Tadano TT-800XXL1, Service Manual

Page: 97 / 267

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Winch System
Contents
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Winch system
1 . Description of the units ............................. 1
1 . 1 Hydraulic motor .......................................... 1
1 .2 Counterbalance valve................................. 1
1 .3 Hydraulic valve ........................................... 1
1 .4 Solenoid valve (telescoping/aux. hoist)...... 1
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Winch
1 . Structure................................................... 2
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Hydraulic Motor (Winch)
1 . Structure................................................... 4
2. Air bleeding procedure.............................. 6
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Counterbalance Valve (Winch)
1 . Structure................................................... 7
2. Function.................................................... 8
2. 1 Balancing and holding functions ................ 8
2.2 Overload relief function .............................. 8
3. Principle of operation ................................ 9
3. 1 When control valve is in neutral ................. 9
3.2 Hoisting up.................................................. 9
3.3 Hoisting down ............................................. 9
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Hydraulic Valve (Winch Brake Release)
1 . Structure ................................................. 1 0
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