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Using the Self-propel Drive

Self-propel models only

To operate the self-propel drive, squeeze the self-propel
drive bar (Figure 15) toward the handle and hold it.

Figure 15

1.

Self-propel drive bar

To disengage the self-propel drive, release the self-propel
drive bar.

Note:

The maximum self-propel ground speed is fixed.

To reduce the ground speed, increase the space between
the self-propel drive bar and the handle.

Stopping the Engine

Service Interval:

Before each use or daily

To stop the engine, release the blade control bar
(Figure 16).

Note:

Remove the ignition key when you leave the

mower (electric-start mowers only).

Important:

When you release the blade control

bar, both the engine and blade should stop within
3 seconds. If they do not stop properly, stop using
your mower immediately and contact an Authorized
Service Dealer.

Figure 16

Mulching the Clippings

Your mower comes from the factory ready to mulch the
grass and leaf clippings back into the lawn.

If the grass bag is on the mower, remove it (refer to
Removing the Grass Bag) before mulching the clippings.

Bagging the Clippings

Use the grass bag when you want to collect grass and
leaf clippings from the lawn.

A worn grass bag could allow small stones
and other similar debris to be thrown in the
operator’s or bystander’s direction and result in
serious personal injury or death to the operator
or bystanders.

Check the grass bag frequently. If it is damaged,
install a new Lawn-Boy replacement bag.

The blade is sharp; contacting the blade can
result in serious personal injury.

Stop the engine and wait for all moving parts to
stop before leaving the operating position.

Installing the Grass Bag

1. Lift up the rear deflector (Figure 17).

Figure 17

1.

Rear deflector

2. Insert the grass bag handle onto the notches on the

handle brackets (Figure 17).

9

Summary of Contents for 10640

Page 1: ...an Authorized Service Dealer or Lawn Boy Customer Service and have the model and serial numbers of your product ready Figure 1 identifies the location of the model and serial numbers on the product W...

Page 2: ...nd follow all instructions on the machine and in the manual s before starting Do not put hands or feet near or under the machine Keep clear of the discharge opening at all times Only allow responsible...

Page 3: ...fill containers inside a vehicle or on a truck or trailer bed with a plastic liner Always place containers on the ground away from your vehicle before filling Remove gas powered equipment from the tr...

Page 4: ...read the instructions before servicing or performing maintenance 4 Cutting dismemberment hazard of hand or foot mower blade stay away from moving parts and keep all guards and shields in place 5 Cutt...

Page 5: ...th oil in the engine but it does come with a bottle of oil 1 Remove the dipstick Figure 4 Figure 4 2 Slowly pour oil into the oil fill tube until the oil level reaches the Full line on the dipstick Fi...

Page 6: ...gnition key electric start models only 3 Air filter 10 Grass bag 4 Fuel tank cap 11 Battery electric start models only 5 Oil fill Dipstick 12 Cutting height levers 4 6 Recoil start handle 13 Battery c...

Page 7: ...or daily 1 Remove the dipstick wipe it clean and fully install the dipstick Figure 9 Figure 9 2 Remove the dipstick and check the oil level Figure 9 If the oil level is below the Add mark on the dipst...

Page 8: ...Engine 1 Firmly push in the primer 3 times with your thumb holding the primer in for a second before releasing it each time models 10643C and 10644C only Figure 11 Figure 11 Note If the air temperatu...

Page 9: ...uthorized Service Dealer Figure 16 Mulching the Clippings Your mower comes from the factory ready to mulch the grass and leaf clippings back into the lawn If the grass bag is on the mower remove it re...

Page 10: ...n appearance If the grass is too long the mower may plug and cause the engine to stall Mow only dry grass or leaves Wet grass and leaves tend to clump on the yard and can cause the mower to plug or th...

Page 11: ...dulls quickly Refer to your Engine Operator s Manual for any additional yearly maintenance procedures Important Refer to your Engine Operator s Manual for additional maintenance procedures Preparing f...

Page 12: ...s 1 Perform the pre maintenance procedures refer to Preparing for Maintenance 2 Remove the dipstick Figure 21 Figure 21 3 Tip the mower onto its side with the dipstick down to drain the used oil out t...

Page 13: ...mportant You will need a torque wrench to install the blade properly If you do not have a torque wrench or are uncomfortable performing this procedure contact an Authorized Service Dealer Examine the...

Page 14: ...pel drive bar and ensure that the cable is loose Note The cable must be loose with the self propel drive bar in the released position otherwise the mower may creep when the bar is disengaged Cleaning...

Page 15: ...corrosion during the off season 7 Loosely install the spark plug 8 Tighten all nuts bolts and screws 9 Charge the battery for 24 hours then unplug the battery charger an store the mower in an unheated...

Page 16: ...tarting difficulties due to the following Failure to follow proper maintenance procedures Rotary mower blade striking an object Contaminants in the fuel system Improper fuel consult your Operator s Ma...

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