Service Manual

Groundsmaster 4500 --D/4700--DHydraulic System Page 4 -- 30
Engine Cooling Fan Circuit (GM 4500--D Normal Fan Direction Shown)
Working Pressure
Low Pressure (Charge)
Return or Suction
Flow
Groundsmaster 4500--D/4700--D
0.630” ROD
1050
1600 PSI
6.2 GPM
11.4 GP M
3500
PSI
3500
PSI
1500
PSI
1500
PSI
P1 P2
T1
G1
PRV1
PRV2
LC1
LC2
M1 M2 M3 M4
T
RV09
PRV
S1
CV
FD
P2P1
ST
L
M1 M2
PET
R
P
CHG
G1
C2
TS
RV
S5
T2
FRONT
LEFT
FRONT
RIGHT
REAR
LEFT
50/50 FLOW
DIVIDER
FAN CONTROL
MANIFOLD
RV8
G2
MANIFOLD
4350 PSI
30.5 GPM
1.83 CID /
0.89 CID
PR
450 PSI
RV
550 PSI
.050
CV
T
P2
M8
CH
OR1
250 PSI
5000 PSI
EU -- 2600 / 1200 RPM
2.32 CID /
1.13 CID
200 PSI
.030
OR8
4PSI
1.83 CID /
0.89 CID
6.2 GPM
11.4 GP M
1.16
CID
1.16
CID
1.16
CID
1.16
CID
1.16
CID
.080
.030.030 .055
G2
G4
G3
G2
G1
3.1 GPM
3.1 GPM
CV
S6
0.56
CID
0.56
CID
1.03
CID
1.03
CID
2.75
CID
STEERING
CYLINDER
REAR
RIGHT
FRONT
CENTER
50
PSI
6.1
CIR
REAR TRACTION
CONTROL
ENGINE
T4 -- 2700 / 1200 RPM
JUNCTION
MANIFOLD
50
PSI
L
4.20” STROKE 2.00” BORE
LIFT CONTROL
MANIFOLD
REAR AXLE MOTOR
PISTON
PUMP
DECK CONTROL
MANIFOLD
#1
#2
#3 #4
#5
PSI
LIFT
CYLINDERS
0.630” ROD
1.500” BORE
3.50” STROKE
0.630” ROD
1.500” BORE
7.00” STROKE
0.630” ROD
1.500” BORE
4.00” STROKE
0.630” ROD
1.500” BORE
7.00” STROKE
3
2
1
CONTROL MANIFOLD
HI/LOW RANGE
CONTROL
VALVE
STEERING