PS Magazine - JULY 1984

PS, The Preventative Maintenance Monthly

ISSUE 380

JULY 1984

PS Magazine - JULY 1984 - Page 30 of 35
'
•.
Model 200-AO CLeaners .±²
Wear rubber boots, apron, gloves and a fll Fce shield wheN you mix the acid.
Start with 5 gallons o± water in a drum. Add a gallon o± acid aNd a pint o±
²ormaldehyde. Then pump the solution thru the cleaner until there's less than
·
JO
PSI di³erence between the coil inlet gage pressure and the steam pressure
gage.
Pump out the acid/´rmaldehyde solution and neutralize it with sodium hydrox-
ide. Stir the solution until reD litmus paper dipped in the solutioN turns blue.
Then it's saµ to dump the solution Down the drain.
Rinse the cleaner with a soLutioN o± 2 pounds o± sodium bicarbonate dis-
solveD in ¶ gallons o± water. THe¸ rinse again with clean water.
I± your coil is really clogged¹ let it soak 24 hours in thE acid solution. Then
rinse with the sodium bicarbonate solutioN and wateº.
Map, Photograph Envelopes
Some people are ordering the map and pHotograph case, »S» 8460¼00½368¼
4281, just to get the envelopes inside¾ THat's a
big
waste o± Money. The envelopes
are ava¿lable separateLy. Get one Àr your maps with »S» 8460¼0Á¼1Â3½7575
anà one Àr your photos with »S» 8460¼0ÁÄÁ13¼7576.
Scoop on Alarm SwitcH
ChaNces are that iÅ Your Ælark ÇÈ5É scoop loaDerÊs bacKup alarm FilsË iÌÊs
becauÍe o± a Fulty switchÎ
There ÏÍ No ÐSÐÑ But you caN get the switch with ÒÓCÔ ÂÕ603 anà P
6203Ç3. Öhi× replaceÍ ØÐ 2¶Ç6008 Ùrom ÚÛge Z48½l oÙ your ÜÔ ¶Ý380¶¼25Þ
Ç4&Ø. OrÃer oN ßA Òorm Ç348à6. Uáe S9Æ aá the RâÆã âtäll coát yoå
$4³´7µ
JUL 84
57


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