Disassemble/assemble output shaft with center and rear gear set

AR27.50-S-0810S

25.5.10

TRANSMISSION 722.6 in MODEL 636, 639

D27.50-1120-09

2 Teflon rings

3 Needle cage

4 Thrust plate

5 Rear gear set

10 Thrust plate

11 Circlip

12 Needle roller bearing

6 Rear hollow shaft

7 K3 clutch

8 Thrust plate

9 Needle roller bearing

 	Disassemble/assemble
1	Remove main components of transmission		AR27.50-S-0610S
2	Remove needle roller bearing (12).
3	Remove locking ring (11)	Circlip pliers for external circlip
4	Remove thrust washer (10), needle roller bearing (9) and thrust washer (8).
5	Remove K3 clutch (7).	 According to findings: 
		Disassemble/assemble K3 clutch (7).	AR27.51-S-0830S
6	Remove rear hollow shaft (6).	 According to findings: 
		Disassemble/assemble rear hollow shaft (6) with rear freewheel.	AR27.50-S-0850S
7	Remove teflon rings (2).	 Installation: install new teflon rings (2).
8	Remove thrust washer (4).	 Installation: note installation position.
9	Remove needle cage (3).
10	Assemble in the reverse order
	Checking
11	Check axial play between shim and circlip, adjust if necessary.		AR27.50-S-0810-01S
		Axial play between shim and circlip	*BE27.50-N-1003-01B
		Feeler gauge

Test values for gear set

Number	Designation		Trans-mission 722.680 682	Trans-mission 722.681/ 683/684/ 685/686


BE27.50-N-1003-01B	Axial play between shim and circlip	mm	0.15...0.6	0.15...0.6