I need to remove the back of my wall clock to tighten the hands, someone glued the face on

Check that the hands are tight and also that they are not touching. and jamming. Remove the battery and replace it. Some have a lever to give it a jolt to get moving.

https://www.google.com/search?q=Infinity+group+Pendulum+Wall+Clock

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put the smallest one on first and the longest one second

go to someone who fixes clocks

without seeing the clock .....are you sure it isn't something as simple as the hands ( arms) detaching from the centre spindle which continues to turn but without the hands. Alternatively have the hands become stuck on something on the clock face or become intertwined themselves ? Very simplistic but all I have to offer...

These are general quartz wall clock instructions as I dont know enough about what type/style of clock you have.

Open the access door to the dial and hands of the clock if required. Some battery-operated clock movements are sealed inside the clock case with a back panel that is screwed in place. To gain access to the hand set knob, remove the back panel screws using the appropriate tipped screwdriver.

Turn the minute hand (or turn the hand set knob at the rear of the movement if access is available) carefully counterclockwise or clockwise until the correct time is reached. Keep in mind that using the hand set from the rear would require turning the knob in a clockwise direction in order for the hands to turn counterclockwise.

Move the hour hand carefully with your fingers near the center of the hand to the hour that the clock is striking if the striking chime is not counting the correct hour. The hour hand is a friction fit hand and will move without engaging the minute hand.

Replace the back panel and tighten the screws with the screwdriver if removal of the back panel was necessary to access the hand set knob.

Close the front access door if required.

mcdevito75 here, If the old clock works are Quartz, you may not be able to get a new Quartz movement as it may not be made anymore, BEST BET, look for a small watch repair shop in your area, I'm sure they can do something.

Sounds like it is just worn out.
Sometimes you can replace the generic clock works in these type of clocks. Go online and do a search for battery powered clock works, and see if you can match yours. They are removed quite easily after popping off the clock hands, and removing a nut under the hands that holds the clock works in the chicken.
Here's a link to a site that sells the clock movements... http://www.clockworks.com/

You will need to do a mechanical adjustment to the hand.
Loosen the hand nut and adjust the hand the tighten.

Hope this tip helps to solve your problems

R/
David

We had the same problem with our wall clock, but it was due to corrosion from a dead battery. The battery acid leaked inside and disrupted the connection between the metal contacting the batteries and the circuit (the one with the copper coil). We took everything out cleaned the contact points with acetone (nail polish remover). After that we had to bend the contact heads up just a little bit so they would contact the circuit again (I guess we bent them down a little when we were cleaning it). It worked just fine after that. I know it sounds intimidating to take apart a clock and put it back together but you're going to throw it out anyway. Just give it a try. It was kinda fun. Think of it as a puzzle. If you can't fix it, I imagine you can get a new motor at any hobby store or Michaels.

If you are sure the hands are not touching as they pass, perhaps the minute hand and hour hand are binding together at the hub. Try this: Gently pull on the minute hand by gripping its hub with the nails of your finger and thumb. It should slide forward a little (or come off). Also the same for the hour hand, to ensure it is not binding on the face of the dial.
I don't know the particular clock, but if it has a SECONDS hand, this is often the one that needs to be freed.
If all the hands are free, all should be good. If it has a seconds hand and the clock stops when this hand is going "uphill", try a fresh battery. If this doesn't fix it, remove the seconds hand and use the clock without it. Or you could try to counterbalance the hand by adding a little weight to the opposite side... this could work, but as it increases the mass of the hand also, it still might be a problem.
Another way might be to shorten the seconds hand..!