Brown Products Trench Master R450H Owner's manual

REDEFINER
R450H
R450HA
WIREMASTER
R460HA
CONVERSION KITS
460-001 WIREMASTER
459-001 EDGER
12/2009

ReDefiner/WireMaster Mole/ReDefiner Edger Kit Manual
INTRODUCTION
You are now the owner of a Brown TRENCHMASTER®.
The term TRENCHMASTER®is used throughout this
manual to include the following products: R450H, HA
ReDefiner, R460HA WireMaster “Mole” and the
ReDefiner Edger Kit. The TRENCHMASTERS® are very
versatile trenchers which, when properly equipped,
will trench in almost any soil condition. The
TRENCHMASTER®is an inexpensive alternative to the
much heavier, more bulky and less maneuverable
trenchers on the market.
This TRENCHMASTER® is manufactured by Brown
Products, Inc. which has been developing and
producing quality farm equipment, right-of-way
maintenance equipment, and outdoor power
equipment since 1943. Brown Products is proud of the
reputation it has earned for quality products and
customer service.
If you have any questions or problems with your
TRENCHMASTER®, please contact your dealer or
distributor. If they cannot answer your questions or
solve your problem, feel free to call.
376 County Road 563 • Midland City, AL 36350
[phone] • Fax: [phone]
http://www.brownproducts.com

TABLE OF CONTENTS
Warranty………………………………………………………3
Supplemental Warranty………………………………..4
Owner Registration……………………………………….6
Safety…………………………………………………………….9
Operating Instructions…………………………………..11
Scheduled Maintenance………………………………..13
Troubleshooting…………………………………………….14
Parts Lists & Drawings:
ReDefiner…………………………………………15
WireMaster Mole Kit & Edger Kit……..17
WireMaster Mole…………………………….19
Installation & Operation Instructions:
WireMaster Mole Kit……………………….21
ReDefiner Edger Kit………………………….22

4
WARRANTY STATEMENT
STATEMENT OF POLICY
In accordance with our established policy of constant improvement, we reserve the right to amend these
specifications at any time without notice.
ENGINE WARRANTY
Warranty of all engines and engine parts is the sole responsibility of the particular engine manufacturer. See engine
warranty in the engine manual. Engine problems must be checked and approved for warranty by an authorized
engine manufacturer’s service center. Brown Products, Inc. is not an authorized service center for any engine
manufacturer and accepts no responsibility for engine warranties, either express or implied.
WARRANTY BY MANUFACTURER
Dealer/distributor understands and agrees that the manufacturer extends only the following warranty to its
customers. In the event dealer/distributor extends any additional warranty such as enlarging the scope or period of
warranty or undertaking a warranty of fitness for any particular purpose or obligation not encompassed in
manufacturer’s warranty, dealer/distributor shall be solely responsible therefore and shall have no recourse against
manufacturer with respect thereto.
WARRANTY
LIMITED WARRANTY
Brown Products, Inc. hereby warrants that Brown’s TRENCHMASTER®products will be free from defects in material
and workmanship under normal use according to the provisions and limitations herein set forth. All parts,
specifically EXCLUDING expendable “wear” parts, that become unserviceable within one year (12 months) from
date of purchase, shall be repaired or replaced at Brown’s option – at no cost to purchaser.
LIMITATIONS
The obligation of Brown for breach of warrant shall be limited to products manufactured by Brown (1) that are
installed, operated and maintained according to Brown’s instruction furnished and/or available to the purchaser
upon request, (2) that are installed according to all other applicable Federal, State and local codes or regulations,
and (3) that the purchaser substantiates were defective in material and workmanship notwithstanding that they
were properly installed and correctly maintained as set forth and were not abused or misused. The obligation of
Brown shall be limited to replacing or repairing the defective product, at the option of Brown. Brown shall not be
responsible for any labor or cost of removal or re-installment of its products and shall not be liable for
transportation costs to and from its plant in Midland City, Alabama. Use of parts for modification or repair of
TRENCHMASTERS®or any component part thereof not authorized or manufactured by Brown specifically for the
TRENCHMASTERS®shall void this warranty. This warranty shall not apply to any damage to or defect in
TRENCHMASTERS®that is directly or indirectly caused by (1) FORCE MAJEURE, Act of God or other accident not
related to an inherent product defect, of (2) abuse, misuse or neglect of the TRENCHMASTER®, including any
damage caused by improper assembly, installation, service maintenance or faulty instruction of the purchaser.
Other than as expressly set forth hereinabove, Brown makes no other warranty, express or implied, with respect to
the TRENCHMASTER®, including but not limited to any warranty of merchantability or fitness for a particular
purpose. And in no event shall Brown be responsibility 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 the TRENCHMASTER®. Any
person or entity to whom this warranty extends and who claims breach of warranty against Brown must bring suit
thereon within one year from the date of occurrence of such breach of warranty or be forever barred from any and
all legal or other remedies for such breach of warranty. Brown is not responsible for and hereby disclaims any
undertaking, representation or warranty made by any dealer, distributor or other person that is inconsistent with or
in any way more expansive that the provisions of this limited warranty. This warranty grants specific legal rights and
shall be read in conformity with applicable state law. In some jurisdictions, the applicable law mandates warranty
provisions that provide greater rights than those proved for herein. In such case, this limited warranty shall be read
to include such mandates provisions; and any provision herein that is prohibited or unenforceable in any such
jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions and without affecting the validity or enforceability of such provisions in any
other jurisdiction(s).

