K2

NAG1 TRANSMISSION

DRIVING CLUTCH K2
DISASSEMBLY
1. Remove snap-ring (15) from the K1 inner multiple-disc carrier with integrated front gear set (1) and take off hollow gear (14).





2. Remove drive shaft with clutch K2 (3) (Fig. 79).
3. Remove needle thrust bearing (2).
4. Remove snap-ring (13) (Fig. 79) from K2 outer multiple-disc carrier.
5. Take out multiple-disc pack (12).
6. Take out disk spring (11) (Fig. 79).





7. Fit Multi-use Spring Compressor 8900 (Fig. 80) onto spring retainer (9) and press until snap-ring (10) is released.
8. Remove snap-ring (10) (Fig. 79).
9. Take out disc spring (7) and pull piston (6) out of outer multiple-disc carrier.

ASSEMBLY





1. Install piston (6) (Fig. 81) in outer multiple disc carrier. Inspect seals (4 and 5), replace if necessary. The rounded edges of the seals must point to the outside.
2. Insert disk spring (7) and spring retainer (9). Insert disk spring (7) with curved side pointing toward spring retainer (9). Inspect seal (8) (Fig. 81), replace if necessary.





3. Place Multi-use Spring Compressor 8900 (Fig. 82) on spring plate (9) and press until the groove of the snap-ring is exposed.
4. Insert snap-ring (10).
5. Insert disk spring (11).

NOTE: Pay attention to sequence of discs. Place new friction multiple-discs in ATF fluid for one hour before installing.

6. Insert multiple-disk set (12) into outer multiple-disk carrier.
7. Fit snap-ring (13).
8. Measure K2 clutch clearance.





a. Mount Pressing Tool 8901 (1) (Fig. 83) on outer multiple disc.
b. Using a lever press, compress pressing tool as far as the stop (then the marking ring is still visible).





c. Using a feeler gauge, determine the play "L" (Fig. 84) at three points between the snap-ring (6) and outer multiple-disc (4).
d. During the measurement the snap-ring (6) must contact the upper bearing surface of the groove in the outer multiple-disc carrier.
e. The correct clutch clearance is 2.3 - 2.7 mm (0.091 - 0.106 inch) for three friction disc versions, 2.4 - 2.8 mm (0.095 - 0.110 inch) for four disc versions, 2.5 - 2.9 mm (0.099 - 0.114 inch) for five disc versions, and 2.7 - 3.1 mm (0.106 - 0.122 inch) for six disc versions.
f. Adjust with snap-ring (6), if necessary. Snap rings are available in thicknesses of 2.3 mm (0.091 inch), 2.6 mm (0. 102 inch), 2.9 mm (0. 114 inch), 3.2 mm (0.126 inch), 3.5 mm (0.138 inch), and 3.8 mm (0.150 inch).
9. Insert axial needle bearing (2) into K1 inner multiple-disk carrier. Insert axial needle bearing (2) with a little grease to prevent it slipping.
10. Install drive shaft in K1 inner multiple-disc carrier with integrated front gear set (3).
11. Fit internally-geared wheel (14). Pay attention to installation position.