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Bush Hog RTH User manual

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ASSEMBLY ll OPERATION ll MAINTENANCE
207 $4.00 93777
BUSH HOG®
Models RTN, RTNR, & RTH
Rotary Tillers
OOppeerraattoorr’’ss MMaannuuaall
CONGRATULATIONS!
You have invested in the best implement of its type on the market today.
The care you give your Bush og 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, Bush og will be glad to provide you with
a new copy. Order from Bush og, P. O. Box 1039, Selma, Alabama 36702-1039. Most of
our manuals can also be downloaded from our website at www.bushhog.com.
As an authorized Bush og dealer, we stock genuine Bush og 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 Bush og equipment,
and are ready and able to help you.
Should you require additional information or assistance, please contact us.
YOUR AUT ORIZED
BUS OG DEALER
BECAUSE BUS OG MAINTAINS AN ONGOING
PROGRAM OF PRODUCT IMPROVEMENT, WE
RESERVE T E RIG T TO MAKE IMPROVEMENTS IN
DESIGN OR C ANGES IN SPECIFICATIONS WIT -
OUT INCURRING ANY OBLIGATION TO INSTALL
T EM ON UNITS PREVIOUSLY SOLD.
BECAUSE OF T E POSSIBILITY T AT SOME
P OTOGRAP S IN T IS MANUAL WERE TAKEN OF
PROTOTYPE MODELS, PRODUCTION MODELS MAY
VARY IN SOME DETAIL. IN ADDITION, SOME
P OTOGRAP S MAY S OW S IELDS REMOVED
FOR PURPOSES OF CLARITY. NEVER OPERATE
T IS IMPLEMENT WIT OUT ALL S IELDS IN PLACE.
Rotary Tillers Operator’s Manual
Models RTN, RTNR & RTH
TABLE OF CONTENTS
RETAIL CUSTOMER’S RESPONSIBILITY
UNDER THE BUSH HO 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 exces-
sive wear to other parts or cause a safety hazard.
It is the Retail Customer’s responsibility to deliver the product to the authorized Bush og
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 with-
in 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 PA E
Warranty . . . . . . . . . . . . . . . . . . . . . . . .2
Dealer Preparation Check List . . . . . . .3
Safety Precautions . . . . . . . . . . . . . . . .4
Federal Laws And Regulations . . . . . .5
I INTRODUCTION & DESCRIPTION . . .6
1-1 Introduction . . . . . . . . . . . . . . . . . .6
1-2 Description . . . . . . . . . . . . . . . . . . .6
II PREPARATION FOR USE . . . . . . . . .7
2-1 Attaching To Tractor . . . . . . . . . . .7
2-2 Offsetting itch Pins (RTN,RTNR) .8
III OPERATING INSTRUCTIONS . . . . . .9
3-1 General Safety . . . . . . . . . . . . . . . .9
3-2 Adjusting For Work . . . . . . . . . . . .9
SECTION / PARA PA E
3-3 Operation . . . . . . . . . . . . . . . . . . . .9
3-4 Transporting . . . . . . . . . . . . . . . . . .9
IV MAINTENANCE . . . . . . . . . . . . . . . . .10
4-1 Maintenance Check List . . . . . . . .10
4-2 Lubrication . . . . . . . . . . . . . . . . . .10
4-3 Blade Replacement . . . . . . . . . . .11
4-4 Slip Clutch Operational Check . . .11
4-5 Slio Clutch Adjustment . . . . . . . . .11
4-6 RTN, RTNR Chain Adjustment . . .11
4-7 Troubleshooting . . . . . . . . . . . . . .12
V DEALER ASSEMBLY . . . . . . . . . . . . .13
Safety Decals . . . . . . . . . . . . . . . . . . .15
Torque Specifications . . . . . . . . . . . . .16
LIMITED WARRANTY
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Bush og warrants to the original purchaser of any new Bush og equipment, purchased from an
authorized Bush og 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 Bush og 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 equip-
ment warranty period, whichever occurs later. Warranted parts shall be provided at no cost to the user at an
authorized Bush og dealer during regular working hours. Bush og reserves the right to inspect any equip-
ment or parts which are claimed to have been defective in material or workmanship.
DISCLAIMER OF IMPLIED WARRANTIES & CONSEQUENTIAL DAMA ES
Bush og’s obligation under this limited warranty, to the extent allowed by law, is in lieu of all war-
ranties, implied or expressed, INCLUDIN 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 Bush og; 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 Bush og.
THIS LIMITED WARRANTY SHALL NOT APPLY:
1. To vendor items which carry their own warranties, such as engines, tires, and tubes.
2. If the unit has been subjected to misapplication, abuse, misuse, negligence, fire or other accident.
3. If parts not made or supplied by Bush og have been used in connection with the unit, if, in the sole judge-
ment of Bush og such use affects its performance, stability or reliability.
4. If the unit has been altered or repaired outside of an authorized Bush og dealership in a manner
which, in the sole judgement of Bush og, affects its performance, stability or reliability.
5. 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.
