Chapter 8
Troubleshooting
Page 136 DM55 DynaDrum PP V6, Manual No.21-18, Rev.2.19
8.5 Heaters in Piston Pump
Two 585 Watt, replaceable, 240VAC cartridge heaters are installed in the piston pump
body. An ohmmeter may be used to verify if they are operable. A reading of 98.5 ohms
indicates a heater is good. The total for these two heaters (1170 Watts) is 197 ohms in
series.
8.6 RTD Sensors in Platen Core & Piston Pump
There is a PT100 RTD sensor in both the platen core and in the body of the piston pump.
Resistance of these sensors may be measured with an ohmmeter and should be 110
ohms at 25°C (a tolerance of ± 5% is allowed at ambient temperature).
An ohm reading for the sensor in the platen core can be made by removing the (round)
Sensor Inspection Cover on the platen cover. See drawings for location of the pump
sensor.
To Next Page
Loading...