Disassemble the starter motor as shown in the illustration.
1. Housing end (rear bracket); 2. Brush spring (2 pcs); 3. Brush holder; 4. Terminal; 5. Washer; 6. Armature; 7. Starter motor case; 8. Seal ring (2 pcs); 9. Washer; 10. Slip washer; 11. Thrust stopper; 12. O-ring (2 pcs); 13. O-ring; 14. Housing end (front bracket)