Tractor, Check Operator Presence System

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

disengaged 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.

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

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.

•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.

_i, 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 allow 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 newbladewith stamped"THISSIDE UP" facing deck and mandrel assembly.

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.Mandrel Assembly

Blade

"Star

Center Hole

BATTERY

Your tractor has a battery charging system which is sufficient for normal use. However, periodic charging of the battery with an au- tomotive 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.

917.28991, 28991 specifications

The Craftsman 28991, also referred to by its model number 917.28991, is a robust lawn mower designed for efficiency and convenience in residential landscaping. This particular model is tailored to meet the diverse needs of homeowners who seek a reliable solution for lawn care.

One of the foremost features of the Craftsman 28991 is its powerful engine. Equipped with a high-performance, gasoline-powered engine, it delivers ample power to tackle various types of grass and terrain. The engine’s design emphasizes reliability, ensuring that users can depend on it without frequent maintenance issues.

The mower includes a versatile cutting deck that is adjustable, offering multiple height settings. This adjustment capability allows users to customize the cutting height to suit their lawn type and personal preferences. Whether you prefer a low trim for a manicured look or a higher cut for a more natural appearance, this mower accommodates those needs effortlessly.

With a focus on user comfort, the Craftsman 28991 features an ergonomic handle. The handle's design is meant to reduce fatigue during extended mowing sessions, allowing for a more pleasant mowing experience. The mower also incorporates a self-propelling mechanism, which makes it easier to maneuver across varying terrains, especially on slopes or uneven ground.

In terms of technology, the Craftsman 28991 offers a bagging option alongside mulching capabilities. The rear bag collects grass clippings, reducing the need for additional yard cleanup, while the mulching feature finely chops the clippings, returning vital nutrients back to the lawn. This dual-functionality promotes a healthier lawn while simplifying the mowing process.

The construction of the Craftsman 28991 highlights durability. Its steel deck is designed to withstand the rigors of frequent use, ensuring longevity while maintaining performance. Additionally, the design includes oversized wheels that enhance traction and maneuverability, making it suitable for navigating tight spaces and obstacles.

Overall, the Craftsman 28991,917.28991 is an exceptional choice for homeowners looking for a dependable, feature-rich mower. With its powerful engine, adjustable cutting deck, ergonomic design, and dual-functioning capabilities, it stands out as a reliable tool for achieving a well-maintained lawn with minimal effort.

Craftsman 917.28991 Tractor, Check Operator Presence System, Check Reverse Operation ROS System

Models: 917.28991 28991