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Differential, Remove and Install (AF 20)
 Remove
Remove transmission – see operation "Transmission, Remove
and Install (AF 20)". Secure converter against falling out.
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Attach transmission to KM-694-A (2). Attach assembly to KM-113-2
(1).
Remove fluid drain bolt (3), drain transmission fluid and
collect for damage diagnosis – see operation "Transmission
Fluid Condition, Check (AF 13-II/AF 17/AF 20/AF 22)".
Remove converter and fluid pump seal ring – see operation
"Converter and/or Fluid Pump Seal Ring, Replace (AF 13-II/AF 17/AF
20/AF 22)".
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Remove fluid pump assembly (1) with multi-disc brake B1 and B2
– see operation "Fluid Pump Assembly with Multi-disc Brakes
B1 and B2, Remove and Install (AF 20)".
Remove freewheel F1 (2) – see operation "Freewheel F1,
Remove and Install (AF 20)".
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Remove auxiliary housing (1) from main housing – 15
fastening bolts, note different bolt lengths.
If necessary, detach housing parts with plastic hammer.
Remove differential (2) out of main housing.
 Clean
Carefully clean all components and check for damage.
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Caution
After replacing main housing or auxiliary housing, the
pretension of the differential tapered roller bearing must be
adjusted before installing the differential – see operation
"Pretension of Differential Tapered Roller Bearing, Adjust (AF
20)".
Clean
Remove gasket residue and carefully clean sealing surfaces of
main and auxiliary housing – ensure that no gasket residue
falls into the transmission housing.
Install
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Insert differential (1) into main housing (2).
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Coat sealing surface (2) with sealing compound. Attach auxiliary
housing (1) to main housing – 15 fastening bolts, note
different bolt lengths.
Note: Only use the
prescribed sealing compound as other sealing material leads to
errors in the transmission.
Torque
Auxiliary housing to main housing – 30 Nm / 22 lbf.
ft.
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Install
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Install freewheel F1 (1) – see operation "Freewheel F1,
Remove and Install (AF 20)".
Install fluid pump assembly (2) with multi-disc brake B1 and B2
– see operation "Fluid Pump Assembly with Multi-disc Brakes
B1 and B2, Remove and Install (AF 20)".
Install fluid pump seal ring and converter – see operation
"Converter and/or Fluid Pump Seal Ring, Replace (AF 13-II/AF 17/AF
20/AF 22)". Secure converter against falling out.
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Attach fluid drain bolt (3) with new seal ring to transmission
– tightening torque 40 Nm / 29.5 lbf. ft.
Remove transmission assembly from KM-113-2 (1) with
KM-694-A.
Remove transmission from KM-694-A (2).
Install transmission – see operation "Transmission, Remove
and Install (AF 20)".
Charge transmission fluid.
Inspect
Check and correct level of transmission fluid – see
operation "Transmission Fluid Level, Check and Correct (AF 13-II/AF
17/AF 20/AF 22)".
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