Remington 18A-212B783 Owner's Manual download pdf (Page 17)

Blade Installation

Place the cutting blade, locking plates, and blade nut on 1.

the motor shaft and thread the blade bolt in finger tight.

See Fig. 7-1.

NOTE: Make certain to replace the parts in the exact order

in which they were removed. When installing the cutting

blade, be sure it is installed with the curved ends pointing

towards the mower deck and not towards the ground.

Torque the blade bolt down using a torque wrench to 2.

assure the bolt is tightened properly. The recommended

torque for the blade bolt is 240-280 in. lbs.

WARNING: The blade hardware is not only used to

attach the blade assembly, but is also an insulated

safety device and should never be altered in any

way. If replacement is necessary, use original

equipment parts as shown in the parts list.

To insure safe operation of your unit, all nuts and bolts must be

checked periodically for correct tightness.

Blade Sharpening

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. See Fig. 7-2.

NOTE: 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 mower and result in personal injury. The blade can be tested

by balancing it on a round shaft screwdriver. Grind metal from

the heavy side until it balances evenly.

Blade Care

WARNING: When removing the cutting blade for

sharpening or replacement, protect your hands with

a pair of heavy gloves or use a heavy rag to hold the

blade. Be certain to disconnect the power supply.

Periodically inspect the blade assembly for cracks, especially if

you strike a foreign object. Replace when necessary. Follow the

steps below for blade service.

Stop the motor and remove the safety key from the battery. 1.

With the battery handle locked or with the battery 2.

removed, turn the mower on its side.

Use a block of wood between blade and mower deck to 3.

prevent the blade from turning when the bolt is removed.

Loosen and remove the blade nut, locking plates, and 4.

blade. See Fig. 7-1.

The blade can be sharpened with a file or on a grinding 5.

wheel. Do not attempt to sharpen the blade while it is still

on the mower. When sharpening the blade, follow the

original angle of grind and grind each cutting edge equally

to keep the blade balanced. Balance the blade on a round

shaft screwdriver. Remove metal from the heavy side until

it balances evenly.

WARNING: An unbalanced blade will cause

excessive vibration when rotating at high speeds. It

may cause damage to mower, and could break

causing personal injury.

Figure 7-1

Figure 7-2

Service

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Remington 18A-212B783 Owner's Manual Page 17

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