Case CONSTRUCTION 3 Series - Page 5

INDEX
5.7 WHEEL HUB (21E) .............................................................................................................................. 61
5.8 WHEEL HUB (121E, 221E, 321E) ....................................................................................................... 70
5.9 WHEEL SHAFT (121E, 221E, 321E) ................................................................................................... 76
5.10 DIFFERENTIAL SUPPORT ............................................................................................................... 80
5.11 DIFFERENTIAL ASSY....................................................................................................................... 88
5.12 LIMITED SLIP DIFFERENTIAL ASSY ............................................................................................... 94
5.13 PINION............................................................................................................................................. 101
6. TROUBLESHOOTING .............................................................................................................................. 107
7. SPECIAL TOOLS...................................................................................................................................... 110
SECTION 33 - BRAKE SYSTEM
1. BRAKE SYSTEM DIAGRAM ........................................................................................................................ 1
1.1 STANDARD DIAGRAM (21E)................................................................................................................ 1
1.2 “HIGH SPEED” DIAGRAM (121E, 221E, 321E) .................................................................................... 2
2. TECHNICAL SPECIFICATIONS................................................................................................................... 3
2.1 BRAKE PEDAL VALVE.......................................................................................................................... 3
2.2 PRESSURE SWITCHES ....................................................................................................................... 3
3. OPERATION ................................................................................................................................................. 4
3.1 SERVICE BRAKE OPERATION ............................................................................................................ 6
3.2 PARKING BRAKE OPERATION............................................................................................................ 8
4. BRAKE PEDAL VALVE................................................................................................................................. 9
5. PRESSURE SWITCHES ............................................................................................................................ 11
6. BRAKE ACCUMULATOR ........................................................................................................................... 12
6.1 TECHNICAL SPECIFICATIONS.......................................................................................................... 12
7. CHECKS AND ADJUSTMENTS ................................................................................................................. 13
7.1 SERVICE BRAKE SYSTEM PRESSURE CHECK .............................................................................. 13
7.2 ACCUMULATOR PRESSURE CHECK ............................................................................................... 14
7.3 PEDAL ANGLE ADJUSTMENT ........................................................................................................... 15
7.4 “INCHING” VALVE ADJUSTMENT...................................................................................................... 16
8. TROUBLESHOOTING ................................................................................................................................ 17
SECTION 35 - HYDRAULIC SYSTEM
1. HYDRAULIC DIAGRAMS ............................................................................................................................. 1
1.1 HYDRAULIC DIAGRAM FOR 21E......................................................................................................... 1
1.2 HYDRAULIC DIAGRAM FOR 21E WITH OPTIONAL OUTFITS........................................................... 3
1.3 HYDRAULIC DIAGRAM FOR 121E....................................................................................................... 5
1.4 HYDRAULIC DIAGRAM FOR 121E WITH OPTIONAL OUTFITS......................................................... 7
1.5 HYDRAULIC DIAGRAM FOR 221E....................................................................................................... 9
1.6 HYDRAULIC DIAGRAM FOR 221E WITH OPTIONAL OUTFITS....................................................... 11
1.7 HYDRAULIC DIAGRAM FOR 321E..................................................................................................... 13
1.8 HYDRAULIC DIAGRAM FOR 321E WITH OPTIONAL OUTFITS....................................................... 15
2. TRANSMISSION......................................................................................................................................... 17
2.1 HYDRAULIC DIAGRAM....................................................................................................................... 17
2.2 OPERATION ........................................................................................................................................ 18
2.3 ADJUSTMENTS................................................................................................................................... 20
3. VARIABLE-DISPLACEMENT PISTON PUMP............................................................................................22
3.1 TECHNICAL SPECIFICATIONS.......................................................................................................... 23
3.2 MAIN VALVES ..................................................................................................................................... 24
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