Servicing The Air Cleaner - Toro Z555 74245 Operator's Manual

Installing the Blades
1. Install the blade onto the spindle shaft (Fig. 34).
Important The curved part of the blade must be
pointing upward toward the inside of the mower to ensure
proper cutting.
2. Install the spring disk and blade bolt (Fig. 34). Torque
the blade bolt to 85–110 ft-lb (115–150 NV m).
3
5
4
1
4
Figure 34
1. Sail Area of Blade
2. Blade
3. Spring Disk

Servicing the Air Cleaner

Primary Filter: Replace after every 250 operating hours or
more often in dusty conditions.
Safety Filter: Replace after every 600 operating hours.
Note: Check the filters more frequently if operating
conditions are extremely dusty or sandy.
Removing the Filters
1. Disengage the PTO, move the motion control levers to
the neutral locked position and set the parking brake.
2. Stop 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
cleaner cover off of the air cleaner body (Fig. 35).
4. Clean the inside of the air cleaner cover with
compressed air.
5. Gently slide the primary filter out of the air cleaner
body (Fig. 35). Avoid knocking the filter into the side
of the body.
6. Remove the safety filter only if you intend to replace
it.
2
3
M–4226
4. Blade Bolt
5. Cone Towards Bolt Head
30
Important Never attempt to clean the safety filter. If
the safety filter is dirty, then the primary filter is damaged
and you should replace both filters.
7. Inspect the primary filter for damage by looking into
the filter while shining a bright light on the outside of
the filter. Holes in the filter will appear as bright spots.
If the filter is damaged discard it.
5
Figure 35
1. Latches
2. Air cleaner cover
3. Air filter body
Servicing the Primary Filter
Do not clean the primary filter. Replace it after
250 operating hours.
Servicing the Safety Filter
Replace it after 600 operating hours.
Important Never attempt to clean the safety filter. If
the safety filter is dirty, then the primary filter is damaged
and you should replace both filters.
Installing the Filters
Important
To prevent engine damage, always operate
the engine with both air filters and cover installed.
1. If installing new filters, check each filter for shipping
damage. Do not use a damaged filter.
2. If the safety filter is being replaced, carefully slide it
into the filter body (Fig. 35).
3. Carefully slide the primary filter over the safety filter
(Fig. 35). Ensure that it is fully seated by pushing on
the outer rim of the filter while installing it.
Important Do not press on the soft inside area of the
filter.
3
4
1
2
1
m–7299
4. Primary filter
5. Safety filter