Replacing The Hydraulic System Breather; Checking The Hydraulic Lines And Hoses; Hydraulic System Test Ports - Toro 03706 Operator's Manual

1
Figure 44
3. Lubricate the new filter gasket and fill the new filter
with hydraulic oil.
4. Ensure that the filter mounting area is clean. Screw
the filter on until the gasket contacts the mounting
plate, then tighten the filter one-half turn.
5. Start the engine and let it run slowly for about two
minutes to purge air from the system. Stop the
engine and check for leaks.
6. Look into sight glass (Figure 43). The hydraulic oil
level should be even with arrows when oil is warm.
If level is low, add hydraulic oil to the reservoir.
Replacing the Hydraulic
System Breather
Service Interval: Every 800 hours/Yearly (whichever
comes first) (More often in extremely
dusty or dirty conditions)
1. Release the latches and open the engine cover.
2. Clean around the breather and unscrew it with a
wrench (Figure 45).
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Figure 45
1. Breather
3. Install a new breather.
4. Close the engine cover and latch it securely.
Checking the Hydraulic Lines
and Hoses
Daily, check hydraulic lines and hoses for leaks, kinked
lines, loose mounting supports, wear, loose fittings,
weather deterioration, and chemical deterioration. Make
all necessary repairs before operating.
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
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• 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.
• Get immediate medical help if fluid is injected
into skin.

Hydraulic System Test Ports

The test ports (Figure 46 and Figure 47) are used to test
the hydraulic circuits. Check all pressures when engine
is at full speed and hydraulic oil is at normal operating
temperature. Contact your local Toro distributor for
assistance.
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1. Traction forward
37
1
2
Figure 46
2. Traction reverse
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