7. ADJUSTMENT AND REPAIR
7-2-4
7-2-3 Removal and Reinstallation of Crawler
When raising the machine, support it with safety blocks of sufficient strength.
When loosening or removing the nipple valve
1
, the high internal pressure could cause grease to eject or the nipple valve
to blow. Do not bring your face close to the nipple valve
1
.
1) Removal of Rubber Crawler
Handle the rubber crawlers with great care, because they are heavy.
Rubber crawler : 59 kg each
2) Reinstallation of Rubber Crawler
Install the rubber crawler in the reverse order of the removal procedure.
Procedure
(1) Lower the bucket to the ground. Loosen the nipple valve
1
and discharge the grease from the grease cylinder to
loosen the rubber crawler tension.
Note :
Move the machine back and forth if the grease is not dis-
charged smoothly.
(2) Swing the upperstructure to position the implement on the
side of the rubber crawler to be removed, and raise the
machine slightly with the implement.
(3) Insert steel pipes between the crawler frame and the rub-
ber crawler
2
, as shown in the figure at the right, and turn
the sprocket in the reverse direction. Slide the rubber
crawler off when the rubber crawler is separated from the
idler by the steel pipes.
!
!
!
Rubber crawler
to be removed
Rotating direction
Steel pipes
Summary of Contents for ViO12-2A
Page 1: ...SERVICE MANUAL EXCAVATOR ViO12 2A...
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Page 109: ...5 3 1 5 ELECTRIC SYSTEM 5 3 Wiring Diagram...
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Page 219: ...6 HYDRAULIC SYSTEM 6 7 8 1 4 3 8 7 12 10 10 15 a b c Loctite 262 0 30Nm 0 45Nm...
Page 348: ...7 ADJUSTMENT AND REPAIR 7 5 31 6 Control Levers Pilot valves Control valve...
Page 349: ...7 ADJUSTMENT AND REPAIR 7 5 32 7 Upperstructure Implement Bucket cylinder Arm cylinder...
Page 351: ...7 ADJUSTMENT AND REPAIR 7 5 34 9 Undercarriage High speed travel solenoid valve...
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Page 360: ...CHAPTER 8 PERIODIC INSPECTION AND SERVICING 8 1 List of Periodic Inspection and Servicing 8 1...
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Page 364: ...CHAPTER 9 FUEL LUBE OIL AND GREASE RECOMMENDED 9 Fuel Lube Oil and Grease Recommended 9 1...
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Page 406: ...CHAPTER 11 REFERENCE DATA 11 1 Specifications for Attachment 11 1...
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