Purge Transmission; Warm Weather Starting; Cold Weather Starting; Automatic Transmission Warm Up - Craftsman 917.272922 Owner's Manual

Lawn tractor 20.0 hp, 42" mower electric start automatic transmission
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WARMWEATHERSTARTING(50° F and
above)
8. Whenengine starts, slowly pushchoke
controlin until the engine beginsto
run smoothly.If the enginestarts to
run roughly,pull the chokecontrolout
slightlyfor a few seconds and then
continueto push the control in slowly.
• The attachmentsand ground drivecan
now be used. If the engine does not
acceptthe load, restartthe engine and
allow it to warm up for one minuteusing
the chokeas describedabove.
COLD WEATHERSTARTING(50° F and
below)
8. Whenengine starts, slowly pushchoke
controlin until the engine beginsto run
smoothly.Continueto push the choke
controlin small steps allowingthe en-
gine to accept smallchanges in speed
and load, untilthe choke control is fully
in. If the engine starts to run roughly,
pull the choke controlout slightly for a
few secondsand then continueto push
the control in slowly.This may require
an engine warm-upperiod from several
secondsto severalminutes,depending
on the temperature.
AUTOMATIC TRANSMISSIONWARM UP
Beforedrivingthe unit in cold weather,
the transmissionshould be warmed up as
follows:
1. Be sure the tractor is on levelground.
2. Placethe motioncontrol lever in
neutral.Releasethe parking brakeand
let the clutch/brakeslowly return to
operatingposition.
3. Allow one minutefor transmissionto
warm up.This can be done duringthe
enginewarm up period.
• The attachmentscan be used during
the enginewarm-up period after the
transmissionhas been warmed up and
may requirethe chokecontrol be pulled
out slightly.
NOTE: If at a high altitude (above3000
feet) or in cold temperatures(below32 F)
the carburetorfuel mixture may need to
be adjustedfor best engine performance
(see "TOADJUSTCARBURETOR"in the
Serviceand Adjustmentssectionof this
manual).
PURGE
TRANSMISSION
_CAUTION:
Never engage or dis-
engage freewheel lever while the engine
is running.
To ensure proper operation and per-
formance, it is recommended
that the
transmission
be purged before operating
tractor for the first time. This procedure will
remove any trapped air inside the trans-
mission 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 reinstall-
ation 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 dis-
engaged" position (See "TO TRANS-
PORT' 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 for-
ward, after the tractor moves approxi-
mately 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
6ready for normal operation.
1

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