Precautions When Carrying Out Operation - Komatsu PC18MR-3 Shop Manual

SEN04309-00

Precautions when carrying out operation

[When carrying out removal or installation (disassembly or assembly) of units, be sure to follow the general
precautions given below when carrying out the operation.]
1. Precautions when carrying out removal work
If the coolant contains antifreeze, dispose of it correctly.
q
q After disconnecting hoses or tubes, cover them or fit plugs to prevent dirt or dust from entering.
q When draining oil, prepare a container of adequate size to catch the oil.
q Confirm the match marks showing the installation position, and make match marks in the necessary
places before removal to prevent any mistake when assembling.
q To prevent any excessive force from being applied to the wiring, always hold the connectors when dis-
connecting the connectors. Do not pull the wires.
Fit wires and hoses with tags to show their installation position to prevent any mistake when installing.
q
q Check the number and thickness of the shims, and keep in a safe place.
q When raising components, be sure to use lifting equipment of ample strength.
q 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
q
entering after removal.
a Precautions when handling piping during disassembly
Fit the following plugs into the piping after disconnecting it during disassembly operations.
1) Face seal type hoses and tubes
Nominal
number
02
03
04
05
06
10
12
2) Split flange type hoses and tubes
Nominal
number
04
05
3) If the part is not under hydraulic pressure, the following corks can be used.
Nominal
Part Number
number
06 07049-00608
08 07049-00811
10 07049-01012
12 07049-01215
14 07049-01418
16 07049-01620
18 07049-01822
20 07049-02025
22 07049-02228
24 07049-02430
27 07049-02734
26
00-200
Plug (nut end)
07376-70210
07376-70315
07376-70422
07376-70522
07376-70628
07376-71034
07376-71234
Flange (hose end)
07379-00400
07379-00500
Dimensions
D
6
8 6.5
10 8.5
12 10
14 11.5
16 13.5
18 15
20 17
22 18.5
24 20
27 22.5
Sleeve head (tube end)
07378-10400
07378-10500
d L
5 8
11
12
15
18
20
22
25
28
30
34
200 Foreword and general information
Precautions when carrying out operation
Sleeve nut (elbow end)
02789-20210
02789-20315
02789-20422
02789-20522
02789-20628
07221-21034
07221-21234
Split flange
07371-30400
07371-30500
1
PC18MR-3