Genie GTH-636 Service Manual page 94

Section 4 • Repair Procedures
OPERATOR'S COMPARTMENT
6 Refering to Illustration 2, locate port T of the
joystick. Tag, disconnect and plug the hose with
the straight connector from the tee fitting at port
T of the joystick. Cap the fitting.
2
3
4
LIFT UP
BOOM IN
LIFT DOWN
BOOM OUT
MAIN VALVE
ASSEMBLY
CONTROL BLOCK
TANK PORT #1
Illustration 2
4-way Controller Circuit
7 Remove the fasteners securing the steering
selector to the side console. Set the fasteners
aside.
4 - 24 GTH-636 • GTH-644 • GTH-842 • GTH-844 • GTH-1048 • GTH-1056
T
T
1
P
P
TO (T) PORT
ON FOOT BRAKE
VALVE
T
T
2
3 1
4
P
P
PARKING BRAKE
VALVE
TO FRONT AXLE
PARKING BRAKE
CIRCUIT
T3
C
TANK PORT #3
8 Carefully lift the steering selector away from the
side console assembly.
9 Tag, disconnect and plug the hoses at ports C1,
C2 and R of the steering selector. Cap the
fittings.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
Burn hazard. Contact with hot
fluids or components may cause
severe burns.
STEERING SELECTOR
TOP VIEW
CYL 1
P
R
CYL 2
R
L
T P
T2
T3 R
T1
ST
C
S PR BK
MANIFOLD
BLOCK
Illustration 3
Steer Circuit
June 2007
REV B
FRONT
STEERING
CYL.
C2
P R
C1
REAR
STEERING
CYL.
Part No. 97487