[. . . ] TJERNLUND PRODUCTS, INC. 1601 Ninth Street · White Bear Lake, MN 55110-6794 PHONE (800) 255-4208 · (651) 426-2993 · FAX (651) 426-9547 Visit our web site · www. tjernlund. com SS2 REPLACEMENT IMPELLER INSTRUCTIONS READ INSTRUCTIONS CAREFULLY PRIOR TO INSTALLATION Disconnect power supply before servicing SS2 to prevent electrical shock and equipment damage. [. . . ] Loosen set screw with 1/8" allen wrench and remove impeller from motor shaft. Wheels "fused" to shaft may require penetrating oil and/or a wheel puller to facilitate removal, (See Diagram C). Shaft of motor should protrude through wheel hub approximately 1/8". Verify that wheel does not rub on inlet assembly or venter housing before establishing power. [. . . ] Run SS2 & equipment through a couple of heating cycles to verify proper operation. [. . . ]