Hi Sarah

here's the outline for our flat fix session that's part of our "wenches with wrenches" classes at the Community Bicycle Network.

from Kathleen
Toronto Canada

Lesson Plan for “Flat Fix” Session

Props:

Class introduction:

Instructions:

1.Remove wheel

2.Remove tire

3.Patch or replace tube

4.Install tube and tire

5.Install wheel


Lesson Plan for “Flat Fix” Session



Props:

Tire

Tube

Patch kit

Pump with tire pressure gauge


Class introduction:


  1. Review of tools to be used and care:

    1. Wrench (don’t drop/throw these)

  1. Tire levers (don’t put too much torque that may break plastic levers)

  2. Pump (apply to valve in direct motion, don’t kink/pull on tubing, don’t drop pump with gauge)

  3. Repair kit: scraper, patch, cement glue (keep cement glue tube tightly capped to limit drying/evaporation)


    1. Point out parts:

      1. Tire: check out how far it extends beyond rim to note need to release brakes

      2. Valve: look for which kind it is: Schrader or Presta

      3. Tire size and pressure

      4. Kind of tire: mountain, road, hybrid


    1. Flat fix Class Layout

      1. Removal of wheel

      2. Removal of tire

      3. Patch or replace tube

      4. Install tube and tire

      5. Install wheel


Instructions:

  1. Remove wheel


    1. Release brakes by quick release method if available

    2. For rear wheel, position the chain on the outermost cog of the freewheel

    3. Undo nuts or quick release

    4. Tire should be deflated if flat, if not then deflate by holding valve open

    5. Remove wheel, taking care to get past brakes and derailleur


  1. Remove tire


    1. Check tire for foreign objects (if not removed, they will just puncture the tube again once put back in)

    2. Use tire levers to remove one side of tire

    3. Pull out tube but leave valve in to make it easy to locate area on tire that may have a tiny foreign object

    4. Inflate tube to identify hole (check for more than one hole)

    5. Match hole in tube to tire

    6. Clean out cause of flat if present (check the rest of the tire also to ensure foreign object hasn’t fallen into the tire)


  1. Patch or replace tube


    1. Scuff up tube (use file to roughen up surface of tire)

    2. Apply glue bigger than patch

    3. Let glue dry (test tackiness of glue) [cement glue is not actually a glue, but rather a chemical agent that causes the two surfaces to bind together at a molecular level]

    4. Apply patch (and apply pressure for a few minutes which ensures the binding of the two surfaces)


  1. Install tube and tire


    1. Partially fill tube ( this will make it easier to put back in, and stop it from getting twisted)

    2. Install valve in rim and position tube in tire making sure tube doesn’t get twisted (make sure valve comes straight out of the rim and not at an angle as this can lead to rubbing of the side of the valve eventually cutting it off)

    3. Push bead of tire onto rim

    4. Use tire levers if necessary (do not pinch tube)

    5. Inflate tire to recommended pressure (as listed on outside of tube/tire)

    6. Check that tire is seated properly (sometimes the bead can jump out if not originally well placed in the rim)


  1. Install wheel


    1. Set chain in proper cog

    2. Slip wheel past derailleur and brakes

    3. Line up wheel in dropouts

    4. Tighten nuts or quick release

    5. Do up brakes

    6. Check that wheel spins freely


Keep it Real


On Fri, Mar 26, 2010 at 4:37 PM, Sarah Follett (B!KE) <questions@communitybikeshop.org> wrote:
Hello all,
Rather than reinvent the wheel, I thought I'd turn to the great collective resource that is the Think Tank.
I was wondering if anyone had a fun handout with steps for how to fix a flat.
I'm doing some high school visits with tutorials, and I think having a reference on paper is the only way I'm going to be able to manage to teach a class of 20 youth all at once!
Thanks in advance!

Sarah Follett
Director, B!KE: The Peterborough Community Bike Shop
400 Wolfe St
Peterborough, Ontario
(705) 748-6681






_______________________________________________
Thethinktank mailing list
Thethinktank@bikecollectives.org
To unsubscribe, send a blank email to TheThinkTank-leave@bikecollectives.org
To manage your subscription, plase visit:
http://lists.bikecollectives.org/listinfo.cgi/thethinktank-bikecollectives.org