Toro TX525 - Loader Circuit Flow Testing

HYDRAULIC TESTING
9-8 Rev. 000 TX525 Service Manual
This test determines the ow output of the gear pump.
The components involved in this test are: hydraulic
line and pump. If the gear pump ow test meets speci-
cations, then the loader valve or hydraulic line may be
at fault.
1. Cycle the hydraulic oil until warm.
2. Park the unit on level ground.
3. Set the park brake.
4. Cycle the loader valve to relieve any pressure from
the circuit.
Note: Onehydraulicttingadaptorneedstobe
purchased at a local hydraulic supplier.
(Parker part number 8HLO = 13/16-16 ORFS x
13/16-16 ORFS)
5. Remove the rear access panel.
6. Place absorbent towels(s) below hydraulic pump.
7. Using a 15/16” wrench, disconnect the hydraulic
hose from the pump tting (Fig. 1852).
Fig 1852 PICT-3403
9. Thread the adaptor tting to the other ow meter
hydraulic hose. Tighten using a 15/16” wrench
on the lfow meter hose and a 7/8” wrench on the
adaptor tting (Fig. 1854).
Fig 1854 PICT-3405
8. Thread a ow meter hydraulic hose to the hydraulic
pump tting and tighten with a 15/16” wrench (Fig.
1853).
Fig 1853 PICT-3404
Loader Circuit Flow Testing