Husqvarna HU550F Operator's Manual page 7

The operation of any lawn mower can result in foreign objects thrown into the eyes, which can result in
severe eye damage. Always wear safety glasses or eye shields while operating your lawn mower or per-
forming any adjustments or repairs. We recommend standard safety glasses or a wide vision safety mask
over spectacles.
HOW TO USE YOUR LAWN MOWER
ENGINE SPEED
The engine speed was set at the factory for optimum per-
formance. Speed is not adjustable.
ENGINE ZONE CONTROL
CAUTION: Federal regulations require
an engine control to be installed on this
lawn mower in order to minimize the risk
of blade contact injury. Do not un der
any cir cum stanc es attempt to defeat
the function of the operator control. The
blade turns when the engine is running.
• Your lawn mower is equipped with an operator presence
control bar which requires the operator to be positioned
behind the mower handle to start and operate the mower.
DRIVE CONTROL (See Fig. 5)
• To start forward motion, lift drive control bar up to
handle.
• To stop forward motion, release drive control bar.
IMPORTANT: ALWAYS KEEP DRIVE CONTROL FULLY
ENGAGED AGAINST HANDLE WHEN IN USE.
OPERATOR
PRESENCE
CONTROL BAR
DRIVE CONTROL ENGAGED
DRIVE CONTROL DISENGAGED
OPERATION
DRIVE
CONTROL
BAR
FIG. 5
TO ADJUST CUTTING HEIGHT (See Fig. 6)
Raise wheels for low cut and lower wheels for high cut,
adjust cutting height to suit your requirements. Me di um
position is best for most lawns.
• To change cutting height, squeeze adjuster lever to ward
wheel. Move wheel up or down to suit your re quire-
ments. Be sure all wheels are in the same setting.
NOTE: Adjuster is properly positioned when plate tab inserts
into hole in lever. Also, 9-position adjusters (if so equipped)
allow lever to be positioned between the plate tabs.
ROTATE LEVER TOWARD ENGINE
TO LOWER MOWER
ROTATE LEVER AWAY FROM ENGINE TO RAISE MOWER
7
PLATE
TAB
LEVER
FIG. 6