Hyundai HL955 Manual page 350

4) 4) PARKING BRAKE OPERATED PARKING BRAKE OPERATED
A
B
Parking brake switch
Return line
22
Return line
21
Main pump
When the parking brake switch is pressed B position, the solenoid valve is deenergized and the
valve open the drain port.
At the same time, the hydraulic oil in the parking brake return to the tank through the solenoid
valve. When the piston rod is returned by the force of the spring, the parking brake is applied.
16
S1 B1
15
P
PS
18
PP
23
24
25
P1
T1
P2
T2
16
17
B2
S2 S3
18
G1
Parking
B3
18
G2
Parking brake solenoid
T1 T2
26
2
B
S L
4-7
19
Front
A1
20
40
A2
Rear
T/M
41
30
D
P A A
T
B B
760F4BS05
29