Craftsman 917.28746 - Manual (Page 11)

MAINTENANCE ROS "ON" Position
• When the engine is running with the
ignition switch in the ROS "ON" position
and the attachment clutch engaged,
any attempt by the operator to shift into
reverse should NOT shut off the engine.
BLADE CARE
For best results mower blades must be
sharp. Replace worn, bent or damaged
blades.
A CAUTION: Use only a replacement
blade approved by the manufacturer of
your tractor. Using a blade not approved
by the manufacturer
of your tractor is
hazardous, could damage your tractor and
void your warranty.
BLADE REMOVAL,
1. Raise mower to highest position to al-
low access to blades.
NOTE: Protect your hands with gloves
and/or wrap blade with heavy cloth.
2 .. Remove blade bolt by turning counter-
clockwise.
3. Install new blade with stamped
"GRASS SIDE" facing the ground.
IMPORTANT: To ensure proper assembly,
center hole in blade must align with star
on mandrel assembly.
4. Install and tighten blade bolt securely
(45-55 Ft. Lbs. torque).
IMPORTANT: Special blade bolt is heat
treated.
BATTERY
Your tractor has a battery charging system
which is sufficient for normal use, How-
ever, periodic charging of the battery with
an automotive charger will extend its life.
• Keep battery and terminals clean.
• Keep battery bolts tight.
• Keep small vent holes open.
• Recharge at 6-10 amperes for 1 hour.
NOTE: The original equipment battery on
your tractor is maintenance
free. Do not
21 attempt to open or remove caps or covers.
TRACTOR
Always observe safety rules when per-
forming any maintenance.
BRAKE OPERATION
If tractor requires more than five (5) feet to
stop at highest speed in highest gear on a
level, dry concrete or paved surface, then
brake must be serviced. (See "TO CHECK
BRAKE" in the Service and Adjustments
section of this manual).
TIRES
• Maintain proper air pressure in all tires
(See PSI on tires).
• Keep tires free of gasoline, oil, or insect
control chemicals which can harm rub-
ber.
• Avoid stumps, stones, deep ruts, sharp
objects and other hazards that may"
cause tire damage.
.
NOTE: To seal tire punctures and prevent
flat tires due to slow leaks, tire sealant
may be purchased from your local parts
dealer. Tire sealant also prevents tire dry
rot and corrosion.
OPERATOR PRESENCE SYSTEM AND
REVERSE OPERATION
SYSTEM (ROS)
Be sure operator presence and reverse
operation systems are working properly. If
your tractor does not function as de-
scribed, repair the problem immediately.
• The engine should not start unless the
brake pedal is fully depressed, and the
attachment clutch control is in the disEm-
gaged position.
CHECK OPERATOR PRESENCE
SYSTEM
• When the engine is running, any at-
tempt by the operator to leave the seat
without first setting the parking brake
should shut off the engine.
.
'. When the engine is running and the
attachment clutch is engaged, any at-
tempt by the operator to leave the seat
should shut off the engine. .
• The attachment clutch should never op-
erate unless the operator is in the seat.
CHECK REVERSE OPERATION (ROS)
SYSTEM .
• When the engine is running with the
ignition switch in the engine "ON" posi-
tion and the attachment clutch engaged,
any attempt by the operator to shift into
reverse should shut off the engine.
G) Mandrel
Zerks
LUBRICATION CHART
G) Spindle
~(~.I iG) Spindle
Zerk . Alii
-----J~W
Zerk
G) Fronl Wheel
Bearing zerk
@ Engine
3 - Replace blades more often when mowing in sandy so'it
4 - Not required
if equipped with maintenance-free battery.
G)General Purpose Grease
@Refer to Maintenance
"ENGINE" Section
IMPORTANT: Do not oil or grease the
pivot points which have special nylon
bearings.
Viscous lubricants will attract
dust and dirt that will shorten the life of the
self-lubricating
bearings. If you feel they
must be lubricated, use only a dry, pow-
dered graphite type lubricant sparingly.
MAINTENANCE BEFORE EVERY EVERY EVERY EVERY EVERY BEFORE
SCHEDULE EACH 8 25 50 100 SEASON .STORAGE
USE HOURS HOURS HOURS HOURS
Check Brake Ooeration V V
T Check Tire Pressure t/ V'
R
Ched'; Operator Presence & ROS System
t/
A Check for Loose Fasteners ~ V' V'
C CheckiReolace Mower Blades t/3
T Lubrication Chart III V'
o
Check Battery Level
.,.
R Clean Battery and Terminals II tI'
Check Transaxle Cooling ~
Check Mower Levelness t/
Check V-Belts ~
Check Enaine Oil Level t/ '"
Chanae Enaine Oil (with oil Mer) ""2 V
E Chanae Enaine Oil (wrthoutoil filter V
12 tI'
N Clean Air Filter ~>
G Clean Air Screen
~?
I Inspect Muffler/Spark Arrester V
N Reolace Oil Filter (If eauiooed) ""'.2
E Clean Enaine Coolina Fins "'2
Replace Spark Plug t/ V
.Replace Air Filter Paper Cartridge tl'2
Reolace Fuel Filter ~
20
1 - Change mora often when operating under a heavy load or
in high ambient temperatures.
2 - Service. more often when operating in dirty or dusty conditions.
GENERAL RECOMMENDATIONS
The warranty on this tractor does not
cover items that have been subjected to
operator abuse or negligence.
To receive
full value from the warranty, operator
must maintain tractor as instructed in this
manual.
Some adjustments will need to be made
periodically to properly maintain your
tractor.
At least once a season, check to see if
you should make any of the adjustments
described in the Service and Adjustments
section of this manual.
• At least once a year you should replace
the spark plug, clean or replace air filter,
and check blades and belts for wear.
A new spark plug and clean air filter
assure proper air-fuel mixtureand
help
your engine run better and last longer.
BEFORE EACH USE
1. Check engine oil level.
2. Check brake operation.
3. Check tire pressure.
4. Check operator presence and
ROS systems for proper operation.
5. Check for loose fasteners.