XCMG QAY220 Operation Manual Download Page 7

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QAY220 All Terrain Crane Operation Manual

III

4-5-2 Boom extending and retracting procedure ........................................................................... 4-13

4-5-3 Notes on operation ............................................................................................................... 4-16

4-6 Boom elevating operation .......................................................................................................... 4-17

4-6-1 Operating method (right lever) ............................................................................................ 4-17

4-6-2 Relationship among boom angle, total rated load and working radius ................................ 4-18

4-6-3 Notes on operation ............................................................................................................... 4-18

4-7 Slewing operation ...................................................................................................................... 4-19

4-7-1 Operating method (left lever) ............................................................................................... 4-19

4-7-2 Notes on operation ............................................................................................................... 4-20

4-8 Operation of tilting operator

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s cab .......................................................................................... 4-21

4-8-1 Operating method ................................................................................................................. 4-21

4-8-2 Notes on operation ............................................................................................................... 4-21

4-9 Operation of turntable locking device ...................................................................................... 4-22

4-9-1 Operating method ................................................................................................................. 4-22

4-9-2 Notes on operation ............................................................................................................... 4-22

Chapter 5 Accessories ................................................................................................................................ 5-1

5-1 Counterweight ............................................................................................................................. 5-1

5-1-1 Notes on operation.................................................................................................................. 5-1

5-1-2 Counterweight combination ................................................................................................... 5-1

5-1-3 Counterweight erection .......................................................................................................... 5-3

5-1-4 Counterweight dismantling .................................................................................................... 5-6

5-1-5 Transportation of counterweight ............................................................................................ 5-8

5-2 Jib ................................................................................................................................................. 5-9

5-2-1 Erecting and stowing jib ........................................................................................................ 5-9

5-2-2 Notes on operation ............................................................................................................... 5-15

5-3 Single top .................................................................................................................................. 5-16

5-4 Auxiliary winch ......................................................................................................................... 5-17

5-4-1 Installation of auxiliary winch ............................................................................................. 5-17

5-4-2 Pipeline connection .............................................................................................................. 5-18

5-5 Hook block ............................................................................................................................... 5-19

5- Basic type and structure ............................................................................................................ 5-19

5-5-2 Inspections ........................................................................................................................... 5-19

Contents

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