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Groundsmaster 4000--DHydraulic System (Rev. B) Page 4 -- 38
TEST NO. 8: Lift/Lower Circuit Relief Pressure (Using Pressure Gauge)
High Pressure
Low Pressure
Return or Suction
Flow
G
G
1.2
470
1.2
FRONT
DECK
LIFT
CB
A2
C2
O
I
LIFT/LOWER
CONTROLVALVE
A
B
C
D
E
F
1500
PSI
CYL3
CYL4
LHWING
DECKLIFT
C1
A1
CHG
.58
2.48
RHWING
DECKLIFT
CYL2
CYL1
PSI
RESERVOIR
FROM
FROM OIL
FILTER
RESERVOIR
TO
TRACTION
CIRCUIT
TO PTO (MOW) CIRCUIT
CHARGE
CIRCUIT
TO STEERING CIRCUIT
NOTE: LH DECK RAISE SHOWN