Cutting Blades, Hole | Troy-Bilt 604 specification

•Remove the two hex bolts (from both sides of the tractor) that affix the PTO actuator bracket to the tractor frame. See Figure 19.

Hex Bolts

PTO Actuator	Deck Stop
Bracket

Figure 19

•Carefully lower the PTO actuator bracket and the engine pulley as an assembly while removing the drive belt from the upper portion of the engine pulley.

•Remove the drive belt by feeding it from both ends toward the front idler pulley on the double-idler bracket. See Figure 16.

•Reassemble by following the above steps in reverse order.

•Reroute the new belt around the pulleys and belt keepers EXACTLY as the old one was routed. Refer to Figure 16.

The AutoDrive™ pedal is properly adjusted when the hole found in the double-idler bracket has approximately 1-3/8" of travel with ten pounds of pressure applied to the AutoDrive™ pedal. See Figure 20.

Double-idler

Bracket

Hole	Idler
	Adj. Rod

Front of Tractor

NOTE: View shown from above tractor.

Figure 20

Adjust the AutoDrive™ pedal after replacing the drive belts on your tractor, if necessary, as follows:

•Locate the speed control assembly on the underside of the steering support bracket. See Figure 21.

	Idler	Place Wrenches Here
	Adj. Rod	Place Wrenches Here
	Adj. Rod

Neutral

Return

Bracket

Hairpin

Clips

AutoDrive™ Pedal	Speed Control
Return Spring	Assembly

Figure 21

•Remove both hairpin clips from the pin which is fastened to the speed control assembly (be careful not to lose the small flat washers found on the pin). See Figure 21.

•Remove the AutoDrive™ pedal return spring.

•Using two 9/16" wrenches, remove the pin

from the speed control assembly. See Figure 21.

Thread the idler adjustment rod inward or outward to lengthen or shorten the travel of the double-idler bracket until proper adjustment is achieved.

•Reassemble by following the above steps in reverse order.

IMPORTANT: After replacing the drive belts, perform the PTO adjustment as instructed in the ADJUSTMENTS section of this manual prior to operating the tractor.

CUTTING BLADES

WARNING: Cutting blades are sharp. Always protect hands by wearing heavy leather work gloves to grasp blades.

The blades may be removed for sharpening or replacement as follows.

•Remove the deck from beneath the tractor, (refer to DECK REMOVAL earlier in this section for detailed instructions) then gently flip the deck over to expose its underside.

•Place a block of wood between the center deck housing baffle and the cutting blade to act as a stabilizer. See Figure 22.

•Use a 15/16" wrench to remove the hex flange nut that secures the blade to the spindle assembly. See Figure 22.

604 specifications

The Troy-Bilt 604 is a versatile and reliable piece of equipment designed to meet the needs of homeowners and landscapers alike. Known for its robust performance and innovative features, this model stands out in the market for those requiring efficient yard maintenance.

One of the standout characteristics of the Troy-Bilt 604 is its powerful engine. Equipped with a reliable 4-cycle engine, it offers ample power for tackling various outdoor tasks, including cultivating, tilling, and soil preparation. This strong engine not only ensures performance but also translates into longevity, allowing users to depend on it for several seasons.

Another notable feature of the Troy-Bilt 604 is its patented front-tine design. This design provides excellent maneuverability in tight spaces, making it easier to work around garden beds and landscaping features. The adjustable tilling width is also a significant advantage, allowing users to switch between a narrow and wide tilling path based on their specific project needs. This flexibility helps optimize efficiency while minimizing time spent on each task.

The Troy-Bilt 604 incorporates advanced technologies that further enhance its functionality. For instance, the model is outfitted with easy-to-use controls, ensuring a user-friendly experience for both seasoned professionals and novice gardeners. The adjustable handlebars can be tailored to different heights, promoting comfort and reducing fatigue during operation.

Durability is a key attribute of the Troy-Bilt 604. Built with high-quality materials and reinforced components, this tiller is designed to withstand the rigors of frequent use in diverse environments. Users can have confidence in the machine's ability to handle tough soil conditions, as well as its resistance to wear and tear.

In addition to its impressive performance, the Troy-Bilt 604 is also designed with maintenance in mind. Features like easy-access air filters and oil drain ports simplify routine maintenance tasks, ensuring that the equipment runs smoothly for years to come.

Overall, the Troy-Bilt 604 combines power, versatility, and durability, making it an excellent choice for anyone looking to enhance their landscaping efforts. Whether you are preparing a new garden bed, tilling soil for planting, or maintaining an existing landscape, the Troy-Bilt 604 provides a reliable solution that meets various gardening needs with ease and efficiency.