10.23
ELECTRICAL
10
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
CHARGING SYSTEM
Current Draw - Key Off
Connect an ammeter in se ries with the negative battery
cable. Check for current draw with the key off. If the draw
is excess ive, loads should b e disconn ected fr om the
system one b y on e un til the d raw is eliminated. Ch eck
component wir ing as well as th e comp onent fo r p artial
shorts to ground to eliminate the draw.
Charging System “Break Even” Test
The “break even” point of the charging system is the point
at which the alternator overcomes all system loads (lights,
etc.) and be gins to cha rge the batter y. De pending on
battery condition and system load, the break even point
may vary slightly. Th e batter y shou ld be fully ch arged
before performing this test.
1. Using an inductive amperage metering device, (set to
DC amp
s) connect to the negative battery cable.
2. With engine off, k ey switch
and lights in the on
position, the am meter sh ould re ad ne gative a mps
(battery discharge).
3. Shift transmission into park and start the engine. With
the
engine running at idle, observe meter readings.
4. Increase engine RPM while observing ammeter and
ta
chometer. Note the RPM at which the battery starts
to charge (ammeter indication is positive).
5. With lights and other electrical loads off, the “b reak
e
ven” point should occur at approximately 1500 RPM
or lower.
6. With the eng ine run ning, tu rn th e ligh ts on and
d
epress the brake pedal to keep brake lights on.
7. Repeat te st, ob serving a mmeter and tachometer.
With li
ghts on, charging should occur at or below 2000
RPM.
Do not connect or disconnect the battery cable
or ammeter with the engine running. Damage will
occur to electrical components.
Current Draw - Key Off:
Maximum of .01 DCA (10 mA)
Current Draw Inspection
Key Off
Do not allow the battery cables to become
disconnected with the engine running. Follow the
steps below as outlined to reduce the chance of
damage to electrical components.
Never start the engine with an ammeter
connected in series. Damage to the meter or
meter fuse will result.
Do not run test for extended period of time.
Do not run test with high amperage accessories.
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