that pulse timer, which is usually mounted on the upper right hand bulkhead is for the Wrinkle Guard.....
an added feature back then....not incorporated into the regular timer yet....
I am going to speculate the 'normal/knit' switch is for temps, high/low...
for service techs, were not required to clean the lint out of a machine, for say, if you called in for a broken belt, or heating issue...
speaking of which, lets take this machine for example....lint light on all the time....were there to fix just that, the light, most likely just clean the lint screen as Mark did, the port that activates the light, and that's it!...
they can mention that the lint needs cleaned out, but most times, if it wasn't requested beforehand, another service call is required....
now if and when you called for service, you requested the machine to be cleaned out of all lint, lubricate the rollers and such, that's a woile other charge....cleaning out the vent line from the dryer to the point it exits the house, some places don't do that, or it will be another extra charge....
same thing applies for a washer...lets say it required a belt or pump replacement....that's all that is to be completed....test to make sure it works, and then move on......cleaning the detergent build up, the ring around the tub/agitator....not part of the service call....
this is the same thing when having a new machine delivered....usually with a gas dryer, the delivery guys wont touch it, you must call a plumber for that...with an electric, only a new plug can be installed by them....its a liability thing...
they may remove the old appliance, and possible broom clean the area.....but no more....and the machine gets hooked back up to the existing vent lint, if clogged, that's the responsibility of the homeowner, not the delivery crew.....
your given 'X' amount of work orders, and a time frame for each one....if you spend too much time at one place, they will call you, as to what is taking so long....
as with any business, time is money......
local guys may have some lead way....theres many reasons why some places will charge 85.00 for a service charge, and others 200.00+ just to show up....