Bradco 330 Product manual

800-922-2981 I www.paladinbrands.com P.O. Box 266, Delhi, IA 52223-0266, United States of America
SERIAL NUMBER: ___________________ Manual Number: OM749
Part Number: 75649
MODEL NUMBER: ___________________ Rev.
OPERATOR’S AND PARTS
MANUAL
330 TRENCHER
CAT. I 3-POINT HITCH
11102 8-8-08

TABLE OF CONTENTS
11163 8-8-08
PREFACE..............................................................................................................................................................3
SAFETY PRECAUTIONS
SAFETY STATEMENTS ........................................................................................................................... 5
GENERAL SAFETY PRECAUTIONS....................................................................................................5-7
EQUIPMENT SAFETY PRECAUTIONS ...............................................................................................8-9
DECALS
DECAL PLACEMENT.............................................................................................................................10
DECALS ............................................................................................................................................ 11-12
PREOPERATION
HYDRAULICS ........................................................................................................................................13
PREPARING THE TRACTOR ................................................................................................................ 13
OPTIONS ...............................................................................................................................................13
NOMENCLATURE..................................................................................................................................14
INSTALLATION
MOUNTING INSTRUCTIONS ...........................................................................................................15-17
WEIGHT AND BALANCE .......................................................................................................................17
POWER (PTO) SHAFT ADjUSTMENT..................................................................................................18
OPERATING INSTRUCTIONS
CONTROLS.......................................................................................................................................19-21
OPERATION......................................................................................................................................22-29
DIGGING CHAIN OPTIONS ..........................................................................................................................31-43
mAINTENANCE AND SERVICE
LUBRICATION........................................................................................................................................44
HYDRAULIC SYSTEM...........................................................................................................................45
DRIVE CHAIN ADjUSTMENT ...............................................................................................................45
DIGGING CHAIN REMOVAL..................................................................................................................46
HEADSHAFT ASSEMBLY SERVICE ................................................................................................47-48
GEARBOX SERVICE ............................................................................................................................. 48
BOOM END IDLER REMOVAL ..............................................................................................................48
PTO DRIVE ASSEMBLY SERVICE........................................................................................................49
CYLINDER SEAL REPLACEMENT ..................................................................................................50-51
REmOVAL AND STORAGE ...............................................................................................................................52
TROUBLESHOOTING...................................................................................................................................53-55
SPECIFICATIONS
BOLT TORQUE SPECIFICATIONS........................................................................................................56
330 TRENCHER SPECIFICATIONS ......................................................................................................57
LImITED wARRANTY ........................................................................................................................................ 59
PARTS
TRENCHER ASSEMBLY...................................................................................................................60-63
30” BOOM AND CRUMBER ASSEMBLY..........................................................................................64-65
36” BOOM AND CRUMBER ASSEMBLY..........................................................................................66-67
HEADSHAFT ASSEMBLY.................................................................................................................68-69
OPTIONAL VALVE ASSEMBLY.........................................................................................................70-71
DRIVE SHAFT ASSEMBLY - SERVICE PARTS ...............................................................................72-73
CYLINDER ASSEMBLY.....................................................................................................................74-75
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2
75649

PREFACE
10344 8-20-05
GENERAL COMMENTS
Congratulations on the purchase of your new BRADCO product! This product was care-
fully designed and manufactured to give you many years of dependable service. Only minor
maintenance (such as cleaning and lubricating) is required to keep it in top working condition.
Be sure to observe all maintenance procedures and safety precautions in this manual and on
any safety decals located on the product and on any equipment on which the attachment is
mounted.
This manual has been designed to help you do a better, safer job. Read this manual
carefully and become familiar with its contents.
WARNING! Never let anyone operate this unit without reading the "Safety Precautions"
and "Operating Instructions" sections of this manual.
Always choose hard, level ground to park the vehicle on and set the brake
so the unit cannot roll.
Unless noted otherwise, right and left sides are determined from the operator’s control
position when facing the attachment.
