Caterpillar VR6 — Remote Voltage Control
Installation · VR6 voltage regulator
For the Caterpillar VR6, from the Caterpillar service manual.
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Procedure
- Connect a 10 kOhm, 2 Watt potentiometer between terminals 6A and 7 on the voltage regulator.
- Remove the jumper between terminals 4 and 7.
- Remote potentiometer must be 10 kOhm +5% with three turns or more and dielectric strength 1000 VAC minimum.
- Wiring should not have a diameter larger than 18 gauge; use 600 Volt class with 90 C (194.0 F) insulation.
- For distances up to 15.24 m (50 ft), a shielded cable may be necessary to isolate the signal from noise.
Specs & values
- 10 kOhm, 2 Watt potentiometer
- dielectric strength 1000 VAC minimum
- wire 600 Volt class with 90 C insulation
Source: Caterpillar 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.