Buying a used Dryer. GE (FriGEaire) or Admiral (Whirlpool)

[whirlcool]

Take the covers off and you'll see a lot of lint in the bottom of the dryer and in the "shaft" where the lint filter goes. Use a duster to clean that out.
Also take the protective cover off the heating element and carefully vacuum or blow the lint out of there. This would also be a good time to inspect the belt for cracks, etc.
Belts for these units are pretty cheap and they last a long, long time.

 

[alr2903]

Yes,  a hamper door dryer from the Whirlpool family, top lint filter  on the right back of the top.  I have one from CL in gas, my mother had an avocado green Kenmore that she used for 25 years, it was still working when it was traded for a matching set early in the 2000's.  IIRC her machine had the belt replaced one time.   alr2903

 

[runematic]

You definitely want to remove the lint filter tube and clean it out.  Take out the 2 phillips screws on the top where the lint filter goes in.  Next remove all the screws that hold on the major back panel of the dryer (something like 9 screws that you'll need a 1/4" nutdriver for).  Next find the 4 screws that hold on the lint filter tube.  They're at the bottom of it, 2 on each side.  Now remove the tube and clean away.  You never know what you'll find.  While you're at it, I'd remove the front panel of the dryer and vac out the motor & put some turbine-type oil into the idler pulley & the shafts of the tub wheels.

 

[kenmorebd]

I have a larger whirlpool dryer just like the seconde one posted. A good dryer but the one in pic looks abused.

-andrew