Graco Ultra 1000, Инструкция и перечень запасных частей

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Bridge Test
WARNING
To reduce the risk of a serious injury, follow the
Pressure Relief Procedure on page 4 whenever
you are instructed to relieve the pressure.
Remove the bridge from the pressure control. Perform
this test to determine if the bridge is functional. See
the Bridge Replacement on page 27. Use a continuity
tester, such as multi-meter, set on the X1 ohms scale.
Perform all the tests in the chart. If the bridge fails
even one test, it must be replaced.
Fig. 10 shows the position of the wires on the bridge.
Using the chart at the right, connect the meter wires as
indicated by the black dots for each test, and then
check the continuity.
AC1
AC2 G2
G1 –
+
Fig. 10
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. There
should be 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 meter wire. There
should be NO continuity one way and YES continuity
the other way.
NO TEST 1
NO TEST 2
NO TEST 3
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
BRIDGE WIRES
G2 G1 – + AC1 AC2
OR
OR
TEST 5
TEST
6
TEST 4
TEST 7
TEST 8
CONTINUITY