Dow FROTH-PAK Refill Systems - Manual (Page 26)

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11 . Reconnect the “a” on-off valve to the filter of the new
“a” tank . Tighten with an adjustable wrench .
12 . Remove the filter from the empty “a” tank and
dispose accordingly .
13 . Reconnect the plug on the empty “a” tank to the
chemical valve . Tighten with an adjustable wrench .
14 . Depressurize the empty “a” tank by slowly opening
the nitrogen intake valve .
15 . When the tank has been depressurized, close the nitrogen
intake valve of the empty “a” tank and reconnect
the yellow-coded cap . Tighten with an adjustable wrench .
16 . Remove the empty “a” tank and position the new “a”
tank in its place .
17 . Write “EMPTY” on the empty “a” tank
9 .2 “B” Tank Change-over
1 . Position the new “B” tank next to the empty “B” tank .
2 . Verify that the nitrogen intake and chemical valves of
the new “B” tank are closed . The handles should be
perpendicular to the valves .
3 . Remove the yellow-coded cap on the nitrogen intake
valve of the new “B” tank .
4 . Relieve the nitrogen pressure by loosening and removing
the yellow/blue coded nitrogen regulator line from the
nitrogen intake valve of the empty “B” tank using an
adjustable wrench .
5 . Reconnect the “B” yellow/blue coded nitrogen line to the
nitrogen intake valve of the new “B” tank . Tighten the
connection with an adjustable wrench .
6 . Remove the chemical valve plug of the new “B” tank and
place the plug on top of the new “B” tank .
7 . Remove the fluid filter from the canvas bag on top of the
new “B” tank . Verify that the filter and the cartridge are
free by shaking the filter until you hear a “clicking sound .”
nOTE: air blown into this end will pass freely through the filter .
8 . Connect the filter to the new “B” tank chemical valve
with the filter arrow pointing away from the tank . The
arrow represents the chemical flow . Tighten the filter
with an adjustable wrench . The filter prevents
chemical from flowing back into the tank .
CAuTiOn: When disconnecting chemical lines, always cover the
connections with a rag to minimize chemical spray or spillage .
9 . Disconnect the “B” on-off valve from the filter of the
empty “B” tank, covering the connection with a rag .
10 . Reconnect the “B” on-off valve to the filter of the new
“B” tank . Tighten with an adjustable wrench .
11 . Remove the filter from the empty “B” tank and
dispose appropriately .
12 . Reconnect the plug on the empty “B” tank to the
chemical valve . Tighten with an adjustable wrench .
13 . Depressurize the empty “B” tank by slowly opening
the nitrogen intake valve .
14 . When the tank has been depressurized, close the
nitrogen intake valve of the empty “B” tank and
reconnect the yellow-coded cap . Tighten with an
adjustable wrench .
15 . Remove the empty “B” tank and position the new “B”
tank in its place .
16 . Write “EMPTY” on the empty “B” tank .
9 .3 Tank Return
1 . Complete the bill of lading on the empty tanks as
described on page 5 of this manual .
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