Walker R21 User Manual

Operating Instructions R21
30
RH Lock Hole
Insert RH and LH Tilt-Up Links into the
Lock Holes
Tilt-Up Links
Deck Locked in Tilt-Up Position
5. Reverse procedure to lower the deck back to
the operating position. One side at a time,
hold the lock lever in the down position and
simultaneously raise the carrier frame at the
pivot joint to re-engage the deck hinge lock.
CAUTION
Do not operate the mower with the carrier
frame unlocked. The frame must be locked
before operating the mower. A safety switch
prevents the engine from starting with the RH
pivot unlocked.
Recommendations for Mowing
● Keep the mower deck and discharge shield
clean.
● Mow with sharp blades. A dull blade tears the
grass (resulting in poor lawn appearance) and
uses extra power (slowing the mowing speed).
● It is preferable to cut grass when it is dry and
not too tall. Mow frequently and do not cut
grass too short. (For best appearance, cut off
1/3 or less of existing grass height.)
● When mowing, operate the engine at full
throttle for the best cutting action. Mowing
with a lower engine RPM causes the mowing
blade to not cut clean and tear the grass. The
engine is designed to be operated at full
speed.
● When mowing in adverse conditions (tall and/
or wet grass), mow the grass twice. Raise the
mower to the highest setting, 4 in. (10 cm), for
the rst pass and then make a second pass
cutting to the desired height.
IMPORTANT: Operate the engine at full
throttle when mowing, to allow the engine to
produce full horsepower and to increase ef-
ciency of the engine cooling system.
● Use a slow setting on the FSC for trimming
operations.
● Use an alternating stripe mowing pattern for
best appearance and vary the direction of the
stripe each time the grass is mowed to avoid
wear patterns in the grass.
● Make sure the mower is leveled properly for
a smooth cut. Refer to “Deck Leveling” on
page 55.
● The side discharge deector shield must not
be removed and must be kept in the lowest
possible position to deect grass clippings and
thrown objects down ward.
● Orient the side discharge away from side walks
or streets to minimize cleanup of clippings.
When mowing close to obstacles, orient the
side dis charge away from obstacles to reduce
the chance of damage to property by thrown
objects.

Walker R21 Specifications

General

Drive System	Hydrostatic
Cutting Height	1.5 - 4.5 inches
Engine	Kohler CH740
Engine Type	Air-cooled
Cutting Width	52 inch
Wheel Size	20 inches (rear)