Stopping the engine

cranking. Avoid flooding and operate engine without choking as soon as possible.

4.Set throttle at approximately 1/2 open position.

5.Insert key in ignition switch and rotate full clockwise to engage starting motor. Release key when engine starts.

IMPORTANT: The engine starter should not be operated for periods longer than 30 seconds at a time. An interval of at least two minutes should be allowed between such cranking periods to protect the starter from overheating and burn-out.

6.Perform test to make sure safety start interlock system is operating properly. Refer to Safety start interlock system section.

7.As soon as engine begins to run, check to make certain the oil warning light, check engine light and alternator warning light (if applicable) are off. If not, stop engine immediately and check for the cause.

8.Allow the engine to idle a few minutes before advancing the throttle and/or engaging the deck clutch.

Use the following procedure to shut off the engine after operating the equipment.

1.Place the control levers in the park brake position

2.Disengage the deck clutch

3.Throttle back to low idle for a couple of minutes

4.Rotate ignition key counter-clockwise to the “OFF” position. Remove the key from switch before leaving the tractor.

Moving tractor with stalled engine

If it becomes necessary to move the tractor when the engine is inoperative, the hydraulic pumps are equipped with bypass valves. Before moving the unit, turn bypass valves counter clockwise one-half to one revolution. The valve stems on each hydraulic pump are located near the top and are identified as a hex stud. The valve is located per Figure 3-5.

The steering control levers must be placed in the neutral position, to release the park brakes, so that the tractor can be moved.

Do not tow the machine. Move it by hand or use a winch to load on a trailer for transporting.

When transporting on another vehicle, the tractor should be facing forward and it must be secured.

IMPORTANT: Always make certain the two bypass valves are returned to their operating position before running the trac- tor following repairs.

ROPS

(Roll Over Protective Structure)

A Roll Over Protective Structure (ROPS) and seat belt is provided with the equipment. Do not remove the ROPS and seat belt. ROPS when used with seat belt is effective in reducing injuries during unit overturn accidents. Overturning the unit without ROPS can result in serious injury or death.

NOTE: Inspect the ROPS after the first 20 hours of opera- tion. Following the initial inspection, check the ROPS after every 500 hours of operation or every six months, whichever comes first. Figure 3-6

1.Check the torque of the ROPS mounting bolts. Tighten the bolts to the correct torques as shown below if

Tow valve

Figure 3-5

ROPS

Retaining rings

Clevis

Figure 3-6

necessary. Figure 3-7

2.Inspect the operator’s seat and the mounting parts for the seat belt. Tighten the bolts to the correct torque as shown below if necessary and replace parts that show wear or damage.

Torque values are given below:

Ft-lbs. Nm

Hustler Z4 ROPS mounting bolts . . . . . . 73. . . . . 99 Seat belt mounting hardware . . . . . . . . . . 48. . . . . 65

The two-post ROPS can be pivoted down by removing the right and left retaining rings and pulling out on the clevis pins so that the machine can operate under low hanging tree limbs or

602223_0609

3-5

Z4 specifications

The Hustler Turf Z4 is an exceptional zero-turn mower designed for both commercial landscapers and residential users seeking high performance and efficiency. Known for its robust construction and outstanding maneuverability, the Z4 stands out in the competitive field of lawn care equipment.

One of the key features of the Hustler Turf Z4 is its powerful engine options. Equipped with a choice of Kawasaki or Kohler engines, the Z4 delivers reliable performance and impressive torque, ensuring that it can handle tough mowing conditions with ease. The engine options range from 19.5 to 25 horsepower, providing ample power for various lawn sizes and terrain types.

The Z4 features a cutting width of 42 to 54 inches, allowing users to cover large areas in less time. Its innovative cutting deck design promotes superior grass clipping dispersion, leaving behind a clean and even finish. The deck is reinforced for added durability, making it capable of withstanding the rigors of frequent use, whether in commercial landscapes or home lawns.

One of the standout technologies in the Hustler Turf Z4 is the patented SmoothTrak steering system, which allows for precise control and effortless turns. This feature enhances maneuverability around obstacles, flower beds, and tight corners, making mowing a more efficient task. Combined with its low center of gravity, the Z4 offers stability on hills and uneven surfaces.

The Hustler Turf Z4 also prioritizes user comfort and ease of operation. The ergonomic seat design supports long hours of mowing without discomfort, and the intuitive control layout ensures that even novice users can operate the mower with confidence. The easy-to-adjust cutting height allows for quick transitions between different grass types or blooming flowers.

Additionally, the Z4 is equipped with convenient maintenance features. The flip-up deck allows for easy access to the blades for cleaning and sharpening, while the integrated grease fittings simplify lubrication.

In conclusion, the Hustler Turf Z4 is a powerful and versatile zero-turn mower that combines advanced technology with user-friendly features. Designed for performance and durability, it caters to the needs of both professionals and homeowners who demand efficiency and quality in their lawn care equipment. Whether tackling expansive lawns or intricate landscaping, the Z4 rises to the occasion with style and precision.