Craftsman 28927 Operation Manual - Page 32

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TROUBLESHOOTING CHART: See appropriate section in manual unless directed to Sears service center PROBLEM Poor grass discharge Headlight(s) not working (if so equipped) Battery will not charge Loss of drive Engine "backfires" when turning engine "OFF" Engine dies when tractor is shifted into reverse CAUSE CORRECTION 1 Engine speed too slow. 2 Travel speed too fast. 1 Place throttle control in "FAST" position. 2 Shift to slower speed. 3 Wet grass. 4 Mower deck not level. 3 Allow grass to dry before mowing. 4 Level mower deck. 5 Low/uneven tire air pressure. 6 Worn, bent or loose blade. 7 Buildup of grass, leaves and trash under mower. 8 Mower drive belt worn. 9 Blades improperly installed. 5 Check tires for proper PSI. 6 Replace/sharpen blade. Tighten blade bolt. 7 Clean underside of mower housing. 8 Replace mower drive belt. 9 Reinstall blades sharp edge down. 10 Improper blades used. 10 Replace with blades listed in this manual. 11 Clogged mower deck vent holes 11 Clean around mandrels to from buildup of grass, leaves, and trash around mandrels. open vent holes. 1 Light switch is "OFF". 2 Bulb(s) or lamp(s) burned out. 3 Faulty light switch. 4 Loose or damaged wiring. 5 Blown fuse. 1 Turn light switch "ON". 2 Replace bulb(s) or lamp(s). 3 Check/replace light switch. 4 Check wiring and connections. 5 Replace fuse. 1 Bad battery cell(s). 2 Poor cable connections. 1 Replace battery. 2 Check/clean all connections. 3 Faulty regulator (if so equipped). 4 Faulty alternator. 1 Freewheel control in "DISENGAGED" position. 2 Debris on steering plate (if equipped). 3 Motion drive belt worn, damaged, or broken. 3 Replace regulator. 4 Replace alternator. 1 Place freewheel control in "ENGAGED" position. 2 See "CLEANING" in the maintenance section. 3 Replace motion drive belt. 4 Air trapped in transmission during 4 Purge transmission. shipment or servicing. 5 Axle key missing. 5 Install axle key at rear wheel. See "TO REMOVE WHEEL" in the Service and Adjustments section. Engine throttle control not sel 1 between half and full speed (fast) position before stopping engine, Move throttle control between half and full speed (fast) position before stopping engine. 1 Reverse operation system (ROS) 1 Turn ignition key to ROS "ON" is not "ON" while mower or other position. See Operation section. attachment is engaged. 32

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TROUBLESHOOTING
CHART:
See
appropriate
section in
manual
unless directed
to
Sears service center
PROBLEM
CAUSE
CORRECTION
Poor
grass
1
Engine
speed
too
slow.
1
Place
throttle
control
in "FAST"
discharge
position.
2
Travel
speed
too fast.
2
Shift
to slower
speed.
3
Wet
grass.
3
Allow
grass
to dry
before
mowing.
4
Mower
deck
not level.
4
Level
mower
deck.
5
Low/uneven tire air pressure.
6
Worn, bent or loose blade.
5
Check
tires
for proper
PSI.
6
Replace/sharpen
blade.
Tighten
blade
bolt.
7
Buildup
of grass,
leaves
and
trash
under
mower.
7
Clean
underside
of mower
housing.
8
Mower
drive
belt worn.
8
Replace
mower
drive
belt.
9
Blades
improperly
installed.
9
Reinstall
blades
sharp
edge
down.
10
Improper
blades
used.
10
Replace
with
blades
listed
in
this manual.
11
Clogged
mower
deck
vent
holes
11
Clean
around
mandrels
to
from
buildup
of grass,
leaves,
and
open
vent
holes.
trash
around
mandrels.
Headlight(s)
not
working
(if
so equipped)
1
Light switch
is "OFF".
2
Bulb(s)
or lamp(s)
burned
out.
3
Faulty
light switch.
4
Loose
or damaged
wiring.
1
Turn light switch
"ON".
2
Replace
bulb(s)
or lamp(s).
3
Check/replace
light switch.
4
Check
wiring
and connections.
Battery
will
not
charge
5
Blown
fuse.
1
Bad battery
cell(s).
2
Poor
cable
connections.
5
Replace
fuse.
1
Replace
battery.
2
Check/clean
all connections.
Loss
of drive
3
Faulty
regulator
(if so equipped).
4
Faulty
alternator.
1
Freewheel
control
in
"DISENGAGED"
position.
2
Debris
on steering
plate
(if
equipped).
3
Motion
drive
belt worn,
damaged,
or broken.
3
Replace
regulator.
4
Replace
alternator.
1
Place
freewheel
control
in
"ENGAGED"
position.
2
See
"CLEANING"
in the
maintenance
section.
3
Replace
motion
drive
belt.
4
Air trapped
in transmission
during
4
Purge
transmission.
shipment
or servicing.
5
Axle
key missing.
5
Install axle key at rear wheel. See
"TO REMOVE WHEEL"
in the
Service and Adjustments section.
Engine
"backfires"
when
turning
engine
"OFF"
Engine
throttle
control
not
sel
1
Move
throttle
control
between
between
half
and full
speed
(fast)
half and full
speed
(fast)
position
position
before
stopping
engine,
before
stopping
engine.
Engine
dies
when
1
Reverse
operation
system
(ROS)
1
Turn ignition
key to ROS "ON"
tractor
is shifted
is not "ON" while
mower
or other
position.
See Operation
section.
into
reverse
attachment
is engaged.
32