Bush Hog 2165 User Manual
Operator’s Manual
MODELS 2165 / 2175 / 2185 / 2195
ASSEMBLY • OPERATION • MAINTENANCE
BACKHOES
703
$4.00
50033329
BUSH HOG,L.L.C.
®
CONGRATULATIONS!
You have invested in the best implement of its type on the market today.
The care you give your Great Bend implement will greatly determine your satisfaction
with its performance and its service life. We urge a careful study of this manual to provide
you with a thorough understanding of your new implement before operating, as well as
suggestions for operation and maintenance.
If your manual should become lost or destroyed, Great Bend will be glad to provide you with
a new copy. Order from Great Bend, P. O. Box 1039, Selma, Alabama 36702-1039.
As an authorized Great Bend dealer, we stock genuine Great Bend parts which are
manufactured with the same precision and skill as our original equipment. Our trained
service personnel are well informed on methods required to service Great Bend equipment,
and are ready and able to help you.
Should you require additional information or assistance, please contact us.
YOUR AUTHORIZED
GREAT BEND DEALER
BECAUSE GREAT BEND MAINTAINS AN ONGOING
PROGRAM OF PRODUCT IMPROVEMENT, WE
RESERVE THE RIGHT TO MAKE IMPROVEMENTS IN
DESIGN OR CHANGES IN SPECIFICATIONS WITHOUT INCURRING ANY OBLIGATION TO INSTALL
THEM ON UNITS PREVIOUSLY SOLD.
BECAUSE OF THE POSSIBILITY THAT SOME
PHOTOGRAPHS IN THIS MANUAL WERE TAKEN OF
PROTOTYPE MODELS, PRODUCTION MODELS MAY
VARY IN SOME DETAIL. IN ADDITION, SOME
PHOTOGRAPHS MAY SHOW SHIELDS REMOVED
FOR PURPOSES OF CLARITY. NEVER OPERATE
THIS IMPLEMENT WITHOUT ALL SHIELDS IN PLACE.
BACKHOES
Operator’s Manual
TABLE OF CONTENTS
SECTION/PARA PAGE
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Dealer Preparation Check List . . . . . . . . . . . . . 3
Safety Procedures. . . . . . . . . . . . . . . . . . . . . . 5
Federal Laws and Regulations. . . . . . . . . . . . . 7
General Operation. . . . . . . . . . . . . . . . . . . . . . 8
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operating The Backhoe. . . . . . . . . . . . . . . . . . 9
Transporting The Backhoe. . . . . . . . . . . . . . . 10
Placing The Stabilizers . . . . . . . . . . . . . . . . . 11
Filling The Bucket . . . . . . . . . . . . . . . . . . . . . 12
Dumping The Bucket . . . . . . . . . . . . . . . . . . . 12
Trenching . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Back Filling . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Beginning Of Season. . . . . . . . . . . . . . . . . . . 14
Hydraulic System . . . . . . . . . . . . . . . . . . . . . 14
RETAIL CUSTOMER’S RESPONSIBILITY
UNDER THE GREAT BEND WARRANTY
It is the Retail Customer and/or Operator’s responsibility to read the Operator’s Manual, to operate, lubricate,
maintain, and store the product in accordance with all instructions and safety procedures. Failure of the operator to read the Operator’s Manual is a misuse of this equipment.
It is the Retail Customer and/or Operator’s responsibility to inspect the product and to have any part(s) repaired
or replaced when continued operation would cause damage or excessive wear to other parts or cause a safety
hazard.
It is the Retail Customer’s responsibility to deliver the product to the authorized Great Bend dealer from whom
he purchased it, for service or replacement of defective parts which are covered by warranty. Repairs to be submitted for warranty consideration must be made within forty-five (45) days of failure.
It is the Retail Customer’s responsibility for any cost incurred by the Dealer for traveling to or hauling of the
product for the purpose of performing a warranty obligation or inspection.
