Engine Maintenance; Engine Safety; Checking The Engine Overheat Warning System; Servicing The Air Cleaner - Toro T4240 Operator's Manual

Engine Maintenance

Engine Safety

•
Shut off the engine before checking the oil or
adding oil to the crankcase.
•
Do not change the governor speed or overspeed
the engine.
Checking the Engine
Overheat Warning System
Service Interval: Every 500 hours
Figure 34
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
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.
g014437
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.
33
(Figure 35).
Figure 35
3. Rubber outlet valve
g029366