Hitachi L-8900 Service Manual page 102

3. Heater temperature sensor replacing procedure
3a. Perform 2a - 2c of Oven temperature sensor replacing
procedure.
3b. Pull out Heater temperature sensor, attach a new
Temperature sensor (P/N 852-3518).
3c. Apply enough thermal conductive grease (P/n J379090)
to the circumference, seal the outside with Silicone
compound (P/N 852-3526), then , dry it for 3 - 4 hours.
3d. Assemble in the reverse order of disassembly.
4 - 14
Heater temperature
sensor attaching position