Purge Transmission; Cold Weather Starting; Automatic Transmission Warm Up - Craftsman 917.272462 Owner's Manual

Lawn tractor 21.5 hp, 42" mower electric start automatic transmission
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• The attachmants and .gpun_l. d rive can
nowbe used. Ifthe engine doee not accept
the load, rsstartthe angine and allowit to
warm up for one minuteusingthe choke
as describedabove.
COLD WEATHER STARTING (50° F and
below)
8. 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.
AUTOMATICTRANSMISSION 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. Place the motion control lever in
neutral. Release the parking brake
and let the clutch/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 pedod 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
A CAUTION:
Never
engage
or disen-
gage Treewneel lever wnlle me 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 replacement,
it should be purged after reinstallatlon
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 "transmission
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. With
motion control
lever in neutral (N)
position, slowly disengage
clutch/
brake pedal.
4.
Move motion control lever to full
forward position and hold for five (5)
seconds. Move lever to full reverse
position and hold for five (5) seconds.
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.
Move motion control lever to neutral
(N) position. Shutoff engine and set
parking brake.
6.
Engage transmission
by placing
freewheel
control in "transmission
engaged" position (See "TO TRANS-
PORT" 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. With
motion control lever in neutral (N)
position, slowly disengage
clutch/
brake pedal.
8.
Slowly move motion control lever
forward, after the tractor moves
approximately
five (5) feet, slowly
move motion control
lever to reverse
position. After the tractor moves
approximately
five (5) feet return the
motion control lever to the neutral (N)
position. Repeat this procedure with
the motion control lever three (3)
times.
Your transmission
is now purged and
ready for normal operation.
16

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