TE Connectivity RBK-X1 CE, Customer'S Manual

Page: 46 / 55

RBK-X1 CE
PN 2234800-2 /-4 /-6
Page 45 Rev B Apr 2020
4.5.3
Heater Element Replacement.
ENSURE THAT MAINS SUPPLY IS DISCONNECTED.
The two heater elements are mounted within a protective cage. Each are removed
separately, but must be replaced as a set. REMOVE TOP GUARD FIRST.
Replacement procedure
1. Remove top cover /top guard/front guard/both side guard.
2. Disconnect the upper and lower heater electrical connections, unplug the thermocouple plug.
Electrical Connections for Heating elements
1 = Bottom Heater 3 = Top Heater 5 = Thermocouple
‘K’
Type Socket
2 = Bottom Heater 4 = Top Heater 6 = Thermocouple
‘K’
Type Plug
3. Remove the 2X upper bearing screws from left and right side. Allow the heating element can be easily removed
from cover. (See picture above in yellow circle.)
4. Remove the 2X upper heater mounting screws on top of red heating element cover, with one hand to
hold the heating element avoid falling. (See picture above in blue circle.) Upper heating element can be
removed.
5. Remove the grommets from base plate (See below picture), to gain access to the two lower heater
element mounting screws.
6. Rotate Disc clockwise to push heater chamber forward to the Load position.
7. Remove the 2X lower heater mounting screws using allen key access through the holes which was found in
step 5. Now Lower heating element can be removed.
8. Replacement is the reverse of the removal procedure.
Note: Ensure wires to thermocouple connector plug are reconnected with the correct polarity. On
replacement ensure that the earth lead is connected and cable ties are fitted. Calibration
must then be carried out.