Operating Instructions
D21d
34
Suspension Seat
A fully adjustable suspension seat is standard on
Model D21d. This seat is adjustable for back pitch,
weight, lumbar support and armrest inclination.
Proper adjustment for each operator is essential to
safe operation and operator comfort.
Read operating instructions in full before you use
the seat.
NOTE:
Driver seats that have been adjusted incor-
rectly have little or no vertical travel with the opera-
tor in the seat. To prevent damage to the driver’s
back and to the seat, the seat must be adjusted for
the driver’s weight
before use
and
before every
change of driver.
To prevent injury,
no objects
should be placed within the moving area
of the
driver seat.
CAUTION
To eliminate any risk of accident, the seat
settings must be checked to ensure they
are correctly engaged before the mower is
driven.
Adjustments must
not
be made
while driving.
If you make any changes to the suspension
seat
(for example fitting parts which are not origi-
nal
GRAMMER
parts) it may no longer meet the
safety standards to which it is tested.
Functions
may be impaired,
threatening your
safety.
For
this reason,
any change in design of the seat
must be approved by
GRAMMER (Seat Manufac-
turer).
IMPORTANT:
Fasteners must be
checked regu-
larly for tightness.
If the seat wobbles there may
be loose bolts or other faults.
If you note that the seat does not function correctly
(for example a defective seat suspension; improp-
er curving of the lumbar support or damaged bel-
lows),
contact your Walker dealer immediately
to arrange for repairs to be carried out. If you fail
to do so, your health may be affected and the
risk
of accident increased.
CAUTION
Before the tractor is used, the safety switch
must be checked for proper function. The
operation of the switch is checked by hav-
ing the operator lift off the seat with the
tractor moving forward and/or the blades
engaged—this action should cause the ma-
chine to stop. If a malfunction is detected,
the tractor must not be driven; the safety
switch system should be repaired or re-
placed before operating the mower.
CAUTION
Except for the driver’s weight during nor-
mal use, no loads must be placed on seats
with a built-in switch detecting seat occu-
pation, as the vehicle may otherwise start
to move by itself.
For armrest inclination adjustment,
the inclina-
tion of the armrests can be modified by turning the
adjustment knob. Refer to
Figure 1.
Turning the knob to the right lifts the armrest in
front, turning it to the left, lowers it in front.
For weight adjustment,
the weight of the respec-
tive driver must be set while sitting on the seat.
Fold out the weight adjustment handle completely,
hold it at the front and move it upwards or down-
wards (10 movements from minimum to maxi-
mum).
Before every new movement, bring the handle
back to the starting position (audible locking
sound). The driver’s weight has been set correctly,
when the arrow is in the middle of the viewing
window. Refer to
Figure 2.
IMPORTANT:
To prevent injury to the operator
and/or damage to the seat, the setting for the
driver’s weight must be checked and adjusted as
necessary before the mower is driven.
When the minimum/maximum weight adjustment
has been reached, you will notice an empty move-
ment in the handle.
When you have set the weight, fold the handle
completely into the locking position.
