The gas springs are located at the engine hood (2 places on
the right and left).
In the following cases, ask your Komatsu distributor for inspection, repair, and replacement.
• The engine hood is heavy to open.
• Oil or gas is leaking from the gas spring.
METHOD FOR BLEEDING AIR FROM HYDRAULIC CIRCUIT
When starting the engine, see “METHOD FOR STARTING ENGINE (3-177)”. If necessary, see the sections for
starting the engine, and moving/steering/stopping the machine in OPERATION.
METHOD FOR BLEEDING AIR FROM PUMP
NOTICE
If the drain hose is installed first, oil will spurt out from the bleeder (1) hole.
If the pump is operated without filling the pump case with hydraulic oil, abnormal heat will be generated
and this may cause a premature damage to the pump.
1.
Loosen the air bleeders (1) (2 places) and check that oil oozes out from the air bleeder.
2.
If the oil does not ooze out, remove the drain hose (2) from
the hydraulic pump case and fill the pump case completely
with hydraulic oil through the drain port.
Oil will come out when the drain hose is removed, so se-
cure the hose fitting at a position higher than the level of
the oil in the hydraulic tank.
3.
After completing the air bleeding operation, tighten the air
bleeders (1) and install the drain hose.
METHOD FOR STARTING ENGINE
Start the engine according to “METHOD FOR STARTING ENGINE (3-177)” and run it at low idle for 10 minutes,
and then start the following work.
METHOD FOR BLEEDING AIR FROM CYLINDER
NOTICE
If the engine runs at high speed immediately after startup or a cylinder is operated to its stroke end, air
taken inside the cylinder may cause damage to the piston packing.
1.
Start the engine.
2.
Turn the fuel control dial to Low idle (MIN) position.
3.
Move each cylinder to approximately 100 mm before the stroke end, and repeat the operation 4 to 5 times.
Take care not to move the cylinder to the stroke end.
4.
Turn the fuel control dial to High idle (MAX) position.
5.
Move each cylinder to approximately 100 mm before the stroke end, and repeat the operation 4 to 5 times.
Take care not to move the cylinder to the stroke end.
6.
Turn the fuel control dial to Low idle (MIN) position.
MAINTENANCE PROCEDURE
MAINTENANCE
4-42
Содержание HB365LC-3
Страница 2: ......
Страница 25: ...LOCATION OF SAFETY LABELS 5 SAFETY SAFETY LABELS 2 5...
Страница 73: ...OPERATION Please read and make sure that you understand the SAFETY section before reading this section 3 1...
Страница 348: ......
Страница 349: ...MAINTENANCE Please read and make sure that you understand the SAFETY section before reading this section 4 1...
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Страница 437: ...SPECIFICATIONS 5 1...
Страница 441: ...HB365LC 3 SPECIFICATIONS SPECIFICATIONS 5 5...
Страница 442: ...HB365NLC 3 SPECIFICATIONS SPECIFICATIONS 5 6...
Страница 489: ...REPLACEMENT PARTS 7 1...
Страница 505: ......
Страница 506: ...HB365LC 3 HYDRAULIC EXCAVATOR Form No UENAM01292 2017 KOMATSU All Rights Reserved Printed in Belgium 02 2017...