Purge Transmission; Automatic Transmission Warm Up; Cold Weather Starting - Craftsman 917.272280 Owner's Manual

Lawn tractor 22.0 hp, 42" mower electric start automatic transmission
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NOTE:Beforestarting,readthe
warm and
cold starting procedures below.
6. Insert key into ignition and turn key
clockwise to start position and release
key as soon as engine starts. Do not
run starter continuously for more than
fifteen seconds per minute. If the
engine does not start after several
attempts, push choke control in, wait a
few minutes and try again. If engine
still does not start, pull the choke
control out and retry.
WARM WEATHER STARTING (50 ° F and
above)
7. When engine starts, slowly push
choke control in until the engine
begins to run smoothly.
If the engine
starts to run roughly, pull the choke
control out slightly for a few seconds
and then continue
to push the control
in slowly.
• The attachments and ground drive can
now be used. If the engine does not accept
the load, restart the engine and allow it to
warm up for one minute using the choke
as described above.
COLD WEATHER STARTING (500 F and
below)
7. When engine starts, slowly push
choke control in until the engine
begins to run smoothly.
Continue
to
push the choke control in small steps
allowing the engine to accept small
changes
in speed and load, until the
choke control is fully in. If the engine
starts to run roughly, pull the choke
control out slightly for a few seconds
and then continue to push the control
in slowly. This may require an engine
warm-up period from several seconds
to several minutes, depending
on the
temperature.
AUTOMATIC TRANSMISSION WARM UP
Before driving the unit in cold weather,
the transmission
should be warmed up as
follows:
1. Be sure the tractor is on level ground.
2. Release the parking brake and let the
brake slowly return to operating
position.
3. Allow one minute for transmission
to
warm up. This can be done during the
engine warm up period.
• 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: If at a high altitude (above 3000
feet) or in cold temperatures (below 32 F)
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.
To ensure proper operation and perfor-
mance, it is recommended that the
transmission be purged before operating
tractor for the first time. This procedure will
remove any trapped air inside the
transmission which may have developed
during shipping of your tractor.
IMPORTANT:
Should your transmission
require removal for service or replace-
ment, it should be purged after reinstalla-
tion before operating the tractor.
1. Place tractor safely on level surface
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 slow position.
Disengage
parking
brake.
4.
Depress forward drive pedal to full
forward position and hold for five (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.
NOTE:
During this step there will be no
movement of drive wheels. The air is
being removed from hydraulic drive
system.
5. Shutoff engine and set parking brake.
6. Engage transmission
by placing
freewheel
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 approxi-
mately five feet then backwards
for
five feet. Repeat this driving proce-
dure three times.
Your transmission
is now purged and
now ready for normal operation.
16

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