Question about Tasco Science & Laboratory

1 Answer

I bought a second hand 5 way microscope for my grandson. The batteries had leaked inside. I cleaned off the leakage using baking soda and then alcohol. after it dried I put in fresh batteries but it won't come on. Suggestions? Also is it possible to get the instruction manual?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,083 Answers

Baking soda will nuetralize the chemicals, but will not clean the contacts sufficiently. You will have to use a fine grit emory cloth or knifeblade, or similar abrasive material, to scrape the compromised contacts, until you get to fresh, uncorroded metal underneath. This will usually restore the unit, and make it operational.
Also check that the switch is good for the light, since they can become oxidized also.
If you're good with a voltmeter, you can ohm out the wiring, or troubleshoot it to find the problem.
If it's a switch, it's usually a swivelling metal contact, so make sure it's clean and making a good connection.
Good luck, and hope this helps.

Posted on Mar 25, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

What's your question? hi if the wire leading to the positive terminal of the battery gets corroded by battery acid can it effect the car in starting. ....


Most certainly. If battery acid is present on top of the battery, the seal between the post and the top of the battery is leaking. Replace your battery and use baking soda and water to clean the battery cable.

Jun 19, 2016 | Cars & Trucks

1 Answer

How do you change battery


Same philosophy regardless of vehicle or equipment.
CAUTION! Battery contains acid which can also be present in general area. Take appropriate precautions.
1) Dis-connect Negative terminal.
2) Disconnect Positive terminal.
3) Remove battery hold down brackets
4) Remove battery from vehicle. Rinse hands to make sure no acid on them
5) Clean terminal connections (battery post clamps). I use a weak solution of baking soda in water and soak the clamps until the foaming stops, then rinse well with fresh water. It's a good idea to rinse the battery tray with the baking soda solution and then water before installing the new battery.
6) Place the new battery in the correct position in the vehicle.
7) Re-install the hold down brackets.
8) Connect the positive cable to the positive battery terminal.
9) Connect the negative cable to the Negative battery terminal.
10) Start engine to check.
11) All done, Make sure the hood is closed.
12) Nap time.

Mar 15, 2015 | Cars & Trucks

1 Answer

Battery exhausted


A solution of baking soda and water will neutralize the battery acid. Use a Q-tip soaked in the solution to carefully clean the contacts. Do not allow the moisture to leak into the camera's interior. Once you have neutralized and removed as much of the acid as possible, carefully polish the electrical contacts. A clean pencil eraser should do the job, but you can also use a small piece of extra fine emery cloth to clean the contacts until they are bright and shiney.

Apr 25, 2013 | Nikon Coolpix L310

2 Answers

1995 nissan maxima On the positive pole side of the battery there is an addition connector attached to the cable, a small red colored plastic clip-on that will seperate into two parts. Inside two contacts...


Here is the name of the cable you ask for:
Battery Cables with Leads .
-You can replace with the new one or just clean.
-Best way and safe to clean battery's corrosion.
-Use baking soda.
-Wet all area that you need to clean then shake baking soda onto it. Make sure all surface get it. let it soap for 5-10 minutes then use nylon brush to brush back and forward for couple minute then rinse with water. After dry use battery corrosion protection to spray on to it. So it will last for a while depend on how good it was cleaned.

Good luck and enjoy

Mai

Dec 26, 2017 | 1995 Nissan Maxima

1 Answer

Kenmore elite ice and freezer smell. Ice tastes disgusting. we have a whole house water filter so the problem is not the water. any thing put in the freezer will end up smelling like the bad ice and the...


Keeping baking soda in the freezer has little chance of actually absorbing any odor causing air because the air is too dense. Two solutions I can recommend is to either turn the freezer to its HIGHEST setting so it doesn't freeze anything and try the baking soda again, or the second is very inconvenient, but I've seen it work, is to unplug the unit and place a container of Damp Rid in it for a couple of days.

Check the inside of the freezer and ensure there are no cracks in the lining as moisture can get in there and cause horrible smells, especially if you have ever put meat (especially poultry) and the package leaked before freezing.

Dec 15, 2017 | Kenmore Refrigerators

1 Answer

2006 Roadster1200 , no start condition. signal and warning lights flash only. what to do ?


I would start with the battery and battery cable connections first.

See if the battery is at a fully charged state. You may have to remove it, and take it to the nearest auto parts store for a load test.

Before you do check the battery cables. More specifically, the battery cable ends on the battery. If there is ANY corrosion present, 'juice' from the battery isn't going to go through. Doesn't take much with those small battery ends. (Turn signals and warning lights don't take poo for electricity to light up)

Clean the battery cable ends, and battery terminals if corrosion is present.
It's best to remove the battery, and clean it. Otherwise the cleaning solution will get all over your Harley, and can be the pits after it dries.

Use old clothes when you do this, wash your hands thoroughly when you finish. DO NOT touch your face or eyes until you wash your hands! DO not use 'Coca-Cola', and watch using baking soda/water solution. Use the solution with caution, because if it gets inside the battery, it will render the battery useless. Be sure to rinse the battery top well with cold water, to flush any remaining residue of baking soda/water solution.

(Baking Soda/Water solution:
20 ounce old pop bottle with 2 tablespoons of Baking Soda, and warm water mixed well)

The second place to look is the battery cables. (You have a separate wire from the Positive battery post for warning lights, etc. You need to look at the main battery cables)
Turn the ignition switch, and turn the headlight on. Is it bright when you turn the headlight to bright?

No?
Suspect the Positive battery cable first. Then the Negative cable. [Check the connection for the Negative cable to the bike's frame. Is it tight? Is rust/corrosion present?
Is the Positive cable connected tight to it's connection?]

Yes?
Then I suggest you have a starter problem. (Starter solenoid, or starter)

[Usually turns out to be corroded battery terminals, and battery cable ends, though for your problem]

Aug 22, 2009 | Harley Davidson XL 1200 R Sporster...

1 Answer

Terrible odor! Washed inside & still stinks! NOW what?


try coffee grounds in it. take and put it inside and leave it in for a while. also have you cleaned out the drain pan yet?

Mar 26, 2009 | Sub-Zero 632 / S

1 Answer

Need directions to clean my tappan oven


1. Add baking soda to a cool oven. Sprinkle a thick layer of baking soda onto the bottom of the oven. Make sure the oven is completely cool before you attempt to do this. 2. Spray the baking soda with water. Using a spray bottle, spray the baking soda down until it is damp, not saturated. The water and baking soda together will help break down the food particles. 3. Continue spraying baking soda as it dries out. Every few hours spray the baking soda down again to keep it moist. Continue this process over several hours, spraying water as the baking soda begins to dry out. 4. Scrape out the baking soda. Scrape the baking soda out of the oven. Food residue will be scraped out with the baking soda. 5. Rinse the bottom of the oven out thoroughly. Yes, you'll still have to rinse out the oven, but next time you cook your food won't have an added taste of oven cleaner.

If I had the rest of your model number I may find what Tappan now Fridgedaire Electrolux reccomends, but this is the least toxic. Have a great day..

Feb 08, 2009 | Tappan TEF242 Electric Kitchen Range

Not finding what you are looking for?
Science & Laboratory Logo

Related Topics:

253 people viewed this question

Ask a Question

Usually answered in minutes!

Top Tasco Science & Laboratory Experts

Tom Chichester

Level 3 Expert

45139 Answers

ray gallant

Level 3 Expert

52149 Answers

Andrew Taylor
Andrew Taylor

Level 3 Expert

21002 Answers

Are you a Tasco Science and Laboratory Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...