S0702170K
Page 27
Hydraulic System Troubleshooting, Testing and
Adjustment
Pressure should stay consistently above 2.5 bar (36 psi). If pressure falls below the
recommended minimum level, forceful acceleration of the swing motor could lead to cavitation
of the circuit and stalling, slowed rotation, noise and possible damage.
2.
If main inlet and outlet pressures were off in the preceding tests in Step 1, adjust swing relief valve
pressure.
Following adjustment, repeat the operating pressure tests (with gauges connected to the inlet and
outlet test ports on top of the swing motor) and check pressures with the swing locks engaged and
released.
If pressure adjustment fails to restore adequate performance, proceed to the Troubleshooting –
Swing table.
3.
If pressure tests were at recommended levels through the main inlet and outlet ports, and through the
“SH” port of the swing brake, the causes of poor swing performance could include a faulty swing
motor, drive train overloading or gearbox defect, or a problem in the brake assembly or swing control
valve. Proceed to the troubleshooting information in the next procedure.
(Models Solar 225LC-V, 300LC-V, and 300LL)
If pressure through the “SH” port was tested below the minimum 13 bar (190 psi) level, check the
shuttle valve in the rear compartment behind cabin. When pressure through the port is at the
recommended level, the brake release valve should disengage the swing brake, allowing the swing
motor to rotate the excavator. If pressure adjustment to the valve has been restored but the brake still
fails to release, the brake piston or friction plate may be frozen, requiring disassembly of the motor
and parts repair/replacement.
(Model Solar 255LC-V)
If pressure through the “SH” port was tested below the minimum 13 bar (190 psi) level, check the
pressure through "PA" port of the control valve. When pressure through the port is at the
recommended level, the brake release valve should disengage the swing brake, allowing the swing
motor to rotate the excavator. If pressure adjustment to the valve has been restored but the brake still
fails to release, the brake piston or friction plate may be frozen, requiring disassembly of the motor
and parts repair/replacement.
4.
If pressure tested at the motor makeup valve falls below recommended minimum level, and
consequent problems with cavitation, stalling and surging are observed, check the restriction valve. If
pressure adjustment to the valve has been restored but if problems with cavitation continues,
disassemble the upper swing motor housing and clean or replace assembly components as required.
NOTE:
If all tested pressures are at or above recommended levels, and there are no mechanical
problems in the drive train or in the motor/brake assembly, the problem will require further
hydraulic troubleshooting. It’s also possible that a defective joystick, an intermittent short in
an electrical control circuit or a problem in the e-EPOS circuit is causing diminished swing
performance. Pull out the e-EPOS indicator panel from underneath the operator’s seat
and perform the self-diagnosis test. If the display panel reads code “0.2,” it is reporting that
the swing priority proportional valve is not functioning, except in the minimum “fail-safe”
mode. Refer to the Electrical section of this book for more information.
Содержание Solar 225LC-V
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Страница 7: ...1SAFETY ...
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Страница 46: ...S0102000 Page 38 Track Excavator Safety ...
Страница 47: ...1SPECIFICATIONS ...
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Страница 54: ...S0205015K Page 6 Specifications for Solar 225LC V Return to Master Table of Contents ...
Страница 70: ...S0205015K Page 22 Specifications for Solar 225LC V Return to Master Table of Contents ...
Страница 71: ...1GENERAL MAINTENANCE ...
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Страница 86: ...S0302000 Page 14 General Maintenance Procedures ...
Страница 99: ...1UPPER STRUCTURE ...
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Страница 102: ...S0402040K Page 2 Cab TABLE OF CONTENTS Removal 3 Installation 6 ...
Страница 110: ...S0403050K Page 2 Counterweight Return to Master Table of Contents TABLE OF CONTENTS General 3 Removal 5 Installation 7 ...
Страница 116: ...S0403050K Page 8 Counterweight Return to Master Table of Contents ...
Страница 140: ...S0407000 Page 6 Swing Bearing ...
Страница 165: ...1LOWER STRUCTURE AND CHASSIS ...
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Страница 190: ...S0505030 Page 24 Track Assembly Return to Master Table of Contents 7 Tighten plug 1 Figure 49 Figure 49 ...
Страница 192: ...S0505030 Page 26 Track Assembly Return to Master Table of Contents ...
Страница 193: ...1ENGINE AND DRIVE TRAIN ...
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Страница 205: ...S0605060K Page 11 Air Conditioner Face and Defroster ARS1300L Figure 12 ...
Страница 229: ...S0609000 Page 9 Drive Coupling Main Pump Figure 10 DRIVE COUPLING INSTALLATION UCHIDA PUMP ...
Страница 234: ...S0609000 Page 14 Drive Coupling Main Pump ...
Страница 235: ...1HYDRAULICS ...
