Troy-Bilt 643B Super Bronco manual Models 643B, 643C, 643D & 645A, Description

Page 25

MODELS 643B, 643C, 643D & 645A

REF

PART NO.

DESCRIPTION

REF

PART NO.

DESCRIPTION

NO.

NO.

 

 

 

 

 

 

 

 

 

 

1

686-04076

Tine Hood Assembly (A)

27

732-04185

Spring, Forward Clutch

 

686-04077

Tine Hood Assembly (B) (C)

28

746-04208

Cable Assembly, Forward Clutch

2

710-0395

Hex Screw, 5/16-18 x 2.25

29

746-04058

Cable Assembly, Reverse Clutch (B) (C)

3

710-0597

Hex Hd. Screw, 1/4-20 x 1

30

747-04210

Bail, Forward Clutch

4

710-0599

Screw, Self-Tapping,1/4-20 x 1/2

31

749-04084

Upper Handlebar

5

710-0874

Hex Hd. Screw, 5/16-18 x 1-1/4

32

749-04208

Lower Handlebar

6

710-3008

Hex Hd. Screw, 5/16-18 x .75

33

749-04106

Tab, Conduit Mount

7

712-04063

Hex Lock Nut, Nylon, 5/16-18

34

732-04040

Bracket, Reverse Clutch Cable (B) (C)

8

712-04064

Hex Lock Nut, Nylon, 1/4-20

35

786-04188

Handlebar Support

9

715-0108

Spirol Pin

36

786-04200

Panel

10

732-04320

Spring, Depth Regulator

37

710-0216

Screw, Hex, 3/8-16 x 3/4

11

736-0275

Flat Washer, 5/16

38

710-0805

Screw, Hex, 5/16-18 x 1-1/2

12

750-04149

Spacer, .462 x .328 x 1.63

39

712-3000

Hex Lock Nut, 3/8-16

13

750-04160

Bushing

40

736-0119

Lock Washer, 5/16

14

750-04556

Spacer

41

725-0157

Cable Tie

15

786-04092

Reverse Stop Arm

42

736-3050

Flat Washer, 3/8

16

786-04098

Channel Support Bracket

43

712-04065

Flange Lock Nut 3/8-16

17

786-04104

Drag Bar

44

710-0347

Hex Hd. Screw, 3/8-16 x 1-3/4

18

786-04191

Flap Stop Bracket

45

710-0514

Hex Hd. Screw, 3/8-16 x 1, Grade 5

19

786-04290

Hood Bracket, Left Hand

46

710-04048

Flange Screw .312-18 x 1.00

20

786-04291

Hood Bracket, Right Hand

47

742-04117

Single Bolo Tine - Left Hand

21

786-04292

Adjustable Depth Bar

48

742-04116

Single Bolo Tine - Right Hand

22

710-0106

Hex Hd. Screw, 1/4-20 x 1-1/4

49

686-04066

Tine Holder (A)

23

710-04163

Screw, #10-24 x 2

 

686-04065

Tine Holder (B) (C)

24

712-3009

Hex Lock Nut, 5/16-18

 

GW-1901

Bolo Tine Replacement Set (Incl. eight

25

712-0121

Hex Nut, #10-24

 

 

right-hand tines, eight left-hand tines and

26

712-0291

Hex Lock Nut, 1/4-20

 

 

required hardware). (A) (B) (C)

 

 

 

 

 

 

(A)For Model 643C

(B)For Model 643B

(C)For Model 645A

25

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Contents 11/15/06 Form no -02357A.fmFinding Model Number Table of ContentsCustomer Support Do not put hands or feet near or under rotating parts Safety Alert SymbolKeep children and pets away Refer to the Maintenance sectionsUse slower engine speeds Check all nuts, bolts, and screws forMaybeusedonthetillerandengine Operating SymbolsTo Avoid Serious Injury Assembly Steps AssemblyIntroduction Inspect UnitUse the handlebar to roll the tiller to a flat area Install Forward Clutch CableWith the Forward Clutch Bail Y, Fig While preventing the cable adjuster from turningCheck all nuts and screws for tightness Check Transmission OIL LevelFreewheel Ature package to identify the controls on your engineTo adjust the handlebars Travel Position Shallow SettingsTo operate the Forward Clutch Bail Stop all tiller motion by releasing the Forward Clutch BailIntroduction BREAK-IN Operation Following steps describe how to start and stop the engineStarting and Stopping Change engine oilOperating the Tiller For forward motion of the wheels and power to the tinesStopping the Engine and Tiller To move the Model 643C in reverse for short distancesTilling Tips & Techniques Tilling On Slopes Tilling Tips & Techniques CON’TClearing the Tines Read the following recommendations before tilling on slopesTerrace Gardening Loading and Unloading the TillerTiller Lubrication Transmission Gear OIL ServiceCheck Hardware Check Tire PressureRemoving⁄Installing a Tine Assembly Removing⁄Installing a Single TineBolo Tines Tine InspectionReplacement Belt Information Checking and AdjustingTo Check Forward Belt Tension Engine Cleaning AIR Cleaner Service Engine OIL Service Forward Clutch Bail AdjustmentModels 643B & 645A only To Check Reverse Belt TensionSpark Arrester Screen Service Spark Plug ServiceOFF-SEASON Storage To Change the Engine OilProblem Possible Cause Correction TroubleshootingPage 643C, 643D 645A Description Models 643B, 643C, 643D & 645AGW-1224-3 Models 643B, 643C, 643D & 645A Models 643B, 643C, 643D & 645A 634-43203 Page Page TROY-BILT Tiller Lifetime Limited Warranty

643B Super Bronco specifications

The Troy-Bilt 643B Super Bronco represents a robust and versatile addition to the world of outdoor power equipment, designed with the needs of gardeners and landscapers in mind. This rear-tine tiller is a notable choice for those looking to cultivate their gardens efficiently and effectively.

One of the standout features of the Troy-Bilt 643B is its powerful 306cc OHV engine, which provides ample torque and ensures that the tiller can tackle tough soil conditions with ease. This engine is specifically designed for superior performance and reliability, allowing users to till effectively in a variety of soil types, from sandy loam to clay.

The tiller boasts a 12-inch tilling width and a tilling depth of up to 8 inches, making it ideal for preparing garden beds and landscaping areas. The adjustable tilling depth allows gardeners to customize their cultivation process, enabling them to penetrate deeper for planting larger crops or more shallow for seedbed preparation.

Equipped with a rear-tine design, the Super Bronco brings several advantages. The rear-tine configuration provides better control and stability while working, making it easier to maneuver in tight spaces. Furthermore, the counter-rotating tines help to break up compact soil while reducing the chances of soil clumping, resulting in a finer tilled surface.

Another remarkable feature is the Troy-Bilt patented "Smart Till" technology, which allows users to select the most suitable tilling method for their specific soil conditions. This innovative technology enhances efficiency, saves time, and ensures that the tiller delivers optimal results with every pass.

For ease of use, the tiller is equipped with large, easy-grip controls and a comfortable handlebar design that reduces fatigue during extended use. Additionally, the rugged construction and all-terrain tires enable the Troy-Bilt 643B to navigate challenging landscapes without issue.

The maintenance of the Super Bronco is user-friendly, with features that facilitate easy access to essential components for tune-ups and repairs. Overall, the Troy-Bilt 643B Super Bronco combines power, technology, and practicality, making it an excellent choice for both novice and experienced gardeners seeking to enhance their outdoor projects.
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