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Kamis, 31 Maret 2016

diy aquaponics siphon | Hand Pruner Maintenance 101

diy aquaponics siphon


Are your hand pruners rusty?  Crusty?  Squeaky?  Blunt?  Have you tried to clean and sharpen, but its just not doing the trick?  If youre anything like me, Ive been doing my best to keep my hand pruners (or secateurs) clean and sharp without disassembling.  I was afraid Id lost a small part, put the pieces back in the wrong order, or just plain old break them. 

These instructions are written
for Felco bypass pruners, but
you should be able to adapt for similar
Fiskar or Corona bypass pruners
Well, Im here to tell you that its not rocket science folks.  Ive seen the light, and its time to clean your pruners.  Let me show you how.  Remember, there are step-by-step photos in the "Pruner Maintenance 101" album on the Plante on Plants Facebook page.  It may help to follow along.

Felco bypass pruners are one of the most common types of secateurs used in the horticulture industry.  Thats why the images and information in this blog post will be customized for Felco users.  However, if you have any Corona or Fiskars pruners that are professional grade (not covered in plastic), then this information can be adapted for you. 

If youre not a Felco fanatic, dont despair.  When I get home from my internship with Kew, the first thing that Ill do is use these methods to clean my Corona and Fiskars pruners.  Ill try to remember to take photos and update this.

To clean your hand pruners, youll need
  • Your hand pruners
  • An appropriate screwdriver, or the handy Felco adjustment key that came with your pruners
  • A small hand wrench, or the handy adjustment key
  • A small cup or box
  • A soft cloth
  • Steel wool
  • A small (roughly 4 inches) length of yarn or pipe-cleaner
  • A soap and water mixture
  • 3-in-one oil (not WD-40)
  • A sharpening stone
Disassembling

Lay your secateurs on the table so that the hand lock is facing upwards.  Start by removing the bolt on the right handle.  Thats the one that isnt attached to the lock. If you have your maintenance tool, lay the appropriate sized hole over the bolt to loosen.  Remember, "lefty loosey, rigthy tighty".  When loose, place the tool on its side into the top grove of the bolt to remove.  Set the bolt and the small piece from beneath the bolt in a small cup or box so they wont get lost.

A Felco adjustment key will come in handy.
If you lost yours or dont use Felcos, substitute
with a small screwdriver and wrench
Next, use a small hand wrench or your Felco tool to remove the large bolt that holds the two handles together.  A quarter or half turn should loosen the bolt sufficiently so you can finish unscrewing with your hands.  Set the bolt, the grooved circle, and the cover aside in your cup.

Now you should be able to carefully separate the two handles.  Once they are side-by-side, you can gently remove the spring that connects the handles.  Set the spring aside.

Finally, remove the blade.  It should be attached to the left handle that has the hand lock.  Be careful as it is probably sharp.

Cleaning

Use the dry cloth to wipe off as much soil and grime as possible from all pieces of the secateurs.  Apply a small amount of soapy water to the cloth and try to scrub off as much soil and grime as possible.  Use the steel wool to remove all remaining grime.  Wipe off one more time with the dry section cloth.  Make sure there are no bits left that are wet from water.  Clean tools and happy tools, so do your best to make these sparkle.

Follow the steps outlined in
this section to clean your pruners
Next, grab the piece of yarn or pipe-cleaner and the spring that connected the handles.  Run the yarn or pipe-cleaner though the center of the spring.  Rotate the spring so the yarn rubs against the whole inside surface of the spring.  That should remove the dirt that has collected inside.  Repeat as many times as necessary.

Once all the pieces are clean, use a small amount of the 3-in-one oil to lubricate all moving parts and pieces that rub together.  Dont forget to add a bit to the spring too.  Use a corner of the dry cloth to clean off excess oil.  A small amount of oil should go a long way here, so try not to overdo it.

Sharpening

By now your blade should be shining clean and ready for sharpening.  You only should sharpen the side of the blade that has a beveled edge.  The flat side should not be sharpened.  When you identify the beveled bit, youll be able to see that that is where you need to regain your edge.

Only sharpen along the beveled edge
Use the sharpening stone of your choice.  Kew uses a wet stone, but I use a small inexpensive hand sharpening stone at home.  With some minor differences, this process should be relatively similar despite the type of stone. You should run the beveled edge of the blade along the stone slowly and deliberately.  Try to maintain a smooth edge without chinks or gaps.  When the blade is sufficiently sharp, stop.  If you overdo it on sharpening, then youll need to order a new blade much sooner than you would need to otherwise.

Give the blade a final pull across the stone so the whole length of the edge is pulled along the stone. This should pick up any small shards of metal lingering on the blade.

Put the pieces back together

This step can be a bit tricky.  Its almost as easy as just walking back through the earlier disassembling steps, but there are a couple spots to look out for. 

As a reminder, start this process with the handle that has the lock on the left and the other handle on the right.  Reconnect the handles with the spring, place the blade back on the left handle facing the correct direction, and reconnect the handles with the bolt through the back.

Before finishing tightening the
main bolt, place the left two spokes
of the lower claw in the gear piece.  If none
of that made any sense, check out the
Facebook album for more.
Place the base-plate, gear and the bolt cap over the main bolt.  Make sure the lock is in the grove on the base-plate that lies below the gear.  Turn the bolt cap until it is finger tight.  Dont fully tighten yet, but this should be tight enough so the wrench or Felco tool only need a quarter turn to finish.

Line up the small piece from below the right handles bolt with the hole for the bolt so that only the two left-most groves fit in with the gear.  Place the bolt in the hole and make it finger tight.  Use your small wrench or Felco tool to turn the large connecting bolt a quarter turn or so.  The gear should pull the claw piece into place. 

Take your time and do this as many times as necessary until the piece is in a spot where the pruners will function.  If youre having trouble, this would be a good time to stop, wash your hands, and enjoy some milk and cookies, then come back and finish.

And... voila!

Congratulations!  By this step you will have disassembled, cleaned, sharpened, and reassembled your pruners.  Try them out a bit.  Keep an eye out for these common mistakes:
  • Forgot to oil!
  • The main bolt is too loose so the handles wiggle
  • The main bolt is too tight so the pruners dont move easily
  • The lock isnt lined up in the right place and the pruners wont lock shut
  • The claw isnt in place with the gear
If any of these happened to you, youll need to partially disassemble, fix, then reassemble.  Thats nothing to be ashamed of -- it happens to the best of us.  If you start to get frustrated, take another break for milk and cookies.

I wish Id had this information years ago.  A little maintenance knowledge could have saved me from dully, dirty, poorly maintained tools.  When your tools are clean and sharp, they last longer.  When theyre dull, dirty, and you dont know what to do about it, its tempting just to buy another set.  This exercise may be a bit frustrating and somewhat time consuming, but it will save money and give you a sense of pride in your tools when youre done.

Thanks for reading!

If you have any questions, comments or suggestions, please feel welcome to leave a comment or send me an email.

To see more photos from this week, be sure to check out the album "Pruner Maintenance 101" on the Plante on Plants Facebook page.  "Likes", shares and comments are appreciated.

Have you ever had a maintenance activity go terribly wrong?  Do you have any tips, feedback or advice?  I want to know!  Please share your experience by commenting.




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