Bissell HS-20 instruction manual

WARNING

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If hazardous gas, vapors, chemicals, or combustible mixtures are pumped, sufficient quantities may exist during operation. This pump may contain decomposed and/or overheated pump oils or poisonous and/or corrosive process materials which are highly toxic and also can be an asphyxiant. Proper operation will not always ensure that all haz- ardous materials have been removed.

WARNING

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Hot oils can cause serious burns. Wear protective gloves and long sleeved, loose fitting, heat resistant garments when draining pump oil.

WARNING

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When lifting some Varian diffusion pumps, use power-assisted equipment and trained moving/installation personnel to avoid dropping, slipping, and/or overturning the pump and severely injuring personnel. Check weight of equipment before lifting and do not stand under equipment being moved.

CAUTION

Acetone, alcohol, and other solvents degrade O-ring materials reducing their ability to hold a vacuum. Do not use acetone or other solvents on O-rings. If necessary to clean O-rings, wipe with lint-free, clean cloth, wash in detergent and water, or use a small amount of pump oil.

NOTE

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Always dispose of used or dirty oil properly and in compliance with all local, state, and federal environmental laws and regulations.