Tadano GR-300EX-3, Service Manual

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Data, Adjustment and Checks
Contents
Y-1 Service Data ..................................... 1
1. Amounts of oil and coolant ........................ 1
2. Operating speed ....................................... 1
3. Hydraulic device ....................................... 2
3.1 Hydraulic pump .......................................... 2
3.2 Hydraulic motor .......................................... 2
3.3 Hydraulic cylinder ....................................... 3
4. Slewing section ......................................... 5
5. Boom section ............................................ 5
5.1 Slide plate ................................................... 5
5.2 Boom bending and deformation ................. 6
5.3 Jib bending and deformation ...................... 7
5.4 Wire rope .................................................... 7
5.5 Sheave ....................................................... 8
5.6 Inspection of the hook block ....................... 8
6. Criteria for maintenance
and replacement of vehicle ............ 9
6.1 Power transmission device ......................... 9
6.2 Braking device ............................................ 9
6.3 Steering device ......................................... 10
7. Mass table ............................................... 11
Y-2 Adjusting Pressure
(Hydraulic Pressure) ............. 12
1. Location (position of relief valve etc.) ...... 12
2. Items .................................................... 13
2.1 Winch ........................................................ 13
2.2 Telescoping ............................................... 15
2.3 Elevating ................................................... 16
2.4 Steering ..................................................... 17
2.5 Slewing...................................................... 18
2.6 Outrigger ................................................... 19
2.7 Lower pilot pressure .................................. 20
2.8 Remote control pilot pressure ................... 21
2.9 Torque converter oil pressure ................... 22
Y-3 Adjusting Pressure
(Pneumatic Pressure) ............ 23
Y-4 Air Bleeding Procedure ................. 24
1. Hydraulic pump ....................................... 24
1.1 Steering and winch brake
pilot pressure pump
(double gear pump) ............................ 24
1.2 Main pump ................................................ 24
1.3 Main pump
(when the tank pressurization tool
is used) ............................................... 25
1.4 Tank pressurization tool ............................ 25
1.5 Other (cylinder) ......................................... 25
2. Winch brake ............................................ 26
3. Service brake .......................................... 26
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