SECTION J
BRAKE SYSTEM
INDEX
Service Brake Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J2-1
Secondary Braking and Automatic Apply . . . . . . . . . . . . . . . . . . . . . . . . . . J2-3
Parking Brake Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J2-3
Brake Lock Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J2-4
Warning Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J2-4
Brake Valve Cut-Away . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J2-5
BRAKE CIRCUIT COMPONENT SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3
Brake Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-1
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-2
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-3
Cleaning and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-6
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-6
Differential Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-9
Valve Bench Test and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-10
Differential Pressure Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . J3-11
Installation of Brake Pedal Actuator Assembly to Brake Valve . . . . . . . . . . . . . J3-13
Installation of Retard Pedal to Brake Valve . . . . . . . . . . . . . . . . . . . . . . . J3-13
Dual Relay Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-15
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-17
Cleaning and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-17
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-17
Differential Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-18
Valve Test and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-19
Differential Pressure Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . J3-21
Hydraulic Brake Accumulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-22
Brake Accumulator Bleeddown Procedure . . . . . . . . . . . . . . . . . . . . . . . J3-22
Accumulators (Hydraulic Components Cabinet) . . . . . . . . . . . . . . . . . . . . J3-22
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-22
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-22
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-22
Cleaning and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-23
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-24
Charging Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-25
Accumulators (Frame Mounted) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-26
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-26
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-26
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-27
Cleaning and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-27
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-28
Accumulator Charging Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-29
Retarder Control Lever (Steering Column-mounted) . . . . . . . . . . . . . . . . . . . . J3-30
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-30
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-30
Disassembly and Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-31
Potentiometer Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-31
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . J3-31
J01027 03/01
Index
J1-1
Summary of Contents for 930E-2
Page 1: ......
Page 2: ......
Page 4: ...NOTES ...
Page 8: ...KOMATSU MODEL 930E Dump Truck A 4 Introduction A00017 03 01 ...
Page 10: ...NOTES A1 2 Index A01001 2 94 ...
Page 12: ...930E MAJOR COMPONENTS A2 2 Major Component Description A02055 ...
Page 35: ...START HERE Walk Around Inspection A03017 General Safety and Operating Instructions A3 21 ...
Page 46: ...NOTES A3 32 General Safety and Operating Instructions A03017 ...
Page 78: ...NOTES B1 2 Index B01016 ...
Page 88: ...NOTES B3 6 Dump Body B03013 03 01 ...
Page 92: ...NOTES B4 4 Fuel Tank B04015 ...
Page 94: ...NOTES C1 2 Index C01021 03 01 ...
Page 118: ...NOTES C5 6 Air Filtration System C05013 5 98 ...
Page 126: ...NOTES D2 6 24VDC Electric Supply System D02018 ...
Page 142: ...NOTES D3 16 24VDC System Components D03019 04 01 ...
Page 146: ...FIGURE 2 1 PROPULSION SYSTEM DIAGRAM E2 2 Electrical Propulsion System Components E02014 3 01 ...
Page 196: ...NOTES E2 52 Electrical Propulsion System Components E02014 3 01 ...
Page 240: ...NOTES E3 44 AC Drive System Electrical Checkout Procedure 3 01 E03015 Release 17 Software ...
Page 242: ...NOTES G1 2 Index G01017 ...
Page 250: ...NOTES G2 8 Tires and Rims G02015 ...
Page 274: ...NOTES H1 2 Index H01013 04 01 ...
Page 282: ...NOTES H2 8 Front Suspensions H02013 2 01 ...
Page 288: ...NOTES H3 6 Rear Suspensions H03013 ...
Page 334: ...NOTES J3 32 Brake Circuit Component Service J03019 1 99 ...
Page 378: ...NOTES L2 8 Hydraulic System L02028 ...
Page 401: ...FIGURE 4 5 FLOW AMPLIFIER VALVE L04031 Steering Circuit L4 7 ...
Page 403: ...FIGURE 4 6 FLOW AMPLIFIER NO STEER L04031 Steering Circuit L4 9 ...
Page 405: ...FIGURE 4 7 FLOW AMPLIFIER LEFT STEER L04031 Steering Circuit L4 11 ...
Page 407: ...FIGURE 4 8 FLOW AMPLIFIER RIGHT STEER L04031 Steering Circuit L4 13 ...
Page 409: ...FIGURE 4 9 FLOW AMPLIFIER NO STEER EXTERNAL SHOCK LOAD L04031 Steering Circuit L4 15 ...
Page 414: ...NOTES L4 20 Steering Circuit L04031 ...
Page 422: ...NOTES L5 8 Steering Control Unit L05021 ...
Page 429: ...L06021 Steering Circuit Component Repair L6 7 ...
Page 450: ...NOTES L6 28 Steering Circuit Component Repair L06021 ...
Page 466: ...NOTES L7 16 Hoist Circuit L07023 ...
Page 492: ...NOTES L9 6 Hydraulic System Filters L09008 ...
Page 504: ...NOTES L10 12 Hydraulic Check out Procedure L10012 ...
Page 508: ...NOTES M1 2 Index M01034 03 01 ...
Page 518: ...NOTES M2 3 10 Ansul Checkfire Electric Detection and Actuation System M02003 ...
Page 524: ...NOTES M5 4 Wiggins Quick Fill Fuel System M05002 10 96 ...
Page 532: ...NOTES M8 8 Special Tools M08012 9 99 ...
Page 560: ...NOTES M9 28 Air Conditioning System M09010 6 97 for HFC 134a Refrigerant ...
Page 618: ...M20 20 Payload Meter II M20007 10 00 ...
Page 619: ...M20007 10 00 Payload Meter II M20 21 ...
Page 627: ...M20007 10 00 Payload Meter II M20 29 ...
Page 634: ...NOTES N1 2 Index N01020 03 01 ...
Page 654: ...NOTES N3 6 Cab Components N03011 7 98 ...
Page 660: ...NOTES N4 6 Operator Comfort N04020 ...
Page 686: ...NOTES N5 26 Operator Cab Controls N05044 ...
Page 688: ...NOTES P1 2 Index P01024 ...
Page 691: ...P02034 Lubrication and Service P2 3 ...
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Page 737: ...NOTES R1 2 930E Schematics R01048 with Cummins QSK60 Series Engine ...
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