Nag1 Automatic Transmission (Service Information): Clutches-Holding: Description
| 1 - B1 CLUTCH | 10 - CENTER PLANETARY GEARSET ANNULUS GEAR |
| 2 - EXTERNALLY TOOTHED DISC | 11 - CENTER PLANETARY GEARSET PINION GEARS |
| 3 - INTERNALLY TOOTHED DISC | 12 - CENTER PLANETARY GEARSET SUN GEAR |
| 4 - B3 CLUTCH | 13 - FRONT PLANETARY GEARSET PINION GEARS |
| 5 - B2 CLUTCH | 14 - FRONT PLANETARY GEARSET SUN GEAR |
| 6 - B3 CLUTCH PISTON | 15 - B1 CLUTCH INTERNALLY TOOTHED DISC CARRIER |
| 7 - B2 CLUTCH PISTON | 16 - B1 CLUTCH PISTON |
| 8 - B2 CLUTCH INTERNALLY TOOTHED DISC CARRIER | 17 - B1 CLUTCH EXTERNALLY TOOTHED DISC CARRIER |
| 9 - REAR PLANETARY GEARSET PLANETARY CARRIER |
Three multiple-disc holding clutches, the front, B1 (1), middle, B3 (4), and rear multiple disc clutches, B2 (5), are located in the planetary gear sets in the transmission housing. See Fig 1.
A multiple-disc holding clutch consists of a number of internally toothed discs (3) on an internally toothed disc carrier and externally toothed discs (2) on an externally toothed disc carrier, which is rigidly connected to the transmission housing.