1
SECTION/PARA PAGE
Tooth Replacement 15
Lubrication 15
Removal / Storage 16
Stabilizer Pads 17
Hydraulic Trouble Shooting 17
Valve Repair 23
Assembly 24
Mounting Kit Instructions 25
PTO Pump Kits 30
Hydraulic Hook-Up To Tractor 31
Power Beyond Kit 35
Flow Divider Kit 38
General Specifications 42
Removing From Shipping Pallet 43
Safety Decals 44
Torque Specifications 45
Great Bend
LIMITED WARRANTY
✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯
Great Bend / Bush Hog L.L.C., warrants to the original purchaser of any new Great Bend equipment,
purchased from an authorized Great Bend dealer, that the equipment be free from defects in material and workmanship for a period of one (1) year for non-commercial, state, and municipalities’ use and ninety (90) days for
commercial use from date of retail sale. The obligation of Great Bend / Bush Hog L.L.C. to the purchaser under
this warranty is limited to the repair or replacement of defective parts.
Replacement or repair parts installed in the equipment covered by this limited warranty are warranted
for ninety (90) days from the date of purchase of such part or to the expiration of the applicable new equipment warranty period, whichever occurs later. Warranted parts shall be provided at no cost to the user at an
authorized Great Bend dealer during regular working hours. Great Bend reserves the right to inspect any equipment or parts which are claimed to have been defective in material or workmanship.
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMAGES
Great Bend’s obligation under this limited warranty, to the extent allowed by law, is in lieu of all warranties, implied or expressed,
INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE and any liability for incidental and consequential damages with respect to the
sale or use of the items warranted. Such incidental and consequential damages shall include but not be limited
to: transportation charges other than normal freight charges; cost of installation other than cost approved by
Great Bend; duty; taxes; charges for normal service or adjustment; loss of crops or any other loss of income;
rental of substitute equipment, expenses due to loss, damage, detention or delay in the delivery of equipment or
parts resulting from acts beyond the control of Great Bend.
THIS LIMITED WARRANTY SHALL NOT APPLY:
1. To transportation to and from dealership or service calls made by dealers, ie, driving time, towing, pickup
and delivery.
2. To vendor items which carry their own warranties, such as engines, tires, and tubes.
3. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
4. If parts not made or supplied by Great Bend have been used in connection with the unit, if, in the
sole judgement of Great Bend such use affects its performance, stability or reliability.
5. If the unit has been altered or repaired outside of an authorized Great Bend dealership in a manner
which, in the sole judgement of Great Bend, affects its performance, stability or reliability.
6. To normal maintenance service and normal replacement items such as gearbox lubricant, hydraulic fluid,
worn blades, or to normal deterioration of such things as belts and exterior finish due to use or
exposure.
7. To expendable or wear items such as teeth, chains, sprockets, belts, springs and any other items that in the
company’s sole judgement is a wear item.
NO EMPLOYEE OR REPRESENTATIVE OF GREAT BEND IS AUTHORIZED TO CHANGE THIS
LIMITED WARRANTY IN ANY WAY OR GRANT ANY OTHER WARRANTY UNLESS SUCH CHANGE IS
MADE IN WRITING AND SIGNED BY GREAT BEND’S SERVICE MANAGER, POST OFFICE BOX 1039,
SELMA, ALABAMA 36702-1039.
✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯✯
Record the model number, serial number and date
purchased. This information will be helpful to your
dealer if parts or service are required.
MAKE CERTAIN THE WARRANTY REGISTRATION
CARD HAS BEEN FILED WITH GREAT BEND/
SELMA, ALABAMA
MODEL NUMBER
SERIAL NUMBER
DATE OF RETAIL SALE
2
DEALER PREPARATION CHECK LIST
2165, 2175, 2185 and 2195 BACKHOES
BEFORE DELIVERING MACHINE - The following check list should be completed.
Use the Operator’s Manual as a guide.
❑ Machine properly assembled.
❑ All safety decals readable (See decal page).
❑ All bolts tightened to torque specifications given in the torque chart.
❑ Machine operates properly.
❑ Operator’s manual has been delivered to owner and he has been instructed
on the safe and proper use of the backhoe.
Dealer’s Signature
CAUTION:
It is recommended that the tractor be equipped with Rollover
Protection System (ROPS) and seat belt be used for all
implement operations.
.
It is the responsibility of the dealer to complete the procedures listed
above before delivery of this implement to the customer.
THIS CHECKLIST TO REMAIN IN OWNER’S MANUAL
3
Safety Alert Symbol
This Safety Alert Symbol means: “ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!”
