PS Magazine - TB 43-PS-555
PS, The Preventative Maintenance Monthly
ISSUE 555
FEBRUARY 1999
Air filter clean?
Shut OFF air outlet valve
Turn pump switch ON
Flowmeter
ometimes normal purging just isn’t enough.
Sand or engine exhaust can contaminate the
M8A1 chemical alarm’s detector cell so badly
that the M43A1 detector can’t be reset. But
there’s hope, thanks to industrial strength purg-
ing. Here’s how to do it:
1.
Open the case. Flip the pump switch to ON
(switch points in) and close the case.
M8A1 Chemical Alarm . . .
8.
Repeat this procedure if it doesn’t
go to green. Still NO GO? The alarm
needs to go to support. They can use
the gas particulate filter in the M140
test set to purge the alarm.
Keep your finger on the valve until
the needle goes toward green, but no
more than 30 seconds at a time. Push
the battery test and reset button (BTRB)
to reset the detector. Keep doing this
until the alarm stops.
6.
Open the case and flip the pump
switch to OFF.
7.
Close the case, turn on the detector,
press the BTRB, and let your M43A1
run until the needle goes to green.
4.
Turn on the M43A1 and turn down
the horn’s volume.
3.
Install the flowmeter. If you’re operat-
ing indoors, also install the outlet filter.
2.
Check air filter. Change it if it’s dirty.
Let run until needle goes to green
5.
Run the M43A1 for a few minutes.
If the needle does not go toward the
green area of the detector meter, put
on your gloves and shut off the air
outlet valve with your finger.
sand
and
exhaust
almost
did you in.
yes!
but
industrial
strength purging
has me
strong
and
ready
to go
!
PS 555
43
FEB 99
PS 555
42
FEB 99
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