NOTE: The illustrations and data used in this manual were current (according to the
information available to us) at the time of printing, however, we reserve the right to rede-
sign and change the attachment as may be necessary without notication.
BEFORE OPERATION
The primary responsibility for safety with this equipment falls to the operator. Make
sure the equipment is operated only by trained individuals that have read and understand this
manual. If there is any portion of this manual or function you do not understand, contact your
local authorized dealer or the manufacturer.
SAFETY ALERT SYMBOL
This is the "Safety Alert Symbol" used by this industry. This symbol is used to
warn of possible injury. Be sure to read all warnings carefully. They are included
for your safety and for the safety of others working with you.
SERVICE
When servicing your product, remember to use only manufacturer replacement parts.
Substitute parts may not meet the standards required for safe, dependable operation.
To facilitate parts ordering, record the model and serial number of your unit in the space
provided on the cover of this manual. This information may be obtained from the identication
plate located on the product.
The parts department needs this information to insure that you receive the correct parts
for your specic model.
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4
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10338 8-16-05
SAFETY STATEMENTS
DANGER
GENERAL SAFETY PRECAUTIONS
WARNING! READ MANUAL PRIOR TO INSTALLATION
Improper installation, operation, or maintenance of this equipment could result in
serious injury or death. Operators and maintenance personnel should read this man-
ual, as well as all manuals related to this equipment and the prime mover thoroughly
before beginning installation, operation, or maintenance. FOLLOW ALL SAFETY
INSTRUCTIONS IN THIS MANUAL AND THE PRIME MOVER’S MANUAL(S).
READ AND UNDERSTAND ALL SAFETY STATEMENTS
Read all safety decals and safety statements in all manuals prior to operating or
working on this equipment. Know and obey all OSHA regulations, local laws, and
other professional guidelines for your operation. Know and follow good work
practices when assembling, maintaining, repairing, mounting, removing, or operating
this equipment.
KNOW YOUR EQUIPMENT
Know your equipment’s capabilities, dimensions, and operations before operating.
Visually inspect your equipment before you start, and never operate equipment that
is not in proper working order with all safety devices intact. Check all hardware to
ensure it is tight. Make certain that all locking pins, latches, and connection devices
are properly installed and secured. Remove and replace any damaged, fatigued, or
excessively worn parts. Make certain all safety decals are in place and are legible.
Keep decals clean, and replace them if they become worn or hard to read.
WARNING
CAUTION
THIS SIGNAL WORD IS USED WHERE SERIOUS INJURY OR DEATH
WILL RESULT IF THE INSTRUCTIONS ARE NOT FOLLOWED PROPERLY.
THIS SIGNAL WORD IS USED WHERE SERIOUS INJURY OR DEATH
COULD RESULT IF THE INSTRUCTIONS ARE NOT FOLLOWED PROPERLY.
THIS SIGNAL WORD IS USED WHERE MINOR INJURY COULD RESULT IF
THE INSTRUCTIONS ARE NOT FOLLOWED PROPERLY.
NOTICE INDICATES A PROPERTY DAMAGE MESSAGE.
NOTICE
THIS SYMBOL BY ITSELF OR WITH A WARNING WORD THROUGHOUT THIS MAN-
UAL IS USED TO CALL YOUR ATTENTION TO INSTRUCTIONS INVOLVING YOUR
PERSONAL SAFETY OR THE SAFETY OF OTHERS. FAILURE TO FOLLOW THESE
INSTRUCTIONS CAN RESULT IN INJURY OR DEATH.
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5

GENERAL SAFETY PRECAUTIONS
WARNING! PROTECT AGAINST FLYING DEBRIS
Always wear proper safety glasses, goggles, or a face shield when driving pins in or
out, or when any operation causes dust, ying debris, or any other hazardous mate-
rial.
WARNING! LOWER OR SUPPORT RAISED EQUIPMENT
Do not work under raised booms without supporting them. Do not use support mate-
rial made of concrete blocks, logs, buckets, barrels, or any other material that could
suddenly collapse or shift positions. Make sure support material is solid, not de-
cayed, warped, twisted, or tapered. Lower booms to ground level or on blocks. Lower
booms and attachments to the ground before leaving the cab or operator’s station.