This symbol is used to call attention to safety
precautions that should be followed by the
operator to avoid accidents. When you see this
symbol, carefully read the message that follows
and heed its advice. Failure to comply with safety precautions could result in death or serious
bodily injury.
Safety Signs Signal Words
The signal words DANGER, WARNING, AND CAUTION are used on the equipment safety signs. These words
are intended to alert the viewer to the existence and the degree of hazard seriousness.
This signal word indicates a potentially hazardous situation
which, if not avoided, will result in death or serious injury.
White letters on RED
This signal word indicates a potentially hazardous situation
which, if not avoided, could result in death or serious injury
It may also be used to alert against unsafe practices.
Black letters on ORANGE
This signal word indicates a potentially hazardous situation exist
which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices.
Black letters on YELLOW
4
IMPORTANT SAFETY PRECAUTIONS
This symbol is used to call attention to safety precautions that should be followed by
the operator to avoid accidents. When you
see this symbol, carefully read the message
that follows and heed its advice. Failure to
comply with safety precautions could result
in serious bodily injury.
In addition to the design and configuration of equipment, hazard control and accident prevention are dependent upon the
awareness, concern, prudence and proper training of personnel in the operation, transport, maintenance and storage of
equipment. Lack of attention to safety can result in accident, personal injury, reduction of efficiency and worst of all—loss
of life. Watch for safety hazards and correct deficiencies promptly. Use the following safety precautions as a general
guide to safe operations when using this machine. Additional safety precautions are used throughout this manual for
specific operating and maintenance procedures. Read this manual and review the safety precautions often until you know
the limitations.
THE TRACTOR
1. Read the tractor operator’s manual to learn how to operate your tractor safely. Failure to do so could result in serious injury or death and equipment damage.
2. It is recommended that tractor be equipped with Rollover Protective System (ROPS) and a seat belt be used for all
loader operations.
3. Add wheel ballast or front weight for stability.
4. Move wheels to the tractor manufacturer’s widest recommended settings to increase stability.
5. For better stability, use tractor with wide front axle rather than tricycle front wheels.
6. Move and turn the tractor at low speeds.
7. Stop tractor engine, place transmission in park (or neutral), engage parking brake, lower loader arms to ground,
cycle all hydraulic controls to relieve pressure, allow machine moving parts to stop, remove ignition key to prevent
unauthorized person from starting engine before dismounting tractor or servicing, repairing, or making adjustments
to the equipment.
8. Wear personal protective equipment (PPE) such as, but not limited to, protection for eyes, ears, lungs, head, hands
and feet when operating, servicing, or repairing equipment. Avoid wearing loose clothing or jewelry that may catch
and entangle on equipment moving parts.
THE BACKHOE
1. DO NOT operate the backhoe unless it is rigidly attached to the tractor or skid steer loader.
2. KNOW your controls. Read this operator’s manual and the manual provided with your tractor. Learn how to stop the
tractor, the engine and the backhoe quickly in an emergency.
3. PROVIDE adequate front end weight to counter-balance the backhoe at all times. 20% of the total tractor, loader and
backhoe weight must be on the tractor front axle. If unsure of weight distribution, determine at a weight scale. Total
vehicle weight , including backhoe and counter weights, must not exceed the ROPS certificate for gross vehicle weight.
4. BE SURE the area is clear of overhead or underground utilities or other hazards.
5. POSITION a barricade around the work area.
6. KEEP all bystanders a safe distance away.
7. DO NOT attempt to enter operator’s platform of backhoe by using the stabilizers as a step.
8. OPERATE from the backhoe operator’s seat only.
9. ALLOW only one person to operate the backhoe at any time.
10. DISENGAGE safety locks as shown in Figures 1 & 3 before attempting to operate the backhoe.
11. NEVER dig with the backhoe unless the stabilizers are properly set.
5
12. DO NOT dig under stabilizers or tractor backhoe. Soft ground or sandy soil can cause cave-ins.
13. KEEP BUCKET away from the stabilizer area to avoid possible stabilizer damage.
14. ALWAYS swing bucket uphill to dump when on a hillside and keep loaded bucket low.
15. SET BRAKES and block wheels when operating on hills and banks to avoid dangerous runaway.
16. WATCH for overhead wires. DO NOT touch wires with any part of the backhoe.
17. NEVER allow a person to work under a raised bucket.
18. NEVER lift a person with the backhoe.
19. DO NOT use the backhoe as a battering ram. Use the backhoe only for digging.
20. ALWAYS lower the backhoe bucket and stabilizers to the ground, shut off engine, and apply the parking brake
before getting off unit, or when not digging.
