Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

1 Answer

GDO repair Nylon drive gear is worn out. Motor screw gear looks fine. Manual operation seems smooth and balanced. The motor seems plenty perky on this older chain driven opener. Is the nylon gear still available from Sears? I copied several numbers from the face plate, none of which were listed as model numbers. 41A4315-7A (listed as a part number) seemed long enough to try. The product field for this posting would only accept the LiftMaster entry. This product is a Craftsman 1/2 hp which is apparently not considered a valid entry for that field.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 244 Answers

If unit is pre 1993 (Safety beam era), Sears will not sell you any parts. Google Liftmaster gear kit. Buy for $25-30. Not hard if you are handy. Buy the complete kit with bearings.

Posted on Jan 15, 2009

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,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Left rear window went down and won't go up


Posted this earlier...similar problem..


First do you hear it trying to work, is it like a "clack, clack, clack" sound? or you hear the motor running smoothly? You will need to remove the door panel and take a look behind the plastic water seal to see whats going on, it is either going to be the regulator ( part the motor is attached to...cable broke)/damaged or more likely the nylon bushings inside the motor itself, they run like 10 bucks on Amazon. If you take the motor out of the regulator assembly be careful not to let the cable system come apart/unwind( use nylon ties while motor is out to hold in place). The motor itself is straight forward open/replace worn/falling apart nylon bushings/relube/reassemble. The tricky part is not screwing up the regulator assembly...depends on your skills.

Mar 18, 2013 | 1999 Mercury Mountaineer

1 Answer

Left rear window won't go up


First do you hear it trying to work, is it like a "clack, clack, clack" sound? or you hear the motor running smoothly? You will need to remove the door panel and take a look behind the plastic water seal to see whats going on, it is either going to be the regulator ( part the motor is attached to...cable broke)/damaged or more likely the nylon bushings inside the motor itself, they run like 10 bucks on Amazon. If you take the motor out of the regulator assembly be careful not to let the cable system come apart/unwind( use nylon ties while motor is out to hold in place). The motor itself is straight forward open/replace worn/falling apart nylon bushings/relube/reassemble. The tricky part is not screwing up the regulator assembly...depends on your skills.

Mar 18, 2013 | 1999 Mercury Mountaineer

1 Answer

I have a 6 qt kitchen aid mixer and the gears look fine all metal, it makes a humming noise but nothing moves. Any suggestions


If you haven't solved this problem yet, I have a couple suggestions.
Take off the motor housing, be VERY careful where the exposed electrical contacts are, then plug it in and turn on the motor with no gears attached. If it spins, cycle through the speeds to make sure they all work, then if they do, revisit your gears. Turn them all by hand and make sure they move easily and smoothly. Make sure the teeth aren't too worn down. I don't know what model you have, but also check anything that holds gears on or in place to make sure they aren't loose or cracked.
If the motor does not spin, look at the brushes (you could start by doing this if you wanted to, since they are far easier to take apart than the motor housing, but my guess is this isn't the problem). If the brushes are worn down to near the spring, buy new ones. If the brushes look fine, then either get real brave and pull open the motor to look for broken or worn out parts, or call an electrical engineer friend, or send it off to kitchenaid or a repair shop.

Oct 30, 2012 | KitchenAid KP2671 Professional 6 Series...

1 Answer

Blades won't turn - motor seems ok


It is most likely a stripped gear and most likely the worm gear which is driven by the motor shaft. Here is a link to the parts manual which contains the listing of the gears and shows you how to split the gear case.

http://shared.whirlpoolcorp.com/assets/pdfs/literature/Repair%20Part%20List%20-%208212010.pdf

Remove the chrome ring with a screwdriver by prying it off carefully. This exposes 5 screws, however they can't be accessed on all models. Remove the pin (17) that goes through the planetary housing and the drive shaft, and carefully drive the planetary housing from the shaft to expose the screws. Then remove the two remaining screws and split the case to expose the gears. The worn gears will be obvious. Also check the bearings. Replace all affected parts. Remove all grease since gear pieces will have contaminated it from any worn out gears. The grease is a special food grade grease which you can purchase along with the gears and bearings.

Apr 06, 2010 | KitchenAid KSM150PS Artisan Series Stand...

3 Answers

I have a Craftsman 1/2 HP Garage Door Opener part # 41A4315-7. The D.O.C. cert # is K1027 and the date is 3/93. Several months ago the garage door opener ceased to function. I do not remember the symptoms...


I was not at all pleased with the service provided by FixYa.
I spoke to two different professionals and their responses did NOT help me solve the problem.
Their responses sent me on a time wasting series of steps that were not productive.

Both pros told me the problem was probably with the motor in the Garage Door Opener.
One told me I had to remove and disassemble the motor to read the windings with a multimeter.
I’m glad I didn’t follow his instructions.
Based on two pros telling me it was the motor (which I did not believe) I did a test.
Here was the process for testing the motor:
This is a dangerous process for a person with limited skills.
The test is done with the GDO in place, the cover removed, chain disconnected and power unplugged.
You will need a standard electric appliance power cord with either a two or three prong plug (pigtail).
The other end will be bare wires.
I used a 2 prong cord removed from an old steam iron but any power cord will work.

