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exmark lazer z
- Thread starter mbd
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Export threadCharging circuits failures can be frustrating. However, theyæ±*e fairly straightforward to troubleshoot with some assistance. Below is a guide to diagnosing charge circuit failures:
1) Identify if the issue is machine related or engine related
a. With the engine off, turn the key to the run position
b. Verify that battery voltage is present at the output of the regulator/rectifier
i. Typically the only colored wire at the regulator/rectifier
c. If battery voltage is present, proceed to step two. If not, verify that battery voltage is present from the key switch and through the charge fuse.
i. *Next Lazer, Vantage, and TTS/TTX EFI equipped machine do not route charge current through the key switch but still will have battery voltage at the regulator/rectifier with the key in the run position. Also, these engines have a charge fuse located on the engine.
2) Verify stator output
a. With the engine running at full throttle, verify that the stator is creating a minimum of 28VAC (volts AC)
i. The stator connects to the regulator/rectifier with two wires (typically, white wires).
b. If the stator is working correctly, proceed to step three. If not, replace the stator and regulator/rectifier
3) Verify regulator/rectifier output
a. With the engine running at full throttle, verify that the regulator/rectifier is generating between 13.7 and 14.7 VDC (volts DC).
b. If the regulator/rectifier is not generating a voltage in the range, verify the ground connection and retest. If the regulator/rectifier fails the retest, replace the regulator/rectifier.
Please contact Exmark Customer Service at 800-667-5296 if you have further questions. Thank you!
1) Identify if the issue is machine related or engine related
a. With the engine off, turn the key to the run position
b. Verify that battery voltage is present at the output of the regulator/rectifier
i. Typically the only colored wire at the regulator/rectifier
c. If battery voltage is present, proceed to step two. If not, verify that battery voltage is present from the key switch and through the charge fuse.
i. *Next Lazer, Vantage, and TTS/TTX EFI equipped machine do not route charge current through the key switch but still will have battery voltage at the regulator/rectifier with the key in the run position. Also, these engines have a charge fuse located on the engine.
2) Verify stator output
a. With the engine running at full throttle, verify that the stator is creating a minimum of 28VAC (volts AC)
i. The stator connects to the regulator/rectifier with two wires (typically, white wires).
b. If the stator is working correctly, proceed to step three. If not, replace the stator and regulator/rectifier
3) Verify regulator/rectifier output
a. With the engine running at full throttle, verify that the regulator/rectifier is generating between 13.7 and 14.7 VDC (volts DC).
b. If the regulator/rectifier is not generating a voltage in the range, verify the ground connection and retest. If the regulator/rectifier fails the retest, replace the regulator/rectifier.
Please contact Exmark Customer Service at 800-667-5296 if you have further questions. Thank you!
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