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Data, Adjustment and Checks
Contents
Y-1 Service Data ..................................... 1
1. Amounts of oil ............................................ 1
2. Operating speed ........................................ 1
3. Hydraulic device ........................................ 1
3.1 Hydraulic motor .......................................... 1
3.2 Hydraulic cylinder ....................................... 2
4. Slewing section.......................................... 3
5. Boom section ............................................. 3
5.1 Slide plate................................................... 3
5.2 Boom bending and deformation ................. 4
5.3 Jib bending and deformation ...................... 5
5.4 Wire rope .................................................... 5
5.5 Sheave ....................................................... 6
5.6 Inspection the hook block........................... 6
6. Mass table ................................................. 7
Y-2 Adjusting Pressure
(Hydraulic Pressure) ...............8
1. Winch ....................................................... 8
2. Telescoping and elevating ....................... 10
3. Slewing .................................................... 11
4. Outrigger.................................................. 12
5. Remote control pilot pressure.................. 13
Y-3 Air Bleeding Procedure .................14
1. Starting pump .......................................... 14
1.1 Before starting the engine.........................14
1.2 Shakedown of the pump ...........................14
2. Accelerator circuit .................................... 15
3. Slewing circuit.......................................... 15
3.1 Slewing motor ...........................................15
3.2 Slewing hydraulic pilot control valve .........16
4. Winch circuit (main and aux.) .................. 16
4.1 Winch motor..............................................16
4.2 Winch counterbalance valve.....................16
4.3 Winch brake ..............................................16
5. Jib lock pin and jib mounting/
stowing (offset) cylinder ............... 17
6. Hydraulic pilot circuit................................ 18
6.1 Slewing......................................................18
6.2 Elevating ...................................................18
6.3 Telescoping ...............................................18
6.4 Winch (main and aux.) ..............................18
7. Oil cooler motor ....................................... 18
8. Air condition motor................................... 18
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