Bush Hog HDTH7 Operating Manual
MODEL HDTH7
REAR DISCHARGE
FINISH MOWER
PART NO. 50078487
PUBLISHED September, 2017
Revised October, 2018
This Operator's Manual is an
integral part of the safe operation
of this machine and must be
maintained with the unit at all
times. READ,
FOLLOW the Safety and
Operation Instructions contained
in this manual before operating
the equipment. C01-Cover_A
UNDERSTAND, and
Important Operating
and Safety Instructions
are found in the Mower
Safety Video that can
be instantly accessed
on the internet at:
www.algqr.com/bve
© 2015 Alamo Group Inc.
1
2
SERIAL NUMBER
LOCATION
3
4
TABLE OF CONTENTS
SAFETY SECTION 1
General Safety Instructions and Practices ..........................................................................................................1-1
Operator Safety Instructions and Practices.........................................................................................................1-2
Connecting or Disconnecting Implement Safety Instructions and Practices .......................................................1-3
Crushing Hazards................................................................................................................................................1-4
Thrown Objects Hazards ............................................................................................................................1-5 &1-6
Run Over Hazards...............................................................................................................................................1-7
PTO EntanglementHazards.................................................................................................................................1-8
Mower Blade Contact Hazards............................................................................................................................1-9
Electrical & Fire Hazards...................................................................................................................................1-10
Transporting Hazards ........................................................................................................................................1-11
Maintenance Hazards .......................................................................................................................................1-12
Parts Information ...............................................................................................................................................1-13
Decal Location & Description..................................................................................................................1-14 - 1-17
Federal Laws and Regulations..........................................................................................................................1-19
INTRODUCTION SECTION 2
Introduction..........................................................................................................................................................2-1
Description & Equipment Specifications..............................................................................................................2-2
Limited Warranty .................................................................................................................................................2-3
Key Operation Points ..........................................................................................................................................2-4
ASSEMBLY SECTION 3
Dealer Setup Instructions ....................................................................................................................................3-1
Notice (GEARBOX OIL) ......................................................................................................................................3-2
Preparing To Assemble........................................................................................................................................3-3
Assembling the HDTH.........................................................................................................................................3-4
Flex Link Setup (Standard)..................................................................................................................................3-5
Flex Link Setup (Quick Hitch)..............................................................................................................................3-6
Lift Pins................................................................................................................................................................3-7
Caster Wheels.....................................................................................................................................................3-8
Driveline Attachment ...........................................................................................................................................3-9
Front Roller Attachment (OPTIONAL)...............................................................................................................3-10
OPERATION SECTION 4
Operation Instructions .........................................................................................................................................4-1
Operator Requirements.......................................................................................................................................4-2
Tractor Requirements..........................................................................................................................................4-3
Tractor Safety Devices ........................................................................................................................................4-4
Tractor Horsepower.............................................................................................................................................4-4
Tractor 3 Pt. Lift...................................................................................................................................................4-4
Front End Weights...............................................................................................................................................4-4
Power Take Off....................................................................................................................................................4-5
Tire Spacing ........................................................................................................................................................4-5
Getting On and Off The Tractor...........................................................................................................................4-6
Starting the Tractor..............................................................................................................................................4-7
Connecting the Mower to the Tractor .................................................................................................................4-7
Drieline Attachment .............................................................................................................................................4-8
Driveline Length Modification ..............................................................................................................................4-9
Setting the Mower .............................................................................................................................................4-10
Pre-Operation Inspection and Service...............................................................................................................4-11
Mower Pre-Operation Inspection /Service .............................................................................................4-12 & 4-13
Continued On Next Page
5
TABLE OF CONTENTS - CONTINUED
OPERATION SECTION 4 (Continued)
Driving the Tractor and Implement..........................................................................................................4-14 - 4-22
Disconnecting the Mower From the Tractor ......................................................................................................4-22
Mower Storage ..................................................................................................................................................4-23
Transporting the Tractor and Implement ...........................................................................................................4-23
Transporting on Public Roadways ..........................................................................................................4-24 - 4-25
Hauling Tractor and Implement .........................................................................................................................4-26
Trouble Shooting.....................................................................................................................................4-27 - 4-28
MAINTENANCE SECTION 5
Lubrication (LUBRICATION POINTS LOCATIONS)............................................................................................5-1
Gearbox Maintenance .........................................................................................................................................5-2
Driveline Maintenance.........................................................................................................................................5-3
Blade Spindle and Belt Tension Idler Arm Lubrication and Maintenance ............................................................5-4
Blade Servicing ...................................................................................................................................................5-5
Blade Sharpening................................................................................................................................................5-5
Blade Removal ....................................................................................................................................................5-6
Blade Installation .................................................................................................................................................5-6
Belt Removal, Belt Replacement.........................................................................................................................5-7
Belt adjustment....................................................................................................................................................5-7
End of Season Storage .......................................................................................................................................5-8
Proper Torque for Fasteners................................................................................................................................5-9
6
SAFETY
SECTION
1
HDTH 7 Finish Mower 10/17
Safety Section 1-1
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-2
© 2017 Alamo Group
SAFETY
SAFETY
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Safety Section 1-3
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-4
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-5
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-6
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-7
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-8
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-9
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-10
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-11
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-12
© 2017 Alamo Group
SAFETY
SAFETY
HAZARDS WITH MAINTENANCE OF IMPLEMENT
HDTH 7 Finish Mower 10/17
Safety Section 1-13
© 2017 Alamo Group
SAFETY
SAFETY
HDTH 7 Finish Mower 10/17
Safety Section 1-14
© 2017 Alamo Group
SAFETY
SAFETY
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HDTH 7 Finish Mower 10/17
Safety Section 1-15
© 2017 Alamo Group
SAFETY
SAFETY
ITEM PART QUANITY DESCRIPTION
NO. NO.
