Drive Control Adjustment; Engine Zone Control - Husqvarna 87521RES Owner's Manual

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
performing 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 con-
trol. The blade turns when the engine
is running.
• Your lawn mower is equipped with an operator pres-
ence control bar which requires the operator to be
positioned behind the lawn mower handle to start and
operate the lawn mower.
DRIVE CONTROL (See Fig. 5A)
• Self-propelling is controlled by hold ing the operator
presence control bar down to the handle and pulling
the drive control lever rearward to the handle. The
farther toward the handle the lever is pulled, the faster
the unit will travel.
• Forward motion will stop when either the operator pres-
ence control bar or drive control lever are released. To
stop forward motion without stop ping engine, re lease
the drive control lever only. Hold op er a tor presence
control bar down against handle to con tin ue mowing
without self-propelling.
NOTE: If after releasing the drive control the mower will
not roll backwards, push the mower forward slightly to
disengage drive wheels.
OPERATOR PRESENCE CONTROL BAR
TO ENGAGE
DRIVE CONTROL
OPERATION
DRIVE
CONTROL
LEVER
DRIVE CONTROL
DISENGAGED
FIG. 5A
DRIVE CONTROL ADJUSTMENT (See Fig. 5B)
Over time, the drive control system may become "loose",
resulting in decreased speed. There is a turnbuckle on the
un der side of the drive control housing to increase tension
on the drive cable. Pro ceed as follows:
1. Turn unit off and disconnect spark plug wire from plug.
2. Turn nut on underside of drive control to increase drive
speed.
3. Operate mower to test drive speed. Readjust as re-
quired.
4. If condition fails to improve after the above steps
(forward speed remains the same), your drive belt is
worn and should be re placed.
ADJUSTMENT
TURNBUCKLE
TO ADJUST CUTTING HEIGHT (See Fig. 6)
All four wheels are adjusted by a single lever.
• Pull adjuster lever toward wheel. To raise mower, move
lever forward to desired position. To lower mow er, move
the lever toward the rear.
LEVER BACKWARD
TO LOWER MOWER
WHEEL
ADJUSTER
LEVER
LEVER FORWARD
TO RAISE MOWER
7
FIG. 5B
FIG. 6