WARNING! USE CARE WITH HYDRAULIC FLUID PRESSURE
Hydraulic uid under pressure can penetrate the skin and cause serious injury or
death. Hydraulic leaks under pressure may not be visible. Before connecting or dis-
connecting hydraulic hoses, read your prime mover’s operator’s manual for detailed
instructions on connecting and disconnecting hydraulic hoses or ttings.
•Keep unprotected body parts, such as face, eyes, and arms as far away as
possible from a suspected leak. Flesh injected with hydraulic uid may develop
gangrene or other permanent disabilities.
• If injured by injected uid, see a doctor at once. If your doctor is not familiar with
this type of injury, ask him to research it immediately to determine proper treat-
ment.
• Wear safety glasses, protective clothing, and use a piece of cardboard or wood
when searching for hydraulic leaks. DO NOT USE YOUR HANDS!
SEE ILLUSTRATION.
CARDBOARD
HYDRAULIC HOSE
OR FITTING
MAGNIFYING GLASS
10339 8-16-05
6
75649

GENERAL SAFETY PRECAUTIONS
10340 8-16-05
WARNING! DO NOT MODIFY MACHINE OR ATTACHMENTS
Modications may weaken the integrity of the attachment and may impair the func-
tion, safety, life, and performance of the attachment. When making repairs, use only
the manufacturer’s genuine parts, following authorized instructions. Other parts may
be substandard in t and quality. Never modify any ROPS (Roll Over Protection
Structure) or FOPS (Falling Object Protective Structure) equipment or device. Any
modications must be authorized in writing by the manufacturer.
WARNING! SAFELY MAINTAIN AND REPAIR EQUIPMENT
•Do not wear loose clothing or any accessories that can catch in moving parts. If
you have long hair, cover or secure it so that it does not become entangled in the
equipment.
• Work on a level surface in a well-lit area.
• Use properly grounded electrical outlets and tools.
• Use the correct tools for the job at hand. Make sure they are in good condition for
the task required.
• Wear the protective equipment specied by the tool manufacturer.
SAFELY OPERATE EQUIPMENT
Do not operate equipment until you are completely trained by a qualied operator
in how to use the controls, know its capabilities, dimensions, and all safety require-
ments. See your machine’s manual for these instructions.
•Keep all step plates, grab bars, pedals, and controls free of dirt, grease, debris,
and oil.
• Never allow anyone to be around the equipment when it is operating.
• Do not allow riders on the attachment or the prime mover.
• Do not operate the equipment from anywhere other than the correct operator’s
position.
• Never leave equipment unattended with the engine running, or with this attach-
ment in a raised position.
• Do not alter or remove any safety feature from the prime mover or this attach-
ment.
• Know your work site safety rules as well as trafc rules and ow. When in doubt
on any safety issue, contact your supervisor or safety coordinator for an explana-
tion.
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11103 5-16-08
EQUIPMENT SAFETY PRECAUTIONS
WARNING! KNOW WHERE UTILITIES ARE
Observe overhead electrical and other utility lines. Be sure equipment will clear
them. When digging, call your local utilities for location of buried utility lines, gas,
water, and sewer, as well as any other hazard you may encounter.
WARNING! EXPOSURE TO RESPIRABLE CRYSTALLINE SILICA DUST
ALONG WITH OTHER HAZARDOUS DUSTS MAY CAUSE SE-
RIOUS OR FATAL RESPIRATORY DISEASE.
It is recommended to use dust suppression, dust collection and if necessary person-
al protective equipment during the operation of any attachment that may cause high
levels of dust.
WARNING! REMOVE PAINT BEFORE WELDING OR HEATING
Hazardous fumes/dust can be generated when paint is heated by welding, soldering
or using a torch. Do all work outside or in a well ventilated area and dispose of paint
and solvent properly. Remove paint before welding or heating.
