SERVICE AND ADJUSTMENTS

With a 3/4" or adjustable wrench, turn lift link ad- justment nut (A) to the left to lower the mower, or, to the right to raise the mower.

NOTE: Each full turn of adjustment nut will change mower height about 3/16".

A

Turn nut right

Turn nut left

to raise mower

to lower

02948

FIG. 28

Test your adjustment by mowing some uncut grass and visually checking the appearance. Readjust, if necessary, until you are satisfied with the re- sults.

PRECISION SIDE-TO-SIDE ADJUSTMENT (See Fig. 29)

With all tires properly inflated, park tractor on level ground or driveway.

CAUTION: Blades are sharp. Protect your hands with gloves and/or wrap blade with heavy cloth.

Raise mower to its highest position.

At both sides of mower, position blade at side and measure the distance (A) from bottom edge of blade to the ground. The distance should be the same on both sides.

If adjustment is necessary, see steps 2 and 3 in Visual Adjustment instructions above.

Recheck measurements, adjust if necessary until both sides are equal.

02966

A A

FIG. 29

FRONT-TO-BACK ADJUSTMENT (See Figs. 30 and 31)

IMPORTANT: Deck must be level side-to-side.

To obtain the best cutting results, the mower blades should be adjusted so the front tip is 1/8" to 1/2" lower than the rear tip when the mower is in its highest posi- tion.

CAUTION: Blades are sharp. Protect your hands with gloves and/or wrap blade with heavy cloth.

Raise mower to highest position.

Position any blade so the tip is pointing straight forward. Measure distance (B) to the ground at front and rear tip of the blade.

If front tip of blade is not 1/8" to 1/2" lower than the rear tip, go to the front of tractor.

With an 11/16" or adjustable wrench, loosen jam nut A several turns to clear adjustment nut B.

With a 3/4" or adjustable wrench, turn front link adjustment nut (B) clockwise (tighten) to raise the front of mower, or, counterclockwise (loosen) to lower the front mower.

02548

BB

FIG. 30

B

A

Tighten adjust nut

Loosen adjust

B to raise mower

nut

 

02950

B to lower

Loosen jam nut A

 

FIG. 31

NOTE: Each full turn of the adjustment nut will change mower height about 1/8".

Recheck measurements, adjust if necessary until front tip of blade is 1/8" to 1/2" lower than the rear tip.

Hold adjustment nut in position with wrench and tighten jam nut securely against adjustment nut.

21

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Image 21
Poulan 417920 manual Precision SIDE-TO-SIDE Adjustment See Fig

417920 specifications

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