21. NEVER leave the tractor unattended with the engine running.
22. DO NOT attempt to raise the tractor off the ground or move the tractor forward or backward using the backhoe
dipperstick or bucket.
TRANSPORTATION
1. ALWAYS engage safety locks before transporting backhoe. See Figures 1 & 3.
2. DO NOT drive the tractor near the edge of a ditch or excavation.
3. ALWAYS use accessory lights and devices when transporting on a road or highway to warn operators of other
vehicles. Check your local government regulations.
4. BE SURE the SMV emblem is visible to the rear.
ADJUSTMENTS AND INSPECTION
1. CHECK pins that attach backhoe to tractor and all pivot pins for tightness several times daily. Replace any parts
that are bent, broken or missing.
2. ALWAYS engage safety locks before servicing backhoe. See Figures 1 & 3.
3. DO NOT oil, grease, or adjust the backhoe while it is in motion. For greasing, see Service section for details.
4. DO NOT change any backhoe relief valve settings. They are factory set for best backhoe performance and safety.
5. PROTECT YOUR EYES - WEAR SAFETY GLASSES.
6. GUARD AGAINST INJURY when driving connecting pins or performing any repair in which particles can chip from
work piece or striking tool.
7. DO NOT remove any guards on backhoe or tractor.
AVOID HIGH-PRESSURE FLUIDS
SAFETY PRECAUTIONS CONTINUED
6
ESCAPING fluid under pressure can have sufficient force to penetrate the skin
and cause serious injury. Be sure to stop engine and relieve all pressure before
disconnecting lines. Be sure all connections are tight and that lines, pipes, and
hoses are not damaged before applying pressure to the system. Fluid escaping
from a very small hole can be almost invisible. Use a piece of cardboard or wood
- not your hands-to search for suspected leaks.
SEE A DOCTOR at once if injured by escaping fluid. Serious infection or gan-
grene can develop if proper medical treatment is not administered immediately.
IMPORTANT FEDERAL LAWS AND REGULATIONS* CONCERNING
EMPLOYERS, EMPLOYEES AND OPERATIONS.
*(This section is intended to explain in broad terms the concept and effect of the following federal laws and
regulations. It is not intended as a legal interpretation of the laws and should not be considered as such).
U.S. Public Law 91-596 (The Williams-Steiger Occupational Safety and Health Act of 1970) OSHA
This Act Seeks:
“...to assure so far as possible every working man and woman in the nation safe and healthful working
conditions and to preserve our human resources...”
DUTIES
Sec. 5 (a) Each employer—
(1) shall furnish to each of his employees employment and a place of employment
which are free from recognized hazards that are causing or are likely to cause
death or serious physical harm to his employees;
(2) shall comply with occupational safety and health standards promulgated under
this Act.
(b) Each employee shall comply with occupational safety and health standards
and all rules, regulations and orders issued pursuant to this Act which are
applicable to his own actions and conduct.
OSHA Regulations
Current OSHA regulations state in part: “At the time of initial assignment and at least annually thereafter, the
employer shall instruct every employee in the safe operation and servicing of all equipment with which the
employee is, or will be involved.” These will include (but are not limited to) instructions to:
Keep all guards in place when the machine is in operation;
Permit no riders on equipment;
Stop engine, disconnect the power source, and wait for all machine movement to stop before
servicing, adjusting, cleaning or unclogging the equipment, except where the machine must be
running to be properly serviced or maintained, in which case the employer shall instruct employees
as to all steps and procedures which are necessary to safely service or maintain the equipment.
Make sure everyone is clear of machinery before starting the engine, engaging power, or operating
the machine.
Child Labor Under 16 Years Old
Some regulations specify that no one under the age of 16 may operate power machinery. It is your
responsibility to know what these regulations are in your own area or situation. (Refer to U.S. Dept. of
Labor, Employment Standard Administration, Wage & Home Division, Child Labor Bulletin #102.)
EMPLOYEE TRACTOR OPERATING INSTRUCTIONS:
1. Securely fasten your seat belt 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 recom-
mended by tractor manufacturers.
