Toro Reelmaster 3550-D Service Manual page 84

Cutting Unit Circuit Testing − Proportional Relief Valve (PRV) Pressure Test
BACKLAP
SWITCH
(SW)
TO
HYDRAULIC
TANK
Hydraulic System
REEL #4 REEL #1
TESTER
WITH
PRESSURE GAUGE
AND FLOW METER
M1 M2
MV
CV1
OR1
FC
.050"
PRV
G
3000 PSI
P
FROM
GEAR PUMP
(P1)
Page 4 − 52
REEL #5 REEL #2
MOW CONTROL MANIFOLD
OR2
.020"
LC
T
TO
OIL COOLER
Reelmaster 3550−D/3555−D/3575−D
REEL #3
1500 PSI
RV
M3
High Pressure
Low Pressure
Return or Suction
Flow