Safety switch check, 1 to test – Castle TSM-20 Operator Manual Addendum User Manual
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CAUTION: ALWAYS DISCONNECT POWER AND AIR BEFORE ATTEMPTING ANY
MAINTENANCE OR TESTING ON YOUR CASTLE MACHINE!
1.0 SAFETY SWITCH CHECK
The safety switch on the TSM-20 is a micro switch located on the outside of the control box (Fig 1).
When the safety buttons at the rear of the worktop are depressed by the stock, they actuate a blade inside
the machine that presses against the button of the micro switch. Combined with the micro switch in the
foot pedal these two micro switches are responsible for initiating the cycle on the TSM-20. If the switch
has failed then the machine will not begin the cycle, essentially your clamp will not go down and the
routers will not move, though they will turn on.
FIG 1
1.1 To
Test:
1.
Disconnect air and power.
2.
Test for continuity at the switch by connecting the ohmmeter leads to wired side of the micro
switch. You will need to remove the orange cover plate to do this.
3.
Press in the button on the micro switch. If the switch is working you should register continuity
after you press in the button.
4.
If no continuity is registered then the switch needs to be replaced.
TSM-20 Operator’s Manual - Addendum
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