Tadano GR-700N, Service Manual

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Y-1 Y-1
Service Data
2
WY01-2692E
3. Hydraulic device
3.1 Hydraulic pump
Item Standard value Remarks
Crane pump
(double piston pump)
Speed reducing ratio 0.642
Idling (min
-1
) 1090 ± 31 Eng.700 ± 20 min
-1
(PTO-ON)
Max. (min
-1
)
2414
+78
0
Eng.1550
+50
0
min
-1
(PTO-ON)
Displacement (cm
3
/rev) 82 + 82
Steering pump
(double gear pump)
Speed reducing ratio 0.815
Idling (min
-1
) 859 ± 25 Eng.700 ± 20 min
-1
Max. (min
-1
) 2785 ± 61 Eng.2270 ± 50 min
-1
Displacement (cm
3
/rev) 52.2 + 13.9
Torque converter
pump
Speed reducing ratio 0.605
Idling (min
-1
) 1157 ± 33 Eng.700 ± 20 min
-1
Max. (min
-1
) 3752 ± 83 Eng.2270 ± 50 min
-1
Displacement (cm
3
/rev) 23.7
Emergency steering
pump
Displacement (cm
3
/rev) 14.56
3.2 Hydraulic motor
(1 L/min = 2.64172 × 10
-1
gal/min)
Item Standard value Remarks
Winch
(main, auxiliary)
Displacement (cm
3
/rev) 127 to 195
Variable displacement pump with
auto-brakes
Drain (when running) Maximum drain: 6.5 L/min For reference
Slewing
Displacement (cm
3
/rev) 169.4
Drain (when running) Maximum drain: 20 L/min For reference
△
0
345-808-13000
△
2
366-535-20000
△
0
366-548-60000
△
0
363-706-70000
△
0
366-545-30001
△
0
366-635-70000
△
0
366-635-80000
△
0
366-635-90000