5
R450H & HA REDEFINER
SUPPLEMENTAL WARRANTY STATEMENT
The Brown R450H & HA ReDefiner is designed for the
maintenance of existing beds only. It is not intended
for new bed construction. Use of the R450H & HA on
new beds voids all warranties!
Operating the ReDefiner with an unbalanced rotor
creates destructive vibrations and operations should
cease immediately if this occurs. Determine what is
causing the unbalanced issue and correct by removing
debris buildup on the rotor or replace with a new
balanced rotor. One missing rotor tooth will be cause
for changing the rotor.
Use of any part not manufactured by Brown Products,
Inc. will void all warrantees. The use of a re-
manufactured rotor will also void the warranty.

6
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7
TrenchMaster® Owner’s Warranty Card
Name ___________________________________ Model ________________________________
Address _________________________________ Serial Number _________________________
City/State _______________________________ Date Purchased ________________________
Phone __________________________________ TrenchMaster® Dealer ___________________
E-Mail __________________________________
IMPORTANT: TO PLACE THE BROWN WARRANTY INTO EFFECT, THIS
WARRANTY CARD MUST BE COMPLETED AND MAILED WITHIN 30
DAYS AFTER RECEIVING THIS EQUIPMENT.
376 County Road 563 Midland City, AL 36350
Phone: [phone] Fax: [phone]
http://www.brownproducts.com
For additional information and inquiries, please contact:

8
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9

10
WARNING
SAFETY PRECAUTIONS
WARNING: Engine exhaust from this product contains chemicals known, in
certain quantities, to cause cancer, birth defects, or other reproductive harm.
DO NOT assemble TRENCHMASTER®before reading assembly instructions.
DO NOT start TRENCHMASTER®before reading operating instructions.
DO NOT modify TRENCHMASTER®in any way.
DO NOT operate without all shields in place.
DO NOT operate without eye protection. Goggles are provided with each TRENCHMASTER®.
DO NOT lift trencher off the ground until engine is switched off and rotor has stopped.
DO NOT drop the TRENCHMASTER®to the ground from truck tailgate or bed of trailer.
DO NOT operate unless safety area is clear of people, animals, vehicles, and glassed areas that
may be damaged by possible projectiles. (See Soil & Debris Exhaust chart showing area of
possible projectiles, pg 10.)
DO NOT begin operation until all underground pipes, electrical and communications lines and
sprinkler lines have been located and marked. The utility companies will be glad to provide
information on their facilities. A ruptured gas line or cut electrical cable may cause injury or
death.
DO NOT place hands or feet near belts or rotor mechanisms while engine is running.
DO NOT operate TRENCHMASTER®without wearing proper shoes (high top leather shoes or
boots are recommended).
DO NOT allow bystanders or spectators to be within 50 feet of TRENCHMASTER®while
engine is running. (See Soil & Debris Exhaust chart showing areas of possible projectiles, pg
10.)
DO NOT operate TRENCHMASTER®until all surface obstructions have been cleared from
area. All rocks and debris should be removed from area.
DO NOT disconnect oil alert on engines. To do so may void your engine warranty.

