Bush Hog 280 manual Section Introduction and Description

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SECTION I

INTRODUCTION AND DESCRIPTION

1-1 INTRODUCTION

We are pleased to have you as a Bush Hog cus- tomer. Your 280 Series Rotary Cutter 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 cutter in top operating condition. Please read this manual thor- oughly. 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 implement. If any assistance or additional information is needed, con- tact your authorized Bush Hog dealer.

1-2 DESCRIPTION

The 280 Series rotary cutters (Figure 1-1) are designed for medium duty applications such as grass, corn stalks and light brush. These cutters are single spindle with two free-swinging blades. Free- swinging blades reduce the shock of impact when a stationary object is hit. Additional protection is pro- vided by a slip clutch on the gearbox input shaft. A round blade holder allows the cutter to “ride over” stumps and similar immovable objects. Models 285 and 286 are attached to the tractor using a standard Cat. I or II 3-point hitches. The 287 can use Cat. I and II standard and quick hitch or semi-mount. Standard equipment includes driveline shields, clutch shields and front and rear discharge shields

Table 1 Technical Specifications

Figure 1-1 Major Components

 

 

Flex

A-Frame

 

 

Link

Strut

Support Yoke

 

 

 

Gearbox

Rear

Band

Strongback

 

 

 

 

Driveline

 

 

 

 

Hitch Pin

 

 

 

 

 

 

Skid

 

 

 

 

 

 

 

 

 

 

Front Belting

 

 

 

 

 

 

(deflectors). NOTE: Dealer or purchaser may elect to delete front and rear discharge shields (deflec- tors) at their option. Refer to “WARNING” in Section 3-3.

NOTE

All references made to right, left, front, rear, top or bottom are as viewed facing the direction of forward travel with implement properly attached to tractor.

 

SERIES

285

286

287

 

 

 

 

Cutting Width

5’

6’

7’

 

 

 

 

 

 

 

 

Transport Width

66”

78”

90”

 

 

 

 

 

 

 

 

Length

103”

115”

127”

 

 

Hitch

3-Point Category I

3-Point Category I

3-Point Category I & 2

 

 

(Cat. II PIns Optional)

(Cat. II PIns Optional)

(Standard & Quick Hitch)

 

 

 

 

 

 

Cutting Height

1-1/2” - 10-1/2”

1-1/2” - 10-1/2”

1-1/2” - 10-1/2”

 

 

 

Cutting Capacity

2” Diameter

2” Diameter

2” Diameter

 

 

 

 

 

 

Driveshaft

ASAE Category 4

ASAE Category 4

ASAE Category 4

 

 

 

Gearbox

540 RPM (90 HP)

540 RPM (90 HP)

540 RPM (90 HP)?

 

 

 

 

 

 

 

Blades

1/2” x 4” Uplift

1/2” x 4” Uplift

1/2” x 4” Uplift

 

 

Blade Tip Speed

12,397 fpm

14, 877 fpm

14,420 fpm

 

 

 

 

 

 

 

Blade Holder

Round

Round

Round

 

 

 

 

 

 

 

Top Deck

10 Ga. Steel

10 Ga. Steel

10 Ga. Steel

 

 

Side Bands

1/4” x 8”

1/4” x 8”

1/4” x 8”

 

 

 

 

 

 

 

 

 

Minimum Tractor HP

30

40

50

 

 

 

 

 

 

 

Front & Rear Deflectors

Belting is standard, chain deflectors are optional

 

 

Wheels

Laminated

Laminated

Laminated

 

 

 

 

 

 

 

Approximate Weight (lbs.)

794 lbs. 1, 2

962 lbs. 1, 2

1247 lbs. 1, 3

 

 

 

 

 

1 - Weight includes deflector chains front & rear, 2 - Single tailwheel, 3 - Dual tailwheel

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

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Contents Bush HOG Congratulations Table of Contents Retail CUSTOMER’S Responsibility Under the Bush HOG WarrantyThis Limited Warranty Shall not Apply Disclaimer of Implied Warranties & Consequential DamagesDealer Preparation Check List Series Rotary CuttersImportant Safety Precautions EMPLOYERS, Employees and Operations Employee Tractor Operating InstructionsDescription Section Introduction and DescriptionIntroduction Section Preparation for USE Attaching to TractorPage General Safety Adjusting for WorkCutting Height Adjustment Section Operating InstructionsTransporting Section MaintenanceMaintenance Check List Blade Holder ASSEMBLY, Removal and Installation Slip Clutch Operational CheckSlip Clutch Adjustment Problem Probable Cause RemedyPRE-ASSEMBLY Safety Precautions Section V Assembly 3-POINT Lift Models 2853-POINT Lift Models Front View of Model 287 Lower Hitch PointsSEMI-MOUNT Model Quick Hitch ModelFront Belting Installation Rear Band InstallationFront Chain Installation Rear Chain InstallationSafety Decals Torque Specifications AmericanModel 287 Quick Hitch Assembly Bush HOG