Toro Groundsmaster 4500-D Service Manual page 73

40 GPM Hydraulic Tester (Pressure and Flow)
Use to test hydraulic circuits and components for flow
and pressure capacities as recommended in the Testing
section of this chapter. This tester includes the following:
1. LOAD VALVE: A simulated working load is created
in the circuit by turning the valve to restrict flow.
2. PRESSURE GAUGE: Glycerine filled 0 to 5000 PSI
gauge to provide operating circuit pressure.
3. FLOW METER: This meter measures actual oil flow
in the operating circuit with a gauge rated from 4 to 40
GPM (20 to 150 LPM).
Toro Part Number: AT40002
NOTE: This tester does not include hoses (see Hydrau-
lic Hose Kit TOR6007 below).
Traction Circuit Hydraulic Diagnostic Fittings
To measure traction charge pressure, reverse traction
circuit reducing valve pressure or rear traction circuit re-
lief valve pressure, a diagnostic fitting is required. To
measure reverse traction relief pressure, two (2) fittings
and a diagnostic test fitting are needed. The fittings can
be temporarily installed into the appropriate component
port to allow pressures to be measured. Refer to the
Testing section of this chapter for necessary test pro-
cedures when using these diagnostic fittings.
Toro Part Number (traction charge, reverse traction cir-
cuit reducing valve or rear traction circuit relief valve):
Diagnostic Fitting 59- -7410
Toro Part Numbers (reverse traction relief pressure):
Straight Fitting 340- -2
o
90 Fitting 340- -159
Diagnostic Fitting 86- -5480
Hydraulic Hose Kit
This kit includes fittings and hoses needed to connect 40
GPM hydraulic tester (AT40002) or high flow hydraulic
filter kit (TOR6011) to machine hydraulic traction system
components.
Toro Part Number: TOR6007
Groundsmaster 4500--D/4700--D
1
1. Diagnostic fitting
2. Straight fitting
Page 4 - - 33
Figure 27
2
3
Figure 28
o
3. 90 fitting
4. Diagnostic fitting
Figure 29
Hydraulic System
4