Multiple repairs

[Mr Bill]

When you start a repair with a clean injector; its easy to see when you just touch the glass with the seal. However, when you immediately start another repair without cleaning the injector, the left over resin in the injector seeps out and makes it harder to see when the seal is just coming into contact with the glass.
I am curious about how other techs handle this without cleaning the injector in denatured alcohol, which even though I blow it off with air, always seems to leave some alcohol behind.

[Frank EU]

I never* clean our injectors (GW) between repairs, all I do is cleaning and drying the white outer seal, just because we do not want the seal to stick to the glass, nor do we want to introduce resin into the pit before we start the repair process (precuring and all that).
I know that to not clean between repairs goes against what I was told to do while we were trained, but since we do fleets we easily do 5 or more repairs on one location and some 20 or more on just one day, and we store our injectors in a proper fashion (not exposed to uv-rays), we have never ever experienced any trouble. Cleaning between repairs is just a waste of my time.

*Now, this is all different when we work in damp conditions, any resin easily ''absorbs'' water, and water and resin do not go together very well.
So when we have been doing a repair in damp conditions, like rain, we sure clean the injector after we have performed the repair.
BTW: In all situations; we dry out as a standard, using the absolutely wonderfull 12 volt moisture dryer aka Drystar.

Last but not least; we store our injectors upright (thus in the vertical position) not horizontal like you have to when they come in the standard tackle box (here comes our Festool box in), this also requires less cleaning. We've been doing this for years without any problem.

And yes, denatured alcohol is fine. Also make sure to clean the room where the seal is located in, you do not want any resin build-up in there.

[Brent Deines]

We store our injectors vertically as well, and that is the way our tool boxes are designed. If I am doing one repair after another I tap the end seal against a paper towel, use compressed air to blow out the injector and then tap the end seal on a paper towel again. That seems to do the trick for me. If I am going to be more than a few minutes between repairs I always rinse the injector parts in denatured alcohol and blow them out before placing them back in the tool box so they are clean and dry for the next repair.

[GLASSTIME]

Brent,

My plunger also rest in the toolbox in the same position (Vertical)
Should It rest "Open" or "Closed"

I normally ONLY use denatured alcohol after each repair from Ws to Ws.
Not multiple repairs on just one WS. I assume this is OK.

Should the Denatured Alcohol be changed after each washing?

[Mr Bill]

[quote="Time2Shine

"My plunger also rest in the toolbox in the same position (Vertical)
Should It rest "Open" or "Closed"

I would say the plunger should be closed ( forward ) so there is no tension on the spring

[Brent Deines]

Right on Mr. Bill. Always store the injector plunger with the spring relaxed and in your closed tool box. I use a couple of ounces of alcohol in a cleaning jar and change it daily. No need to change it after every cleaning.