1. Introduction
This manual provides comprehensive instructions for the safe and effective use, assembly, maintenance, and troubleshooting of your MAXXUS RunMaxx 4.2i Treadmill. Please read this manual thoroughly before operating the device and retain it for future reference.
The MAXXUS RunMaxx 4.2i is a compact and foldable electric treadmill designed for home fitness, offering a robust training experience with features like adjustable incline, a powerful motor, and Bluetooth connectivity for app integration.
2. Important Safety Instructions
To reduce the risk of serious injury, always follow basic precautions when using this treadmill, including the following:
- Read all instructions in this manual before using the treadmill.
- Keep children and pets away from the treadmill during operation.
- Place the treadmill on a flat, stable surface with adequate clearance around it.
- Ensure the safety key is properly attached before starting the treadmill.
- Do not exceed the maximum user weight of 110 kg.
- Consult a physician before starting any exercise program.
- Unplug the treadmill from the power outlet when not in use or before cleaning/maintenance.
- Do not operate the treadmill if it has a damaged cord or plug, or if it is not working properly.
3. Assembly
The MAXXUS RunMaxx 4.2i treadmill is designed for easy assembly. It comes largely pre-assembled. Follow these steps for final setup:
- Unpacking: Carefully remove all components from the packaging. Ensure all parts listed in the packing list are present.
- Base Stabilization: Place the main frame on a level surface.
- Upright Installation: Securely attach the uprights to the main frame using the provided hardware.
- Console Attachment: Mount the control console onto the uprights, ensuring all cables are connected correctly.
- Handlebar Setup: Attach the handlebars to the console or uprights as per the diagram.
- Final Checks: Verify all bolts and screws are tightened. Ensure the treadmill is stable before plugging it in.

Figure 3.1: Fully assembled MAXXUS RunMaxx 4.2i Treadmill.
4. Operating Instructions
4.1. Control Panel Overview

Figure 4.1: Detailed view of the LCD control panel.
The LCD display provides real-time feedback on your workout, including: Heart Rate, Time, Distance, Speed, and Calories Burned. The console also features controls for speed, incline, program selection, and a safety key slot.
4.2. Starting a Workout
- Plug the treadmill into a grounded electrical outlet.
- Attach the safety key to your clothing and insert the other end into the designated slot on the console. The treadmill will not operate without the safety key.
- Step onto the side rails of the treadmill.
- Press the "START" button to begin. The belt will start moving at a low speed.
- Adjust the speed using the "+" and "-" buttons. The treadmill supports speeds from 1 to 16 km/h.
- Adjust the incline using the incline buttons.
4.3. Workout Programs
The MAXXUS RunMaxx 4.2i offers 36 pre-set workout programs to diversify your training. Select a program using the "PROGRAM" button and confirm your selection. Each program automatically adjusts speed and incline over time.
4.4. Bluetooth Connectivity (iC+ Training App)
The treadmill is equipped with a Bluetooth receiver for compatibility with the iC+ Training App. Download the app on your smartphone or tablet, enable Bluetooth, and connect to your treadmill to access additional workout options and track your progress.
4.5. Measuring Heart Rate
The treadmill features manual pulse sensors on the handlebars. Grip these sensors firmly during your workout to display your heart rate on the LCD screen. An integrated receiver for an optional radio pulse belt is also available for continuous heart rate monitoring.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your treadmill.
- Cleaning: Wipe down the treadmill surfaces with a damp cloth after each use. Avoid abrasive cleaners.
- Belt Lubrication: Periodically lubricate the running belt according to the manufacturer's recommendations (typically every 3-6 months depending on usage). This prevents friction and extends belt life.
- Belt Tension and Alignment: Check the running belt tension and alignment regularly. Adjust if the belt slips or drifts to one side. Refer to the detailed instructions in the full manual for adjustment procedures.
- Motor Compartment: Keep the motor compartment clean and free of dust. Unplug the treadmill before opening the motor cover.
6. Storage and Portability
The MAXXUS RunMaxx 4.2i is designed to be foldable for space-saving storage and features integrated transport wheels for easy relocation.
6.1. Folding the Treadmill
- Ensure the treadmill is turned off and unplugged.
- Lift the running deck until it locks into the upright position.
- The folded dimensions are approximately L 112 x W 74 x H 130 cm.

Figure 6.1: Treadmill in folded position, showing compact storage.
6.2. Transporting the Treadmill
Once folded, tilt the treadmill slightly and use the integrated transport wheels to move it to your desired storage location. Exercise caution when moving the unit due to its weight (approximately 65 kg).
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Treadmill does not start. | Power cord unplugged; Safety key not inserted; Circuit breaker tripped. | Ensure power cord is securely plugged in; Insert safety key fully; Reset circuit breaker. |
| Running belt slips. | Belt tension too loose; Belt worn out. | Adjust belt tension (refer to manual); Contact customer service for belt replacement. |
| Unusual noise during operation. | Loose components; Lack of lubrication; Motor issue. | Check and tighten all visible bolts; Lubricate running belt; Contact customer service. |
| Display not working. | Loose cable connection; Power issue. | Check console cable connections; Verify power supply. |
For issues not listed here or if solutions do not resolve the problem, please contact MAXXUS customer support.
8. Technical Specifications
- Model: MAXXUS RunMaxx 4.2i
- Model Number: 600005-00019-0001
- Dimensions (Unfolded): L 165 x W 74 x H 130 cm
- Dimensions (Folded): L 112 x W 74 x H 130 cm
- Running Surface: 125 x 44 cm
- Product Weight: 63 kg
- Maximum User Weight: 110 kg
- Motor: 1.75 HP DC Motor
- Speed Range: 1 - 16 km/h
- Incline Adjustment: Yes (Adjustable)
- Display Type: LCD
- Displayed Metrics: Heart Rate, Time, Distance, Speed, Calories Burned
- Workout Programs: 36 Pre-set programs
- Connectivity: Bluetooth (for iC+ Training App)
- Shock Absorption: Cushion-Flex System
- Frame Material: Alloy Steel
- Power Source: AC Adapter

Figure 8.1: Treadmill dimensions (unfolded).

Figure 8.2: Running surface dimensions.

Figure 8.3: Treadmill showing incline capability.

Figure 8.4: Illustration of the powerful motor and user in motion.
9. Warranty and Support
MAXXUS products are known for their quality and durability. For warranty information, service requests, or technical support, please refer to the warranty card included with your product or visit the official MAXXUS website. Keep your purchase receipt as proof of purchase for warranty claims.
Manufacturer: MAXXUS
First Available Date: March 23, 2015





