Maintenance; Door Gasket Repair - Thermo Scientific 3490M Manual

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Maintenance

Section 7
The Ultra-Clean Class 100 Oven should be cleaned with lint-free wipes
and thoroughly vacuumed.
Caution Disconnect plug from electrical outlet before attempting any
maintenance or repair of this unit.
Note Make no attempt to service or repair a Thermo Scientific product
under warranty before consulting your Thermo Scientific dealer. After the
warranty period, such consultation is still advised, especially when the
repair may be technically sophisticated or difficult.
If assistance is needed beyond what the distributor can provide, call the
Technical Services Department. No merchandise, however, should be
returned directly to the manufacturer without prior approval.

Door Gasket Repair

Remove oven from clean-room area.
If the door gasket is nicked or has a small tear, the gasket may be repaired
with RTV Sealant 3145 (part #120-053-00). Form the sealant to the
proper shape in the case of a nick. Use the sealant to reattach a small torn
piece to the rest of the gasket. Allow 12 hours for the sealant to dry fully.
Bake the gasket for several hours until the RTV has hardened completely.
Then return oven to the clean-room area.
Thermo Scientific
Clean Room Oven
7-1

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