1 D855 1 Danger Decal, Multilingual
2 D546 1 Danger Decal, Guard Missing
3 D559 1 Genuine Parts Decal
4 D547 1 Danger / Warning Decal, Driveshaft / PTO
5 D646 3 Danger, Guard Missing
6 D418 3 Danger Decal, Blade Contact
7 D851 1 Danger Decal, Run Over and Thrown Object Hazard
8 D852 1 Danger Decal, Crushing Hazard
9 D641 3 Warning Decal, Pinch Point Hazard
10 D850 1 Danger Decal, Entanglement Hazard
11 50038320 1 Belt Installation Decal
12 50074259 1 Made in America Decal
13 50078567 3 Bush Hog Logo Decal
14 50078485 2 Model Decal HDTH7
15 50078568 2 Bush Hog Logo Turf Decal
16 50035829 1 Owners Manual Tube
* 50078297 1 Owners Manual
17 D708 1 Warning Decal, Avoid Equipment and Grass Fires
18 50031214 2 Red Reflector
*Not Shown
HDTH 7 Finish Mower 10/17
Safety Section 1-16
© 2017 Alamo Group
SAFETY
SAFETY
D646
D559
D418
D546
D641
HDTH 7 Finish Mower 10/17
Safety Section 1-17
© 2017 Alamo Group
SAFETY
SAFETY
D850
D547
D851
D708
DANGER
Run Over Hazard - Injury or Death
TO AVOID SERIOUS INJURY OR DEAT H:
ALWAYS BUCKLE UP seat belt.
ONLY START Tractor while seated in the operator's seat.
STOP ENGINE and PTO, engage parking brake, lower implement,
allow all moving parts to stop and remove key before dismounting
from tractor.
KNOW HOW to stop tractor and equipment quickly for an emergency.
DO NOT MOUNT or DISMOUNT Tractor in motion.
NEVER ALLOW riders on tractor or implement.
NEVER ALLOW children to operate or ride on tractor or implement.
KEEP BYSTANDERS CLEAR of area before moving tractor or
implement.
KEEP ALERT and AVOID hitting stumps, holes, ruts, and
uneven terrain.
AVOID tree limbs, brush and other overhanging objects that can
strike and throw the operator from seat.
D851_1
DANGER
D851_2
THROWN OBJECTS HAZARD
Mower can throw objects up to 300 feet. TO AVOID SERIOUS
INJURY OR DEATH to operator or bystanders:
STOP mowing if bystanders or traffic come within 300 feet.
DO NOT OPERATE with thrown object shielding removed.
KEEP thrown object shielding in place and in good condition during
operation. Thrown Objects shielding is subject to wear.
REPAIR OR REPLACE shielding if damaged, broken or missing. See
Operator’s Manual for all Shields and Guards.
INSPECT area for potential mower thrown object hazards before
mowing.
Remove and AVOID objects such as wire, cable, metal objects and
all other foreign material.
DO NOT ALLOW blades to contact solid objects like wire, rocks,
posts, curbs or guard rails.
DO NOT OPERATE in transport position or with wings off ground.
D851
D855
HDTH 7 Finish Mower 10/17
Safety Section 1-18
© 2017 Alamo Group
SAFETY
SAFETY
D852
HDTH 7 Finish Mower 10/17
Safety Section 1-19
© 2017 Alamo Group
SAFETY
SAFETY
Federal Laws and Regulations
This section is intended to explain in broad terms the concept and effect of federal laws and regulations concerning
employer and employee equipment operators. This section is not intended as a legal interpretation of the law and
should not be considered as such.
Employer-Employee Operator Regulations
U.S. Public Law 91-596 (The Williams-Steiger Occupational 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 Training Requirements
Title 29, Code of Federal Regulations Part 1928.57(a)(6). www.osha.gov
Operator instructions. At the time of initial assignment and at least annually thereafter, the employer shall
instruct every employee who operates an agricultural tractor and implements in the safe operating practices
and servicing of equipment with which they are or will be involved, and of any other practices dictated by the
work environment.
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.
Employer Responsibilities:
To ensure employee safety during Tractor and Implement operation, it is the employer’s responsibility to:
1. Train the employee in the proper and safe operation of the Tractor and Implement.
2. Require that the employee read and fully understand the Tractor and Implement Operator’s manual.
3. Permit only qualified and properly trained employees to operate the Tractor and Implement.
4. Maintain the Tractor and Implement in a safe operational condition and maintain all shields and guards on the
equipment.
5. Ensure the Tractor is equipped with a functional ROPS and seat belt and require that the employee operator
securely fasten the safety belt and operate with the ROPS in the raised position at all times.
6. Forbid the employee operator to carry additional riders on the Tractor or Implement.
7. Provide the required tools to maintain the Tractor and Implement in a good safe working condition and provide
the necessary support devices to secure the equipment safely while performing repairs and service.
8. Require that the employee operator stop operation if bystanders or passersby come within 300 feet.
Child Labor Under 16 Years of Age
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.)
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