Nilfisk-Advance 56206980 Service Manual page 9

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BATTERY CHARGER SERVICE MANUAL
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2-TEST FOR PROPER FUNCTIONING OF AUTOMATIC TIMER COMPONENTS
A With both the AC cord and the charging plug disconnected, remove the cover from the charger. Verify
that the charger is wired correctly according to appropriate wiring diagram for the specific part number
charger.
B Remove the retaining screws and slide the
automatic timer kit out the front of the
charger. Disconnect the edge connector
from the automatic timer kit and insert the
test kit (Fig. 2). Connect the DC plug to the
charging receptacle and listen for the relay
to "click" on. If the relay now "clicks" on,
install a new automatic timer kit and re-test.
If the relay does not "click" on, continue with
the next test.
C Measure DC voltage across the pads on the
test kit that the red (Positive) and black
(Negative) wires contact (Fig. 3). The meter
should read the same battery voltage as
recorded in 1-C. If no voltage is measured
or the voltage measured is lower, repair or
replace the control cable assembly and
retest.
D Measure DC voltage across the pads on the
test kit that the black (Negative) and brown
(Positive) wires contact. It should read the
same battery voltage as recorded in 2-C. If
no voltage is measured install a new control
relay and retest.
8 - FORM NO. 56041170 / BATTERY CHARGER SERVICE MANUAL / PARTS LIST
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FIGURE 2. Insert the test kit.
FIGURE 3. Measure battery system voltage
at the test kit pads.