When sanding or grinding paint, avoid breathing the dust. Wear an approved respira-
tor. If you use solvent or paint stripper, remove stripper with soap and water before
welding. Remove solvent or paint stripper containers and other ammable material
from area. Allow fumes to disperse at least 15 minutes before welding or heating.
OPERATING THE TRENCHER
PTO Operated Attachment: Rotating driveline contact can cause death. Do not oper-
ate without all driveline, tractor and equipment shields in place. Drivelines securely
attached at both ends. Driveline shields that turn freely on driveline
Block off work area from bystanders, livestock, etc. Stop operation if bystanders or
livestock enter the work area.
Operate only from the operator’s station.
Never drop a boom with a rapidly moving digging chain on the ground. The force of
the trencher may cause the vehicle to move suddenly and unexpectedly.
Use caution when operating on slopes. The natural vibration will cause the unit to
creep sideways downhill. Try to dig with trencher in a level position.
Do not adjust relief valve settings. Incorrect valve settings could result in equipment
damage and/or personal injury.
An operator must not use drugs or alcohol, which can change his or her alertness or
coordination. An operator taking prescription or over-the-counter drugs should seek
medical advice on whether or not he or she can safely operate equipment.
Before exiting the prime mover, lower the unit to the ground, turn off the prime
mover’s engine, remove the key and apply the brakes.
Do not use the trencher crumber bar or chain as a step when climbing in or out of
the prime mover.
Be alert to changes in the work area. Watch out for bystanders, changes in weather
and soil conditions.
Do not make sharp turns while trenching. Trencher could become wedged in the
trench and damaged.
Keep equipment and bystanders away from the trencher after it has been dug. The
weight could cause a cave in.
If chain becomes jammed, never attempt to free it while the unit is running. Stop the
unit, shut off the engine and review the situation.
•
•
•
•
•
•
•
•
•
•
•
•
•
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TRANSPORTING THE TRENCHER
When driving on public roads use safety lights, reectors, Slow Moving Vehicle signs
etc., to prevent accidents. Check local government regulations that may affect you.
Do not drive close to ditches, excavations, etc., cave in could result.
Do not smoke when refueling the prime mover. Allow room in the fuel tank for
expansion. Wipe up any spilled fuel. Secure cap tightly when done.
When transporting keep the trencher as low as the terrain will allow.
MAINTAINING THE TRENCHER
Before performing maintenance, lower the attachment to the ground, turn off the
engine, remove the key and apply the brakes.
Never perform any work on the attachment unless you are authorized and quali-
ed to do so. Always read the operator service manuals before any repair is made.
After completing maintenance or repair, check for correct functioning of the backhoe.
If not functioning properly, always tag “DO NOT OPERATE” until all problems are
corrected.
Worn, damaged, or illegible safety decals must be replaced. New safety decals can
be ordered from BRADCO.
Never make hydraulic repairs while the system is under pressure. Serious personal
injury or death could result.
Never work under a raised attachment.
Replace all safety shields and guards when done performing maintenance. Do not
operate trencher with protective equipment removed.
•
•
•
•
•
•
•
•
•
•
EQUIPMENT SAFETY PRECAUTIONS
11104 5-16-08
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9

DECAL PLACEMENT
11107 6-11-08
GENERAL INFORMATION
The following diagrams show the location of all the decals used on your attachment.
The decals are identied by their part numbers, with the reductions of the actual deals shown
on the following pages. Use this information to order replacements for lost or damaged decals.
Be sure to read all decals before operating the attachment. They contain information you need
to know for both safety and attachment longevity.
IMPORTANT: Keep all safety decals clean and legible. Replace all missing, illegible or dam-
aged safety decals. When replacing parts with safety decals attached, the safety decals must
also be replaced.
REPLACING SAFETY DECALS: Clean the area of application with a nonammable solvent,
then wash the same area with soap and water. Allow the surface to dry. Remove the backing
from the safety decal, exposing the adhesive surface. Apply the safety decal to the position
shown in the diagram, and smooth out any bubbles.
