
288
12. RELIEVING INTERNAL PRESSURE OF HYDRAULIC
CIRCUIT
•
The pressure in the hydraulic circuit cannot be completely relieved. When removing a
hydraulic unit, stay away from the oil flow direction. Also, loosen the screw slowly.
CAUTION
Complete this procedure. After stopping the engine move the machine work ration lever
back and forth as well as leftward and rightward using its full stroke for 15 seconds.
Since the accumulator pressure gradually decreases after stopping the engine, the
pressure can only be relieved immediately after stopping it.
1. Place the machine on horizontal and solid ground
surface.
2. Turn the starter switch to "OFF" position to stop the
engine.
3. Turn the starter switch to "ON" position.
4. Set the lock lever (1) to "FREE" position (F), and
operate the machine work operation lever back and
forth as well as leftward and rightward for its full
stroke to relieve the residual pressure in the hydraulic
circuit.
5. Set the lock lever (1) to "LOCK" position (L), and lock
the machine work operation lever.
Содержание CC1485S-1
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Страница 57: ...49 SAFETY LABEL LOCATIONS OUTSIDE OF THE CABIN...
Страница 58: ...50 SAFETY LABEL LOCATIONS IN THE ENGINE ROOM...
Страница 59: ...51 1 Safe operation 557 3494500 2 Working range diagram 585 2236900...
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Страница 305: ...297 2 SPECIFICATION DIMENSIONAL DRAWING...
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