Servicing The Air Cleaner - Toro 74251 Operator's Manual

1
Figure 37
1. Sharpen at original angle
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 38). If the blade stays in a horizontal
position, the blade is balanced and can be used. If the
blade is not balanced, file some metal off of the end of
the sail area only (Fig. 36). Repeat this procedure until
the blade is balanced.
1
Figure 38
1. Blade
Installing the Blades
1. Install the blade onto the spindle shaft (Fig. 36).
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. The spring disk
cone must be installed toward the bolt head (Fig. 36).
Torque the blade bolt to 85–110 ft.-lb.
(115–150 NV m).

Servicing the Air Cleaner

Paper Element:
Clean after 50 operating hours.
Replace after 300 operating hours.
Note: Service the air cleaner more frequently (every few
hours) if operating conditions are extremely dusty or
sandy.
Removing the Paper Element
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.
m–1854
2
m–1855
2. Balancer
34
3. Unlatch the seat, tilt the seat up and tilt the engine
cover forward.
4. Clean around the air cleaner to prevent dirt from
getting into the engine and causing damage. Loosen
the retaining clips and remove the air cleaner cover
(Fig. 39).
Î Î Î Î
Î Î Î Î
3
Figure 39
1. Retaining clip
2. Air cleaner cover
5. Carefully remove the filter from the compartment
(Fig. 39).
Cleaning the Paper Elements
1. Lightly tap the element on a flat surface to remove
dust and dirt (Fig. 40).
2. Inspect the element for tears, an oily film, and damage
to the rubber seal.
Important
Never clean the paper element with
pressurized air or liquids, such as solvent, gas, or
kerosene. Replace the paper element if it is damaged or
cannot be cleaned thoroughly.
1
Figure 40
1. Paper element
1
2
M–4382
3. Air filter
2
M–4383
2. Rubber seal