#4495
#4084
#4338
#4132
#4105 #41101
#40151
#40150
#40307
#4498
#40440
#4056
#40092
#41096
#41095
SERIAL TAG LOCATION
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DECALS
11108 6-13-08
WARNING
THIS GUARD COVERS
MOVING PARTS
UNDERNEATH. REMOVE
GUARD FOR SERVICE
ONLY. SEE SERVICE
MANUAL FOR SERVICE
INSTRUCTIONS.
PART #4495
WARNING! GUARDS REMOVED
DANGER STAND CLEAR
PART #4105
DANGER STAND CLEAR
PART #4286
DANGER! ROTATING DRIVELINE
(LOCATED ON PTO)
PART #4285
DANGER! SHIELD MISSING
(LOCATED ON INSIDE PTO SHAFT)
STAND CLEAR
PART #41101
STAND CLEAR
PART #4132
CHECK OIL LEVEL PART #41095
PTO SHAFT INSTALLATION
NOTE: CONTACT YOUR LOCAL DEALER FOR MODEL
NUMBER AND LOGO DECALS.
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11

DECALS
11109 6-13-08
PART #40440
CALL BEFORE
YOU DIG
PART #40151
WARNING! HIGH PRESSURE FLUID
PART #4498
DANGER!
PART #40150
WARNING! READ MANUAL
PART #40307
DANGER! GUARD MISSING
PART #4056
TOOTH SET-UP WARNING
MADE IN USA
PART #4338
MADE IN USA
PART #4084
GREASE 8 HOURS
12
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PREOPERATION
11105 8-8-08
330 TRENCHER
GENERAL INFORMATION
The 330 Trencher mounts directly to the 3-point hitch system on your tractor the same
as any other 3-point hitch attachment.
HYDRAULICS
The 330 trenchers are shipped with two 48” long hoses (with 6FJX ends) for connecting
to your tractor’s rear remote hydraulic system. Contact your local dealer to purchase adapters
and couplers to match up to your tractor’s hydraulic system.
PREPARING THE TRACTOR
The 330 trenchers can be mounted on 15-30 HP tractors equipped with Cat. I three
point hitch systems and rear remote hydraulics. The rear remote hydraulics must have a mini-
mum working pressure of 2250-2500 PSI. 540 RPM and rear PTO drive are also required.
NOTE: If rear remotes are NOT AVAILABLE for you tractor, an optional valve kit (#112573) can
be purchased.
Compatibility between trencher and tractor must be determined before installing the trencher
onto your tractor’s three point hitch system. Contact your local dealer to determine if your trac-
tor is compatible with the 330 trencher.
A front counterweight (either weights or a front end attachment such as a loader or doz-
er blade) may be necessary for proper transporting and operation of the tractor and trencher. A
minimum of 20% of the gross vehicle weight must be on the tractor’s front axle. (See “Weight
and Balance” in Trencher Installation section of this manual.)
OPTIONS
You may wish to dig a trench of a depth or width other than what your unit was originally
equipped to dig. The trencher can be tted with optional booms, digging chains, sprockets and
crumber assemblies to allow you to dig a variety of different sized trenches. The following chart
will give you an idea of the different trench depths and widths a properly equipped unit is ca-
pable of digging. For more detailed information on trencher options see Digging Chain Options
section of this manual.
TRENCH DEPTHS* TRENCH WIDTHS
30” 3.00” 4.50” 6” 8”
36” 3.00” 4.50” 6” 8”
*Trencher depths are given with the digging boom at an optimum 65° digging
angle and the skid shoe touching the ground. Trenches of various depths can
be made by varying the digging angle and raising the trencher up higher. These
methods are less efcient however.
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13

PREOPERATION
330 TRENCHER
11106 6-11-08
NOMENCLATURE
The purpose of this page is to acquaint you with the various names of the trencher com-
ponents. This knowledge will be helpful when reading through this manual or when ordering
service parts.
