GROUP 3 SWING DEVICE
1. STRUCTURE
Swing device consists swing motor and swing reduction gear.
SWING MOTOR
1)
Swing motor include mechanical parking valve, relief valve, make up valve and time delay valve.
B Mu A
PB
GB
B
HYDRAULIC CIRCUIT
Name plate
PB
Relief valve
Check valve
DB
Mu
A
GA
PB
A
Mu
GA
GB
DB
B
Port
Port name
A
Main port
B
Main port
DB
Drain port
Mu
Make up port
PB
Brake release port
GA,GB
Gage port
2-38
Output shaft
R35Z72SM01
Port size
PF 3/8
PF 3/8
PF 3/8
PF 3/8
PF 1/4
PF 1/8