Finish Thompson LS-55IIE - Manual (Page 19)

18
~ Maintenance Schedule ~
CAUTION:
Always wear eye protection, protective clothing, gloves and an approved respirator when working on or with this
unit. Never work on or with this equipment while it is hot. Never open a hot Still. Allow a minimum of two
hours or more cool-down time.
EACH USE:
CLEAN THE BOILING CHAMBER - Remove any waste residues from the boiling chamber and Stilbag
venting system. If necessary, gently scrape the sides with an approved scraper (see Common Spare Parts). Also
keep the underside of the lid’s lip clean for proper sealing, as well as clearing the opening to the pressure relief
valve.
CAUTION:
When cleaning, use only plastic or other non-metallic utensils to avoid scratching the boiling chamber
when scraping out residues. Scratching the non-stick coating results in permanent damage and voids the
warranty.
WEEKLY:
 VERIFY FLOW SWITCH - Test the operation of the cooling water flow switch. Start the system, and reduce
the water flow to the condenser to verify that the indicator light goes out (the JetVac will also shut off, if used). If
the flowswitch operates incorrectly, verify proper condenser water flow, and clean the flowswitch according to
Maintenance: Semi-annually. If this does not solve the problem, replace the flow switch.
WARNING:
Do not attempt to operate the Still when the cooling water flow switch is not operating correctly. Doing
so can result in the accumulation of hazardous vapors.
 CHECK GROUNDING CABLES - Inspect all grounding cables and clamps for deterioration or damage.
Replace any suspect parts.
 INSPECT GASKETS - Check the lid gasket on the boiling chamber and the JetVac reservoir for debris, cracks,
voids, etc. Replace any damaged gaskets.
IMPORTANT - Do not attempt to remove the Still gasket for inspection. A used gasket is compressed and will
not easily re-install onto the boiling chamber.