MAINTENANCE

TRACTOR

Always observe safety rules when performing any main- tenance.

BRAKE OPERATION

If tractor requires more than fi ve (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 chemi- cals which can harm rubber.

•Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage.

NOTE: To seal tire punctures and prevent fl at 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 OP- ERATION SYSTEM (ROS)

Be sure operator presence and reverse operation systems are working properly. If your tractor does not function as described, 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 attempt by the operator to leave the seat without fi rst setting the parking brake should shut off the engine.

•When the engine is running and the attachment clutch is engaged, any attempt by the operator to leave the seat should shut off the engine.

•The attachment clutch should never operate 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" position 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 en- gaged, any attempt by the operator to shift into reverse should NOT shut off the engine.

ROS "ON" POSITION

ENGINE "ON" POSITION

 

(NORMAL OPERATING)

828

BLADE CARE

For best results mower blades must be kept sharp. Replace bent or damaged blades.

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 (See Fig. 8)

•Raise mower to highest position to allow access to blades.

NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth.

•Remove blade bolt by turning counterclockwise.

•Install new or resharpened blade with stamped "THIS SIDE UP" facing deck and mandrel assembly.

IMPORTANT: TO ENSURE PROPER ASSEMBLY, CENTER HOLE IN BLADE MUST ALIGN WITH STAR ON MANDREL ASSEMBLY.

•Install and tighten blade bolt securely (45-55 Ft. Lbs. torque).

IMPORTANT: SPECIAL BLADE BOLT HEAT TREATED.

BLADE

STAR

 

 

CENTER

 

 

HOLE

 

BLADE BOLT

 

 

(SPECIAL)

02544

 

 

MANDREL

 

 

 

 

ASSEMBLY

FIG. 8

TO SHARPEN BLADE (See Fig. 9)

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

Care should be taken to keep the blade balanced. An un- balanced blade will cause excessive vibration and eventual damage to mower and engine.

•The blade can be sharpened with a fi le or on a grind- ing 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 balancer.)

NOTE: Do not use a nail for balancing blade. The lobes of the center hole may appear to be centered, but are not.

•Slide blade on to an unthreaded portion of the steel bolt or pin and hold the bolt or pin parallel with the ground. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced.

16

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Murray MB12538LT manual Tractor, Blade Removal See Fig, To Sharpen Blade See Fig
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MB12538LT specifications

The Murray MB12538LT is a versatile and robust lawn mower designed for both residential and light commercial use. This model combines innovative technology with user-friendly features, making it an excellent choice for homeowners and landscaping professionals alike. One of the standout features of the MB12538LT is its powerful 125cc engine, which provides ample power to tackle tough mowing conditions. The engine is designed for efficiency, ensuring that users can cover more ground with less fuel consumption.

Another significant characteristic of the Murray MB12538LT is its cutting deck. With a 38-inch cutting width, it allows for efficient mowing of medium to large lawns. The deck is constructed from durable materials, ensuring longevity and resistance to wear and tear. Additionally, the mower offers multiple cutting heights, ranging from 1 inch to 3.5 inches, allowing users to customize their mowing experience based on the grass type and condition.

Murray has integrated advanced technologies into the MB12538LT to enhance user experience. The push-button start feature simplifies the starting process, eliminating the need for cumbersome pull cords. The mower also includes an ergonomic handle that can be adjusted for comfort, aiding users in maintaining a healthy posture while mowing.

One of the most appealing aspects of the MB12538LT is its lightweight design, which makes it easy to maneuver in tight spaces and around obstacles such as trees and flower beds. The rear-wheel drive system enhances traction, providing stability and control on slopes and uneven terrain.

Maintenance is straightforward with the Murray MB12538LT, as it is equipped with readily accessible components for easy oil changes and blade replacement. The mower's design includes a grass bagging option, allowing for efficient grass collection and disposal, which promotes a cleaner lawn and reduces the need for raking.

In summary, the Murray MB12538LT is an excellent choice for those seeking a reliable, easy-to-use lawn mower with essential features that promote efficiency and comfort. With its powerful engine, durable construction, and thoughtful design, it stands out in the crowded market of lawn care equipment. Whether you're a homeowner looking to maintain a tidy lawn or a professional landscaper in need of an efficient tool, the MB12538LT meets various mowing needs with reliability and performance.
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