Checking The Hydraulic Lines And Hoses; Hydraulic System Test Ports - Toro 30856 Operator's Manual

3. Lubricate the new filter gasket and fill the filter with
hydraulic fluid.
Figure 56
1. Hydraulic filter
Figure 57
1. Hydraulic filter
4. Ensure that the filter mounting area is clean. Screw
the filter on until the gasket contacts the mounting
plate; then tighten the filter an additional 1/2 turn.
5. Start the engine and let it run for about two minutes
to purge air from the system. Stop the engine and
check for leaks.
Checking the Hydraulic Lines
and Hoses
Service Interval: Before each use or daily
Inspect the hydraulic lines and hoses daily for
leaks, kinked lines, loose mounting supports, wear,
loose fittings, weather deterioration, and chemical
deterioration. Make all necessary repairs before
operating.
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• Make sure all hydraulic fluid hoses and
lines are in good condition and all hydraulic
connections and fittings are tight before
applying pressure to the hydraulic system.
• Keep your body and hands away from pin
hole leaks or nozzles that eject high pressure
hydraulic fluid.
• Use cardboard or paper to find hydraulic
leaks.
• Safely relieve all pressure in the hydraulic
system before performing any work on the
hydraulic system.
• Seek immediate medical attention if fluid
is injected into skin.

Hydraulic System Test Ports

The test ports are used to test the pressure in the
hydraulic circuits. Contact your local Toro distributor
for assistance or refer to the Service Manual.
Test Port A (Figure 58), located on rear of filter
manifold, under right hand frame rail. Used to measure
the traction system charge pressure.
1. Test port A (Charge)
Test Port B (Figure 59), located on side of counter
balance manifold, under operators seat. Used to measure
the counter balance pressure applied to cutting units for
increased traction.
Test Port C (Figure 59), located on front of 2 wheel
drive/4 wheel drive manifold through front access panel
on operator platform. Used to measure the 4 wheel
45
Figure 58