Making Adjustments - MTD 11A-549R730 Operator's Manual

21" hi-wheel mower
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Stopping Engine
Release blade control handle to stop the engine
and the blade.
Disconnect spark plug wire and move away from
spark plug to prevent accidental starting.
UsingYourLawnMower
You can use your mower as a mulching mower or a
rear bagger.
Be sure that the lawn is clear of stones, sticks, wire,
or other objects which could damage lawn mower
or engine.
WARNING"
If the mower strikes a foreign
object, stop the engine. Remove spark plug
wire from the spark plug and thoroughly inspect
for any damage. Repair the damage promptly
before restarting and operating the mower.
For best results, do not cut wet grass, New grass or
thick grass may require a narrower cut.
For a healthy lawn, always cut off one-third or less
of the total length of the grass.
Mulching
For effective mulching, do not cut wet grass. New or
thick grass may require a narrower cut. If the grass has
grown in excess of 4", mulching is not recommended.
Mow using the side discharge to reduce the grass
height to 3.25" maximum before mulching.
Bagging GrassClippings
You can use the grass catcher bag to collect clippings
while you are operating the mower.
Attach grass catcher following instructions on page
8 of this manual. Grass clippings will automatically
collect in the bag as you run the mower.
Operate the mower till the grass bag is full.
Stop engine completely by releasing the blade
control handle. Make sure that the unit has come to
a complete stop.
Lift discharge door and pull grass bag up and away
from the mower to dispose of the grass clippings.
SECTION 6: MAKING ADJUSTMENTS
WARNING:
Do not at any time make any
adjustments without first stopping engine and
disconnecting and grounding spark plug wire.
HandleHeightAdjustment
Your mower is shipped with the handle in the higher
height position. To lower the height proceed as follows:
Remove the starter rope from the rope guide.
Remove the upper handle by removing the hand
knobs and carriage bolts. Lay the upper handle out
of the way, being careful not to bend or kink the
cables.
Remove the hairpin clips from the weld pins on the
handle brackets and remove the wing nuts and
carriage bolts from the upper hole on the handle
mounting bracket. Press out on the legs of the
lower handle and remove lower handle from the
mower.
Turn lower handle around so the bottom of the
lower handle is facing forward. See Figure 11A.
Reassemble the handle, placing the bottom holes
in the handle over the weld pins in the handle
mounting bracket.
Place the hairpin clips in the inner holes in the weld
pins and insert the carriage bolts the upper hole on
the handle mounting bracket and secure with
plastic wing nuts. Repeat on the other side.
A
Notch
Lower
Handle
Height
Adj.
Lever
Figure 11
Reassemble the upper handle to the lower handle.
Attach the starter rope as instructed in the
Assembly Section.
Cutting HeightAdjustment
For rough or uneven lawns, move the height
adjustment lever to a higher position. This will help stop
scalping of the grass.
An adjusting plate and thumb lever at each wheel
position provides cutting height adjustment. Each
adjusting plate has nine height positions. Height of cut
will change when you move the thumb lever from one
position to another.
Simply depress the lever towards the wheel and
move the lever assembly to desired position. See
Figure 11B. All wheels must be placed in the same
relative position.
11

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Series 540

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