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Lemond Revmaster Lemond G-Force Digital Upright Exercise Bike Questions & Answers
Bottom Bracket & Spindle Replacement of LeMond RevMaster
Part 1 Video Discussing the Dis-assembly & Inspection of the Bottom Bracket & Spindle for a LeMond RevMaster Bike
- This Part 1 video will demonstrate how to inspect and adjust or remove and replace the bottom bracket and spindle on your Lemond Revmaster
- Tools needed for this procedure:
- 8mm Allen Wrench or Socket
- Cotterless Crank Puller Tool
- Lock Ring Removal Tool
- Bottom Bracket Tool
- Phillips Screwdriver
- 4mm Allen Wrench
- Bungee (optional)
- Rubber Mallet
- 7/8" Wrench
- To begin remove the belt cover, there are four screws
- You will need a 4MM Allen wrench
- Now remove the two screws on the back from the opposite side of the bike
- You will need a Phillips screwdriver
- Now position the crank arm as seen in the video and remove the belt cover from the bike
- Before removing the drive belt, tighten the brake assembly so that the flywheel is locked in place and loosen the torque on both bolts using an 8mm Allen wrench or socket
- Do not remove them at this time only loosen them by a half a turn or so
- Using a 7/8" wrench loosen the belt idler
- Now use a 4mm Allen wrench to loosen the tension adjustment bolt completely, but do not remove it from the frame
- Now remove the drive belt
- To aid in this process you can use a bungee to slide in behind the belt at the top, as shown in the video
- Then pull away from the bike while spinning the crank arms
- Now remove both crank bolts with a 8MM Allen wrench or socket
- Removal of the crank bolt on the left side of the bike is the same as removal from the right side
- Now remove the crank arms with a crank arm puller, threading the outer portion into the crank arm as shown in the video
- Be sure to thread the outer portion in as far as possible to prevent damage to the crank arm threads or the tools threads
- Use a 7/8" wrench to make sure the outer portion is threaded in completely
- Now spin the handle clockwise to press the crank arm off of the bike
- Be careful when the crank arm comes off as if you are not holding it, it can fall in the floor
- Also use the wrench to loosen the tool before removing the crank arm from the unit
- Now you can unthread the tool from the cranks arm by hand after removing the crank arm from the bike
- Next inspect the bottom bracket cups for looseness, to do this use the bottom bracket tool by hand to see if you can turn either of the bearing cups
- To further verify the adjustment of your bottom bracket use a rubber mallet to tap lightly on each side of the spindle to check for movement from side to side, if you have movement, or one or both of the bearing cups is loose, you need to re-adjust the bottom bracket. If you are only inspecting the bottom bracket and did not find any need for adjustment you would re-assemble the bike at this point
- Once the crank arms are removed look closely at the spindle
- It should have defined edges and be smooth
- As you can see by the video our spindle needs to be replaced
- Next you will need to remove the lock ring
- The lock ring is around the bottom bracket cup on the left side of the bike
- In the video is an example of a lock ring
- To use the lock ring tool you slip it over the lock ring using the three notches and torque the lock ring in the proper direction
- This one needs to be turned counter-clockwise to loosen
Then remove the lock ring by spinning it off the bearing cup
- Next you will need to use the bottom bracket tool to remove the bottom bracket cups
- Begin with the left side
- Slip the tool into the splines of the cup and loosen
- For stubborn bottom brackets use a 5/16"-24 x 2" bolt and some washers with a 1-1/4" wrench
- Slip the tool into the splines and thread the bolt with the washers into the spindle
- Get it snug but not completely tight
- Now use the wrench to turn the cup counter-clockwise for the left side and remove it completely
- Remove the cup from the right side now
- Slip the bottom bracket tool into the splines of the cup and turn it clockwise to loosen
- For stubborn bottom brackets use a 5/16"-24 x 2" bolt and some washers with a 1-1/4" wrench
- Slip the tool into the splines and thread the bolt with the washers into the spindle
- If you cannot get the cups loose with this method try turning the bike on its side to get better leverage as shown in the video
- This concludes the dis-assembly and inspection procedure of the LeMond RevMaster bottom bracket & spindle
- Click here to see Part 2, re-assembly and installation to complete the replacement procedure
Video of Bottom Bracket and Spindle Replacement Part 1 Dis assembly LeMond...
