6.4.4.2 Assembling the rear axle brakes ..............................6-83
6.4.4.3 Removing/refitting the assisted-brake master cylinders ..............6-88
6.4.5 Service tools ...................................................6-91
6.4.5.1 General ................................................6-91
6.4.5.2 Tractor braking - Service tools ................................6-91
6.5 HA140/Hydraulic trailer braking ....................................6-93
6.5.1 General .......................................................6-93
6.5.1.1 Trailer brake unit ..........................................6-93
6.5.2 Hydraulic test ..................................................6-94
6.6 GPA20 - General ..................................................6-96
6.6.1 General .......................................................6-96
6.6.2 Principles of operation ............................................6-96
6.6.3 Layout of components ............................................6-97
6.6.3.1 Center housing assembly (longitudinal cross-section) ...............6-97
6.6.3.2 Center housing assembly (transverse cross-section) ................6-98
6.7 GPA20/Heavy Duty and Heavy Duty + final drives ...................6-99
6.7.1 General .......................................................6-99
6.7.1.1 General ................................................6-99
6.7.1.2 Principles of operation .....................................6-99
6.7.2 Layout of components ...........................................6-101
6.7.2.1 View of the assembly .....................................6-101
6.7.2.2 Blown-up view ..........................................6-103
6.7.3 Disassembly/reassembly .........................................6-105
6.7.3.1 Removing/refitting a final drive ..............................6-105
6.7.3.2 Removing/refitting and disassembling/reassembling a planet carrier ...6-106
6.7.3.3 Replacing tapered roller bearings and seals .....................6-109
6.7.3.4 Shimming the tapered roller bearings of the axle shaft .............6-112
6.7.3.5 Replacing a wheel stud ....................................6-116
6.7.4 Service tools ..................................................6-116
6.7.4.1 General ...............................................6-116
6.7.4.2 GPA20/Final drives - Service tools ............................6-117
6.8 GPA20/Super Heavy Duty final drives ..............................6-118
6.8.1 General ......................................................6-118
6.8.1.1 General ...............................................6-118
6.8.1.2 Principles of operation .....................................6-118
6.8.2 Layout of components ...........................................6-119
6.8.2.1 View of the assembly .....................................6-119
6.8.2.2 Blown-up view ..........................................6-121
6.8.3 Disassembly/reassembly .........................................6-123
6.8.3.1 Removing/refitting a final drive ..............................6-123
6.8.3.2 Disassembling/reassembling the planet carrier ...................6-124
6.8.3.3 Fitting and shimming the tapered roller bearings of the axle shaft .....6-126
6.8.3.4 Replacing a wheel stud ....................................6-128
6.8.4 Service tools ..................................................6-129
6.8.4.1 General ...............................................6-129
6.8.4.2 GPA20/Final drives - Service tools ............................6-129
6.9 GPA20/Differential ...............................................6-130
6.9.1 General ......................................................6-130
6.9.2 Layout of components ...........................................6-131
6.9.2.1 View of the assembly .....................................6-131
6.9.2.2 Blown-up view ..........................................6-133
6.9.3 Disassembly/reassembly .........................................6-135
6.9.3.1 Removing the left-hand flange and differential lock assembly ........6-135
6.9.3.2 Disassembling and reassembling the differential lock assembly .......6-136
6.9.3.3 Refitting the left-hand flange and the differential lock assembly .......6-137
6.9.3.4 Removing the differential assembly ...........................6-138
6.9.3.5 Disassembling the differential assembly and the crown wheel .......6-139
Table of contents
MF 6700 S series tractors
ACT0025630
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