HEADSHAFT AUGER
CRUMbER bAR / SAFETY
RESTRAINT bAR
CRUMbER END
END IDLER
CRUMbER SHOE
TOOTH
DIGGING CHAIN
bOOM
MAINFRAME
3-POINT MOUNTING
SUPPORT bRACkET
GEARbOx
DRIvE CHAIN COvER
CYLINDER
CHAIN TENSION
ADjUSTMENT bOLT
PTO DRIvE
MANUAL STORAGE TUbE
14
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INSTALLATION
11110 8-8-08
GENERAL INFORMATION
The following instructions will help you to mount the trencher onto your tractor. The
trencher uses the 3-point hitch system for ease of installation, therefore if you have ever in-
stalled 3-point hitch equipment before, installing the trencher should prove no problem.
Your tractor must be equipped with rear remote auxiliary hydraulics for trencher opera-
tion. Prior to installing the trencher you must install the appropriate hydraulic couplers onto the
trencher hoses for your application. Remember to read all safety warnings, decals, and oper-
ating instructions before operating the tractor or trencher.
IMPORTANT: A front counterweight may be necessary for proper transportation and op-
eration of the tractor and trencher. A minimum of 20% of the gross vehicle weight must
be on the tractor's front axle. (Refer to the information on Weight and Balance at the end
of this section.)
MOUNTING INSTRUCTIONS
1. If you have not done so already, remove the steel shipping banding from around the
trencher and skid.
2. Install the PTO drive assembly to the trencher by sliding the clutch end of the PTO drive
assembly onto the shaft.
3. Following the proper start up and backing procedures as noted in your tractor operator's
manual, back the tractor up to the rear of the trencher and skid.
4. Adjust the tractor's 3-point hitch system to accept the trencher. Continue backing the
tractor up to the trencher and then attach the trencher by positioning the lower links onto
the trencher's hitch pins. Secure with klik pins #57496.
NOTE: Since the trencher is fairly heavy, we recommend you position the lift links of
the lower links in the position offering the greatest lift capabilities. If there is more than
one hole in the lower link, position the lift link in the rear most hole.
5. Position the top link of the tractor in place between the ears of the 3-point mounting
bracket. Use the mounting hole in the linkage that will allow ALL THREE 3-POINT
LINKS TO RUN PARALLEL. Secure the top link using the hitch pin #82963 and klik pin
#21169 provided. Adjust the top link so the 3-POINT MOUNTING BRACKET REMAINS
VERTICAL, (perpendicular to the ground). See Figure #1
FIGURE #1
Okay for digging. Okay for transport. Too much Too low. Too much
bend for PTO operation. bend for PTO operation.
75649
15

INSTALLATION
11111 8-8-08
6. Adjust the lower link anti-sway chains and center the trencher.
7. Complete the hydraulic plumbing by connecting the hydraulic couplers together.
NOTE: The auxiliary hydraulics on your tractor operates the trencher cylinder and is
used to lower the trencher into the ground or raise it up for transport.
WARNING! Escapinguidunderpressurecanhavesufcientforcetopenetratethe
skin causing serious personal injury. Fluid escaping from a very small hole
can be almost invisible. Use a piece of cardboard or wood, rather than
hands to search for suspected leaks.
Keep unprotected body parts, such as face, eyes, and arms as far away as
possiblefromasuspectedleak.Fleshinjectedwithhydraulicuidmay
develop gangrene or other permanent disabilities.
 Ifinjuredbyinjecteduid,seeadoctoratonce.Ifyourdoctorisnotfamil-
iar with this type of injury, ask him to research it immediately to determine
proper treatment.
NOTE: When connecting trencher to tractor, route the hydraulic hoses as far away as
possible from the operator. Also use care to route away from sharp corners and from
dragging on the ground. (When disconnecting trencher from tractor either plug, cap or
connect hose ends to keep system free from contaminants.)
8. With the hydraulics hooked up, raise the trencher and remove the skid.
NOTE: The trencher is shipped with the stand in the lowest position to help support the
trencher during shipping and to assist in installation onto the tractor. Once the trencher
has been installed onto your tractor, lock the stand up (in the highest position) to pre-
vent interference during operation.
