Magnetic Switch And Safety Key - Powermatic PM253BT Operating Instructions And Parts Manual

10-inch cabinet saw
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resulting in loss of power and overheating. Table 3
shows correct size to use depending on cord length
and nameplate ampere rating. If in doubt, use the
next heavier gauge. The smaller the gauge number,
the heavier the cord.
Amp Rating
Volts
Not
240
50
More
More
Than
Than
00
06
18
06
10
18
10
12
16
12
16
14
Table 3: extension cord recommendations

7.3 Magnetic switch and safety key

Refer to Figure 7-2.
Power Indicator Light – The start switch has a
power indicator lamp which is on whenever there
is power connected to the saw, not just when the
saw is running. Do not assume that no light means
there is no power to the machine. If the bulb is bad,
there will no indication. Always check before use.
Do not rely that no light means
no power to the machine. Always check for
power first. Failure to comply may cause serious
injury.
Start – Press green start switch.
When power is connected to the machine, the green
light is always on regardless of whether the saw is
running or not.
Stop – Press red switch to stop.
Reset – If the saw stops without pressing the stop
button, as the result of a tripped fuse or circuit
breaker:
1.
Press red button to reset.
2.
Press green button to restart machine.
7.3.1 Safety Key
The switch is equipped with a magnetic safety key.
When in place on the switch as shown in Figure 7-
2, the safety key trips a relay which will allow the
machine to start and stop when the respective
switches are pressed. Being magnetic, the key can
be removed to make the machine inoperable and
can be hidden for safe storage by attaching it
underneath the rail or another magnetic surface.
When using the saw, place the key on the switch
cover lining up the arrow on the key with the
REMOVE arrow on the cover. Then rotate the key
so the arrow lines up with the LOCK arrow. This
prevents the safety key from vibrating loose when
machine is in use.
Total length of cord (ft.)
100
200
300
AWG
16
16
14
16
14
12
16
14
12
Not
12
Recommended
15
Figure 7-2

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