INTRODUCTION IMPORTANT PRECAUTIONS

ASSEMBLY

BEFORE YOU BEGIN

TREADMILL OPERATION

CONDITIONING TROUBLESHOOTING GUIDELINES & MAINTENANCE

TENSIONING­THE RUNNING BELT

The running belt has been properly adjusted at the factory before it was shipped. At times the belt can move off-center during shipment.

CAUTION: Running belt should NOT be moving during tensioning. Over-tightening the running belt can cause excessive wear on the treadmill as well as its components. Never over-tighten the belt.

If you can feel a slipping sensation when running on the treadmill, the running belt must be tightened. In most cases, the belt has stretched from use, causing the belt to slip. This is a normal and common adjustment. To eliminate this slipping, turn the treadmill off and tension both the rear roller bolts using the supplied Allen wrench, turning them 1/4 TURN to the right as shown. Turn the treadmill on and check for slipping. Repeat if necessary, but NEVER TURN the roller bolts more than 1/4 turn at a time. Belt is properly tensioned when the slipping sensation is gone.

Belt is too far to the right side

Belt is too far to the left side

CENTERING THE RUNNING BELT

The running belt has been properly adjusted at the factory before it was shipped. At times the belt can move off-center during shipment. Before operating the treadmill, make sure the belt is centered and remains centered to maintain smooth operation.

CAUTION: Do not run belt faster than 1/2 mph while centering. Keep fingers, hair and clothing away from belt at all times.

If the running belt is too far to the right side:

With the treadmill running at 1/2 mph, turn the right adjustment bolt clockwise 1/4 turn at a time (using the supplied Allen wrench). Check the belt alignment. Allow belt to run a full cycle to gauge if more adjustment is needed. Repeat if necessary, until the belt remains centered during use.

If the running belt is too far to the left side:

With the treadmill running at 1/2 mph, turn the right adjustment bolt counter-clockwise 1/4 turn at a time (using the supplied Allen wrench). Check the belt alignment. Allow belt to run a full cycle to gauge if more adjustment is needed. Repeat if necessary, until the belt remains centered during use.

LIMITED WARRANTY

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Horizon Fitness CST3.5 manual Centering the Running Belt

CST3.5 specifications

The Horizon Fitness CST3.5 treadmill stands out as a versatile and robust option for fitness enthusiasts seeking an efficient and smooth running experience at home. Designed for both beginners and experienced runners alike, the CST3.5 combines performance, innovative technology, and user-friendly features to deliver an exceptional workout experience.

One of the key features of the CST3.5 is its powerful 2.5 HP motor, which provides an impressive speed range of up to 10 miles per hour and four levels of incline. This allows users to tailor their workouts to their fitness levels and goals, whether aiming for a brisk walk, an intense run, or a challenging hill climb. The treadmill features a spacious running surface measuring 20 inches by 55 inches, ensuring comfort and safety while in motion.

The CST3.5 is equipped with Horizon's exclusive Variable Response Cushioning technology, which provides optimal shock absorption throughout the running deck. This cushioning design helps reduce the impact on joints, making it a great option for long-distance runs and regular training sessions. Users can benefit from a running surface that feels just right, whether they're sprinting at high speeds or enjoying a leisurely stroll.

The treadmill features an easy-to-read, illuminated display that provides essential workout data, including time, speed, distance, calories burned, and heart rate. The integrated Bluetooth connectivity allows users to sync the CST3.5 with popular fitness apps, enabling them to track their progress and access additional training programs.

Moreover, the CST3.5 comes with built-in speakers and a USB charging port, allowing users to enjoy their favorite music or podcasts while they run. The compact and foldable design makes it easy to store the treadmill out of the way when not in use, making it ideal for home gyms with limited space.

Finally, the CST3.5 includes several pre-set workout programs designed by certified personal trainers, ensuring users remain motivated by offering diverse options for different fitness levels. Whether preparing for a marathon or simply trying to stay active, the Horizon Fitness CST3.5 treadmill is a fantastic choice for anyone looking to enhance their fitness journey at home. With its solid construction, innovative features, and user-friendly design, it promises to deliver an impressive workout experience.