FOREWORD
SAFETY
00-4
b
PC200/220LL-8
12
4.
When raising heavy components, use a hoist or crane. Check that the wire rope, chains and hooks are free from damage.
Always use lifting equipment which has ample capacity. Install the lifting equipment at the correct places. Use a hoist or
crane and operate slowly to prevent the component from hitting any other part. Do not work with any part still raised by
the hoist or crane.
5.
When removing covers which are under internal pressure or under pressure from a spring, always leave two bolts in
position on opposite sides. Slowly release the pressure, then slowly loosen the bolts to remove.
6.
When removing components, be careful not to break or damage the wiring. Damaged wiring may cause electrical fires.
7.
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.
8.
Never use flammable liquids to clean parts, use only non-flammable approved cleaning solutions to clean parts.
9.
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.
10. 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.
11. 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.
12. When aligning two holes, never insert your fingers or hand. Be careful not to get your fingers caught in a hole.
13. When measuring hydraulic pressure, check that the measuring tool is correctly assembled before taking any
measurements.
14. 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.
15. Precautions for disconnecting and connecting hoses and tubes in air conditioner circuit.
A. Disconnection
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. Check that each O-ring is not damaged or deteriorated.
iv. When connecting the refrigerant piping, apply compressor oil for refrigerant (R134a) (DENSO: ND-OIL8,
ZEXEL: ZXL100PG (equivalent to PAG46)) to its O-rings.
WARNING!
Collect the air conditioner refrigerant gas (R134a).
If the refrigerant gas (R134a) gets in your eyes, you may lose your sight. Accordingly,
when collecting or adding it, you must be qualified for handling the refrigerant and put on
protective goggles.
