Finish Thompson LS-Jr - Manual (Page 3)

Vacuum relief valve
Allows adjustment to the vacuum, if necessary. Adjustment is
rarely necessary and factory settings will usually be
satisfactory. To adjust, loosen nuts to decrease vacuum, tighten
nuts to increase vacuum. During adjustment. vacuum pressure
is indicated on the vacuum gauge
.
2. Install a STILGASKET for each batch processed, following
procedures in the LS-Jr. Installation and Operating
Instructions. If an optional STILBAG is used, carefully
insert bag, making sure no air pockets are present. Positon
the retainer ring prior to filling.
3. Pump or pour 3 to 4 gallons (11-19 liters) of contaminated
solvent from a grounded container into the reclaimer unit's
boiling vessel. Stampings on the inside wall of the boiling
chamber indicate fill lines. Some solvents may expand and
"foam over" during the distillation process. Experience
will dictate largest batch size to be processed.
4. Carefully position the reclaimer unit lid, lifting approxi-
mately 30° to avoid touching the STILGASKET. When in
position, lower the lid slowly, matching flange to flange.
Secure the spring release latch.
5. Insert the vacuum distillate hose (Item 25) into the quick
disconnect coupling (Item 8) on the reclaimer unit lid.
6. Remove the access lid (Item 18) on the vacuum unit and fill
tank with 3 gallons (11 liters) of clean solvent. Clean
solvent should be the same as solvent to be reclaimed.
Replace access lid on the vacuum unit tank.
7. Place a five-gallon pail on the floor beneath the vacuum
unit distillate discharge hose. Ground receiving vessel with
static ground clamp.
8. Turn on condenser water. (Operation experience will
determine proper adjustment of cooling water flow rate.
Generally it can be reduced until distillate temperature
increases.)
9. Push distillation unit (Item 1) start/stop button. Red light
turns on.
10. Turn on vacuum unit motor (Item 20). After approximately
11/2 hours, solvent should be flowing through the
discharge hose into the receiving pail. When distillate flow
stops, the material has been reclaimed.
11. Push distillation unit start/stop button. Red light turns off.
12. Remove vacuum-connection discharge hose from the
quick-disconnect coupling. Vacuum pressure should return
to 0 on vacuum gauge. (Note: Failure to disconnect
vacuum-connection hose will result in reclaimed solvent
being drawn into the distillation unit.)
13. Turn off vacuum motor.
14. After approximately half an hour, turn off cooling water.
15. Allow unit to cool overnight. Unsecure lid and slowly lift
30° vertically to break seal. Swing lid to back of unit.
16. Remove residue using STILSCRAPER or similar plastic
utensil. (If optional STILBAG is used, remove retainer
ring and take out residue-filled STILBAG.)
Solvent pump
Pressurizes recycled solvent from the reservoir tank to provide
a primary (motive) fluid to the JetVac pump.
JetVac pump
Creates a vacuum in the distillation unit by combining a high-
velocity primary jet stream of solvent with a secondary stream
of leak-air and condensate from the distillation unit. The JetVac
pump also elevates solvent vapors to near-atmospheric con-
ditions and assists in the condensing process.
Check valve
Used for short intervals, the check valve prevents reclaimed
solvent from re-entering the reclaimer unit.
Y-strainer
Prevents plugging of the vacuum unit should a carry-over occur
by trapping large particles. After every 40-60 hours of opera-
tion, clean the screen within the V-strainer by removing and
rinsing
.
Cooling coils
Water circulation within the cooling coils cools solvent and
removes heat from compression, condensation and fluid
friction.
Flame-check
Prevents possible back-flash of flame into the reservoir tank.
INSTRUMENTATION AND MAINTENANCE
Solvent reservoir tank
Contains clean solvent, cooling coils, a solvent pump and a
JetVac pump. An overflow pipe carries reclaimed distillate to a
receiving pail. Each component in the reservoir tank is used for
either creating the required vacuum or condensing reclaimed
solvent.
After every 40-60 hours of operation, clean the inside of the
reservoir tank. Drain solvent from the tank and clean the tank
by wiping with a clean, dry cloth. Refill the reservoir tank with
3 gallons (11 liters) clean solvent.
c.