Service Manual

Reelmaster 5010 SeriesPage 4 - 48
Lift Relief Valve (SVRV) Pressure Test
Figure 45
T
C4
P4
C5
C1
C2/3
C2/3 L
LEFT
FRONT
RIGHT
FRONT
FRONT
CENTER
REAR
R8
C4 L
C5 L
C1 L
REAR
LEFT
RIGHT
100 MESH
SUCTION
STRAINER
INTERNAL
CASE
DRAIN
P1
P2
P3 P4
G4
SV3
SV1
SV2
R7
SVRV
CV4
CV1
CV5
CV23
PUMP (P5)
TO STEERING
TO MOW CONTROL
(REAR CUTTING UNITS)
(FRONT CUTTING UNITS)
TO MOW CONTROL
FROM MOW CONTROL
MANIFOLD
CONTROL VALVE
PRESSURE
GAUGE
LIFT
CONTROL
MANIFOLD
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. Parkmachineonalevelsurfacewiththecuttingunits
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.
CAUTION
Before opening hydraulic system, operate all hy-
draulic controls to reli eve 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.
Hydraulic System