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1. CONSTRUCTION
Travel device consists travel motor and gear box.
Travel motor includes counterbalance valve, parking brake and high/low speed changeover
mechanism.
GROUP 4 TRAVEL DEVICE
P1
P2
R/G
P1
P2
Ps
T1
a1
a2
HYDRAULIC CIRCUIT
T2
Oil fill port(PT 3/8)
Oil check port(PT 3/8)
Oil drain port(PT 3/8)
T1
T2
P1
P2
a1
a2
Ps
Port
P1
P2
a1,a2
T1,T2
Ps
Port name
Main port
Main port
Gauge port
Drain port
2 speed control port
Port size
PF 1/2
PF 1/2
PF 1/8
PF 3/8
9/16-18 UNF
R35Z72TM20