SETUP AND ADJUSTMENTS

Park Brake Adjustment

When park brake is in the engaged position the distance between the trunion and the bolt head at the rear of the assembly should measure 1/8” to 1/4” and the spring should measure 1.25”. To adjust the gap between the trunion and the bolt head loosen the nut against the yoke then turn the bolt head the proper direction to achieve the proper gap. To adjust the length of the spring turn the nut against the spring the proper direc- tion to lengthen or shorten the spring. This adjustment is the same for both sides. FIG - 8

•If brake lever trys to catch as you engage the brake the spring needs to be tightened. When you change the spring length you also have to maintain the 1/8” to 1/4” gap between the bolt

head and the trunion.

NOTE: Do not force the brake lever into the on position if it is catching this will cause damage to the brake assembly.

•If brake squeaks while the machine is in use. The spring may be to tight or the gap between the bolt head and the trunion may be to large.

Motion Control Linkage Adjustment

This adjustment must be made with the rear wheels rotating. Raise the rear of the machine and block it up so the wheels are free to rotate.

CAUTION: Keep hands, feet and clothing away from rotating tires.

Spring

1/4” Gap

 

Loosen here

FIG - 8

Begin with either side and put the motion control lever into the neutral position. Adjust the motion control linkage by rotating the double nuts in the proper direction until the wheel stops rotating.

FIG - 9 Move the motion control lever forward then into the neutral position and place it into the neutral slot. The wheel must be stopped com- pletely at this point. Now do the same in reverse and release the lever. The lever should return to neutral on its own. If not see reverse spring detent adjustment.

Tilt seat forward and remove the seat rod so the seat may rotate forward onto the frame.

Place a 2x4 board between the foot plate and the center of the seat to engage the seat safety switch.

Loosen the nuts directly behind each ball joint on both rods that connect the pump arm to the motion control assemblies. FIG - 9

Start the engine. The park brake must be engaged and the motion control levers in the neutral slots to start the engine. Run the en- gine approximately half throttle

Release park brake to allow the wheels to rotate.

Motion

 

Control

Turn Here

Lever

To Adjust

 

Loosen Here

Loosen Here

(Lt. Hand Thds.)

 

 

FIG - 9

16

Page 15 Page 17
Page 16
Image 16
Husqvarna 968999225 / ZTH7227KOB, 968999189 / ZTH6123KOLA manual Park Brake Adjustment, Motion Control Linkage Adjustment
Page 15 Page 17

968999224 / ZTH6127KOB, 968999225 / ZTH7227KOB, 968999189 / ZTH6123KOLA specifications

Husqvarna has long been a trusted name in outdoor power equipment, and their ZTH series of zero-turn mowers further cements this reputation. Among the offerings are the models 968999224 (ZTH6127KOB), 968999225 (ZTH7227KOB), and 968999189 (ZTH6123KOLA), each designed to deliver exceptional performance and efficiency for both residential and commercial users.

The ZTH6127KOB is equipped with a robust 27 HP engine, providing ample power for tackling large lawns with heavy grass and uneven terrain. Its 61-inch cutting deck ensures a wide cutting path, allowing for faster mowing and reduced time spent on the job. The deck features an innovative design that optimizes airflow for cleaner cuts and better grass lift, resulting in a superior finish.

The ZTH7227KOB takes things a step further with its powerful 27 HP engine and expansive 72-inch cutting deck. This model is particularly well-suited for commercial landscapers who need to cover large areas quickly. The mower’s heavy-duty frame and reinforced components ensure durability and reliability under demanding conditions.

Meanwhile, the ZTH6123KOLA, with its 23 HP engine, offers a slightly smaller yet highly efficient option. Its 61-inch cutting deck strikes the perfect balance for homeowners and small commercial operations looking for an agile yet powerful mower. All models come equipped with intuitive controls and ergonomic seating designed for hours of comfortable operation.

Technologically, all three models boast advanced features such as electronic fuel injection, which enhances fuel efficiency and provides smoother acceleration. The Hydro-Gear transmission ensures a responsive and agile maneuverability, allowing operators to navigate tight spaces with ease. The mowers also feature easy-to-use height adjustment systems for customizing cutting heights based on grass types and conditions.

Safety is a priority, and Husqvarna has equipped these models with ROPS (Roll Over Protection System) and an automatic blade brake that enhances operator safety while in operation. Each model combines high performance, efficiency, and comfort, making them ideal choices for anyone seeking a reliable solution for lawn maintenance.

From commercial users to homeowners, the ZTH series by Husqvarna proves to be an investment in quality and performance, reaffirming the brand’s commitment to excellence in lawn care technology.
Top Page Image Contents