Engine Maintenance; Checking The Engine Overheat Warning System; Servicing The Air Cleaner; Checking The Engine-Oil Level - Toro 02750 Operator's Manual

Engine Maintenance

Checking the Engine Overheat
Warning System
Service Interval: Every 500 hours
1
Figure 33
1. Temperature switch
1. Turn the ignition key to the ignition on position I.
2. Disconnect the black/purple wire terminal from the
engine temperature switch.
3. Touch the metal terminal of this wire onto a suitable
earth point, ensuring that the metal surfaces make
good contact.
The horn will sound and the engine coolant temperature
warning light will illuminate to confirm correct operation.
If the system is faulty, make repairs before operating the
machine.

Servicing the Air Cleaner

Service Interval: Every 200 hours (More frequently in
extremely dirty or dusty conditions)
Before each use or daily
Check the air cleaner body for damage which could cause an
air leak. Replace if damaged. Check the whole intake system
for leaks, damage or loose hose clamps.
Changing the air filter before it is necessary only increases the
chance of dirt entering the engine when the filter is removed.
Important: Be sure the cover is seated correctly and
seals with the air cleaner body.
1. Open the engine cover.
2. Release the latches securing the air cleaner cover to the
air cleaner body (Figure
G014437
34).
1. Air cleaner body
2. Air cleaner cover
3. Remove the cover from the air cleaner body. Before
removing the filter, use low pressure air (40 psi, clean
and dry) to help remove large accumulations of debris
packed between the outside of the filter and the
canister. Avoid using high pressure air which could
force dirt through the filter into the intake tract.
This cleaning process prevents debris from migrating
into the intake when the primary filter is removed.
4. Remove and replace the primary filter.
Cleaning of the used element is not recommended due
to the possibility of damage to the filter media. Inspect
the new filter for shipping damage, checking the sealing
end of the filter and the body. Do not use a damaged
element. Insert the new filter by applying pressure to
the outer rim of the element to seat it in the canister.
Do not apply pressure to the flexible center of the
filter.
5. Clean the dirt ejection port located in the removable
cover. Remove the rubber outlet valve from the cover,
clean the cavity and replace the outlet valve.
6. Install the cover orienting the rubber outlet valve in a
downward position—between approximately 5 o'clock
to 7 o'clock when viewed from the end.

Checking the Engine-Oil Level

Service Interval: Before each use or daily
Crankcase capacity is approximately 7.6 L (8 qt) with the filter.
Use high-quality engine oil that meets the following
specifications:
•
API Classification Level Required: CH-4, CI-4 or higher
•
Preferred oil: SAE 15W-40 (above 32° C (0° F))
•
Alternate oil: SAE 10W-30 or 5W-30 (all temperatures)
Toro Premium Engine oil is available from your distributor in
either 15W-40 or 10W-30 viscosity.
1. Park the machine on a level surface, stop the engine,
set the parking brake, and remove the key from the
ignition switch.
2. Release the engine cover latch and open the hood.
34
Figure 34
3. Rubber outlet valve