Thermo Scientific 3051 Series, Operating Manual And Parts List

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Note
Study the method of door gasket attachment before starting
disassembly. Understanding will avoid confusion later in this process.
s
Precision 3051 Series ovens incorporate a durable, silicone door gasket to
minimize heat loss. Should the gasket become defective or be damaged, it
may be replaced by following the procedure below.
1. Set the power switch to off position and open chamber door.
2. Open door fully. Carefully remove and retain hardware from door
hinges (case side). Lay door on a flat surface with the handle over the
edge.
3. Note the joint position of the old gasket. This is where the new gasket
installation will start.
4. Bend back the old door gasket and remove the Phillips head screws
attaching the gasket.
5. Remove the old door gasket.
6. Loosely install two screws through the stainless steel liner and into the
door wrap to align these pieces.
7. Begin installing the replacement gasket at the joint position of the old
gasket. Stretch the replacement gasket around the corners of the liner
to avoid bunching up of the gasket material.
8. Install a Phillips head screw as the gasket rounds each corner to keep
the gasket properly stretched. (The screw goes through the liner, pierces
the gasket and threads into the door wrap.)
9. After all four corners are secured, install the remainder of the Phillips
head screws. Make sure there is no gap at the gasket joint; stretch the
gasket slightly if necessary.
10. Reinstall the door onto the case with hinges.
6-2 Precision Standard Oven Thermo Scientific
Section 6
Service
Replacing the Door
Gasket