11
TRENCHMASTER®
SOIL & DEBRIS EXHAUST CHART

12
OPERATING INSTRUCTIONS
Brown TRENCHMASTER®
BEFORE STARTING ENGINE
1. Check machine.
a. Read and be familiar with equipment operating instructions.
b. Be sure you have the proper rotor for trench size and soil conditions.
c. Check rotor retaining nut for tightness.
d. Be sure belts and pulleys are properly aligned and adjusted.
e. Check hood mounting bolts and nuts for tightness.
f. Check set screws in pulleys and lock collars for tightness.
g. Check all other nuts and bolts for tightness.
h. Check Clutch Cable tension. Tension is adjusted using the turnbuckle so that the
clutch spring stretches approximately ¾” to 1” when clutch in engaged.
2. Check machine
CAUTION: NEW ENGINES SHIPPED WITH MACHINES ARE NOT SERVICED.
ADD OIL TO CRANKCASE BEFORE STARTING.
WARNING: Gasoline is extremely flammable and highly explosive under
certain conditions. Always stop the engine and do not refill tank while you are
smoking or near open flame or sparks.
WARNING: Never start or run the engine while in an area where fumes
may collect. Carbon Monoxide from the exhaust is an odorless and deadly gas
which must have adequate space or ventilation to allow rapid dispersal.
a. Be familiar with manufacturer’s operating and safety instructions for engine.
b. Check oil level with dipstick and add if necessary. Do not overfill.
c. Check air filter and clean if necessary. Clean frequently if operating in dusty
conditions.
d. Use only clean fuel. Unleaded fuel is recommended in all engines.
e. Be sure muffler and exhaust deflector are installed, are in proper position, and are
in good operating condition. (Deflector should exhaust to the left, away from the
air intake.)
3. Start engine
a. Be sure clutch lever is in disengaged position and no tension is on drive belts.
b. Turn ignition switch to “ON” position.
c. Turn fuel on.
d. Close choke if engine is cold.
e. Pull start cord rapidly.

13
Starting Engine Continued
f. When engine starts, gradually open choke and let engine warm up at about ¼
speed.
WARNING: Do not operate machine without rotor hood installed and
secure.
WARNING: Do not operate the machine within a 50’ radius of people,
animals, automobiles or glassed areas which might be damaged by projectiles.
WARNING: Operator must wear eye protection when operating the
TRENCHMASTER®.
WARNING: Operator must locate and stay clear of all underground gas,
electric, water and communications lines before starting trenching operation.
CALIFORNIA PROPOSITION 65 WARNING: Engine exhaust from this product contains
chemicals known to the State of California to cause cancer, birth defects, or other
reproductive harm.
4. Operations
a. To start trenching, set throttle full open. Before engaging the clutch lever, the
handle must be pushed toward the ground enough to allow the rotor to turn
without hitting the ground. Engage clutch and when rotor attains operating speed,
the handle should be raised slowly so that the rotor engages the ground and
gradually digs to trench depth.
b. When trench depth is achieved, the operator should pull the machine to the rear
at such a speed that the trencher will dig without overloading the engine.
WARNING: Starting the trench is the most critical time for dangerous flying
projectiles. Be especially cautious by policing the area for rocks or other possible
projectiles and ensure the area is completely clear of people, animals, vehicles,
etc. that may be damaged by projectiles.
c. When trenching, if trencher strikes an underground object, stop immediately to
determine what the object is. Investigation should be done visually since touching
an exposed electric wire could be fatal.
d. When trencher strikes a rock, either the trench or rock should be moved.
e. When digging in extremely hard clay or other difficult soils, it may sometimes be
necessary to use an oscillating action by applying and releasing pressure on
handlebar, front to rear, alternately.

14
SCHEDULED MAINTENANCE
Good maintenance practices are critical if you are to enjoy trouble free operation and long life
from your Brown TRENCHMASTER®. Most required maintenance procedures are shown in
this section. However, other common sense maintenance practices such as cleanliness and
storage must be followed.
1. See Manufacturers operating and maintenance instructions for engine maintenance
procedures.
2. Check all bolts and nuts for tightness before operation and periodically thereafter.
3. Check all set screws in belt pulleys and bearing lock collars before operation and
periodically thereafter. If set screws are vibrating loose, Locktite’s Threadlocker #242
should be applied to the threads and the set screw retightened.
4. Check drive belts for proper tension before operation. Adjust if necessary. Adjust belt
tension using the turnbuckle to ensure the spring stretches approximately ¾” to 1”. Keep
belt free of dirt and grease at all times.
5. Rotor points must be checked for wear before operation and periodically thereafter.
Check at least every 200 feet initially. When working in difficult soil conditions, they
should be checked more often. In good soil conditions, they may be checked less often but
never less than each 500 feet of trenching.
6. Check rotor bearings for wear every 2000 feet. This is done by lifting the front of the
machine off the ground so that the rotor may be turned by hand. Then grasp the end of
the rotor firmly and try to move it from side to side. If there is more than ¼” movement
from side to side, the bearings must be replaced.
7. Check the idler pulley for wear before operation and replace if necessary.
8. Periodically check the idler arm for lateral movement. If the pivot bolt is badly worn, or
the bolt is loose, the idler arm may have enough lateral movement to cause the belts to
come off the pulley. The pivot belt should be tight enough to prevent lateral movement,
but not so tight that it restricts free pivoting of the idler arm.

