch Adjustment

Check the slip clutch regularly; tighten the spring bolts if necessary. When tightening clutch bolts,
torque the bolt nuts in sequence, as illustrated. Incrementally torque each bolt nut until each clutch
spring measures 1” to 1-1/32” in length.

1 8

6 3

25

4 5

7 2

26

Maintenance

Maintenance/Repair Log

Please record all maintenance and repair services performed on the mower. This log may help identify
reoccuring problems with your mower and may be requested by the manufacturer when making war­ranty claims. Additional log pages may be copied or ordered from Brown Mfg. Corp.

Date Function Part(s) Involved Initials

Initial Maintenance

· 1

¸ 2

st

Hour

nd

Hour

¹ 3rd Hour

º 4th Hour

th

» 5

Hour

¼ 6th Hour

th

½ 7

Hour

¾ 8th Hour

slip clutch, gearbox, blades, blade
bolts, blade bar nut

Maintenance

Maintenance/Repair Log (continued)

Date Function Part(s) Involved Initials

27

28

Troubleshooting

Problem Possible Cause(s) Possible Solution(s)

Excessive vibration 1. Loose gearbox bolts

2. Loose blade bar and/or blade bolts

3. Blades are not freely swinging

4. Broken, bent, or warped blades

5. Blade bar not seated properly on
shaft

6. Blades not paired by weight

Excessive clutch slippage 1. Worn clutch linings or plates

2. Oil on lining

3. Glazed friction lining

4. Excessive force on clutch

5. Dull Blades

Overheating gearbox 1. Insufcient lubricant level

2. Improper lubricant

3. Debris build-up around gearbox

4. Bearing or gears set improperly

Noisy gearbox 1. Rough gears

2. Worn bearings

3. Insufcent lube level

1. Tighten bolts

2. Tighten blade bar nut or blade bolt nuts

3. Clear blade of obstruction or repair
blade carrier (see page 21)

4. Replace set of blades and bolts

5. Remove blade bar; clean hub and
shaft; reseat

6. Check blades for equal weight

1. Repair clutch

2. Replace linings

3. Clean with emory cloth

4. Reduce ground speed, material intake,
or tractor size

5. Resharpen or replace

1. Fill to full level

2. Replace with correct lubricant

3. Remove debris

4. Consult dealer

1. Run for a short break-in period or
replace gears

2. Replace bearing

3. Add lube.

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. Shaft bore worn in casting

7. Damaged gasket

8. Loose bolts

Short blade life 1. Cutting too low

2. Cutting in sandy or rocky condi-

tions

3. Inadequate blades

4. Ground speed too fast

Not cutting clean 1. Dull blades

2. Insufcient PTO speed

3. Cutter not level

4. Ground speed too fast

5. Blades are not freely swinging

6. Low engine RPM

1. Replace seal

2. Replace seal and shaft

3. Replace seal

4. Drain oil to proper level

5. Replace shaft

6. Replace casting or gearbox

7. Replace gasket

8. Tighten bolts.

1. Increase cutting height

2. Increase cutting height

3. Replace with Brown blades

4. Slow ground speed

1. Sharpen or replace blades

2. Use correct PTO speed

3. Adjust cutter

4. Reduce ground speed

5. Clear blade of obstruction

6. Increase tractor RPM

Specications

29

Cutting

Model Gearbox

460 120 HP 60” 1 5 900 lbs. 2-disc Category I/II

472 120 HP 72” 1 5 1060 lbs. 2-disc Category I/II

472D 120 HP 72” 2 5 1180 lbs. 2-disc Category I/II

484 120 HP 84” 2 6 1375 lbs. 4-disc Category II

Standard Features

Reinforced round-back deck design

All welded, 7 ga. (3/16”) steel deck

2 free-swinging blades, 1/2” x 4” high-tensile, updraft

Flexible, 3-point A-frame with clevis-style hitch

Width Tailwheels

Driveshaft

Size Weight

Slip

Clutch Hitch

2” to 12” cut height

1 : 1.46 gear ratio

7 ga. (3/16”) round disc stump jumper with 1” x 5” bar

1/4” x 2” replaceable steel slides (M-484: 3/8” x 2”)

Replaceable front & rear rubber deectors

Options Part No.

