Question about Primo Hollowbite Pro Mid BMX Bike Crank - 175mm - Polished

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I have a primo hoolowbite bmx crank and i cant get my pedals to come off and i found a little piece that turns and screws off but after that the pedals still dont move ....how do i remove my pedals?

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1 Answer

Crank has become loose


John,
If this is a one-piece crank (both crank arms and the axle are all one piece) then you would need to tighten the bearing. This has an adjusting nut and a large locknut. There are special tools for this, but you can get by with a pipe wrench for the lock nut.
However, if this is a three-piece crank, then you probably have a loose crank arm (or two). The axle (which you cannot see) has square ends (about 1/2 inch) that are tapered toward the end (just a little smaller). The cranks have correspondingly tapered square holes. You simply have to tighten the nut or bold on the end of the axle to draw the tapered parts together tightly. There is probably a little cap covering the nut or bolt. The cap usually unscrews with a straight screwdriver. Common size for the nut or bolt is 14 mm. You will need a thin-wall socket for this, or a special crank-arm wrench. Park Tools is a great source for the special tool and lots of how-to info and videos. Good luck.

Feb 12, 2013 | Diamondback Joker 20 Boys' Freestyle BMX...

1 Answer

NordicTrack SL710 pedals slip and make a clicking noise?


1
Kneelnext to the left side of the elliptical's base. Use the Phillips screwdriver totighten the two screws located in the center of the left pedal.2
Use theAllen wrench to remove the bolt securing the left pedal arm to the pedal legand body arm. Use the Phillips screwdriver to remove the screw securing therear end of the pedal leg to the crank arm.3
Pull theend of the pedal leg free of the crank arm. Wipe the crank arm clean, thenapply a fresh coating of machine grease or silicone lubricant. Replace the endof the pedal leg back onto the crank arm and use the previously removed screwto secure it back into place.4
Join thefront end of the left pedal arm to the ends of the pedal leg and body arm. Usethe previously removed bolt to connect the pieces together.5
Move to the right side of the elliptical and repeatthe above steps on the right pedal arm

Oct 31, 2011 | Nordic Track NordicTrack Treadmill, A2550

1 Answer

So my Dynacraft Next turbo bicycle crank arms and pedals were wobbling and found out the issue was a bent bearing.So instead of taking it apart,we decided to hammer the bent bearing back into the crank...


the little balls are the bearings, ie: ball bearings, so they are the size, take them to a bike shop and get a replacement kit.
Your crank is probably not bent , it takes a big crash or something to bend one. there is an adusjment nut and lock nut to set them back up. could be LH thread on the left hand side

Feb 12, 2011 | Dynacraft Next Turbo Children BMX Bike

1 Answer

Can i convert my old one piece crank to a three piece crank using eastern nomad cranks


Yes, but you will need a new bottom bracket (BB). You will need to buy a sealed American type BB.

Dec 26, 2010 | Eastern Nomad BMX Bike Crank 175mm Red

1 Answer

What is the size of the thread of a standard bike pedal?


There are 2 standard sizes:

Standard one-piece cranks 1/2" x 20 tpi

Standard 3-piece cranks 9/16" x 20 tpi.

The Right Pedal (gear side) has a normal thread, the Left has a reverse thread.

Dec 21, 2010 | Huffy Pro Thunder Boys 16-Inch BMX Bike

1 Answer

The crank on my bike is bent so im trying to get the pedals off of my schwinn z force bmx bike but i dont know how. was wondering if you could help?


Hi, As your BMX has 3 piece cranks. Here is how to go about it:

1. Unscrew the plastic cap on the side of the crank - driveside.

2. Take your 14 mm socket and ratchet, unscrew the bolt that holds the crank to the axle. Remove the bolt of both cranks(Left and Right). You can squeeze the handle of the ratchet and the crank together like pliers to give you more leverage.

3. Take the puller and screw it's socket inside the threaded hole of the crank. Hold the crank and turn the puller handle clockwise until the crank arm falls off from the axle by itself. Remove both crank arms.

4. Go to the left side and with the pliers firmly held with both of your hands(This is where the pictures differ, I'm taking a picture at the same time.), unscrew the lockring from the bearing cup.

