Very interesting and informative, Niksch, thank you. Were there many variants of this model of the late 40's with the same clip and barrel ? One sent me pictures of a 134 from the MB book very similar but with the cap band engraved. These caps were not engraved along the side like many other models ?
131-420 FRONT 131-420 REAR AND SIDE PROFILE. SEA-FIRE FIRE SUPPRESSION SYSTEM MONITOR WITH ENGINE SHUTDOWN CONTROL AND HIGH TEMPERATURE ALARM. Part No. 131-420. ELECTRICAL CONNECTIONS. Connect the plug on the back of the panel to the. corresponding plug on the Sea-Fire ESRS shutdown unit. Connect the blue wire to one of the temperature sensor. wires.
To determine the fire point, continue heating so that the sample temperature increases at a rate of 5 to 6 Â°C. Continue the application of the test flame at 2Â°C intervals until the oil ignites and continues to burn for at least 5 second. Record the temperature at the point as the fire point of the oil.