Kohler 10CC / 10CCOZ-Mobile — Separate Excitation
Testing & diagnosis · Generator (rotor/stator)
For the Kohler 10CC / 10CCOZ-Mobile, from the Kohler service manual.
Applies to: Kubota V1305BG-2 engine
Before you start
- Hazardous voltage. Perform electrical service only as prescribed in equipment manual.
Procedure
- Disconnect plug P5 of wiring harness from P1 on voltage regulator; also disconnect plug P7.
- Connect an ammeter and a 12-volt automotive battery to the positive and negative brush leads; include a 10-amp. fuse.
- Note and record the ammeter reading.
- Start engine and check that ammeter reading remains stable.
- Check for AC output across stator leads and compare to Specifications--Generator.
- If rotor and stator test good, the voltage regulator is probably defective.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Approximate ammeter reading = battery voltage divided by specified rotor resistance
- Example: 12 Volts / 4.7 Ohms = 2.6 Amps. (Rotor Current)
Full service-parts list: Kubota V1305BG-2 engine →
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.