5. Now again firmly with both hands, grab the bearing cup with the pliers and slowly test the resistance. You do not want to slip here since this will definitely strip the thread on that cup. Hold those pliers hard and go slowly, it should get it going within a quarter turn and then you should be able to unscrew it with your fingers. If not, keep on going and be careful. Remove the cup.

6. Remove the axle and bearing crowns from both sides.

7. Remove the right side bearing cup by unscrewing it in a clockwise fashion. The notch are not very wide, so might have to hold the pliers on the cup with one hand and the handles with the other. Be aware that this cup is often very hard to remove. Again, you can always purchase a specialised wrench just for that purpose.

8. Clean and inspect everything. What you are looking for is a clean and even line on the axle and inside the bearing cups. Any pits in that line will damage the bearings and they will eventually self destruct. Replace any parts that need replacing.

9. Regrease everything, the axle, the cups and the bearings. I use regular green axle grease with a touch of white teflon grease. Make sure that everything you've pulled out of that frame is extra clean, including the hole in the frame where it came from. The most minute piece of dirt can ruin your repack job.

10. Start by installing the right side bearing cup. Screw it in counterclockwise real tight. Insert the bearings and the axle. Insert the bearings in the left bearing cup and screw on the frame. Screw it until you feel resistance. Test to see if the axle turns freely and tug it up and down to see if there is any play. No play? Turns freely? If the answer is yes to both questions, install the lockring on the left bearing cup.

11. Reinstall the crank arms tightly. I would check them again in a few weeks to be sure. When you think it's tight enough, tighten some more. That's it, you're done.

Hope this helps and please vote if so :)



Aug 05, 2010 | Schwinn S2010WMB Z Force 20" Boy's BMX...

1 Answer

Error code 1 on schwinn elliptical 418 how do I fix it. I have replace batteries and unplugged unit. Error 1 shows up as soon as I turn unit on.


E1 error seems to indicate that the servo which controls the elliptical resistance is stuck. Here is how I fixed this (without using a "crank puller", which would be quicker by far).

You will need a very short phillips screw driver (snub nose), a long phillips screw driver, an allen key set, and crescent wrench.

- Remove the batteries from the unit.
- Remove the screws from the plastic housing (with the long phillips screw driver) on the left side. Do not forget the phillips screws at the front - they are smaller screws so don't mix them with the others. This will allow the plastic housing to flex and move around, but not come entirely off.
- Using the crescent wrench, remove the nut holding the left pedal to the crank. Carefully note the order of the washers on the crank attachment.
- Using the allen key, remove the little pedal attachment piece on the left crank arm.
- Using the short phillips screw driver, carefully reach inside the plastic housing on the top and remove the four screws holding the plastic plate on the outside of the fly wheel/crank. You will need to rotate the crank wheel to reach each of the four screws in turn on the inside of the case.
- Pull off the plastic cover for the wheel.
- Reinsert batteries and gently help the revealed cable (bottom) retract the magnet plate. In my case, the servo worked fine again after helping it retract the magnet plate that was somehow stuck/wedged.

Reverse steps to re-assemble.

Jan 16, 2010 | Schwinn 430 Elliptical Trainer

1 Answer

How to replace a crank on a mongoose orbit 2008/9 series. My crank was bent from trying to do tricks so I need to fix my bike I never did this before so I need help


take the pedal off the opposite side that the chain is on the there should be two bolts turn the first one towards the back tire and take the washer out and use a flat head screwdriver to tae the second ne out the same way pull the first set of bearings out then pull it through the frame it might be a little hard but it will come out make sure you take the chain of the sprocket then put everything on the same way

Nov 24, 2009 | Mongoose 20-Inch Gravity Games BMX...

1 Answer

Loose/ broken bracket axel


use a crank arm puller, somthing that looks like this5683e00.jpg, so you wont damage other parts.

May 16, 2009 | Freestyle Mongoose Bmx & Owners Manual -...

2 Answers

Weird noise on my bmx bike


It sounds like you have cracked or broken one or both sealed cartridge bearings if thats what your bike has. If it has ball bearings in races they might be broken. Try loosening your rear wheel enough to take the chain off and then turn your crank. See if theres a funny noise or if it feels a little weird when its turning. If you broke a pedal bearing you should be able to tell just by carefully turning each pedal with your fingers and seeing what it feels like. In any case unless you have the tools to repair it you will have to take it in and get it repaired.

Mar 26, 2009 | Mongoose 20-Inch Gravity Games BMX...

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