Toro 74991 Z Master Professional 5000 Series, Operator'S Manual

Page: 37 / 76

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 300 hours/Yearly (whichever comes
first)—Replace the primary air filter (more often in
dusty or sandy conditions).
Every 300 hours—Check the inner air filter.
Every 600 hours—Replace the inner air filter.
Note:
Check the filters more frequently if the operating
conditions are extremely dusty or sandy.
Removing the Filters
1. Disengage the blade-control switch (PTO), move the
motion-control levers to the N
EUTRAL
-
LOCK
position,
and set the parking brake.
2. Shut off the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Release the latches on the air cleaner and pull the
air-inlet cover off the air-cleaner body (
Figure 49 ).
4. Clean the air-inlet screen and cover.
5. Install the air-inlet cover and secure it with the latches
(
Figure 49 ).
g030481
1
2
3
4
5
6
7
Figure 49
1. Cover 5. Air-inlet screen
2. Primary filter 6. Cover
3. Inner filter 7. Latch
4. Air-cleaner body
6. Release the latches on the air cleaner and pull the
air-cleaner cover off the air-cleaner body (
Figure 49 ).
7. Clean the inside of the air-cleaner cover with
compressed air.
8. Gently slide the primary filter out of the air-cleaner
body (
Figure 49 ).
Note:
Avoid knocking the filter into the side of the
body.
9. Remove the inner filter only if you intend to replace it.
Important:
Never attempt to clean the inner filter.
If the safety filter is dirty, then the primary filter is
damaged; replace both filters.
10. Inspect the primary filter for damage by looking into
the filter while shining a bright light on the outside of
the filter.
Note:
Any holes in the filter appear as bright spots.
If the filter is damaged, discard it.
Servicing the Primary Filter
• If the primary filter is dirty, bent, or damaged, replace it.
•
Do not clean the primary filter.
Servicing the Safety Filter
Replace the safety filter, never clean it.
Important:
Never attempt to clean the safety filter.
If the safety filter is dirty, then the primary filter is
damaged. Replace both filters.
Installing the Filters
Important:
To prevent engine damage, always operate
the engine with both air filters and the cover installed.
1. If you are installing new filters, check each filter for
shipping damage.
Note:
Do not use a damaged filter.
2. If you are replacing the inner filter, carefully slide it into
the filter body (
Figure 49 ).
3. Carefully slide the primary filter over the inner filter
(
Figure 49 ).
Note:
Ensure that the primary filter is fully seated by
pushing on its outer rim while installing it.
Important:
Do not press on the soft inside area
of the filter.
4. Install the air-cleaner cover and secure the latches
(
Figure 49 ).
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