Generation   Home

Engine • Starting/Charging Systems(H4SO) • Generator • Inspection 2005 Subaru Forester

generation: → 2002 - 2007Release year → 2005 ✔ engine size → 2.5L ✔      add to compare      read later

STARTING/CHARGING SYSTEMS(H4SO) > Generator

INSPECTION

1. DIODE

CAUTION:

Never use a mega tester (measuring use for high voltage) or any other similar measure for this test; otherwise, the diodes may be damaged.

1. Checking positive diode

Check for continuity between the diode lead and positive side heat sink. The positive diode is in good condition if resistance is 1 ? or less only in the direction from the diode lead to heat sink.

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

(A)

Diode lead

(B)

Heat sink (Positive side)

2. Checking negative diode

Check for continuity between the negative side heat sink and diode lead. The negative diode is in good condition if resistance is 1 ? or less only in the direction from the heat sink to diode lead.

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

(A)

Diode lead

(B)

Heat sink (Negative side)

2. ROTOR

1. Slip ring surface

Inspect the slip rings for contamination or any roughness of the sliding surface. Repair the slip ring surface using a lathe or sand paper.

2. Slip ring outer diameter

Measure the slip ring outer diameter. If the slip ring is worn replace rotor assembly.

Slip ring outer diameter:

Standard:

22.7 mm (0.894 in)

Limit:

22.1 mm (0.870 in)

3. Continuity test

Check the resistance between slip rings using circuit tester.

If the resistance is not within specification, replace the rotor assembly.

Specified resistance:

Approx. 1.8 — 2.2 ?

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

4. Insulation test

Check the continuity between slip ring and rotor core or shaft. If resistance is 1 ? or less, the rotor coil is grounded, and so replace the rotor assembly.

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

5. Ball bearing (rear side)

Check the rear ball bearing. Replace if it is noisy or if the rotor does not turn smoothly.

3. STATOR

1. Continuity test

Inspect the stator coil for continuity between each end of the lead wires. If resistance is 1 M? or more, the lead wire is broken, and so replace the stator assembly.

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

(A)

Stator

2. Insulation test

Inspect the stator coil for continuity between stator core and each end of lead wire. If resistance is 1 ? or less, the stator coil is grounded, and so replace the stator assembly.

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

4. BRUSH

1. Measure the length of each brush. If wear exceeds the service limit, replace the brush. Each brush has the service limit mark (A) on it.

Brush length:

Standard:

18.5 mm (0.728 in)

Service limit:

5.0 mm (0.197 in)

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

2. Checking brush spring for proper pressure

Using a spring pressure indicator, push the brush into the brush holder until its tip protrudes 2 mm (0.08 in). Then measure the pressure of brush spring. If the pressure is less than 2.2 N (224 g, 7.91 oz), replace the brush spring with a new one. The new spring must have a pressure of 4.8 to 6.0 N (489 to 612 g, 17.26 to 21.60 oz).

2005 Subaru Forester Engine • Starting/Charging Systems(H4SO) • Generator • Inspection

5. BEARING (FRONT SIDE)

Check the front ball bearing. If the resistance is felt while rotating, or if noise is heard, replace the ball bearing.

    2017-02-20 18:50:30    2017-05-11 10:18:54




I advise you to watch 2002 - 2007

© 2018. suforester.com
Order call back