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What is the maintenance required for folding exercise bikes?
Cleaning: Regularly wipe down the frame, seat, pedals, and any other accessible surfaces with a damp cloth to remove sweat, dust, and debris. Avoid using harsh chemicals that may damage the bike's finish.
Lubrication: Apply lubricant to the moving parts such as the hinges, pedals, and resistance mechanism according to the manufacturer's recommendations. This helps prevent rust and ensures smooth operation.
Tightening: Periodically check and tighten all bolts, screws, and nuts to prevent loosening during use. Pay particular attention to the folding mechanism to ensure it remains secure.
Inspecting: Examine the bike for any signs of wear or damage, such as frayed cables, worn pedals, or loose components. Address any issues promptly to prevent further damage and ensure safety.
Storage: When not in use, fold the bike properly and store it in a clean, dry area away from moisture and direct sunlight. This helps prolong its lifespan and prevents corrosion.
Battery maintenance: If your folding exercise bike includes electronic components such as a display console, ensure that the batteries are replaced as needed to maintain proper functionality.
Regular servicing: Consider scheduling periodic maintenance checks with a professional technician to ensure all components are in good working condition and to address any potential issues before they escalate.
Promaster pro plus 2 error code 31
Error 31 on your Promaster Pro Plus 2 treadmill could indicate a variety of issues, such as a problem with the motor or the motor controller. Here are a few troubleshooting steps you can try:
- Power cycle the treadmill: Turn off the treadmill and unplug it from the power source. Wait for a few minutes, then plug it back in and turn it on again. Sometimes, simply resetting the treadmill can resolve error codes like Error 31.
- Check the motor connections: Make sure all the wires and connections to the treadmill motor are secure and properly connected. Loose connections could cause error codes to appear.
- Inspect the motor controller: The motor controller regulates the speed and operation of the treadmill motor. Check for any visible signs of damage or overheating on the motor controller. If you notice any issues, you may need to replace the motor controller.
- Contact customer support: If you're unable to resolve the issue on your own, it's best to contact the manufacturer's customer support for assistance. They can provide specific troubleshooting steps for your treadmill model and may be able to offer a solution or arrange for repairs if necessary.
By following these steps, you can hopefully resolve Error 31 on your Promaster Pro Plus 2 treadmill and get it working again.
Treadclimber TC 200 treadles rubbing in the middle
Check Alignment:
First, ensure that the treadles are properly aligned. Misalignment can cause rubbing. Make sure the treadles are parallel to each other and evenly spaced.
Tighten any loose bolts or nuts that secure the treadles to the frame.
Inspect the Walking Belt:
Examine the walking belt for any signs of wear, fraying, or damage. A damaged belt can cause uneven movement and rubbing.
If the belt is worn out, consider replacing it.
Lubricate the Bolts and Joints:
Apply lubricant (such as silicone spray) to the bolts and joints where the treadles connect to the frame. This can reduce friction and prevent rubbing.
Be cautious not to over-lubricate, as excess lubricant can attract dust and debris.
Check for Obstructions:
Look for any foreign objects (dirt, debris, or small items) that might be caught between the treadles or near the alignment bolts.
Remove any obstructions to ensure smooth movement.
Inspect the Alignment Bolts:
Make sure the alignment bolts are properly adjusted. They should be tightened enough to prevent excessive movement but not too tight to cause rubbing.
Adjust the bolts if necessary.'
Test the TreadClimber:
After performing the above steps, test the TreadClimber to see if the rubbing issue persists.
If the problem continues, consider contacting the manufacturer or a professional technician for further assistance.
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