9. When tractor is stopped, set brakes securely and
use park lock if available.
7
GENERAL OPERATION
CAUTION
To avoid possible injury,
observe the following
safety rules BEFORE
OPERATING the backhoe:
1. BE SURE area is clear of
underground utilities or
other hazards.
2. POSITION barricade
around work area.
3. PROVIDE adequate
front end weight to
counter-balance tractor at
all times. 20% of the total
tractor, loader and backhoe weight must be on the
tractor front axle.
4. Keep bystanders a safe
distance away.
DIRECTIONS: The terms right, left, front and back
shall be determined from the position of the operator
when seated in the operating position on the backhoe.
Engine Speed
The speed at which the backhoe operates is partially
dependent on engine RPM. Use a moderate engine
speed to start and increase it as your experience permits. Refer to “SPECIFICATIONS” for hydraulic flow
volume requirements. When powering from tractor
systems with higher output, reduce engine RPM to
obtain acceptable backhoe operating speed.
Boom
Dipper-Stick
Boom Transport
Lock Pin Location
Stabilizer
Bucket
Bucket
Link
Stabilizer Cylinder
Figure 1
CONTROLS
The backhoe has two major control levers plus the
stabilizer control levers. These controls are located on
the control console directly ahead of the operator. See
Figure 2. The following is a list of the controls, with the
function of each, reading from left to right.
1. Left Hand Stabilizer: Push lever forward, the LH
stabilizer lowers. Pull lever back, the LH stabilizer
raises.
2. Boom/Swing: Push lever forward, the boom
moves down, away from the operator. Pull lever back,
the boom moves up, toward the operator.
The Boom/Swing Control Lever has an added “float”
function. Adetent or stop should be felt when the lever
is pushed forward to move the boom down. Pushing
the lever forward more will overcome the detent and
cause the boom to float, or move down or up freely,
depending on the forces acting on it. When the lever
is released it should return to the center, neutral position.
Move lever to the left, the backhoe swings to the left.
Move lever to the right, the backhoe swings to the
right.
By moving the lever to one of the intermediate positions, the boom can be swung left or right at the same
time it is being raised or lowered, performing the two
operations simultaneously.
SWING LEFT AND LOWER the boom by moving the
control lever forward and to the left.
Mainframe
8
Left Hand Stabilizer
BOOM &
SWING
CROWD &
BUCKET
Right Hand Stabilizer
Swing
Lock Pin Location
Figure 2 Control Handles
SWING LEFT AND RAISE the boom by moving the
control lever back and to the left.
SWING RIGHT AND LOWER the boom by moving
the lever forward and to the right.
SWING RIGHT AND RAISE the boom by moving the
lever back and to the right.
3. Crowd/Bucket: Push lever forward, the dipperstick
moves out, away from the operator. Pull lever back,
the dipperstick moves in, toward the operator.
Move lever to left, the bucket curls in. Move lever to
right, the bucket extends out.
By moving the lever to one of the intermediate positions, the dipperstick can be extended or retracted at
the same time the bucket is being loaded or dumped.
EXTEND AND LOAD the bucket by moving the lever
forward and to the left.
RETRACT AND LOAD the bucket by moving the
lever back and to the left.
EXTEND AND DUMP the bucket by moving the lever
forward and to the right.
RETRACT AND DUMP the bucket by moving the
lever back and to the right.
The two operations of the boom/swing lever, combined with the two operations performed by the
crowd/bucket control lever, provide four simultaneous
operations from the two levers, keeping cycle time to
a minimum.
4. Right Hand Stabilizer: Push lever forward, the RH
stabilizer lowers. Pull lever back, the RH stabilizer
raises.
OPERATING THE BACKHOE
To avoid possible injury, observe the following
safety rules WHEN OPERATING the backhoe.
1. DISENGAGE safety lock pins as shown in
Figure 3 before attempting to operate the backhoe. Store lock pins in angled tubes located at the
rear right hand side of the backhoe below the foot
platform. See Figure 3a.
2. OPERATE from the backhoe operator’s seat
only.
3. LOWER the stabilizers until the rear of the tractor is totally supported by them. NOTE: Rear tires
should not
come up off of the ground. See dia-
gram on Page 11.