15
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
Burning Belts Improper tension on belts Adjust belt tension using the turnbuckle on
the clutch cable. Spring should stretch
approximately ¾” to 1” when clutch lever is
fully engaged.
Pulleys not aligned Align pulleys
Pulleys worn excessively Replace pulleys
Pulleys broken or burrs on Replace pulleys
pulley
Wrong type belt Replace with Kevlar belts
Excessive Rotor bearings worn Replace bearings
vibration excessively
Rotor points broken or Replace points or rotor
missing
Rotor bent Replace rotor
Rotor striking Rotor too close to hood Loosen eccentric lock collars on spindle and
move rotor away from hood.
CAUTION: Use thread lock on all set screws
and tighten securely.
Rotor bent Replace rotor
Pulleys coming Pulley set screw not tight Remove set screws and apply thread lock to
off shaft set screws, then tighten very firmly.

16
TrenchMaster Model R450H & R450HA ReDefiner
Parts List
Ref #
Part #
Description
# Req'd
1
450-001
Frame
1
2
450-002
Handlebar
1
3
450-003
Assembly, Rotor Arm with Bearings & Spacer
1
4
450-251
Bracket, Idler Arm
1
5
450-024
Stop, Belt, Engine Pulley
1
6
450-253
Plate, Hood Back
1
7
450-752
Brush
1
8
450-503
Channel, Brush
1
9
991-05
Arm, Idler
1
10
12-22-2A
Pulley, Double Idler
1
11
991-06
Spring, Idler Arm Return
1
12
780-30
Belt, 31" Kevlar, Model R450H Only, 3.5" O.D. Pulley
2
12
450-767
Belt, 33" Kevlar, Model R450HA Only, 4.5" O.D. Pulley
2
13
701-02-2
Pulley, Engine
1
14
230-0002
Stop, Belt
1
15
450-502
Spindle, Rotor w/Nut
1
16
450-501
Pulley, Double Rotor, Model R450H Only, 3.5" O.D.
1
16
450-768
Pulley, Double Rotor, Model R450HA Only, 4.5" O.D.
1
17
450-758
Key, 3/16" x 3/16" x 3/4" Long, Rotor Pulley
1
18
450-751
Bearing, Rotor
2
19
450-004
Bearing, Spacer
1
20
450-765
Washer, 3/4" SAE Rotor Spindle (against each bearing)
2
20A
450-766
Flatwasher, 3/4" (against back of rotor)
1
21
Not Sold Seperately
Engine, Honda GX160
1
22
450-259
Clutch Lever, Over Center
1
22
450-504
Lever, Clutch, Black
1
23
701-25
Grip, Handle
2
24
450-770
Cable, Clutch, For over Center Handle
1
24
450-754
Cable, Clutch w/Clevis & Turnbuckle, Black Lever
1
25
701-24A
Spring, Clutch
1
26
12-09
Pin, Sheave w/Cotter Pin
1
27
701-06A
Nut, 5/8" Nylon Lock
2
28
702-27B
Bearing, 5/8" Wheel (2 per wheel)
6
29
702-50C
Wheel, Pneumatic w/ 5/8" Bearing
3
30
450-007
Hood w/ Drape
1
31
450-005
Strap, Hood Drape Flap
1
33
450-753
Drape, Hood
1
34
450-755
Nut, Height Adjuster Wing - 5/8"
1
35
450-764
Bolt, Front Axle - 5/8" x 4"
1
36
450-756
Rivet, Hood Drape
10
37
450-757
Washer, Rivet Back-up
10
38
450-100
Rotor, 4" Redefining
1
39
450-507
Point, Rotor ( 2 1/4" straight)
N/A
40
450-762
Assembly, Front Axle (Bolt, Nuts, Washers & Wing Nut)
1
41
450-023
Stop, Belt, Rotor Pulley, Model R450H Only, 3.5" O.D.
1
41
450-025
Stop, Belt, Rotor Pulley, Model R450HA Only, 4.5" O.D.
1
42
450-763
Stop, Idler Arm, 5/16" x 3 1/2 " NF Bolt
1

