Sherwin-Williams ULTIMATE NOVA 1000 Service Manual download pdf (Page 20)

Remove the bridge from the pressure control box and

perform this test to determine if the bridge is functional.

Use a continuity tester, such as multi-meter set on the

Xl ohms scale ( Q 1.

Eight individual checks, or tests, must be performed. If

the bridge fails even one test, it must be replaced.

Fig 9 shows the position of the wires on the bridge. Us-

ing the chart at the right, connect the meter wires as in-

dicated by the black dots for each test, then check the

continuity.

In Tests 1, 2 and 3, there should be NO continuity.

In Tests 4.5 and 6, connect the + and - meter wires as

indicated, check continuity, then switch the meter wire

connections and check continuity again. You should

get NO continuity one way, and YES continuity the

other way.

In Tests 7 and 8, connect the meter wires as indicated

by the black dots. Touch the indicated “G” wire to one

meter wire, and then to the other. You should get NO

continuity one way, and YES continuity the other way.

BRIDGE WIRES

NO\1 t I/rc.I 1

------

-or

z 3

TEST 1

TEST 2

TEST 3

TEST 4

TEST 5

TEST 6

TEST 7

TEST 8

Fig 9

20 826-647

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 35 36

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Sherwin-Williams ULTIMATE NOVA 1000 Service Manual Page 20