4. DO NOT dig near the stabilizers.
5. DO NOT touch overhead wires with any part of
the backhoe.
6. DO NOT attempt to raise the tractor off the
ground or move the tractor forward or backward
using the backhoe dipperstick or bucket.
7. DO NOT lose stability by swinging the bucket
downhill when positioned on a slope.
8. DO NOT lower the backhoe boom using the
“float” function. It will freefall, and could result in
injury to bystanders or damage to the backhoe.
9
CAUTION
In general, the direction of movement of a control
lever corresponds to the movement of the operating
member.
Figure 3 Safety Locks
Swing Lock Pin
Boom Transport Lock Pin
Figure 3a
Lock Pins
Storage Tubes
Smooth, light handling of the controls will result in the
most efficient backhoe operation.
Operate the backhoe control levers to become familiar with their speed and movements. The engine
speed and the size of the hydraulic system will determine the speed of cylinder operation. When powering
from tractor systems with higher output than required,
reduce engine RPM to obtain acceptable backhoe
operating speed. If backhoe is to be mounted to a
tractor or to a skid steer loader with a hydraulic flow
rate exceeding 12 gallons per minute (gpm), then the
backhoe must be equipped with a Flow Divider Kit.
Refer to “Flow Divider Kit” section of this manual for
assembly and installation instructions.
Swing the boom several times to practice controlling
the speed of swing. Do not operate the swing more
than 45° each way for the first few times, then gradually increase the arc.
IMPORTANT: To avoid damage to the backhoe, do
not slam unit into the rubber bumpers when
swinging the boom right or left.
The boom “float” function may be used during digging
to eliminate down pressure when cleaning the bottom
of a trench. The primary purpose of the boom “float”
function is to protect the operator from serious injury in
the event that the backhoe or tractor hitch would fail.
operator to save time in clearing the excavation.
This dual operation of controls will speed and simplify
the digging operation. Normally the two or more
movements will not be equal or even simultaneous,
but as the pressure within the cylinders changes, and
the resistance on an operating member of the hoe
lessens, it will begin to move. It is balancing the force
of one member against the other.
NOTE: Actuating the bucket is the key to powerful digging. Operating the crowd and bucket controls simultaneously will insure a full bucket and prevent waste
motion and time.
TRANSPORTING THE BACKHOE
IMPORTANT: To prevent serious damage to the
tractor, read and follow the instructions on the following decal:
Location: Right Side of Boom
10
It is not difficult to become an efficient operator.
Control lever operating decal is located on back of the
control console. Study this decal. It will assist you in
becoming familiar with the controls.
Best results are obtained by digging near the center
of the swing arc so material can be dumped on either
side.
As the operator becomes more familiar with the operation of the backhoe, it will be common practice to
operate two controls at one time. For example, with
the bucket extended and the dipperstick extended,
the lift control and crowd control can be operated
together to bring the bucket toward the operator with
down pressure on it. As the dipperstick approaches
the operator, the crowd and bucket controls can be
operated to close the bucket and trap the material. At
the end of the stroke, the lift and crowd controls are
operated to move the load up and away from the
Location: Back Of Control Panel
IMPORTANT
IMPROPER TRANSPORTING
METHODS CAN CAUSE SER-
IOUS DAMAGE TO TRACTOR.
•
ENGAGE BOTH SAFETY LOCKS
WHEN TRANSPORTING BACKHOE.
•
TRAVEL SLOWLY OVER ROUGH
TERRAIN.
•
WHEN TRANSPORTING ON TRUCK
OR TRAILER, LOWER BACKHOE
BOOM SO BUCKET RESTS
FIRMLY ON BED. APPLY
RESTRAINTS TO TRACTOR, NOT
TO BACKHOE OR BACKHOE
ATTACHING KIT.
50102295
CAUTION
To avoid possible injury, observe the following safety
rules when transporting the backhoe:
1. ALWAYS engage safety locks as shown on Figs. 1
and 3 when transporting backhoe.
2. TRAVEL SLOWLY over rough terrain, on hillsides,
and around curves to prevent tipping.
3. DO NOT drive the tractor near the edge of a ditch
or excavation.
4. USE accessory lights and SMV emblem when traveling on highways.
Before leaving backhoe operator’s seat, position the
backhoe for transport by raising boom, crowding dipperstick in, swinging to center and raising the stabilizers.
