Hyundai HL955 Manual page 349

3) 3) PARKING BRAKE RELEASED PARKING BRAKE RELEASED
A
B
Parking brake switch
Return line
22
Return line
21
Main pump
When the parking brake switch is pressed A position, the solenoid valve is energized and the
hydraulic oil controlled the pressure level by the cut-off valve enters the parking brake. It overcomes
the force of the spring and pushes the piston rod. This releases the brake.
Therefore, the hydraulic oil pressure is applied to the parking brake piston through the solenoid
valve and the parking brake is kept released.
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
4-6
19
Front
A1
20
40
A2
Rear
T/M
41
30
29
D
P A A
T
B B
760F4BS04