6. 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 BUS OG IS AUT ORIZED TO C ANGE T IS LIM-
ITED WARRANTY IN ANY WAY OR GRANT ANY OT ER WARRANTY UNLESS SUC C ANGE IS MADE
IN WRITING AND SIGNED BY BUS OG’S SERVICE MANAGER, POST OFFICE BOX 1039, SELMA,
ALABAMA 36702-1039.
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
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 T E WARRANTY REGISTRATION
CARD AS BEEN FILED WIT BUS OG/
SELMA, ALABAMA
MODEL NUMBER
SERIAL NUMBER
DATE OF RETAIL SALE
2
DEALER PREPARATION C ECK LIST
ROTARY TILLERS
BEFORE DELIVERING MAC INE — The following check list should be completed.
Use the Operator’s Manual as a guide.
r1. Assembly completed.
r2. Gearboxes filled with oil.
r3. All fittings lubricated.
r4. All shields in place and in good condition.
r5. All fasteners torqued to specifications given in Torque Chart.
r6. Slip clutch checked for proper operation.
r7. All decals in place and readable. (See decal page.)
r8. Overall condition good (i.e. paint, welds)
r9. Operators manual has been delivered to owner and he has been instructed
on the safe and proper use of the cutter.
Dealer’s Signature
Purchaser’s Signature
T IS C ECKLIST TO REMAIN IN OWNER’S MANUAL
It is the responsibility of the dealer to complete the procedures listed
above before delivery of this implement to the customer.
3
IMPORTANT SAFETY PRECAUTIONS
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, per
sonal injury, reduction of efficiency and worst of all—loss of life. Watch for safety hazards and correct defi
ciencies 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.
1. Read the Operator’s Manual. Failure to read the Operator’s Manual is considered a misuse of this
equipment.
2. Become familiar with all the machine’s controls and all the caution, warning and danger decals
affixed to the machine before attempting to start or operate.
3. Before starting or operating the machine, make a walk around inspection and check for obvious
defects such as loose mounting bolts and damaged components. Correct any deficiency before
starting.
4. Do not allow children to operate the implement. Do not allow adults to operate it without proper
instruction.
5. Do not carry passengers.
6. Keep the area of operation clear of all persons, particularly small children and pets. The operator
should cease operation whenever anyone comes within the area.
7. Lower implement to ground, stop tractor engine and apply parking brake before leaving the tractor.
8. Keep hands and feet away from implement.
9. Wear personal protective equipment such as, but not limited to, protection for eyes, ears, feet,
hands and head when operating or repairing the equipment. Do not wear loose clothing or jewelry
that may catch on equipment moving parts.
10. When performing adjustments or maintenance on the implement, first lower it to the ground or block
it securely at a workable height.
11. Never stand between tractor and implement while tractor is being backed to the hitch.
12. Reduce speed when transporting implement to avoid bouncing and momentary loss of steering.
13. Use tractor flashing warning lights, day or night, when transporting implement on road or highways
unless prohibited by law.
14. It is recommended that tractor be equipped with Rollover Protective System (ROPS) and seat belt
be used in all implement operations.
This symbol is used to call attention to safe-
ty 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.
4
IMPORTANT FEDERAL LAWS AND RE ULATIONS* CONCERNIN
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 and ealth Act of 1970) OS A
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 OS A 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 & ome Division, Child Labor Bulletin #102.)
EMPLOYEE TRACTOR OPERATIN 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. itch 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.
5
SECTION l
INTRODUCTION AND DESCRIPTION
1-1 INTRODUCTION
We are pleased to have you as a Bush og customer.
Your Bush og Rotary Tiller has been carefully
designed to give maximum service with minimum
down time. This manual is provided to give you the
necessary operating and maintenance instructions
for keeping your rotary tiller in top operating condi-
tion. Please read this manual thoroughly.
Understand what each control is for and how to use
it. Observe all safety precautions decaled on the
machine and noted throughout the manual for safe
operation of the implement. If any assistance or addi-
tional information is needed, contact your authorized
Bush og dealer.
NOTE
All references made in this manual to right, left, front,
rear, top and bottom is as viewed facing the direction
of forward travel with implement properly attached to
tractor.
1-2 DESCRIPTION
The RTN, RTNR medium duty series of rotary tillers
is designed for use in a wide range of tilling require-
ments. The RT heavy duty series of rotary tillers is
designed for tougher operating conditions. Each of
the tillers has adjustable skid shoes for setting
desired tilth of the soil. Center gearboxes tranfer
power from the tractor PTO to the end drive system.
The RTN, RTNR series uses a heavy duty chain
drive to the rotor shaft whereas the RT series uses
a gear train type of end drive system. Slip clutches
protect the tillers from overload damage.
NOTE: The RTNR series of rotary tillers utilizes a
reverse rotation design which turns the rotor/blade
assembly in the opposite direction of forward travel.
