Belt Adjustment and Tension

WARNING! Do not overtighten rollers! This will cause premature roller bearing failure!

Belt adjustment and tension performs two functions: adjustment for tension and centering. Your new treadmill comes pre-adjusted from the factory for tension and centering. Please follow the procedures below if the belt shifts to the left or right while walking:

WALKING BELT IS SHIFTING TO THE LEFT (Diagram 1)

First, turn treadmill on to run at 1 mph. Using the hex key provided, turn the left rear roller adjustment bolt ¼ turn in the clockwise direction. Next, run the treadmill at 2.5 mph. You should see the belt start to correct itself by moving back towards the center. Repeat the above procedure until the walking belt is centered. It may be necessary to set walking belt tension once you have completed this procedure if the belt feels like it is slipping while walking. Refer below to the “Walking Belt Slipping” instructions.

WALKING BELT IS SHIFTING TO THE RIGHT (Diagram 2)

First, turn the treadmill on to run at 1 mph. Using the hex key provided, turn the right rear roller adjustment bolt ¼ turn in the clockwise direction. Next, run the treadmill at 2.5 mph. You should see the belt start to correct itself, moving back towards the center. Repeat the above procedure until the walking belt is centered. It may be necessary to set walking belt tension once you have completed this procedure if the belt feels like it is slipping while walking. Refer below to the “Walking Belt Slipping” instructions.

WALKING BELT IS SLIPPING DURING USE (Diagram 3)

First, unplug the power cord from the surge protector. Using the hex key provided, turn both left and right rear roller adjustment bolts the same distance, usually a ¼ turn in the clockwise direction. Plug the power cord back into the surge protector and run the treadmill at 2.5 mph. You should now walk on the belt to determine if the belt is still slipping. Repeat the above procedure until the walking belt is not slipping. The tension should be just tight enough not to slip.

♦Turning the hex key counter clockwise brings the rear rollers and belt towards you.

♦Turning the hex key clockwise pushes the rear roller and belt away form you.

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Keys Fitness EC3500HRC owner manual Belt Adjustment and Tension, Walking Belt is Shifting to the Left Diagram
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EC3500HRC specifications

The Keys Fitness EC3500HRC is a modern elliptical trainer designed to cater to fitness enthusiasts who seek a comprehensive workout experience while ensuring convenience and comfort. This machine balances cutting-edge technology with an ergonomic design, making it an ideal choice for home gyms or fitness centers.

One of the standout features of the EC3500HRC is its advanced Heart Rate Control (HRC) functionality. This technology allows users to monitor their heart rates in real time, ensuring they remain within their target heart rate zones for optimal fat burning and cardiovascular training. The machine is equipped with integrated heart rate sensors on the handlebars, offering immediate feedback without the need for additional equipment.

The EC3500HRC boasts a robust and durable construction, designed to withstand intense workout sessions. The high-quality materials used in its design ensure stability and longevity, making it suitable for users of various fitness levels. The adjustable stride length is another key feature that caters to different user preferences and heights. This allows for a natural range of motion, reducing the risk of injury while enhancing the overall workout experience.

In terms of technology, the elliptical is equipped with a user-friendly console that displays essential workout metrics such as distance, time, speed, calories burned, and heart rate. This intuitive display encourages users to stay motivated by tracking their progress in real-time. Additionally, the machine often includes multiple preset workout programs that cater to various fitness goals, from weight loss to endurance training.

Another highlight of the Keys Fitness EC3500HRC is its whisper-quiet operation. The quiet drive system ensures that workouts can be completed subtly, without disturbing others in the vicinity. This feature makes it perfect for home use, where noise levels can be a concern.

Furthermore, the EC3500HRC is designed with comfort in mind. The oversized foot pedals provide excellent stability, while their non-slip surface ensures safety during workouts. The adjustable incline feature also enhances the versatility of this machine, enabling users to target different muscle groups and intensify their routines.

In conclusion, the Keys Fitness EC3500HRC is an exceptional elliptical trainer, combining functionality, comfort, and advanced technology. With its HRC feature, durable build, adjustable features, and user-friendly console, it is an excellent investment for anyone looking to enhance their fitness regime at home or in a gym setting. Whether you're a beginner or a seasoned athlete, the EC3500HRC is designed to adapt to your fitness journey.
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