Craftsman 917.27481 owner manual Operator Presence System Reverse Operation System ROS, Blade Care

Page 18

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 checked and adjusted. (See "TO ADJUST BRAKE" in the Service and

Adjustments section of this manual).

TIRES

Maintain proper air pressure in all tires (See "PRODUCT SPECIFICATIONS" section of this manual).

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 disen-

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 ig- nition switch in the engine "ON" position and the attachment clutch is engaged, any attempt by the operator to shift into reverse should shut off the engine.

ROS "ON" Position Engine "ON" Position (Normal Operating)

When the engine is running with the ignition switch in the ROS "ON" position and the attachment clutch is 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 kept sharp. Replace bent or damaged blades.

BLADE REMOVAL

1.Raise mower to highest position to al- low access to blades.

2.Remove blade bolt, lock washer and flat washer securing blade.

3.Install new or resharpened blade

with trailing edge up towards deck as shown.

IMPORTANT: To ensure proper assembly, center hole in blade must align with star on mandrel assembly.

4.Reassemble blade bolt, lock washer and flat washer in exact order as shown.

5.Tighten blade bolt securely (27-35 Ft.

Lbs. torque).

IMPORTANT: Blade bolt is heat treated.

Trailing

 

Mandrel As,,

Edge Up_

Blade

Cente

 

 

Lock Washer-.-_

5_-Blade Bolt

If bolt needs replacing, replace only with approve bolt shown in the Repair Parts.

TO SHARPEN BLADE

NOTE: We do not recommend sharp- ening blade - but if you do, be sure the blade is balanced.

Care should be taken to keep the blade balanced. An unbalanced blade will cause

excessive vibration and eventual damage to mower and engine.

The blade can be sharpened with a file or on a grinding wheel. Do not attempt to sharpen while on the mower.

To check blade balance, you will need a

5/8" diameter steel bolt, pin, or a cone balancer. (When using a cone balancer, follow the instructions supplied with

18balancer.)

Image 18
Contents Craftsman Limited Warranty on Craftsman Riding Equipment Limited Warranty on BatteryGeneral Operation IV, Towing ServiceII1. Children Safe Handling of GasolineGeneral Service Sears Installation Service Customer ResponsibilitiesSteering Wheel Tools Required for Assembly Before Removing Tractor From Skid Attach Steering WheelUnpack Carton Check Battery Check Deck Levelness Checktire PressureALL Belts Check Brake SystemUnlocked Tractor ROS onHOW to USE Your Tractor To SET Parking Brake StoppingTo Move Forward and Backward Using the Reverse Operation System To Operate MowerOperating in Reverse Ments To TransportOn Hills ADD GasolineMowing Tips General Recommendations ROSOperator Presence System Reverse Operation System ROS Blade CareBlade Removal Batt E RY AIR Filter Clean AIR ScreenEngine OIL Filter MufflerTo Install Mower To Remove MowerTo Level Mower Housing To Replace Mower Blade Drive BeltTo Check Brake To Check and Adjust BrakeTo Adjust Brake To Replace Motion Drive BeltMent To Remove Wheel for RepairsInterlocks and Relays Replacing BatteryTo Replace Headlight Bulb To Remove Hood and Grill AS- SemblyFinal Setting To Adjust CarburetorPreliminary Setting EngineEngine OIL BatteryFuel System CylindersProblem Cause 3ORRECTIONStart Engine Problem CauseCorrection Problem Cause Correction OFFSchematic O11oElectrical Part Description Tractor - Model Number 917,274810 Chassis and EnclosuresTractor - Model Number 917,274810 Chassis and Enclosures PartTractor - Model Number Ground Drive Tractor - Model Number 917,274810 Ground Drive KEY Part DescriptionSteering Tractor - Model Number 917,274810 Optional Equipment Spark ArresterTractor - Model Number 917,274810 Seat Assembly Part DescriptionDecals Wheels and TiresKEY Part Description Tractor - Model Number Lift Assembly 161718Tractor - Model Number 917,274810 Mower Deck Given U. S Inches 1 inch = 25.4 mm 4PA REF Part NO. no DescriptionMST 105137d276 rl 763 lO5% PTO All component Dimensions Given in U.S. inches Page Page Page Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAXYour Home