Lift Relief Valve (R6) Pressure Test - Toro Reelmaster 5210 Service Manual

Lift Relief Valve (SVRV) Pressure Test
TO MOW CONTROL
(FRONT CUTTING UNITS)
TO MOW CONTROL
(REAR CUTTING UNITS)
PUMP (P5)
INTERNAL
CASE
DRAIN
FROM MOW CONTROL
MANIFOLD
R8
The lift relief valve (SVRV) pressure test should be per-
formed to make sure that the lift circuit relief pressure is
correct.
Procedure for Lift Relief Valve (SVRV) Pressure Test
1. Make sure hydraulic oil is at normal operating tem-
perature by operating the machine under load for
approximately ten (10) minutes.
2. Park machine on a level surface with the cutting units
lowered and PTO switch off. Make sure engine is off. Ap-
ply the parking brake.
3. Read Precautions For Hydraulic Testing in this sec-
tion.
Hydraulic System (Rev. C)
TO STEERING
CONTROL VALVE
P1 P3 P4
P2
100 MESH
SUCTION
STRAINER
PRESSURE
GAUGE
G4
SV1
SV2
P4
T
R7
SV3
LIFT
C2/3 L
CONTROL
MANIFOLD
LEFT
FRONT
LEFT
REAR
Figure 45
Before opening hydraulic system, operate all hy-
draulic controls to relieve system pressure and
avoid injury from pressurized hydraulic oil. See
Relieving Hydraulic System Pressure in the Gen-
eral Information section of this chapter.
4. Gain access to hydraulic lift control manifold from be-
low front of machine.
Page 4 - - 48
C4 L
CV4
C4
C1 L
C1
CV1
CV5
C5
C5 L
CV23
C2/3
RIGHT
FRONT
FRONT
CENTER
RIGHT
REAR
CAUTION
Reelmaster 5010 Series