Maeda MC815C - Hydraulic Pump Connection Destinations; Hydraulic Pump Specifications; Pump Hydraulic Circuit Diagram

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4.3.2 HYDRAULIC PUMP CONNECTION DESTINATIONS
Port
name
Port destination Port size Note
A1
Via shuttle manifold block
Left travel control valve P1 port (upper)
G1/2 Left travel / Outrigger 1 / Outrigger 2
A2
Via shuttle manifold block
Right travel control valve P1 port (lower)
G 1/2 Right travel / Outrigger 3 / Outrigger 4
A3 Twin solenoid valve P port G 1/4 Travelling switch / Winch speed / Winch brake
S1 Hydraulic oil tank Piston pump suction port
R1 (Air venting port)
4.3.3 HYDRAULIC PUMP SPECIFICATIONS
Pump port No. A1 A2 A3
Pump type Variable capacity piston Variable capacity piston Gear
Capacity per turn cc/rev 19.0 19.0 6.5
Revolution speed
range
rpm 1,000 - 2,500
Oil temperature
range
ºC -25 - +90
Weight kg 28.5
Purpose
Left travel / Outrigger 1
Outrigger 2
Right travel / Outrigger 3
Outrigger 4
Travelling switch / Winch
speed / Winch brake
Crane control
(Derrick / Winch / Telescoping / Slew)
Service pressure
MPa
(kgf/cm
2
)
24.5 (250) 24.5 (250) 3.1 (30)
4.3.4 PUMP HYDRAULIC CIRCUIT DIAGRAM