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Страница 249: ...S0702170K Page 13 Hydraulic System Troubleshooting Testing and Adjustment ...
Страница 272: ...S0702170K Page 36 Hydraulic System Troubleshooting Testing and Adjustment ...
Страница 274: ...S0703010K Page 2 Accumulator TABLE OF CONTENTS General Description 3 Specifications 4 ...
Страница 297: ...S0705000 Page 9 Cylinders ...
Страница 301: ...S0705000 Page 13 Cylinders ...
Страница 311: ...S0705000 Page 23 Cylinders ...
Страница 312: ...S0705000 Page 24 Cylinders SLIPPER SEAL JIG ARS4770L A 2 A A 14 B B 40 5 R 1 0 R1 1 0 Figure 10 ...
Страница 315: ...S0705000 Page 27 Cylinders ...
Страница 316: ...S0705000 Page 28 Cylinders SLIPPER SEAL STRAIGHTENING JIG ARS4780L 2 R1 50 25 100 A 15 A 2 5 R 2 C 1 Figure 11 ...
Страница 324: ...S0705000 Page 36 Cylinders 17 Force out pin bushing 1 from body of cylinder Figure 28 ...
Страница 328: ...S0705000 Page 40 Cylinders ...
Страница 335: ...S0707200 Page 7 Swing Motor Return to Master Table of Contents ...
Страница 336: ...S0707200 Page 8 Swing Motor Return to Master Table of Contents PARTS LIST Model Solar 250LC V 255LC V Figure 4 ...
Страница 341: ...S0707200 Page 13 Swing Motor Return to Master Table of Contents SPECIAL TOOLS Figure 6 ...
Страница 358: ...S0707200 Page 30 Swing Motor Return to Master Table of Contents ...
Страница 368: ...S0707330 Page 10 Travel Motor With Gearbox GM35VL Return to Master Table of Contents TRAVEL MOTOR PARTS LIST Figure 12 ...
Страница 424: ...S0708320 Page 12 Main Pump With Regulator Return to Master Table of Contents PARTS LIST Main Pump Figure 13 ...
Страница 426: ...S0708320 Page 14 Main Pump With Regulator Return to Master Table of Contents Pump Regulator Figure 14 ...
Страница 432: ...S0708320 Page 20 Main Pump With Regulator Return to Master Table of Contents Model SOLAR 225LC V BBS0030L Figure 16 ...
Страница 452: ...S0708320 Page 40 Main Pump With Regulator Return to Master Table of Contents ...
Страница 458: ...S0709401K Page 6 Main Control Valve Kayaba Figure 1 ...
Страница 459: ...S0709401K Page 7 Main Control Valve Kayaba Figure 2 ...
Страница 461: ...S0709401K Page 9 Main Control Valve Kayaba ...
Страница 463: ...S0709401K Page 11 Main Control Valve Kayaba Figure 4 ...
Страница 475: ...S0709401K Page 23 Main Control Valve Kayaba Figure 16 ...
Страница 508: ...S0709401K Page 56 Main Control Valve Kayaba Figure 54 ...
Страница 558: ...S0792105K Page 4 Hydraulic Schematic Solar 225LC V 225NLC V Return to Master Table of Contents SOLAR 225LC V Figure 2 ...
Страница 559: ...S0792105K Page 5 Hydraulic Schematic Solar 225LC V 225NLC V Return to Master Table of Contents BBS0070L SOLAR 225LC V ...
Страница 560: ...S0792105K Page 6 Hydraulic Schematic Solar 225LC V 225NLC V Return to Master Table of Contents SOLAR 225NLC V Figure 3 ...
Страница 561: ...S0792105K Page 7 Hydraulic Schematic Solar 225LC V 225NLC V Return to Master Table of Contents BDS0110L SOLAR 225NLC V ...
Страница 562: ...S0792105K Page 8 Hydraulic Schematic Solar 225LC V 225NLC V Return to Master Table of Contents ...
Страница 563: ...1ELECTRICAL SYSTEM ...
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Страница 618: ...S0802220K Page 54 Electrical System ...
Страница 637: ...S0802220K Page 73 Electrical System ...
Страница 644: ...S0892105K Page 4 Electrical Schematic Solar 225LC V 225NLC V Return to Master Table of Contents SOLAR 225LC V Figure 2 ...
Страница 647: ...S0892105K Page 7 Electrical Schematic Solar 225LC V 225NLC V Return to Master Table of Contents BDS0190L S225NLC V ...
Страница 648: ...S0892105K Page 8 Electrical Schematic Solar 225LC V 225NLC V Return to Master Table of Contents ...
Страница 649: ...1ATTACHMENTS ...
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Страница 665: ...S0904015K Page 7 Bucket 5 Roll the new O ring 1 Figure 9 into the O ring groove BBO0022L 1 Figure 9 ...
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