Changing The Planetary Gearbox Fluid - Toro 41581 Operator's Manual

Changing the Hydraulic Oil
Use 12 US gallons (45.4 l) of Mobil 424 hydraulic oil or
equivalent.
Warning
Hot hydraulic fluid can cause severe burns.
Allow the hydraulic oil to cool before performing
any maintenance to the hydraulic system.
1. Replace the hydraulic oil filter; refer to Replacing the
Hydraulic Oil Filter on page 35.
2. Clean the area around one hydraulic hose fitting on the
bottom of the hydraulic oil tank (Fig. 43).
Figure 43
1. Hydraulic hose and fitting
3. Place a large pan under the fitting.
4. Remove the hose fitting from the tank, allowing the oil
to drain into the pan (Fig. 43).
5. Install the hose and fitting to the tank and tighten it
securely.
6. Fill the hydraulic reservoir with approximately
12 US gallons (45.4 l) of Mobil DTE 15M hydraulic oil
or equivalent.
7. Start the machine and run it at idle for 3 to 5 minutes to
circulate the fluid and remove any air trapped in the
system.
8. Stop the engine, check the hydraulic oil level, and check
for leaks.
9. Dispose of the used oil at a certified recycling center.
Checking the Hydraulic Lines and Hoses
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.
• Ensure that 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
1
system before performing any work on the
hydraulic system.
• Get immediate medical help if fluid is injected
into skin.
Changing the Planetary
Gearbox Fluid
Change the planetary gearbox fluid in each rear wheel after
the first 8 hours and then after every 400 hours thereafter.
Use high quality, SAE 85W-140 weight gear lube.
1. Position the sprayer on a level surface with the rear
wheels positioned for draining as illustrated in
Figure 44.
1. Drain plugs, positioned for draining
2. Set the parking brake, stop the pump, stop the engine,
and remove the ignition key.
36
Warning
1
Figure 44