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Komatsu WA200-7 Shop Manual page 45

Wheel loader

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Precautions when performing operation
When performing "testing and adjusting" of the machine, "removal and installation" and "disassembly and
q
assembly" of the components, observe the following general cautions.
Precautions for removal and disassembly work
If the cooling water contains coolant, dispose of it correctly as chemicals. Do not drain it to the sewage
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rashly.
After disconnecting the hoses or tubes, plug them to prevent dirt or dust from entering.
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When draining oil, prepare a container with sufficient capacity.
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Check the match marks which indicate the installing position, and put match marks on the places where
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they seem necessary before removal of the components to prevent any mistake when assembling.
To prevent any excessive force from being applied to the wiring, always hold the connectors when discon-
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necting the connectors. Do not pull the wires.
Attach the tags to wires and hoses to show their installing positions to prevent any mistake when installing.
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Check the number and thickness of the shims, and keep them in a safe place.
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When hoisting the components, prepare the slings with sufficient strength.
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When using forcing screws to remove any component, tighten the forcing screws uniformly and alternately.
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Before removing any component, clean the surrounding area and cover the component to prevent any for-
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eign material from entering after removal.
After disconnecting the piping or removing a pipe joint, install the following plugs.
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a The O-rings in the table are emergency parts used for disassembly or transportation of the machine.
When assembling, confirm the part numbers in the parts book and use the parts conforming to the us-
ing condition.
Disconnection of face seal type hoses and tubes
Hose side
Nominal No.
02
07376 - 70210
03
07376 - 70315
04
07376 - 70422
05
07376 - 70522
06
07376-70628
WA200-7
Plug (1)
Precautions when performing operation
Pipe joint side
Nut (2)
02789-00210
02789-00315
02789-00422
02789-00522
02789-00628
00 Index and foreword
(Rev. 2012/11)
O-ring (3)
02896-11008
02896-11009
02896-11012
02896-11015
02896-11018
00-43

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