7-5
Copyright 2017 Cummins Inc.
RUPTURE BASIN LEAK DETECT SWITCH
TEST
The rupture basin leak detect switch (Figure 7-4) is
provided with sub-base fuel tanks used with the op-
tional enclosure. This switch should be checked
once a year to make sure switch is properly operat-
ing. In some areas, weekly inspections may be re-
quired by safety code regulations.
To test the leak detect switch:
1. Remove the pipe fitting/switch assembly from
the rupture basin tank.
2. Move the O/Manual/Auto switch to the MANU-
AL position.
3. Activate leak detect switch (move float up-
ward).
4. Check control display for Rupture Basin fault
message. If no indication of fault, repair defec-
tive circuit. Refer to Enclosure/Options Wiring
Diagram in Section 8.
5. Apply thread sealant to pipe fitting and install
switch assembly.
LEAK DETECT
SWITCH ASSEMBLY
ENCLOSURE
SUB-BASE
FUEL TANK
FIGURE 7-4. RUPTURE BASIN LEAK DETECT SWITCH
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