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Craftsman 917.25574 Operator's Manual page 16

Lawn tractor 21.5 hp 42" mower electric start automatic transmission

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• The attachments can be used during
the engine warm-up period after the
transmission
has been warmed up
and may require the choke control be
pulled out slightly.
NOTE: tfata high altitude (above 3000 feet)
or in cold temperatures (below 32°F (O°C))
the carburetor fuel mixture may need to be
adjusted for best engine performance (see
"TO ADJUST CARBURETOR" in the Service
and Adjustments section of this manual).
PURGE TRANSMISSION
_CAUTION:
Never engage or disengage
freewheel lever while the engine is running.
Toensure proper operation and performance,
it is recommended that the transmission be
purged before operating tractor for the first
time. This procedure will remove anytrapped
air inside the transmission which may have
developed during shipping of your tractor.
IMPORTANT:
Should your transmission
require removal for service or replacement,
it should be purged after reinstallation before
operating the tractor.
1. Place tractor safely on a level surface -
that is clear of objects and open - with
engine off and parking brake set,
2. Disengage
transmission
by placing
freewheel control in disengaged position
(See "TO TRANSPORT" in this section
of manual).
3. Sitting in the tractor seat, start engine.
After the engine is running, move throttle
control to stow position. Disengage park-
ing brake.
_!4]kCAUTION: At any time, during step 4,
there may be movement of the drive wheels.
4. Depress forward drive pedal tofull forward
position and hold forfive (5) seconds and
release pedal. Depress reverse drive
pedal to full reverse position and hold
for five (5) seconds and release pedal.
Repeat this procedure three (3) times,
5. Shutoff engine and set parking brake.
6. Engage transmission by placing free-
wheel control in engaged position (See
"TO TRANSPORT" in this section of
manual).
7. Sitting in the tractor seat, start engine.
After the engine is running, move throttle
control to half (1/2) speed. Disengage
parking brake,
8. Drive tractor forward for approximately
five feet then backwards for five feet.
Repeatthis driving procedurethreetimes.
'four transmission is now purged and now
ready for normal operation.
16
MOWING TIPS
• Tire chains cannot be used when the
mower housing is attached to tractor.
• Mower should be properly leveled for
best mowing performance. See "TO
LEVEL MOWER HOUSING" in the
Service and Adjustments section of this
manual,
• The left hand side of mower should be
used for trimming,
• Drive so that clippings are discharged
onto the area that has already been
cut. Have the cut area to the right of
the tractor. This will result in a more
even distribution of clippings and more
uniform cutting.
° When mowing large areas, start by
turning to the right so that clippings will
discharge away from shrubs, fences,
driveways, etc. After one or two rounds,
mow in the opposite direction making
left hand turns until finished.
• If grass is extremely tall, it should be
mowed twice to reduce load and pos-
sible fire haTard from dried clippings.
Make first cut relatively high; the second
to the desired height.
• Do not mow grass when it is wet.
Wet grass will plug mower and leave
undesirable clumps. Allow grass to dry
before mowing.
• Always operate engine at full throttle
when mowing to assure better mowing
performance and proper discharge of
material. Regulate ground speed by
selecting a low enough speed to give
the mower cutting performance as well
as the quality of cut desired.
• When operating attachments, select a
ground speed that will suit the terrain
and give best performance of the at-
tachment being used.

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