replacing a treadmill belt | Belt Centering

The treadmill uses tapered rollers to keep the running belt centered, but if the running belt drifts to either side and touches the side rails it will need to be adjusted.
Before making any adjustments, start the treadmill and set the speed to 4KM/H. If adjusting the belt tension screws on the back of the treadmill does not resolve the problem, you may need to adjust the tension on the front roller. This adjustment is available on the right side of the front roller only and will require that you remove the motor hood.  

Belt Drifts to the Right
If the running belt drifts too far to the right side, use the 6 mm Allen Wrench to turn the right tension bolt clockwise 1/2 turn at a time until the belt is properly centered.

Belt Drifts to the Left
If the running belt drifts too far to the left, use the 6 mm Allen Wrench to turn the left tension bolt Clockwise 1/2 turn at a time until the belt is properly centered.

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How to repair treadmill belt | Belt Tensioning

If the belt beings to slip during use, it will need to be tensioned. The treadmill is equipped with tension bolts that are accessible from the back of the treadmill. Before tensioning the belt, start the treadmill and set the speed to 4KM/H. Using a 6 mm Allen Wrench, turn the right and left tension bolts 1/2 turn, alternating back and firth until the belt slipping stops. After each 1/2 turn adjustment, test to see if the slipping is eliminated.
If you turn one side more than the other, the belt will start to drift to the side of the treadmill and need to be aligned.

Over-tightening the belt will cause additional loading where on the mechanical and electrical components on treadmill and often does not fix the problem. If the slipping is not eliminated, try reducing the belt tension to see if the problem is resolved. If this does not eliminate the slipping, you may need to replace the belt. If the belt is replaced, always clean off the front roller to remove any extra lubricant that is present. When cleaning the front roller, make sure that you don’t get any water, detergent or solvent in the bearings or other components on the treadmill.

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Belt for treadmill replacement and adjustment

On our eshop it’s easy to find treadmill parts which are compatible with Weslo, Nordick Track, Tunturi, Nautilus, Technogym, Sportcraft, Golds Gym, Roadmaster, Icon, Sears, Life Fitness and most important brands.

Walking belt removal and replacement procedure

1.    Treadmill motor hood removal
A. Loosen the fixing screws, which are usually on the right and left side of motor hood.  
B. After loosening, pull up to remove the hood.  

2.    Treadmill End Cap and Side Rail removal
a.    Loosen the screws, which fix the end caps, then take off the caps
b.    If the side rail is not screwed, pull it up (stick w/both side stick bond) then remove, but  w/care and prevent to break or damage the side rail.  

3.    Rear Roller removal
a.    Before loosening the Belt Tension Bolts mark the current roller position. You can do this by counting the number of threads on the tension bolt or noting the location relative to the round hole on the side of the mounting bracket
b.    Loosen and remove each belt tension bolt.
c.    Pull up on one side of the roller and pull the roller out from inside the belt

 4.    Front roller removal
a.    Loosen and remove the Belt Tension Bolt on the right side of the front roller.
b.    Remove the drive belt from the pullets by pulling the belt to the outside with one
hand and rotating the flywheel on the Motor with the other so that the belt
walks off the pulley.
c.    Pull up on the left side of the roller and pull the roller out. 

5.    Treadmill Running belt removal
a.    Remove the deck screws on the right side of deck which connecting to frame with a
Phillip/Cross screwdriver.
b.    Slide and pull the belt treadmill out. 
6.    Use a silicon lubricating spray on the inside of the belt before installation, then slide the new belt inside the treadmill.
7.    Reverse the steps to finally fix the belt.

how to fix a treadmill | original technical documentation OMA treadmill manufacturer

OMA is one of the most famous treadmill manufacturer, let's see the error codes provided by their technical dept.

Following codes are based on 16004 treadmill but do apply also for other models.

Need replacement parts? Buy them here:

1. Running/Walking Belt for treadmill  
2. Treadmill safety key 
3. Treadmill drive belt (J6)
4. Speed sensor for treadmill 
5. Treadmill running deck 
6. Treadmill controller 220 to 240 VAC input (Europe / Asia / Australia) 
7. Treadmill controllers 110-120 VAC input (North America)
8. Treadmill motor 
9. Treadmill motor parts, brushes, holders, fans 
10. Transformers, chokes, breakers, cables 

Running Belt Tension Adjustment

Caution:
Over-tightening of the roller will severely shorten the life of the belt and may cause further damage to other components.

Running Belt:
If when you plant your foot on the belt, you can feel slipping sensation then the belt has stretched and is
slipping across the rollers. This is a normal and common adjustment on a new treadmill.    
To eliminate this slipping, rotate the two Allen bolts of rear roller by 1/4 TURN as diagram shown.
Try the treadmill again to check for slipping.    Repeat if necessary, but NEVER TURN the roller bolts more than 1/4 turn at a time.
 
The right tension of running belt is 0.9 - 1.1 lb.

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Treadmill Error Troubleshooting

Errors for Lohas Strengthmaster Range, MCB SMM2100 and SMM2150

Treadmill Error E1
1.    Check the speed sensor connections, ensure they are fitted correctly.
2.    Check for any damage to sensor or magnet in rollers pulley.
3.    Note: the sensor and magnet should be within 2 – 3 mm of each other.
4.    If E1 still there contact your local distributor for assistance.

Treadmill Error E2
1.    Check all wiring to MCB, PCB and Motor.
2.    If E2 still there contact your local distributor for assistance.

Treadmill Error E4 (Only with HRC program)
1.    Ensure you have a good grip on Heart rate sensors on the handlebars.
2.    Make sure hands are moist (Aloe Vera helps)
3.    If using the wireless HR straps please follow as per owners manual.
4.    Check battery.
5.    Check all wiring to and from the Incline motor.
6.    If E4 still there contact your local distributor for assistance.

Treadmill Error E6
1.    Check all wiring to and from the Incline motor.
2.    If E6 still there contact your local distributor for assistance.

Treadmill Error E7
1.    Check all wiring to and from the Incline motor.
2.    If E7 still there contact your local distributor for assistance.

Treadmill Error E9
1.    Check all wiring from Base to console.
2.    If E9 still there contact your local distributor for assistance.

Treadmill Error N/A
1.    If the console is not lighting up or is erratic, check power is correctly connected. Check Safety Key is also in place.
2.    Running belt won’t stay centered, ensure treadmill is on a level surface, or refer to the instructions in this owner’s manual on how to adjust belt.
3.    Treadmill motor seems strained; check the running deck and belt have sufficient lubrication.
4.    Treadmill belt slips during use; refer to the instructions in this owner’s manual on how to adjust belt.