Remove the white supply wire from the light bulb socket in the GDO.
Attach one lead from the power cord to the white lead and cover all exposed copper wire or connector with insulating electrical tape.
If you are using a 3 prong plug, fold the green ground lead back out of the way and tape it to the power cord.
Make sure the remaining bare wire lead is not touching your body on anything metallic, then plug the power cord into the same socket you would plug the GDO.
NOW THE REMAINING BARE WIRE LEAD IS HOT. TREAT IT WITH CARE!!
Carefully touch the remaining HOT bare wire lead to either the RED or BLUE leads from the capacitor to the motor.
The motor should run.
Mine did just fine …. Nothing wrong with the motor.
I then touched the HOT lead to the other (Red or Blue) capacitor lead and the motor reversed direction …. Perfect.

I don’t know if this is a valid test of the capacitor, but I then touched the bare HOT lead to the Red then the Blue leads INTO the capacitor.
Again the motor ran fine and reversed direction.
I deduced that the capacitor was also working.
There is very little clearance for this last step so do it carefully.

After verifying the motor and capacitor were not the problem I started retracing all other power supply factors.
Ultimately I found I had reversed the bell wire leads from the door safety sensors when I reinstalled the GDO.
I had connected the hot lead from the left sensor to the right sensor input.
This is very easy to do because the two leads are identical.
The GDO will not operate with these leads reversed.
I corrected the connections and the GDO now works perfectly.
This could have been a 10 minute fix if either pro had asked the right question.
I don’t think either pro is aware of this requirement.

When I signed up for the chat the web site indicated I would be charged $12.99.
Now I find I am being charged 19.99 for bad information.
I doubt I will use your service again.

Jim Shane

Dec 01, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

GE dryer is getting louder when running


most common cause is the failure, or wear of the rollers at the rear,
the drive belt places a lot of torque on the drum, and it has rollers to support this force, in addition to nylon guides as the front has

good roller
620711e.jpg
worn roller
360f8b6.jpg

most dryers access from the front, the front panel and door come off,
here are generic removal instructions

with dryer unplugged examine lower front panel.
If there are two screws at lower corners
  • remove screws
  • swing front panel up from bottom
  • unhook top clips
  • undo door switch wires
  • set panel and door aside
If there are no screws
  • remove llint screeen from top
  • remove 2 screws from under lint screen
  • with putty knife or other blunt blade
    push spring clips at front top corners
  • tilt top up
  • remove 1 screw each side 1/3 way from top of dryer
  • tilt front panel down
  • undoor door switch wires
  • set front panel aside
Common to both
  • reach under drum to belt tensioner, pull tensioner to end of spring travel
  • unhook belt from motor and tensioner
  • withdraw drum forward
  • examine rollers felts nylon guides
replace rollers in pairs if worn
replace nylon glides if worn
replace felts if worn, the back one may wear before the front one, if the dryer is the open drum type,

Oct 17, 2008 | Dryers

3 Answers

Chamberlain Power Drive 1/2 HP - motor runs but does not move chain


I have the same problem. I just removed the cover and discovered a nylon gear had been worn out. I found lots of shavings inside the cover. The nylon gear is beneath the exterior chain gear. I am looking for information on how to replace it, if I can find the part. If you decide to look at yours, unplug the power and remove the sheet metal screws securing the bottom portion of the cener cover to the front and back covers. Then just remove the upper screws from the center cover. Good luck.

Oct 08, 2008 | Chamberlain Powerdrive PD422D 1/2 HP...

5 Answers

How to disassemble Fellowes P70CM Shredder


Agreed, there is a seventh screw under the label, as wstrooper suggests. Press along the label and you'll find the tell-tale indentation!
Having taken it apart (a further 4 screws to remove the nylon housing from the base, and another seven to remove the nylon covering for the gears), it has revealas a stripped gear (the one nearest the motor), caused by too many sheets of paper being fed in.
This problem seems to repeat amongst several P70CM owners. Shame the motor doesn't have a cut-out if it hits too great a resistance, rather than strip the gear of its teeth.

Jul 27, 2008 | Fellowes P70CM Shredder

1 Answer

Motor runs both forward and reverse, but cutters don't turn


How about a hidden 7th screw? If you look at the sticker on the underside where the bar code is you may see a dimple like there is a hollow space under it. If you can't see it, rub your finger over it to find the hole. Just stick your phillips screw driver through the sticker to get access to this last screw. As for the motor working both directions but the cutter doesn't turn it is most likely a broken nylon cog on the drive gears within the white plastic housing at the end of the shredder. There are 3 or 4 gears - all nylon (plastic), my unit had one tooth completely broken off and the one next to it was worn. I am looking into finding parts but I'm not having any luck so far with local service centres. I have a call into the fellowes main 1-800 number to see if they can help. On reviews I have seen this is a common problem. One reviewer was told they use nylon to reduce noise, but of course it isn't going to last long, especially if you ever jam. Nice metal cutters but the weak link is the drive gears that you can't see.

Oct 16, 2006 | Fellowes P600C-2 Shredder

Not finding what you are looking for?
Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+ Logo

324 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Mike

Level 3 Expert

4336 Answers

Cindy Wells

Level 3 Expert

4979 Answers

Brad Brown

Level 3 Expert

15212 Answers

Are you a Sears Building Material Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...