Toro Groundsmaster 4500-D Series Service Manual page 38

High Flow Hydraulic Filter Kit
K Line Part Number: TOR6011
The high flow hydraulic filter kit is designed with large flow (150
LPM or 40 GPM) and high pressure (34,500 kPa or 5,000 psi)
capabilities. This kit provides for bidirectional filtration which
prevents filtered unwanted material from entering into the circuit
regardless of the flow direction.
If a component failure occurs in the closed-loop traction circuit,
contamination from the damaged part will remain in the circuit
until you remove it. Install a high flow hydraulic-fluid filter into the
circuit when you connect the hydraulic test gauges in order to
test the traction circuit components or after you replace a failed
traction circuit component (e.g., piston pump or wheel motor). This
filter removes contamination from the hydraulic fluid in the traction
circuit, thereby preventing additional component damage.
Note: This kit does not include the hydraulic hoses; refer to
Hydraulic Hose Kit (page 2–18).
Note: The replacement filter element is K Line Part No. TOR6012.
The filter element canister tightening torque is 34 N∙m (25 ft-lb).
Measuring Container
K Line Part Number: TOR4077
Use this container to test hydraulic motor efficiency (motors
with case drain lines only). Limit the outlet flow from the motor
and measure the leakage from the case drain line to measure
the efficiency of a hydraulic motor while the hydraulic system
pressurizes the motor.
The table gives the gallons per minute (gpm) conversion for the
measured milliliter or ounce motor case drain leakage.
GPM mL/15 seconds
0.1 95
0.2 189
0.3 284
0.4 378
0.5 473
0.6 568
0.7 662
0.8 756
0.9 852
1.0 946
Specifications and Maintenance: Special Tools
oz/15 seconds
3.2
6.4
9.6
12.8
16.0
19.2
22.4
25.6
28.8
32.0
Page 2–20 Groundsmaster ® 4500-D/4700-D
19245SL Rev A