Case 580SR, Service Manual

Page: 222 / 1068

156 SECTION 21 - TRANSMISSION
3. Teflon seals must be sized prior to assembly.
Grease the inner and outer diameter of the
clutch drum before assembly.
4. Pump must be filled up with test oil prior to as-
sembly.
5. Pump drive shaft must be installed after torque
converter.
6. Forward low, reverse, 1st, and 2nd clutch: 9
separator plates with inner splines. 8 friction
plates (friction material both sides) with outer
splines, 2 1-side friction plates (friction material
1 side) with outer splines.
Start with one 1-side friction plate, metal against
piston, then alternately separator and friction
plate.
End with a 1-side friction plate, metal side
against end plate or disc spring.
Be sure disc spring is mounted as shown.
• Clearance: forward low and reverse:
min. clearance = 2.79 mm (for carbon plates)
max. clearance = 5.21 mm (for carbon plates)
If clearance is more than 4.79 mm, add one
separator plate upon last separator plate.
• Clearance: first and second:
min. clearance = 2.54 mm
max. clearance = 5.41 mm
If clearance is more than 4.54 mm, add one
separator plate upon last separator plate.
7. • Forward high clutch: 4 separator plates, 3 friction
plates and two 1-side friction plates.
• Assembly see (6)
• Clearance:
min. clearance = 1.24 mm (for carbon plates)
max. clearance = 2.76 mm (for carbon plates)
8. • Disconnect clutch: 12 separator plates, 11 fric-
tion plates and two 1-side friction plates.
• Assembly see (6)
• Clearance:
min. clearance = 3.66 mm (for carbon plates)
max. clearance = 6.78 mm (for carbon plates)
If clearance is more than 5.66 mm, add one
separator plate upon last separator plate.
9. Installation force of disc spring is 3280 N.
10. Be sure that shielded and sealed bearings are
mounted as shown.
11. Seals must be pressed in perpendicular upon
shaft axis from bearing side. Except lower rear
output.
12. Plug to be screwed in and torqued but without
Loctite.
13. Place the concave side of the spring of the first
clutch first disc against the wear sleeve of the
clutch piston.
Remaining 10 springs to be stacked alternately
reversed as shown.
14. Shipping strap: only used during shipment of the
individual transmission.
NOTE: check if safety valve and valve block are
tested before assembly.
15. Heat gears up to 150 °C before assembling.
16. Parking brake.
17. Mounting: tighten locking nuts with 0.25 to 1.25
mm clearance between nuts and sleeves.
Adjustment: loosen the (2) adjustment locking
nuts (1 and 2). Put lever in correct position.
Tighten inner adjustment nut (2) with 11 Nm. Back
off inner adjustment nut (2).
Tighten outer locking nut (1) against inner adjust-
ment nut (2). Clearance must be from 0.8 to 1.1
mm.
F27753
1
2
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