Toro ProLine H800 Service Manual page 101

ProLine H800
19241SL Rev A
Use 2 people to perform all the tests, with 1 person in the seat and
the other to read and record the test results.
1. Use the following resources to assist with hydraulic system troubleshooting:
• The Hydraulic Schematic in
• Hydraulic Flow Diagrams (page
• General and system specific troubleshooting tables in Chapter 3:
Troubleshooting.
2. Clean the machine fully before you disconnect or disassemble any hydraulic
components.
3. When you perform tests on the hydraulic system, wear eye protection.
4. Before you perform any test, inspect the traction control lever linkages for
improper adjustment, binding, or broken parts.
5. Perform all the hydraulic tests with the fluid at normal operating temperature.
6. Install clean metal caps or plugs on the hydraulic lines that are left open or
exposed during the testing or component removal.
7. The engine must be in good operating condition. Use a non-contact
tachometer (phototach) to verify and monitor engine RPM when performing a
hydraulic test. Engine speed can affect the accuracy of the test readings.
Use the information below when performing hydraulic system tests. If engine
RPM is above or below the specified speed during a test, you will need to
adjust the expected hydraulic performance parameters.
8. When you use a hydraulic tester (pressure and flow), ensure that the inlet and
outlet hoses are properly connected and not reversed to prevent damaging
the hydraulic tester or components.
9. Install the hydraulic fittings by hand and ensure that they are not
cross-threaded before you tighten them with a wrench.
10. Position any test hoses away from parts that may move during the test
procedure.
11. After you connect the test equipment, check the hydraulic fluid level in the
hydraulic tank and ensure that the fluid level is correct.
12. When you use a hydraulic tester (pressure and flow), open the tester load
valve fully before you start the engine to reduce the possibility of damaging
the components.
13. Record the results of all hydraulic tests performed.
14. After a hydraulic test procedure has been completed, check the hydraulic
fluid level in the hydraulic tank before returning the machine to service.
IMPORTANT
Appendix A (page
5–14).
Page 5–33 Hydraulic System: Testing the Hydraulic System
A–1).