Subaru Robin Power Products 13100T, RGV12100 Brush, A.V.R, Automatic Voltage Regulator, － 30－

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8-7 BRUSH

The brushes must be smooth where they contact the slip rings. If not, polish smooth the brushes with sandpaper. A brush that is not smooth produces arcs between the brush and slip ring leading to possible damage. Usable brush lengths are from 5 mm to 15 mm (0.2 " to 0.6").

A brush shorter than 5 mm must be replaced because decreased contact pressure between the brush and slip ring lowers gen- erator efficiency and output voltage.

BRUSH

HOLDER

15 to 5 mm

(0.6" to 0.2")

BRUSH

8-8 A.V.R

(AUTOMATIC VOLTAGE REGULATOR)

1) Features

This AVR operates to control the field current in order to maintain the output voltage for the AC current, which generated by the magnetic flux by the field coil.

2)A.V.R. trouble may be identified by simply looking at the A.V.R., or by the inter-lead resistance with a tester, or actually mount- ing it in the generator and operating it.

2 4

1 3

Terminal number of the A.V.R.

Yellow

(a)A.V.R. TROUBLE IDENTIFICATION by APPEARANCE

If an A.V.R. electronic part is burnt dark, or the surface epoxy resin melted, it often indi- cates A.V.R. trouble.

(b)IDENTIFYING A.V.R. TROUBLE by CHECKING INTER-LEAD RESISTANCE

Check the inter-lead resistance of the A.V.R. with a tester, referring to the following table. If the tester readings very greatly from the values specified in the table on next page, the A.V.R. is faulty.

NOTE : Take teater inaccuracy into account in reading the tester.

(c)IDENTIFYING A.V.R. TROUBLE by MOUNTING and OPERATING in THE GENERATOR SCR or transistor damage cannot be detected by simply looking at the A.V.R. or checking the lead resistance. Check it by mounting the suspectedly faulty A.V.R. in a normal gener- ator, or mount a mormal A.V.R. in a generator which fails to generate voltage.

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Contents Generators Contents － 04－－ 1－ Specifications－ 2－ Performance Curves－ 3－ General Description of Generator－ 4－ Control Panel－ 5－ Serial NumberConstruction and Function Stator－ 6－ Brush / Brush Holder RotorCurrent Transformer Diode Unit RGV13100T only5 A.V.R Automatic Voltage Regulator RGV12100 only ECU Electronic Control Unit－ 8－－ 9－ Idle Control Unit RGV12100 onlyAC Switch NO-FUSE Breaker OIL Pressure SwitchRelief Valve － 10－AC Receptacle RGV13100T－ 11－ AC plug Description － 12－Connecting to Domestic Circuit House Wiring Gfci Receptacle－ 13－－ 14－－ 15－－ 16－ AC Three Phase Receptacle RGV13100T onlyPrimary Exciting Action RGV12100 Description of Generator OperationVoltage Regulating Mechanism RGV12100 － 17－Current Transformer Control RGV13100T Advantages of Current Transformer Control RGV13100T－ 18－ Do not place inflammable materials near the generator Safety PrecautionsOperate the generator on a level surface Do not operate with wet hands or in the rainRange of Applications Incandescent lamp, heater, etc. with a power factorMotor driven tools and light electrical appliances － 20－－ 21－ Appliances without any indication as to power consumption－ 22－ Measuring Procedures Measuring Instruments－ 23－－ 24－ AC Output MeasuringMeasuring Insulation Resistance Stator－ 25－ Control Panel RotorCurrent Transformer RGV13100T － 26－Pilot Lamp and Voltmeter Checking Functional MembersAC Receptacles － 27－－ 28－ RGV12100Rotor Assembly Exciting Coil RGV12100 only－ 29－ A.V.R BrushAutomatic Voltage Regulator － 30－－ 31－ Current Transformer RGV13100T onlyIdle Control Unit RGV12100 only－ 32－－ 33－ Preparation and Precautions Disassembly and AssemblyDisassembly Procedures Control Panel Alternator－ 35－ Component PartsGenerator assembly Control Box RGV12100 Control Box RGV13100T Fuel Tank － 40－ Generator Assembling Procedures Front Cover－ 41－－ 42－ Rear Cover－ 43－ No AC output TroubleshootingAC Voltage is too high or too low Check engine speed Check if engine is overheated－ 45－ Engine dose not run－ 46－ Wiring Diagram－ 47－ Lively Blvd. Wood Dale, IL 60191 Phone 630-350-8200 Fax