When transporting for long distances, periodically
examine the backhoe and raise stabilizers and bucket back up to the full transport height. It is normal for
the backhoe to slowly settle while being transported.
PLACING THE STABILIZERS
Decreased
Digging
Depth
Narrower
Stabilizer
Platform
Stabilizers Improperly Positioned
Stabilizers Properly Positioned
Set the stabilizers to remove weight from the rear wheels. The wheels are to remain touching the ground as this
provides for the widest stabilizer stance and the lowest center of gravity. Raising the wheels off the ground will
not only reduce stability and digging depth, but will impair performance and impose unnecessary stress on the
unit.
11
WHEN TRANSPORTING
Note:
Bucket should be
lowered to bed
when possible.
DO NOT attach hold down
chains anywhere on backhoe
assembly.
Block and secure
tractor only.
DO NOT CHAIN BACKHOE DOWN IN ORDER
TO SECURE TRACTOR TO TRAILER
CAUTION
Figure 4
General Operations
FILLING THE BUCKET
Control the bucket attitude throughout the digging cycle to
keep teeth at the proper angle for best penetration. This will
minimize dragging and scraping the bucket through the
ground.
When digging in hard-packed soil, bucket penetration can
be increased by applying down pressure with the boom
while crowding in and curling the bucket. If the crowd action
“stalls” it may be necessary to apply lift occasionally during
the digging cycle to correct the bucket depth.
To obtain a cleaner trench and avoid the buildup of material directly in front of the backhoe, crowd out and completely curl the bucket while starting to lift it from the excavation.
In this way, excess material will fall back into the excavation.
DUMPING THE BUCKET
To dump the bucket at the end of the digging cycle, lift the
bucket clear of the trench while crowding it out and swinging it to the spoil pile.
As the pile is approached, dump the bucket. When the
bucket is empty, the dipperstick and bucket are in position
to resume digging upon return to the trench.
IMPORTANT: Avoid constant jarring or hammering-type
contact between the spoil pile and the loaded bucket, as this
may cause premature wear to the backhoe pins and bushings.
TRENCHING BETWEEN A BUILDING AND
OPEN EXCAVATIONS
Start the trench at the building. Trench out halfway to the
excavation. Then start trenching from the excavation to the
first trench. Dig toward the first trench until there is just
enough room to move the unit out between the two trenches.
Position the unit so the backhoe swing post is over the centerline of the trench connection. Dig with the backhoe at
extreme swing positions, and in as close to the stabilizers
as possible. Pile the spoil on the opposite side of the trenches.
Position the unit forward with the lift and crowd levers so
the two trenches can be connected. Pile the spoil on the
opposite side of the trench.
12
General Operations
SIDE SLOPE EXCAVATING OR TRENCHING
Dig with the backhoe uphill whenever possible.
Level the backhoe on slopes with the stabilizers to dig
plumb trenches, or use the backhoe or loader to cut a level
slot for the uphill wheel and stabilizer. Pile the spoil from the
slot on the low side.
When on the side of a steep slope, cut a level surface along
the uphill side of the trench with the loader.
Pile the spoil of the cut downhill. When digging, pile the spoil
of the trench uphill.
Dig field trenches progressively. As soon as one trench is
completed, have the workmen lay the tile. Start the next
trench, using the spoil to fill the previous trench.
MISCELLANEOUS
When finishing straight walls or bellholes in sandy soil, use
a platform under the rear tires and the stabilizers. The platform distributes the load over a larger area and lessens the
possibility of a cave-in. The platform also tends to keep the
unit from creeping rearward if hard digging is encountered.
FINISHING STRAIGHT WALLS
Finish the far wall by crowding out while forcing the bucket
down from the boom. Actuate the bucket (curl out) to keep
the bottom of the bucket vertical.
To finish the near wall, lift up and crowd in. Keep the edges
of the bucket horizontal.
BACKFILLING
Backfill by lifting the bucket over the spoil pile and then
crowding in. Pull both the crowd and lift levers for smooth,
even backfilling.
IMPORTANT: Do not backfill by using the swing circuit
and dragging the bucket sideways. Doing so can cause
damage to the dipperstick, boom, or swing cylinders
and/or the mainframe.
13
Loading...