Traction Circuit Relief Valve (R3) And (R4) Pressure Test - Toro Reelmaster 5010- H Service Manual

Traction Circuit Relief Valve (R3) and (R4) Pressure Test

INTERNAL
CASE
DRAIN
P3
The traction circuit relief pressure test should be per-
formed to make sure that forward and reverse traction
circuit relief pressures are correct.
Procedure for Traction Circuit Relief Valve (R3) and
(R4) Pressure Test
1. Drive machine to an open area. Park machine on a
level surface with the cutting units lowered and disen-
gaged. Make sure engine is off. Apply the parking brake.
2. Read Precautions For Hydraulic Testing at the be-
ginning of this section.
Hydraulic System
TO STEERING CONTROL VALVE AND CHARGE CIRCUIT TO STEERING CONTROL VALVE AND CHARGE CIRCUIT
TO LIFT CONTROL MANIFOLD TO LIFT CONTROL MANIFOLD
P1
P2
100 MESH
SUCTION
STRAINER
R3
R4
R5
R9
FROM STEERING CONTROL VALVE
A
FORWARD
B
Figure 26
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.
Page 4 - 32
FORWARD (R3) RELIEF
VALVE TEST SHOWN
PRESSURE
GAUGE
G5
A
A
TRACTION
M7
WHEEL M6
LH
MOTORS
B
B
G6
CAUTION
Reelmaster 5010- H
RH