9. Lower the trencher to the ground. Disconnect the top link from the tractor and tilt the
trencher away from the tractor. (It may also be necessary to raise the trencher into the
extreme UP position to gain sufcient clearance to connect PTO drive assembly to trac-
tor.)
10. Turn the tractor engine off and set the parking brake.
NOTE: To protect PTO shaft and operator, the up travel must be limited to keep at least
3"of the two halves of the PTO shaft together. To assist the operator in maintaining this
limitation measure in 3"from the telescopic tube on the trencher half of the PTO shield
and make a permanent mark around the diameter. (Refer to PTO shaft adjustment.)
11. Connect the PTO drive assembly to the tractor.
16
75649

INSTALLATION
11112 6-11-08
12. Adjust 3-point lever upper stop to limit the travel to a point where trencher will clear the
ground sufcient for transport and still keep at least 3" of shaft telescoped together.
13. Start the tractor and raise the trencher boom UP. Operate the 3-point hitch lifts to de-
termine if its capacity is sufcient and all points work properly. Observe hydraulic hoses
for correct routing as 3-point moves up and down. Adjust tractor (see tractor operator's
manual) to limit rate of drop of 3-point to a safe speed.
Trencher installation is now complete. Read all safety warnings, decals, and operating instruc-
tions before operating the trencher.
WEIGHT AND BALANCE
After you have completed the mounting procedures, a very important item to complete
before releasing for use is weight distribution for steering control. Tractor front attachments
such as a loader or blade may be sufcient, however, you must know. Industry recommended
practice states that 20% of the gross vehicle weight should remain on the front axle during
transport conditions.
To perform this check, weigh the entire machine with attachments, both front and rear in
transport position. Record results. Next weigh each axle separately and record results.
Example A: GVW 2650 lbs
Front 600 lbs
Rear 2050 lbs
2650 X 20% =530 lbs - recommended front axle weight
You have 600 lbs which exceeds the 530 necessary to meet industry recommended practice.
Example B: GVW 3275 lbs
Front 595 lbs
Rear 2860 lbs
3275 X 20% =655 lbs - recommended front axle weight
You have 595 which is 60 lbs less than the recommended 655 lbs. You will need to add 75 lbs
to the front axle to attain the industry recommended practice weight distribution.
This is calculated as follows: Old GVW = 3275 lbs New GVW add 75 lbs = 3350
3350 X 20% = 670 lbs - recommended front axle weight
You may use weights or tire ballast to accomplish you goal.
75649
17

INSTALLATION
11113 5-19-08
POWER (PTO) SHAFT ADJUSTMENT
CAUTION FAILURE TO HAVE THE REQUIRED DISTANCE OF CLEARANCE WILL DAM-
AGE THE POWER TAKE OFF (PTO) OF YOUR TRACTOR.
.50"
TOP LINK
PTO DRIVE
ASSEMBLY
TRACTOR
 Thetrencherpower(PTO)driveassemblymayneedtobeshortenedtotuptoyour
tractorcorrectlyandtopreventthedriveassemblyfrom“bottomingout”andcausingextensive
damage to the tractor PTO drive assembly.
The shaft assembly is shortest when the shaft is straight inline with the trencher.
Thereshouldbeaminimumof.50"offreetravelbeforetheshaftisfullyretracted.Tocheck:
a. Lowerthetrencheruntiltheshaftisparalleltothegroundandisstraightinlinewiththe
trenchergearbox.
b. Checktoseeifthereisaminimumof.50"freetravel.
Ifthereisnotatleast.50"offreetravelDONOTOPERATETRENCHER.
NOTICE: IF THE DRIVE SHAFT “BOTTOMS OUT” BEFORE IT IS STRAIGHT INLINE
WITH THE TRENCHER, STOP AND CALL YOUR NEAREST DEALER OR THE
TRENCHER MANUFACTURER BEFORE TRENCHER OPERATION.
FULLY
RETRACTED .50” FREE TRAVEL
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75649