Structural/Accessory Maintenance
157
Element Replacement
The thermal element is field replaceable. To
replace the element:
1. Remove element flange screws (D) and
withdraw the thermal element from the
recorder case. Care must be taken not to bend
the hex shaft which extends from the recorder
case.
2. Remove the old sensing bulb and capillary
from the unit.
3. Install the new sensing bulb and capillary in
the unit. The capillary of the new thermal
element may be bent, but do not bend the
bulb.
4. Install a new thermal element in the recorder
case.
5. Replace the element flange screws (D) and
tighten securely.
6. Check the calibration of the recorder.
Recalibrate the recorder if necessary.
Saginomiya (Model SKM)
Recording Thermometer
(Option)
The 31-day Saginomiya Recorder is electric
motor driven by a dry cell type battery with a 1
year life expectancy. The sensor bulb is mounted
in the evaporator to record the return air
temperature.
The recording thermometer should be inspected
and cleaned to ensure that the stylus produces
smooth clean lines and records accurate
temperature readings.
1. Recording Chart
2. Chart Nut
3. Battery
4. Test Button
5. Battery Voltage Indicator
6. Power Element Assembly
7. Setting Screw (Calibration)
8. Lock Screw (Calibration)
9. Recording Pen
10. Lifting Arm
11. Time Scale Plate
12. Terminal Board
13. Quartz Motor and Reducing Gear Assembly
14. Recording Platen
Figure 61: Saginomiya (SKM) Recording
Thermometer
AXA0202
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