WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Failure to follow these instructions can result in serious personal injury or property damage.

TROUBLESHOOTING

PROBLEM

 

POSSIBLE CAUSE

 

CORRECTION

 

 

 

 

 

Engine does not start

1.

Spark plug wire disconnected.

1.

Reconnect wire.

 

2.

Engine Throttle Control Lever incorrectly set.

2.

Put lever in START position.

 

3.

Fuel tank empty.

3.

Add fuel.

 

4.

Choke control (if so equipped) in incorrect position.

4.

See Engine Owner’s Manual.

 

5.

Stale gasoline.

5.

Drain fuel and add fresh fuel.

 

6.

Dirty air filter.

6.

Clean or replace filter.

 

7.

Defective or incorrectly gapped spark plug.

7.

Inspect spark plug.

 

8.

Carburetor out of adjustment.

8.

See Engine Service Dealer.

 

9.

Misadjusted throttle control.

9.

See Engine Service Dealer

 

10.

Dirt or water in fuel tank.

10.

See Engine Service Dealer.

 

 

 

 

 

Engine runs poorly.

1.

Defective or incorrectly gapped spark plug.

1.

Inspect spark plug (see Engine Owner’s Manual).

 

2.

Dirty air filter(s).

2.

Clean or replace (see Engine Owner’s Manual).

 

3.

Carburetor out of adjustment.

3.

See Engine Service Dealer.

 

4.

Stale gasoline.

4.

Replace with fresh gasoline.

 

5.

Dirt or water in fuel tank.

5.

See Engine Service Dealer.

 

6.

Engine cooling system clogged.

6.

Clean air cooling system (see Engine Owner’s Manual).

 

 

 

 

 

Engine overheats.

1.

Engine cooling system clogged.

1.

Clean air cooling area (see Engine Owner’s Manual).

 

2.

Carburetor out of adjustment.

2.

See Engine Service Dealer.

 

3.

Oil level is low.

3.

Check oil level (see Engine Owner’s Manual).

 

 

 

 

 

Engine does not shut off

1.

Misadjusted throttle control or ignition switch.

1.

See Engine Owner’s Manual or Engine Service Dealer.

 

 

 

 

 

Wheels and Tines will not turn

1.

Improper use of controls.

1.

Review Sections 3 and 4.

 

2.

Worn, broken, or misadjusted drive belt(s).

2.

See “Checking Drive Belt Tension,” Section 5.

 

3.

Internal transmission wear or damage.

3.

Contact local dealer or the factory.

 

4.

Bolt loose in transmission pulley.

4.

Tighten bolt.

 

 

 

 

 

Tines turn, but wheels don’t.

1.

Wheel Drive Pins not in WHEEL DRIVE.

1.

See “Wheel Drive Pins” in Section 3.

 

2.

Bolt loose in transmission pulley.

2.

Tighten bolt.

 

3.

Internal transmission wear or damage.

3.

Contact local Dealer or the Factory.

 

 

 

 

 

Wheels Turn, but Tines Don’t.

1.

Tine holder mounting hardware missing.

1.

Replace hardware.

 

2.

Bolt loose in transmission pulley.

2.

Tighten bolt.

 

3.

Internal transmission wear or damage.

3.

Contact local Dealer or the Factory.

 

 

 

 

 

Poor tilling performance.

1.

Worn tines.

1.

See “Bolo Tines” (Section 5).

 

2.

Improper Depth Regulator setting.

2.

See “Tilling Tips & Techniques,” Section 4.

 

3.

Incorrect throttle setting.

3.

See Section 4.

 

4.

Forward Drive Belt slipping.

4.

See “Checking Forward Drive Belt Tension,” Section 5.

 

 

 

 

 

22

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Troy-Bilt 640C-Tuffy CRT, 640C - Tuffy CRT, 644A - Super Bronco CRT Troubleshooting, Problem Possible Cause Correction
Page 21 Page 23

640C - Tuffy CRT, 644A - Super Bronco CRT, 640C-Tuffy CRT, 640C-Tuffy specifications

The Troy-Bilt 640C-Tuffy and the 644A-Super Bronco CRT are exemplary models in the realm of cultivators and tillers, merging robust performance with user-friendly features. These machines are designed to make garden preparation easier and more efficient, catering to both amateur gardeners and seasoned horticulturists alike.

The Troy-Bilt 640C-Tuffy boasts a powerful engine and features a rear-tine design, enabling the user to tackle tough soil with ease. One of its main features is the Carbide Tines that effectively break up hard ground and aerate the soil, promoting healthy growth. The 640C-Tuffy is sturdy, with durable construction that ensures longevity and resilience against tough garden conditions. It also includes a 10-inch tilling width, allowing it to cover substantial ground in shorter periods. Moreover, the model is equipped with adjustable tilling depth settings, accommodating various types of gardening tasks from breaking new ground to preparing existing beds.

On the other hand, the 644A-Super Bronco CRT highlights innovative technology that makes tilling a breeze. This model features counter-rotating tines which effectively mix compost and soil, offering improved mixing and aeration. The 644A is known for its robust performance, powered by a reliable engine, which delivers consistent torque even on challenging soil types. Additionally, its 18-inch tilling width allows for broader coverage, resulting in efficient garden preparation.

Both models are equipped with ergonomic handlebars designed for operator comfort. These handlebars are adjustable, allowing users of different heights to find a comfortable grip, thus reducing fatigue during extended use. The 640C-Tuffy and 644A-Super Bronco CRT are designed with ease of operation in mind, featuring intuitive controls and a lightweight design that makes maneuvering effortless.

In terms of maintenance, both models boast easily accessible components which allow for simple servicing and routine upkeep, ensuring long-lasting performance. Additionally, these cultivators are built with safety features, including protective shields that guard against debris.

In summary, the Troy-Bilt 640C-Tuffy and 644A-Super Bronco CRT shine in their ability to combine cutting-edge technology, user-friendly operation, and robust design, making them ideal choices for anyone looking to enhance their gardening experience. Whether preparing a new garden bed or maintaining an existing one, these cultivators are engineered to deliver exceptional results with ease and confidence.
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