Greasing And Lubrication - Toro 78292 Operator's Manual

Removing the Blades for a 52 Inch Mower
1. Remove the mower; refer to Removing the Mower,
page 12.
2. Carefully tip the mower over.
3. Remove the bolt, blade stiffener and blade (Fig. 28). A
block of wood may be wedged between the blade and
the mower to lock the blade when you are removing the
bolt.
4. Inspect all parts. If a defect or damage is noticed, install
new parts.
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Figure 28
1. Blade
2. Blade stiffener
Sharpening the Blades
1. Use a file to sharpen the cutting edge at both ends of the
blade (Fig. 29). Maintain the original angle. The blade
retains its balance if the same amount of material is
removed from both cutting edges.
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Figure 29
1. Sharpen at original
angle
2. Check the balance of the blade by putting it on a blade
balancer (Fig. 30). If the blade stays in a horizontal
position, the blade is balanced and can be used. If the
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2
3
m-2376
3. Bolt
4. Spindle
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blade is not balanced, file some metal off the back side
of the blade. Repeat this procedure until the blade is
balanced.
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Figure 30
1. Blade
Installing the Blade(s)
1. Install the washer, blade, flat washer, and the blade nut
(Fig. 26).
Important
The curved part of the blade must be
pointing toward the inside of the mower to assure proper
cutting.
2. Tighten the blade nut to 80–100 ft–lb (109–136 N m).

Greasing and Lubrication

Service Interval/Specification
Grease the mower after every 25 operating hours or once a
year, whichever occurs first. Grease more frequently when
operating conditions are extremely dusty or sandy.
Grease Type: General-purpose grease.
How to Grease
1. Disengage the power take off (PTO), set the parking
brake, and turn the ignition key to off. Remove the key
2. Clean the grease fittings with a rag. Make sure to scrape
any paint off the end of the fitting(s).
3. Connect a grease gun to the fitting. Pump grease into
the fittings.
4. Wipe up any excess grease.
Where to Add Grease
1. Lubricate the blade spindles (Fig. 31). The side
discharge model is shown, the rear discharge model will
have the same spindles to grease.
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2. Balancer