Engine Maintenance; Servicing The Air Cleaner - Toro 74310 Operator's Manual

1. Stop the engine, wait for all moving parts to stop,
remove the key, and engage the parking brake.
2. Unhook the seat latch and tilt the seat up.
3. Lubricate each end of both steering linkage rods with a
spray lubricant or a light oil.
Change the Gearbox Oil
Service Interval: After the first 50 hours—Change oil in
all three gearbox housings. Add oil as
needed until level with oil drain plug.
Every 100 hours—Change oil in all three gearbox
housings. Add oil as needed until level with oil drain
plug. thereafter
1. Place the machine on a level surface.
2. Stop the engine, wait for all moving parts to stop,
remove the key, and engage the parking brake.
3. Remove the gearbox and drive shaft assembly from the
mower deck. Retain the hardware for use later.
4. Remove the large oil drain plug on the front of each of
the three gearbox sections and drain the oil (Figure 30).
Figure 30
1. Small magnetic plugs
(front and back)
2. Large oil drain/fill plug
5. Remove the small magnetic plugs and wipe away any
material accumulated on the plugs.
®
6. Apply a Teflon pipe sealant to all small magnetic plugs
and install them into the gearbox.
7. Install the gearbox and drive shaft assembly to the
mower deck.
8. Fill the gearbox with Mobil
gear lube oil until level with oil drain/fill plug.
Note: Each of the gearbox sections must be filled
separately.
Note: Keep the mower deck level to the ground when
filling the gearbox with oil. Do not fill thr gearbox with
the mower deck raised in the service position.
9. Apply a Teflon pipe sealant to the 3 large oil plugs and
install them into the gearbox.
3. Small magnetic plug (front
only)
®
SHC (synthetic) 75W-90

Engine Maintenance

WARNING
Contact with hot surfaces may cause personal
injury.
Keep hands, feet, face, clothing, and other body
parts away the muffler and other hot surfaces.

Servicing the Air Cleaner

Service Interval: Every 150 hours
Every 250 hours/Yearly (whichever comes
first)—Replace the primary air filter and check
the safety air filter (more often in dusty or sandy
conditions).
Every 500 hours—Replace the safety air filter.
Note: Check the filters more frequently if the operating
conditions are extremely dusty or sandy.
Removing the Filters
1. Move the speed control lever to the neutral position
to stop the machine.
2. Disengage the PTO, engage the parking brake, stop the
engine, and wait for all moving parts to stop.
3. Release the latches on the air cleaner and pull the
air-cleaner cover off the air-cleaner body (Figure 31).
4. Clean the inside of the air-cleaner cover with
compressed air.
5. Gently slide the primary filter out of the air-cleaner
body (Figure 31).
Note: Avoid knocking the filter into the side of the
body.
1. Air-cleaner body
2. Primary filter
3. Latch
29
Figure 31
4. Air-cleaner cover
5. Safety filter