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FOREWORD
7.
When removing components, be careful not to break or damage the wiring. Damaged wiring may cause electrical fires.
8.
When removing piping, stop the fuel or oil from spilling out. If any fuel or oil drips on to the floor, wipe it up immediately.
Fuel or oil on the floor can cause you to slip, or can even start fires.
9.
Never use flammable liquids to clean parts, use only non-flammable approved cleaning solutions to clean parts.
10. Be sure to assemble all parts again in their original places. Replace any damaged part with new parts.
•
When installing hoses and wires, be sure that they will not be damaged by contact with other parts when the machine
is being operated.
11. When installing high pressure hoses, make sure that they are not twisted. Damaged tubes are dangerous, so be extremely
careful when installing tubes for high pressure circuits. Also check that connecting parts are correctly installed.
12. When assembling or installing parts, always use the specified tightening torques. When installing protective parts such as
guards, or parts which vibrate violently or rotate at high speed, be particularly careful to check that they are installed
correctly.
13. When aligning two holes, never insert your fingers or hand. Be careful not to get your fingers caught in a hole.
14. When measuring hydraulic pressure, check that the measuring tool is correctly assembled before taking any measure-
ments.
15. Take care when removing or installing the tracks of track-type machines. When removing the track, the track separates
suddenly, so never let anyone stand at either end of the track.
16. If the engine is operated for a long time in a place which is not ventilated well, you may suffer from gas poisoning.
Accordingly, open the windows and doors to ventilate well.
17. Precautions for disconnecting and connecting hoses and tubes in air conditioner circuit.
A. Disconnection
i.
Ask a qualified person for collection, and charge of the refrigerant
ii. Never release the refrigerant (R134a) to the atmosphere.
iii. When loosening the nuts fixing air conductance hoses and tubes, be sure to use two wrenches; one to fix and the
other to loosen the nut.
WARNING! Collect the air conditioner refrigerant gas (R134a).
If the refrigerant gas (R134a) gets in your eyes, you may lose your sight, and if it touches
your skin, you may suffer from frostbite. Accordingly, when collecting or adding it, you
must be qualified for handling the refrigerant and wear protective goggles, gloves and
clothing with long sleeves.
B. Connection
i.
When installing the air conditioner circuit hoses and tubes, take care that dirt, dust, water, etc. will not enter
them.
ii. When connecting the air conditioner hoses and tubes, check that O-rings (1) are fitted to their joints.
iii. Once an O-ring is used, it is deformed and deteriorated. Accordingly, do not reuse it.
iv. When removing O-rings, use a soft tool so that the piping will not be damaged.
v.
Check that each O-ring is not damaged or deteriorated.
vi. Apply compressor oil for refrigerant (R134a)
PC390LL-10
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SAFETY
00-5
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