2009 by ELTRA GmbH Germany – July 2009 – Service Manual Thermostep
Page 57
g.)
The thermocouple connects to the socket mounted at the rear inside the lid. Disconnect
the two wires from the socket (green is +ve) and pull the wire through the rubber
grommet in the lid (see Fig.3.28).
h.)
Disconnect the purge tubes from the quick connect elbows where the enter the furnace,
taking care not to apply force to the ceramic tube. The ceramic cement holding these
tubes into the furnace is easily cracked.
i.)
On the LHS inside the lid the three plastic purge gas tubes are connected to a quick fit
tee connector. Take a note of the number on each tube (29, 30 & 31) and how the
tubes are threaded and connected to the tee connector. Disconnect from the tee
connector and pull the tubes clear from the lid.
j.)
Remove the 4 x 13mm bolts from each corner of the top lid frame and carefully lift up
from the front, slide forward and pivot backward to access the upper furnace. Hold
the lid up in this position supported at the rear until the furnace wires are disconnected
and clear of the lid.
Fig. 3.16.3: TS – Removing bolts attaching the cover frame
Fig. 3.16.4: TS - Lid lifted out of frame supported at the rear
