MTD OEM-190-825 Operator's Manual download pdf (Page 21)

WARNING: Before servicing, repairing, or

inspecting, always disengage PTO, set

parking brake, stop engine and remove key to

prevent unintended starting.

Cutting Blades

WARNING: Be sure to shut the engine off,

remove ignition key, disconnect the spark plug

wire(s) and ground against the engine to

prevent unintended starting before removing

the cutting blade(s) for sharpening or

replacement. Protect your hands by using

heavy gloves when grasping the blade.

WARNING: Periodically inspect the blade

adapter and/or spindle for cracks or damage,

especially if you strike a foreign object.

Replace immediately if damaged

The blades may be removed as follows.

• Remove the deck from beneath the tractor, (refer to

Cutting Deck Removal on page 22) then gently flip the

deck over to expose its underside.

• Place a block of wood between the center deck

housing baffle and the cutting blade to act as a

stabilizer. See Figure 15.

Figure 15

• Use a 1-1/8" wrench to remove the hex flange nut

that secures the blade to the spindle assembly. See

Figure 15.

To properly sharpen the cutting blades, remove equal

amounts of metal from both ends of the blades along

the cutting edges, parallel to the trailing edge, at a 25°

to 30° angle.

Figure 16

IMPORTANT:

If the cutting edge of the blade has already

been sharpened, or if any metal separation is present,

replace the blades with new ones. See Figure 16.

It is important that each cutting blade edge be ground

equally to maintain proper blade balance. A poorly

balanced blade will cause excessive vibration and may

cause damage to the tractor and result in personal

injury.

IMPORTANT:

When replacing the blade, be sure to

install the blade with the side of the blade marked

‘‘Bottom’’ (or with a part number stamped in it) facing

the ground when the mower is in the operating position.

IMPORTANT:

Use a torque wrench to tighten the blade

spindle hex flange nut to between 70 lbs-ft and 90 lbs-ft.

Battery

The battery is sealed and is maintenance-free. Acid

levels cannot be checked and fluid can not be added.

• Always keep the battery cables and terminals clean

and free of corrosive build-up.

• After cleaning the battery and terminals, apply a

light coat of petroleum jelly or grease to both

terminals

• Always keep the rubber boot positioned over the

positive terminal to prevent shorting.

IMPORTANT:

If removing the battery, disconnect the

NEGATIVE (Black) wire from it’s terminal first, followed

by the POSITIVE (Red) wire. When re-installing the

battery, always connect the POSITIVE (Red) wire its

terminal first, followed by the NEGATIVE (Black) wire.

Be certain that the wires are connected to the correct

terminals; reversing them could change the polarity and

cause damage to your engine’s alternating system.

Spindle Assembly

Hex Flange Nut

Wood Block

1-5/8 inch (min.)

Seperation

Damaged Blade Edge

For Parts Call 606-678-9623 or 606-561-4983

www.mymowerparts.com

For Parts Call 606-678-9623 or 606-561-4983

www.mymowerparts.com

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MTD OEM-190-825 Operator's Manual Page 21

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