Ariens 513-517 User Manual Page 23

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4.5 CHECK MOWER BLADE
See Figures 5 and 6.
Regularly check mower blades for wear and that lock
washer is fully compressed by cap screw (requires
25-30 ft-lbs (33-40 Nm) of torque on cap screw).
When blade needs sharpening:
1. Block blade to prevent rotation.
2. Remove cap screw, lock washer and blade from
shaft.
3. Sharpen both ends of blade at original angle (25
o
),
removing equal amounts of material from each end
to maintain proper blade balance. New blades are
balanced to within 1.3 in. oz. at factory. DO NOT
grind around corner at tip of blade. If cutting edge
of blade cannot be sharpened in a straight line to
within 1/8 of an inch of its end, replace blade with
Ariens replacement blade only.
4. Install blade, lock washer and tighten cap screw
25-30 ft-lbs (33-40 Nm) until lock washer is fully
compressed.
IMPORTANT:
If mower is used under sandy soil
conditions, replace blades when air lifts become
eroded.
4.6 CHECK DRIVE BELT
Check drive belt for wear or damage. Replace belt if
worn or damaged.
4.7 CHECK ENGINE/BLADE CONTROL
The engine/blade control must stop the engine and
blade within 3 seconds after the bail is released. If the
engine or blade continues to run, adjust or repair
control immediately.
Engine control must stop engine ignition, at 3/4" to
1-1/4" from handlebar as control is released.
Figure 4
1. Grease Fitting
2. Swivel Lock Hole
1
2
OM0210
Figure 5
1. Cutting Edge
2. Square Corner
3. Air Lift Erosion
4. Air Lift
5. Reverse Lift
OM0240
OM0230
1
2
3
4
5
1
2
3
4
Figure 6
1. Blade
2. Cap Screw, Lock
Washer & Flat Washer
3. Drive Belt
4. Idler
1
2
3
4
OM0250
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