For 460: 4-007

Front 5/16” chain curtain deector

Rear 5/16” chain curtain deector

For 472: 4-009
For 484: 4-011

For 460: 4-008
For 472: 4-010
For 484: 4-012

30

Tailwheel Assembly

Replacement Parts

Replacement Parts

Tailwheel Assembly (continued)

Ref. No. Part No. Description

1 67-S Spacer (pair)

2 64-T Seal (2 req. per tailwheel)

3 65-T Bearing (2 req. per tailwheel)

4 65-C Cup (2 req. per tailwheel)

31

5 67T

67T-A

6 4-024 Height adjustment pin with clips

7 4-014

4-015
4-016

8 4-032 Complete tailwheel assembly

9 61-D Roll pin

10 61-C Collar

11 4-013 Fork

12 4-033 Axle

13 4-034 Axle nut

16 69-A Tire and wheel assembly

Tailwheel hub only with cups and lug bolts
Complete tailwheel hub assembly

460: Tailwheel arm with fork holder
472: Tailwheel arm with fork holder
472D, 484: Tailwheel arm with fork holder

32

Deck Assembly

Replacement Parts

Ref. No. Part No. Description

1 232-0028 Bell Shield Assembly

3 235-0001 120 HP gearbox

4 4-021

4-022

4-023 (NLA)

5 TC-133KL Blade bolt assembly

6 500-27A

4-029A

7 4-001S

4-002S

4-003S

460: Stump jumper

472, 484 after s/n 1192: Stump jumper

484 through s/n 1192: Stump jumper (use 4-022 with 4-029A blades)

460, 472, 484 through s/n 1192: Blade

484 after s/n 1192: Blade

460: Metal strap

472: Metal strap

484: Metal strap

Replacement Parts

Deck Assembly (continued)

Ref. No. Part No. Description

33

8 4-001

4-002

4-003

9 4-004

4-005

4-006

10 4-007

4-009

4-011

11 4-008

4-010

4-012

12 TC2-009

TC2-010

13 4-007C

4-008C

4-009C

4-010C

4-011C

4-012C

460: Rubber front deector

472: Rubber front deector

484: Rubber front deector

460: Rubber rear deector

472: Rubber rear deector

484: Rubber rear deector

460: Chain front deector

472: Chain front deector

484: Chain front deector

460: Chain rear deector

472: Chain rear deector

484: Chain rear deector

Front chain links (5 pcs.)

Rear chain links (4 pcs.)

460: Front cable with clamps

460: Rear cable with clamps

472: Front cable with clamps

472: Rear cable with clamps

484: Front cable with clamps

484: Rear cable with clamps

14 4-035A

4-030A

4-031A

15 DH-1254A Spacer

16 4-025

4-025B

17 4-095

4-095S

TC-126

18 4-017

4-018

19 4-026

4-027

4-028

20 4-019

4-020

21 4-004S

4-005S

4-006S

460: Deck

472: Deck

484: Deck

460: Category I toggle

472, 484: Category II toggle

460, 472: Category I/II lift pin with spacer & lynch pin

460, 472: Lift pin spacer

484: Category II lift pin with lynch pin

460, 472: A-frame

484: A-frame

460: A-frame brace

472: A-frame brace

484: A-frame brace

460, 472: Slide with plow bolts, lock washer, and nuts

484: Slide with plow bolts, lock washer, and nuts

460: Metal strap

472: Metal strap

484: Metal strap

Not pictured 500-021

500-022

Not pictured TC-126A 7/16” lynch pin

460: Category I top pin with lynch pin

472, 484: Category II top pin with lynch pin

34

Replacement Parts

120HP Gearbox

NOTE: Gearbox for all cutters having a serial number with second character

being a “B”: Example: 5B-XXXX

Ordering replacement parts

Please contact the nearest Brown dealer for replacement parts. They will be able to meet most of your
equipment needs.

