Toro ProCore 648 Service Manual page 58

Coring Head Raise/Lower Relief (R1) Pressure Test (Using Pressure Gauge)
PRESSURE
GAUGE
G1
Hydraulic System
(ENERGIZED)
R1
PV
P CHG G2 T
FORWARD
P1
P2
Page 4 - - 20
ORF1
SVR
SVQ
(ENERGIZED)
R2
'B' PORT
(BOTTOM)
'P' PORT
'A' PORT
(TOP)
Figure 15
Rev. C
CYL
SVL
(NOT
ENERGIZED)
CONTROL
MANIFOLD
FRONT
WHEEL
M1
'P' PORT
'P' PORT
M2
Working Pressure
Low Pressure (Charge)
Return or Suction
Flow Direction
LIFT
CYLINDER
M3
ProCore 648