Tadano GR-700N, Service Manual

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Y-4 Air Bleeding Procedure ................. 25
1. Hydraulic pump ....................................... 25
1.1 Steering and ACC charging pump
(double gear pump) ............................ 25
1.2 Main pump ................................................ 25
1.3 Main pump (when the tank pressurization
tool is used) ........................................ 26
1.4 Tank pressurization tool ........................... 26
1.5 Other (cylinder) ......................................... 26
2. Winch brake ............................................ 27
3. Service brake .......................................... 28
4. Hydraulic motor assy .............................. 29
4.1 Slewing motor ........................................... 29
4.2 Winch motor ............................................. 29
4.3 Other motor .............................................. 29
5. Winch counterbalance valve
(main and auxiliary) ..................... 30
6. Jib tilt cylinder ......................................... 30
7. Pilot circuit
(hydraulic pilot control valve) ....... 31
8. Positive control circuit ............................. 32
9. Slewing control valve
(back-pressure valve) .................. 32
10. Hydraulic valve (winch brake) ................. 33
Y-5 Adjusting Procedure (Electric) ...... 34
1. Switch adjustment procedure .................. 34
1.1 Over-front detection switch (CN521) ........ 34
1.2 Boom full retraction detection switch
(CN552) .............................................. 34
1.3 Jib lock pin detection switch (CN573) ....... 35
1.4 Jib connection pin detection switch
(CN572) .............................................. 35
1.5 Jib full retraction detection switch
(CN554) .............................................. 36
1.6 Main wire rope length detection
(Phase A: CN525)
(Phase B: CN526) ............................... 37
1.7 Aux. wire rope length detection
(Phase A: CN527)
(Phase B: CN528) ............................... 37
1.8 Straight ahead detection switch
(CN408) .............................................. 38
1.9 Rear steering lock pin IN detection
switch (CN417) ................................... 38
1.10 Rear steering lock pin OUT detection
switch (CN418) ................................... 38
1.11 Vehicle height detection ............................ 39
1.11.1 Assembly adjustment .......................... 39
1.11.2 Switch adjustment
(front left: CN400, CN401)
(rear left: CN404, CN405) ................... 42
1.11.3 Switch adjustment
(front right: CN402, CN403)
(rear right: CN406, CN407) ................. 43
Y-6 Assembly Adjustment
(Crane Operation) .................. 44
1. Adjusting boom telescoping wire ropes ... 44
1.1 Adjusting boom telescoping wire ropes .... 44
1.2 Adjusting boom head lower slide plate ..... 46
1.3 Adjusting wire rope
for 5th boom section extension ........... 47