Replacement Parts

120HP Gearbox (continued)

Ref. No. Part No. Qty. Description

1 235-0003 1 Housing

2 MLW10 8 M10 Lock Washer

3 MCS10C30 8 M10 X 1.5 X 30 Hex Head Cap Screw

4 235-0004 1 Input Cap

5 235-0005 1 Input Shaft

6 WHD-202-20 1 Input Oilseal

7 235-0006 2 Spacer

8 235-0007 1 19 Tooth Gear, Input

9 235-0008 VAR Input Cap Gasket (0.15)

10 235-0009 VAR Input Cap Gasket (0.25)

11 235-0010 VAR Input Cap Gasket (0.45)

35

12 235-0023 VAR Shim (0.40)

13 235-0024 VAR Shim (0.30)

14 235-0025 VAR Shim (0.50)

15 235-0026 VAR Output Cap Gasket (0.15)

16 235-0027 VAR Output Cap Gasket (0.25)

17 235-0028 VAR Output Cap Gasket (0.45)

18 MLW12 4 M12 Lockwasher

19 MCS12C38 4 M12 x 1.75 x 38 Hex Head Cap Screw

20 TC-134F 1 1” - 14 Flanged Hex Nut

21 TC-135 1 Cotter Pin

22 TC-010 1 2 1/2” Blade Hub

23 235-0013 1 Output Oilseal

24 235-0014 1 Output Cap

25 235-0015 1 Output Shaft

26 235-0016 2 Bearing Assembly

27 235-0017 1 13 Tooth Gear, Output

28 235-0018 2 Bearing Assembly

29 235-0019 1 Retaining Ring

30 235-0020 3 Sealing Washer

31 235-0021 2 M18 Drain Plug

32 235-0022 1 M18 Vent Plug

36

Replacement Parts (Driveline)

Ref. No. Part No. Description

1 4-050

TC-304
TC-304A

2 4-051

TC-305

3 4-052

TC-306

4 TC-307 Roll key

5 4-053

TC-309A

6 4-054

TC-311A

7 TC-312 Roll key

8 4-055

TC-313

9 484QDK Pin kit

Not pictured 4-056

4-057
4-057-1000

460, 472: Quick-hitch yoke
484 (540 RPM): Quick-hitch yoke
484 (1000 RPM): Quick-hitch yoke

460, 472: U-joint kit
484: U-joint kit

460, 472: Outer tube yoke
484: Outer tube yoke

460, 472: Outer tube
484: Outer tube

460, 472: Inner tube
484: Inner tube

460, 472: Inner tube yoke
484: Inner tube yoke

460, 472: Drive shaft (front section)
484 (540 RPM): Drive shaft (front section)
484 (1000 RPM): Drive shaft (front section)

Not pictured 4-058

4-059

Not pictured B472-20

B484
B484-1000

Driveline Safety Shield

460, 472: Drive shaft (rear section)
484: Drive shaft (rear section)

460, 472: Complete drive shaft
484 (540 RPM): Complete drive shaft
484 (1000 RPM): Complete drive shaft

Part No. Description

4-073
4-093

460, 472: Complete shield assembly
484: Complete shield assembly

Replacement Parts

2-Disc Slip Clutch (460, 472)

4-Disc Slip Clutch (484)

37

Ref. No. Part No. Description

1 4-074

4-075

Not pictured 4-090 Nut for spring bolt

2 4-076 Backing plate

3 4-078 Spacer

4 T5-W20 Clutch lining

5 4-081

TC-330

4-082

6 4-084

7 4-085 Bushing

8 4-086

9 4-087

4-088

10 4-089 Spring

Not pictured 4-091-20

4-092

460, 472: Bolt

484: Bolt

Bolt with washer & lock nut (2 req.)

460, 472: Tapered bolt with nut (1. req.)

484: Tapered bolt with nut (1 req.)

484: Hub (1-3/4” x 20 spline)

484: Hex plate

460, 472: Rear ange yoke

484: Rear ange yoke

460, 472: Complete slip clutch assembly

484: Complete slip clutch assembly

Ordering replacement parts

Please contact the nearest Brown dealer for replacement parts. They will be able to meet most of your
equipment needs.

M-400 Series B

Version 2.1.2

August 2008