Ariens Pro 21 Specifications download pdf (Page 16)

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CHECK ENGINE/BLADE

CONTROL

The engine and blade must stop within 3

seconds after releasing the control. If the

engine and blade continue to run, adjust or

repair control immediately. See

ENGINE/BLADE CONTROL ADJUSTMENT

on page 21.

CHECK WHEEL DRIVE CONTROL

(self-propelled models)

The unit must stop quickly and completely

when the control is released. Adjust or repair

if necessary. See WHEEL DRIVE CONTROL

ADJUSTMENT (self-propelled models) on

page 21.

CHECK GRASS BAG (IF

EQUIPPED)

Check grass bag frequently for wear or

deterioration. Replace worn or damaged bag

with Ariens original equipment replacement

bag only.

CLEAN UNIT

Before each use clean unit, muffler and

engine surfaces of debris, oil or fuel spills to

ensure proper cooling and prevent fires.

Do not spray the unit with water, especially

when the unit is warm from operation. Water

can seep into bearings and damage them.

CHECK ENGINE OIL

IMPORTANT: Maintain proper oil level at all

times or engine damage will result.

Check the level of the engine crankcase oil

before each use.

Make sure engine is level when checking oil.

See engine manual for instructions.

CHECK MOWER BLADE

See Figure 12.

Check blade mounting: blade must be secure

and bolt torqued to 37.5 - 50 lbf-ft

(51-68 N•m) (bolt should fully compress lock

washer).

Check blade for nicks and dull cutting edges.

Sharpen if necessary.

Check blade for rounded or broken ends,

thinned metal or other damage. Replace if

necessary.

NOTE: Blades should be sharpened and

balanced professionally. Contact your Ariens

Dealer.

To remove blade:

1. Stop engine, wait for all moving parts to

stop, and disconnect spark plug wire.

2. Block blade to prevent rotation.

3. Remove bolt, lock washer, flat washer

and blade from shaft.

To install blade:

1. Replace blade, flat washer, lock washer

and bolt on shaft.

2. Torque bolt to 37.5 - 50 lbf-ft

(51-68 N•m) (bolt should fully compress

lock washer).

3. Connect spark plug wire.

Sharpen the Mower Blades

1. Remove mower blade from unit.

Discard mower blade if:

• More than 1/2 in. (1.27 cm) of metal is

removed.

• Air lifts become eroded.

• Blade is bent or broken.

2. Sharpen mower blade by removing an

equal amount of material from each end

of mower blade. DO NOT change angle

of cutting edge or round the corner of the

mower blade.

CAUTION: DO NOT sharpen

mower blades while on unit. An

imbalanced mower blade will

cause excessive vibration and

eventual damage to unit. Check

mower blade balance before

reinstalling blades.

NEVER weld or straighten bent

blades.

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