MTD 607 Operator's Manual page 21

Hole
Front of Tractor
NOTE:
View shown from above tractor.
Figure 17
Adjust the drive pedal after replacing the drive belts
on your tractor, if necessary, as follows:
• Locate the speed control assembly on the
underside of the steering support bracket. See
Figure 18.
Idler
Adj. Rod
Neutral
Return
Bracket
Hairpin
Clips
Drive Pedal
Return Spring
Figure 18
• Remove both hairpin clips from the pin which
is fastened to the speed control assembly (be
careful not to lose the small flat washers found
on the pin). See Figure 18.
• Remove the drive pedal return spring.
• Using two 9/16" wrenches, remove the pin
from the speed control assembly. See Figure
18.
Thread the idler adjustment rod inward or outward to
lengthen or shorten the travel of the double-idler
bracket until proper adjustment is achieved.
• Reassemble by following the above steps in
reverse order.
CUTTING BLADES
WARNING:
Always protect hands by wearing heavy
leather work gloves to grasp blades.
Double-idler
Bracket
Idler
Adj. Rod
Place Wrenches Here
Pin
Speed Control
Assembly
Cutting blades are sharp.
The blades may be removed for sharpening or
replacement as follows.
• Remove the deck from beneath the tractor,
(refer to DECK REMOVAL earlier in this
section for detailed instructions) then gently
flip the deck over to expose its underside.
• Place a block of wood between the center
deck housing baffle and the cutting blade to
act as a stabilizer. See Figure 19.
• Use a 15/16" wrench to remove the hex flange
nut that secures the blade to the spindle
assembly. See Figure 19.
NOTE:
The hex flange nut has a right-handed
thread pattern. Do NOT attempt to force the nut in
the incorrect direction. Doing so may damage the
nut and create a safety hazard.
Hex Flange Nut
Spindle
Assembly
To properly sharpen the cutting blades, remove
equal amounts of metal from both ends of the blades
along the cutting edges. See Figure 20.
Sharpen the cutting edge straight across, parallel to
the trailing edge, at a 25° to 30° angle. See Figure
20.
IMPORTANT:
If the cutting edge of the blade has
already been sharpened to within 5/8" of the wind
wing radius, or if any metal separation is present,
replace the blades with new ones. See Figure 20.
Worn Blade Edge
Blade Separation
Sharpen Edge Evenly
21
Block of Wood
Cutting Blade
Figure 19
Wind Wing
Figure 20