Full Product Manual

21
PRODUCT CARE
3. Remove the two star knobs (c) securing the rear panel (d) to the mower.
IMPORTANT: DO NOT open the bypass valves more than a maximum of two turns.
4. Locate the hydrostatic transmissions and open the two bypass valves (e) a
maximum of two turns.
5. Using the two star knobs , reinstall the rear panel.
6. Using the two star knobs, reinstall the leg pad.
7. Reverse STEPS 1-7 to close the two bypass valves.
(e)
(a)
(b)
(d)
(a)
(c)
Figure 21
Hydrostatic Transmission Oil
WARNING
If the mower has been recently run, the engine, muffler and surrounding
metal surfaces will be hot and can cause burns to the skin. Let the engine
cool for at least five minutes. Exercise caution to avoid burns.
NOTE: This procedure contains the following instructions for checking , changing and
adding hydrostatic transmission oil:
• Checking The Hydrostatic Transmission Oil Level
• Changing The Hydrostatic Transmission Oil
• Adding Hydrostatic Transmission Oil
• Purging Air From The Hydrostatic Transmission
CHECKING THE HYDROSTATIC TRANSMISSION OIL LEVEL
1. Locate the hydrostatic transmission oil reservoir (a) behind the engine under
the control panel.
2. Ensure the hydrostatic transmission oil reservoir level is just above the upper
reservoir mounting bolts (b) as shown in Figure 22.
NOTE: The hydrostatic transmission oil level must always stay above the hose fittings
on the rear of the tank, otherwise air may be introduced into the system.
3. If necessary, add hydrostatic transmission oil. Refer to Adding Hydrostatic
Transmission Oil in this procedure.
(a)
Hydrostatic Transmission
Oil Fill Level
(b)
Figure 22
CHANGING THE HYDROSTATIC TRANSMISSION OIL/OIL FILTER
WARNING
If the mower has been recently run, the engine, muffler and surrounding
metal surfaces will be hot and can cause burns to the skin. Let the engine
cool for at least five minutes. Exercise caution to avoid burns.
NOTE: Use care when changing the hydrostatic transmission oil and oil filter. Do not
allow oil to drip onto the hydrostatic transmission oil pumps.
1. Place a suitable container on the left side of the mower deck as close as possible
to the oil filter.
2. Loosen the hose clamp (a) securing the transmission oil hose (b) to the
transmission oil filter assembly (c). See Figure 23.
3. Positioning a funnel under the transmission oil filter assembly so that the
funnel will empty into the container positioned in STEP 1.
4. Disconnect the transmission oil hose from the transmission oil filter assembly
and allow the hydrostatic transmission oil to drain into funnel.
5. If necessary, perform the following to replace the oil filter:
a. Remove the existing oil filter (d) from the transmission oil filter assembly
(c).
b. Apply a light amount of oil to the filter gasket.
c. Install the new oil filter and tighten 3/4 to 1 turn after gasket contacts
transmission oil filter assembly base.
6. Reconnect the transmission oil hose to the transmission oil filter assembly and
secure hose using the hose clamp loosened in STEP 2.
7. Tighten the hose clamp (a) securing the transmission oil hose (b) to the
transmission oil filter assembly (c).