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ELECTRICAL SYSTEM
3.
Attach a digital amp clamp to either one of the
motor leads (the current will be positive or nega-
tive depending on which LED is used).
Figure 2.34
4.
Start the mower and run it for 10 seconds then
read both meters. See Figure 2.35.
NOTE: Do not operate the mower in grass when
testing the battery pack. The measurements are
meant to be take with the blade as the only load
on the motor.
Figure 2.35
Interpreting the results
Voltage
>47.0
< 9.5
>47.0
>9.5
44.0-47.0
< 9.5
< 44.0
< 9.5
< 44.0
< 44.0
16
Table 1:
Current
Possible reasons
Normal readings
High load on
motor, a short in
the harness or
motor worn out.
Check for grass
build up under-
neath the deck.
Battery pack low
or one battery
going bad, charge
the battery pack
and retest.
Battery pack is
bad.
short in system
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