Komatsu PC09-1, Руководство по ремонту

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30-4
PC09-1
DISASSEMBLY AND ASSEMBLY PRECAUTIONS WHEN CARRYING OUT OPERATION
PRECAUTIONS WHEN CARRYING OUT OPERATION
[When carrying out removal or installation (disassembly or assembly) of units, be sure to follow the general pre-
cautions given below when carrying out the operation.]
1.
Precautions when carrying out removal work
• If the coolant contains antifreeze, dispose of it correctly.
• After disconnecting hoses or tubes, cover them or fit blind plugs to prevent dirt or dust from entering.
• When draining oil, prepare a container of adequate size to catch the oil.
• Confirm the match marks showing the installation position, and make match marks in the necessary places
before removal to prevent any mistake when assembling.
• To prevent any excessive force from being applied to the wiring, always hold the connectors when discon-
necting the connectors. Do not pull the wires.
• Fit wires and hoses with tags to show their installation position to prevent any mistake when installing.
• Check the number and thickness of the shims, and keep in a safe place.
• When raising components, be sure to use lifting equipment of ample strength.
• When using forcing screws to remove any components, tighten the forcing screws uniformly in turn.
• Before removing any unit, clean the surrounding area and fit a cover to prevent any dust or dirt from enter-
ing after removal.
★
Precautions when handling piping during disassembly
Fit the following blind plugs into the piping after disconnecting it during disassembly operations.
1) Face seal type hoses and tubes
2) Split flange type hoses and tubes
3) If the part is not under hydraulic pressure, the following corks can be used.
Nominal
number
Plug (nut end) Nut (elbow end)
02 07376-70210 02789-00210
03 07376-70315 02789-00315
04 07376-70422 02789-00422
05 07376-70522 02789-00522
06 07376-70628 02789-00628
Nominal
number
Flange (hose end) Sleeve head (tube end) Split flange
04 07379-00400 07378-10400 07371-30400
05 07379-00500 07378-10500 07371-30500
Nominal
number
Part Number
Dimensions
D d L
06 07049-00608 6 5 8
08 07049-00811 8 6.5 11
10 07049-01012 10 8.5 12
12 07049-01215 12 10 15
14 07049-01418 14 11.5 18
16 07049-01620 16 13.5 20
18 07049-01822 18 15 22
20 07049-02025 20 17 25
22 07049-02228 22 18.5 28
24 07049-02430 24 20 30
27 07049-02734 27 22.5 34
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