Maintenance
20
Sharpening the Blade(s)
1.
Use a file to sharpen the cutting edge at both
ends of the blade (Fig. 32). Maintain the original
angle. The blade retains its balance if the same
amount of material is removed from both cutting
edges.
1
Figure 32
1. Sharpen at original angle
2.
Check the balance of the blade by putting it on a
blade balancer (Fig. 33). 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 the back side of the blade. Repeat this
procedure until the blade is balanced.
1
2
Figure 33
1. Blade
2. Balancer
Installing the Blade(s)
1.
Hold the blade end using a rag or thickly padded
glove. Install the blade, Belleville washer, and
the blade bolt (Fig. 31).
IMPORTANT: The sail (curved part of the
blade) must be pointing up toward the inside
of the mower to assure proper cutting.
2.
Tighten the blade bolt to 40--60 ft--lb
(54--81 Nm).
1796
1
2
3
4
5
Figure 34
1. Bolt
2. Belleville washer (concave
side toward blade)
3. Blade
4. Spindle
5. Sail
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, lower the attachment lift, stop the
engine, and remove the ignition 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.
Summary of Contents for 78357
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