Yard-Man 604 manual Carburetor Adjustment, Front to Rear

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•With the tractor parked on a firm, level surface, place the lift lever in the top notch (highest position) and rotate the blade nearest the discharge chute so that it is parallel with the tractor.

•Measure the distance from the front of the blade tip to the ground and the rear of the blade tip to the ground. The first measurement taken should be between 1/4" and 3/8" less than the second measurement. Determine the approximate distance necessary for proper

adjustment and proceed, if necessary, to the next step.

•Loosen the two jam nuts on the rear side of the deck stabilizer bracket. See Figure 8A.

•Locate the two lock nuts on the opposite side of the stabilizer bracket. See Figure 8A. Tighten the lock nuts to raise the front of the deck; loosen the lock nuts to lower the front of the deck.

•Retighten the two jam nuts loosened earlier when proper adjustment is achieved.

Side to Side

If the cutting deck appears to be mowing unevenly, a side to side adjustment can be performed. Adjust if necessary as follows:

WARNING: Turn the tractor’s engine off, remove the key from the ignition switch and apply the tractor’s parking brake before making any adjustments.

•With the tractor parked on a firm, level surface, place the lift lever in the top notch (highest position) and rotate the both blades so that they are perpendicular with the tractor.

•Measure the distance from the outside of the left blade tip to the ground and the distance from the outside of the right blade tip to the ground. Both measurements taken should be equal. If they’re not, proceed to the next step.

•Loosen, but do NOT remove, the hex cap screw on the left deck hanger bracket. See Figure 8B.

•Balance the deck so that both blade tip measurements taken earlier are equal.

•Retighten the hex cap screw on the left deck hanger bracket when proper adjustment is achieved.

A

Deck

Stabilizer

Bracket

Deck

Lock Nuts

Jam Nuts

B

Hex Cap Screw

Deck Hanger Bracket

Front to Rear

Side to Side

Figure 8

CARBURETOR ADJUSTMENT

WARNING: If any adjustments are made to the engine while the engine is running (e.g. carburetor), disengage all clutches and blades. Keep clear of all moving parts. Be careful of heated surfaces and muffler.

NOTE: A dirty air cleaner will cause an engine to run rough. Be certain it is clean and properly attached before adjusting carburetor. Refer to separate engine manual packed with your unit for information regarding air cleaner maintenance.

Refer to separate engine manual packed with your unit for carburetor adjustment information or see an authorized engine service dealer.

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Contents OPERATOR’S Manual Table of Contents Finding Your Model NumberCalling Customer Support General Operation Important Safe Operation PracticesChildren ServiceSlope Operation Do notSafety Labels found on your unit Slope Gauge Tractor SET-UP Attachments & AccessoriesAttaching the Battery Cables Installing the Mulch KITControls Choke Control Ignition SwitchIndicator Monitor / Hour Meter Throttle Control LeverBrake Pedal Electric PTO Power TAKE-OFF KnobPTO Power TAKE-OFF Lever Autodrive PedalSafety Interlock Switches Shift LeverCruise Control Button Stopping the Engine Setting the Cutting HeightSetting the Cruise Control Starting the EngineUsing the Lift Lever Driving on SlopesOperating the Headlights Leveling the Deck AdjustmentsEngaging the PTO MowingFront to Rear Carburetor AdjustmentSeat Adjustment Steering AdjustmentBrake Adjustment Maintenance EngineChanging Engine Oil Cutting Deck Removal Cleaning the Engine and DeckChanging the Deck Belts Decks w/ Electric PTOInch decks w/ manual PTO Upper Drive Belt Changing the Transmission Drive BeltsFront of Tractor Lower Drive Belt Cutting Blades Charging BatteryTires FuseLubrication Trouble Possible Corrective Action Causes Troubleshooting GuideModel Part Description Tractor BodyModel Lift Assembly Model Steering Assembly Model Drive System 31 30 12c Single-speed Transmission PTO belt for 42 deck shown Power Take-off System Inch Deck †46-inch Deck Brake AssemblyCutting Decks Model Briggs & Stratton Intek Single Engine AccessoriesElectrical System Page MANUFACTURER’S Limited Warranty for

604 specifications

The Yard-Man 604 represents an evolution in outdoor power equipment, merging robust design with advanced technology to meet the demands of both residential and professional users. Renowned for its reliability, this machine is built to tackle various lawn care challenges, ensuring a well-manicured outdoor space with minimal effort.

One of the standout features of the Yard-Man 604 is its powerful engine, which offers excellent performance and fuel efficiency. The engine is designed to provide ample torque, enabling it to handle thick grass and uneven terrain with ease. Coupled with a reliable starting system, users can depend on the machine to fire up promptly every time, whether during a warm summer afternoon or a damp spring morning.

The cutting deck of the Yard-Man 604 is another highlight, designed for versatility and precision. With adjustable cutting heights, users can easily customize the lawn’s finish, whether they prefer a close trim or a slightly longer grass length for a lush appearance. The deck's robust construction ensures durability, while the design minimizes clippings left behind, reducing the need for additional cleanup.

In terms of technology, the Yard-Man 604 incorporates advanced features such as a self-propulsion system that adjusts to the user's walking speed, providing an effortless mowing experience. This not only enhances comfort but also improves maneuverability, making it easier to navigate around obstacles like trees and flower beds.

Safety is a key consideration in the design of the Yard-Man 604. It is equipped with a reliable safety switch that prevents accidental start-ups, along with sturdy handles that provide a secure grip during operation. These features, combined with a lightweight structure, make the mower accessible to a wide range of users.

Additionally, maintenance is straightforward with the Yard-Man 604. Its engine design allows for easy access to key components, making routine checks and servicing simple, which ultimately extends the lifespan of the equipment.

Overall, the Yard-Man 604 is characterized by its blend of power, efficiency, and user-friendly features, making it an ideal choice for anyone looking to keep their lawn in pristine condition with minimal hassle. Its thoughtful design caters to both casual homeowners and more demanding landscaping professionals, ensuring that it meets a variety of outdoor maintenance needs.
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