SkyTrak 3606 Service Manual - Manual (Page 126)

Section 6
6-2
Introduction
Legend
The Carraro Model TB 420 transfer case is a single-
speed, mechanical unit designed for heavy-duty
industrial use. The transfer case is located beneath the
frame of the vehicle, mounted to the engine mount
(subframe), behind the transmission and ahead of the
rear axle.
Torque (twisting power) is transferred through a single
output shaft from the Clark-Hurth T 12000 transmis-
sion, to the transfer case, and out to the drive axles via
two drive shafts, one for the front axle, one for the rear
axle. The transfer case is equipped with a set of four
gears having a 1:1 drive ratio. The drive shafts are of
industrial-duty, welded-steel, tube-type design, sup-
ported by Cardan-type cross and bearing tapered roller
bearing assemblies (universal joints) secured to flanges
and slip yokes.
Detailed transfer case service instructions covering
repair, disassembly, reassembly, adjustment and trou-
bleshooting information is provided in the Carraro
Model TB 420 Transfer Box Maintenance and Repair
Manual, Carraro part number CA355026. For example,
transfer case shaft bearing adjustment is accomplished
during disassembly/reassembly procedures not cov-
ered in this manual; consult the Carraro manual for
information.
IMPORTANT: To help ensure optimum performance,
the drive shaft assemblies are specially balanced as a
unit at the factory. When servicing any flange yoke, slip
yoke or drive shaft tube, order a complete assembly if
components are bent or damaged. Refer to the Sky
Trak International Model 3606 Parts Manual for order-
ing information.
The transfer case and drive shafts should be checked
and repaired only by experienced service technicians
who are aware of all safety instructions and particular
component features.
Model 3606 • Origin 10/99
1. M12 x 30 Bolt
2. Shaft Cover
3. O-ring
4. Shim (different thicknesses
available)
5. Snap Ring
6. Washer, 51 x 40,2 x 3
7. Bearing
8. Transfer Case Housing
9. Oil Plug, M22 x 1,5
10. Gear, Z=37
11. Bearing
12. Oil Seal Ring, 55 x 72 x 10
13. Input Shaft
14. Gear Pin
15. Plug
16. Ring Nut, M25 x 1,5
17. O-ring
18. Centering Ring
19. O-ring
20. Flange
21. Oil Seal Ring, 58 x 80 x 10
22. Spacer, 55 x 35 x 17
23. Shim (different thicknesses
available)
24. Bolt, M10 x 30
25. Drop Box Cover
26. O-ring
27. Bearing
28. Washer, 22 x 26 x 1,5
29. Breather Extension
30. Washer, 10 x 14 x 1,5
31. Breather, M10 x 1
32. Bolt
33. Washer, 8 x 12 x 1,5
34. Output Shaft
35. Bolt, M8 x 22
36. Cover
37. Shim (different thicknesses
available)
38. Hex Head Cap Screw,
M12 x 1,75 x 35
39. Flat Washer, M12
40. Flange Yoke (see note)
41. Cross and Bearing Assembly
42. Tube Assembly (see note)
43. Dust Cap Kit
44. Slip Yoke (see note)
45. Grease Nipple
46. Loctite ® #242 (blue)
NOTE: To help ensure optimum perfor-
mance, drive shaft assemblies are spe-
cially balanced at the factory. When
servicing any flange yoke, slip yoke, or
drive shaft tube, order a complete as-
sembly if components are bent or dam-
aged. Refer to the Sky Trak International
Model 3606 Parts Manual for ordering in-
formation.