6.
Remove the cap from the bleeder (3) for arm cylinder and
bucket cylinder.
NOTICE
• Do not stand in front of the bleeder (3) for arm cyl-
inder and bucket cylinder during this work. Oil may
spurt out due to the remaining pressure in the pipe
when loosening the bleeder (3) for arm cylinder
and bucket cylinder.
7.
Install the hose (A) to the bleeder (3) for arm cylinder and
bucket cylinder. Insert the opposite end of the hose A into
the oil container B. The oil is drained from the hose (A) to the oil container.
8.
Gradually loosen the bleeder (3)for arm cylinder and buck-
et cylinder a half turn.
NOTICE
• Do not loosen the bleeder (3) for arm cylinder and
bucket cylinder more than a half turn.
• Bleeders (4) for boom cylinder are at the positions
shown in the figure. Release the remaining pres-
sure from the boom cylinder circuit according to
the procedure described above.
9.
When oil starts to flow out from the hose (A), tighten the
bleeder (3) for arm cylinder and bucket cylinder.
3
Bleeder (3) for arm cylinder and bucket cylinder:
11 to 15 Nm {1.1 to 1.5 kgm}
10. Disconnect the hose (A), and put the cap on the bleeder (3) for arm cylinder and bucket cylinder.
Method for releasing remaining pressure in hydraulic cylinder circuit when con-
necting the pipe
Perform the same work as that of “Method for releasing re-
maining pressure in hydraulic cylinder circuit when disconnect-
ing the pipe” for releasing the remaining pressure.
• However, use the bleeder (5) which is attached to the plug
for releasing the remaining pressure in the arm cylinder
circuit, bucket cylinder circuit, and each cylinder.
30 TESTING AND ADJUSTING
RELEASE REMAINING PRESSURE FROM HYDRAULIC SYSTEM
PC500LC-10R
30-61
Summary of Contents for PC500LC-10R
Page 1: ...HYDRAULIC EXCAVATOR SEN06722 00 PC500LC 10R SERIAL NUMBERS 100001 and up...
Page 2: ......
Page 3: ...00 INDEX AND FOREWORD PC500LC 10R 00 1...
Page 76: ......
Page 77: ...01 SPECIFICATIONS PC500LC 10R 01 1...
Page 94: ......
Page 95: ...10 STRUCTURE AND FUNCTION PC500LC 10R 10 1...
Page 177: ...When balanced 10 STRUCTURE AND FUNCTION CLSS PC500LC 10R 10 83...
Page 178: ...When lever is returned to fine control state CLSS 10 STRUCTURE AND FUNCTION 10 84 PC500LC 10R...
Page 179: ...When lever is pulled at a stroke 10 STRUCTURE AND FUNCTION CLSS PC500LC 10R 10 85...
Page 180: ...When lever is in stroke end CLSS 10 STRUCTURE AND FUNCTION 10 86 PC500LC 10R...
Page 377: ...20 STANDARD VALUE TABLE PC500LC 10R 20 1...
Page 407: ...30 TESTING AND ADJUSTING PC500LC 10R 30 1...
Page 583: ...30 TESTING AND ADJUSTING METHOD FOR STARTING UP KOMTRAX TERMINAL PC500LC 10R 30 177...
Page 604: ......
Page 605: ...60 MAINTENANCE STANDARD PC500LC 10R 60 1...
Page 636: ...MAINTENANCE STANDARD OF MAIN PUMP 60 MAINTENANCE STANDARD 60 32 PC500LC 10R...
Page 638: ...MAINTENANCE STANDARD OF SWING MOTOR 60 MAINTENANCE STANDARD 60 34 PC500LC 10R...
Page 641: ...60 MAINTENANCE STANDARD MAINTENANCE STANDARD OF TRAVEL MOTOR PC500LC 10R 60 37...
Page 644: ...MAINTENANCE STANDARD OF CONTROL VALVE 60 MAINTENANCE STANDARD 60 40 PC500LC 10R...
Page 646: ...MAINTENANCE STANDARD OF CONTROL VALVE 60 MAINTENANCE STANDARD 60 42 PC500LC 10R...
Page 648: ...MAINTENANCE STANDARD OF CONTROL VALVE 60 MAINTENANCE STANDARD 60 44 PC500LC 10R...
Page 650: ...MAINTENANCE STANDARD OF CONTROL VALVE 60 MAINTENANCE STANDARD 60 46 PC500LC 10R...
Page 652: ...MAINTENANCE STANDARD OF CONTROL VALVE 60 MAINTENANCE STANDARD 60 48 PC500LC 10R...
Page 658: ...MAINTENANCE STANDARD OF TRAVEL PPC VALVE 60 MAINTENANCE STANDARD 60 54 PC500LC 10R...
Page 668: ...MAINTENANCE STANDARD OF WORK EQUIPMENT LINKAGE 60 MAINTENANCE STANDARD 60 64 PC500LC 10R...
Page 679: ...90 CIRCUIT DIAGRAMS PC500LC 10R 90 1...
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Page 704: ...Symbol Content Buzzer Antenna SYMBOLS USED IN ELECTRICAL CIRCUIT DIAGRAM 90 26 PC500LC 10R...
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