Figure 1-1 Major Components
(Model RTN 60 Shown)
Rear
Deflector
Adjustable, Spring Loaded
Shock Absorber
For Rear Deflector
A-Frame
Parking Stand
Rotor/Blade Assembly
Driveline With Slip Clutch
Adjustable Skid Shoe
Chain Drive Cover
Adjustable Lower
itch Pin
Input Gearbox
(Behind Slip Clutch)
6
RTNR60 RTNR72 RTNR80
Model No. RTN60 RTN72 RTN80 RTH60 RTH72 RTH80 RTH88
Tillage Width 60” 72” 80’ 60” 72” 80” 88”
Number of Blades 28 36 40 28 36 40 44
Type Blades C-Type C-Type C-Type C-Type C-Type C-Type C-Type
Weight 664 lbs. 726 lbs. 777 lbs. 810 lbs. 884 lbs. 924 lbs. 964 lbs.
No. of Flanges 7910 7910 11
Rotor Speed 238 RPM @ 540 RPM 213 RPM @ 540 RPM
Depth of Cut 7” Adjustable with 5-Position Skid 7” Adjustable
Power to Rotor Chain Drive (#100) Single Speed ear Drive
SPECIFICATIONS
2-1 ATTACHIN TO TRACTOR
NOTE
The RTN series tiller may be offset to either side if
so desired. Instructions for offsetting are given in
paragraph 2-3.
A. Attach tiller to tractor 3-point hitch per tractor
operator’s manual. Do not attach driveline at this
time.
NOTE
Due to the many variations in tractor/implement hitch
points and corresponding differences in distances
between tractor PTO shafts and implement input
shafts, drivelines may need to be shortened as
described in the following steps:
B. Raise and lower tiller to determine position
with shortest distance between the tractor PTO shaft
and gearbox input shaft. Shut down tractor, leaving
tiller in position of shortest distance. Securely block
tiller in position.
C. Pull driveline apart. Attach outer (female) sec-
tion to tractor PTO shaft. Pull on driveline section to
be sure that yoke locks into place.
D. old driveline sections parallel to each other
to determine if it is too long. Each section should end
WARNIN
TO AVOID SERIOUS INJURY OR DEATH:
NEVER STAND BETWEEN TRACTOR
AND TILLER WHILE TRACTOR IS BEIN
BACKED TO HITCH.
WARNIN
TO AVOID SERIOUS INJURY OR DEATH:
ADDITIONAL TRACTOR FRONT BAL-
LAST MAY BE NEEDED FOR STABLE
OPERATION AND TRANSPORT OF THE
TILLER. SEE TRACTOR OPERATOR’S
MANUAL FOR RECOMMENDED WEI HTS.
approximately 3 inches (76mm) short of reaching
universal joint shield on opposite section. If too long,
measure 3 inches back from universal joint shield
and mark on opposite section. (Figure 2-1). Do this
for both sections.
Figure 2-1
E. Raise and lower tiller to determine position
with greatest distance between PTO shaft and gear-
box input shaft. Shut down tractor leaving tiller in
position of greatest distance. Securely block tiller
in position.
F. old driveline sections parallel to each other
and check for minimum 6 inches (15cm) overlap.
(Figure 2-2) If driveline has been marked for cutting,
overlap will be the distance between two marks. If
driveline has less than minimum overlap, do not use.
Contact authorized Bush og dealer.
Figure 2-2
Minimum Overlap
7
SECTION II
PREPARATION FOR USE
NOTE
If driveline is the correct length, omit the following
steps “G” through “J” and proceed to step “K”.
G. Clamp driveline in a well padded vice to pre-
vent damage to the shield. Cut off shield where
marked. (Figure 2-3)
. Using cut off section of shield as a guide, cut
shaft the same amount. (Figure 2-4)
Figure 2-4
I. Repeat steps “G” and “ ” to other driveline
section.
J. Deburr ends of driveline sections and clean
away all chips and fillings. (Figure 2-5)
K. Apply multi-purpose grease to inside of outer
(female) driveline section. Assemble driveline and
install on tractor and tiller. Pull on each driveline sec-
tion to be sure yokes lock into place. Make certaqin
driveline shielding is in place and in good condition.
Figure 2-3
Figure 2-5
DAN ER
L. Adjust lower lift arm to level tiller right to left.
Refer to tractor operator’s manual for instructions.
M. Adjust top link of tractor 3-point hitch to level
tiller front to rear.
N. Set up tractor stabilizer bars, sway blocks, or
equivalent to prevent implement side sway. (Figure 2-6)
2-2 OFFSETTIN 3-POINT HITCH
(RTN Series)
The lower hitch pins on the RTN series can be offset
up to 6 inches to either side as follows:
A. Loosen clamp bolts on hitch pin that will move
outward and slide to desired position.
B. Remove opposite hitch pin bracket and replace it
between clutch shield and “A” frame. A distance of 26-
7/8” , measured as shown in Figure 2-7, must be main-
tained between pins.
C. Tighten clamp bolts.
Figure 2-7 Lower itch Pins - May Be Relocated
MAKE CERTAIN DRIVELINE YOKES ARE
SECURELY FASTENED. FAILURE TO DO SO
MAY RESULT IN SERIOUS INJURY.
Figure 2-6
26-7/8”
Stabilizer
Stabilizer
Stabilizer Bars
Lift Arms
8