Bench Testing: Rotor

To test rotor for an open circuit, use ohmmeter to check for continuity between slip rings on end of rotor. See Fig 1 .
Continuity should exist and resistance should be within specification. See ROTOR SPECIFICATIONS table. Replace rotor if no continuity exists or resistance is not within specification. See OVERHAUL .
To test rotor for a grounded circuit, use an ohmmeter to check for no continuity between each slip ring and rotor. See Fig 1 . Replace rotor if continuity exists. See OVERHAUL .
Using caliper, measure outside diameter of each slip ring. See ROTOR SPECIFICATIONS table. Replace rotor if outside diameter is not within specification. See OVERHAUL .

ROTOR SPECIFICATIONS

Application

Specification

Rotor Resistance

Esteem & Grand Vitara

2.9 Ohms

Swift

3.1-3.5 Ohms

Vitara

2.5-2.9 Ohms

XL7

1.6-2.0 Ohms

Rotor Slip Ring Outside Diameter

Esteem

Standard

.567" (14.4 mm)

Wear Limit

.551" (14.0 mm)

Grand Vitara & XL7

Standard

.557"-.567" (14.2-14.4 mm)

Wear Limit

.504" (12.8 mm)

Swift

⁽¹⁾

Vitara

⁽¹⁾

⁽¹⁾	Information is not available from manufacturer.

Fig 1: Testing Rotor For Open Or Grounded Circuits (Typical)

Courtesy of SUZUKI OF AMERICA CORP.