Instructions for Replacing Micro Switch
Before doing anything, remove the hammer and unplug the machine. To
replace switch proceed as follows: Remove defective switch from bracket, install
new switch and switch cover on bracket. Check the new switch by pressing the
lever down by hand to where you hear or feel a click, (see Fig. I). Release the
lever slowly, you should hear or feel another click. At this point the lever should
be about 1/16" away from the stop pin. The lever may need to be re-bend a
little to get close to 1/16" (see Fig.2).
Proper Adjustment of Switch Bracket
Loosen screws "A and B" slightly, move switch bracket all the way to right. By
means of Jog-Button, manipulate the carrier pin to the highest point of the
switch lever, as shown in "Fig.3".
Now move the switch bracket to the left, until you hear a click in the switch.
Move it about 1/16" to 3/32". Beyond this point, further to the left, (see Fig.4).
Then tighten screws "A and B". After this is done the machine is ready to run.
NOTE:
There must be a nylon bushing (part #207) on the carrier pin. Also the
chain should not be too loose and flapping.