SP-2Z-12F Nason low oil pressure switch, commonly used on the DMT generators Rear cylinder This will be item #19

This will be item #19 in the Lister Petter drawing

1) 601-38360

AC1 and AD1 engines

751-12692 spacer used with the rocker/head bolts

SP-2Z-12F Nason low oil pressure switch, commonly used on the DMT generators Rear cylinder This will be item #19SP 2Z 12F Nason low oil pressure switch, this is a NO, NC switch. This switch is a "falling type switch" that is triggered at 12 psi This switch has been updated to part number MM 2C 12F AT and is physically different, the main difference is that the new switch gives you a choice between normally open and normally closed contacts. On the DMT application you will use normally closed contact (NC) and the common (C) terminals. The 3rd picture will be