17

18
WireMaster Mole Kit 460-001
Parts List
Ref #
Part #
Description
# Req'd
43
460-503
Knob, Up/Down Adjustment
44
460-007
Rod, Ground
1
45
460-008
Bracket, Front, Up-Down
1
46
460-004
Bracket, Drape Retainer
1
47
460-010
Clamp, Wire Spool Bracket
1
48
460-013
Bracket, Wire Spool Mount
1
49
460-014
Tube, Wire Conduit, PEX
1
50
702-78
Strap
1
51
460-505
Clip, 10mm
1
52
460-009
Bracket, Pex, Tube
1
53
460-504
Clip, 12 mm
1
54
460-252
Hood, Back Plate
1
55
460-501
Drape, Hood
1
56
460-251
Brace, Outside
1
57
460-002
Rotor, WireMaster
1
54 & 55
460-015
Assembly, Hood with Drape
1
ReDefiner Edger Kit 459-001
Parts List
Ref #
Part #
Description
# Req'd
58
E-200-025
Flap, Rubber
1
59
459-004
Extension, Blade Guard
1
60
459-003
Guard, Blade
1
61
459-002
Blade, 10 inch
1
62
459-005
Spacer, Blade Guard
2

19

20
WireMaster Mole Model R460HA
Parts List
Ref #
Part #
Description
# Req'd
1
450-001
Frame
1
2
450-002
Handlebar
1
3
450-003
Assembly, Rotor Arm with Bearings & Spacer
1
4
450-251
Bracket, Idler Arm
1
5
450-024
Stop, Belt, Engine Pulley
1
6
460-252
Hood, Back Plate
1
7
450-752
Brush
1
8
450-503
Channel, Brush
1
9
991-05
Arm, Idler
1
10
12-22-2A
Pulley, Double Idler
1
11
991-06
Spring, Idler Arm Return
1
12
780-30
Belt, 31" Kevlar, Model R450H Only, 3.5" O.D. Pulley
2
12
450-767
Belt, 33" Kevlar, Model R450HA Only, 4.5" O.D. Pulley
2
13
701-02-2
Pulley, Engine
1
14
230-0002
Stop, Belt
1
15
450-502
Spindle, Rotor w/Nut
1
16
450-501
Pulley, Double Rotor, Model R450H Only, 3.5" O.D.
1
16
450-768
Pulley, Double Rotor, Model R450HA Only, 4.5" O.D.
1
17
450-758
Key, 3/16" x 3/16" x 3/4" Long, Rotor Pulley
1
18
450-751
Bearing, Rotor
2
19
450-004
Bearing, Spacer
1
20
450-765
Washer, 3/4" SAE Rotor Spindle (against each bearing)
2
20A
450-766
Flatwasher, 3/4" (against back of rotor)
1
21
Not Sold Separately
Engine, Honda GX160
1
22
450-259
Clutch Lever, Over Center
1
22
450-504
Lever, Clutch, Black
1
23
701-25
Grip, Handle
2
24
450-770
Cable, Clutch, For over Center Handle
1
24
450-754
Cable, Clutch w/Clevis & Turnbuckle, Black Lever
1
25
701-24A
Spring, Clutch
1
26
12-09
Pin, Sheave w/Cotter Pin
1
27
701-06A
Nut, 5/8" Nylon Lock
2
28
702-27B
Bearing, 5/8" Wheel (2 per wheel)
6
29
702-50C
Wheel, Pneumatic w/ 5/8" Bearing
3
30
702-78
Strap
1
31
460-009
Bracket, Pex, Tube
1
32
460-251
Brace, Outside
1
33
460-501
Drape, Hood
1
34
450-755
Nut, Height Adjuster Wing - 5/8"
1
35
450-764
Bolt, Front Axle - 5/8" x 4"
1
36
460-504
Clip, 12mm
1
37
460-505
Clip, 10mm
1
38
460-002
Rotor, WireMaster
1
39
450-507
Point, Rotor ( 2 1/4" straight)
N/A
40
450-762
Assembly, Front Axle (Bolt, Nuts, Washers & Wing Nut)
1
41
450-025
Stop, Belt, Rotor Pulley, Model R450HA Only, 4.5" O.D.
1
42
450-763
Stop, Idler Arm, 5/16" x 3 1/2 " NF Bolt
1
43
460-503
Knob, Up/Down Adjustment
2
44
460-007
Rod, Ground
1
45
460-008
Bracket, Front, Up/Down
1
46
460-004
Bracket, Drape Retainer
1
47
460-010
Clamp, Wire Spool Bracket
1
48
460-013
Bracket, Wire Spool Mount
1
49
460-014
Tube, Wire Conduit, PEX
1
54
460-252
Hood, Back Plate
1
6 & 33
460-015
Assembly, Hood with Drape
1