Poulan 191920 To Level Mower Housing, To Replace Mower Blade Drive Belt See Fig, Belt Removal

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SERVICE AND ADJUSTMENTS

TO LEVEL MOWER HOUSING

Adjust the mower while tractor is parked on level ground or driveway. Make sure tires are properly inflated (See “PRODUCT SPECIFICATIONS” section of this manual). If tires are over or underinflated, you will not properly adjust your mower.

SIDE-TO-SIDE ADJUSTMENT (See Figs. 18 and 19)

Raise mower to its highest position.

At the midpoint of both sides of mower, measure height from bottom edge of mower to ground. Distance “A” on both sides of mower should be the same or within 1/4" of each other.

If adjustment is necessary, make adjustment on one side of mower only.

To raise one side of mower, tighten lift link adjustment nut on that side.

To lower one side of mower, loosen lift link adjustment nut on that side.

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

Recheck measurements after adjusting.

BOTTOM EDGE

 

BOTTOM EDGE

OF MOWER TO

 

OF MOWER TO

GROUND

 

GROUND

A

GROUND LINE

A

FIG. 18

SUSPENSION ARM

LIFT LINK

ADJUSTMENT NUT

FIG. 19

FRONT-TO-BACK ADJUSTMENT (See Figs. 20and 21)

IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. IF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS NECESSARY, BE SURE TO ADJUST BOTH FRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO-SIDE.

To obtain the best cutting results, the mower housing should be adjusted so that the front is approximately 1/8" to 1/2" lower than the rear when the mower is in its high- est position.

Check adjustment on right side of tractor. Measure distance “D” directly in front and behind the mandrel at bottom edge of mower housing as shown.

Before making any necessary adjustments, check that both front links are equal in length.

If links are not equal in length, adjust one link to same length as other link.

To lower front of mower loosen nut “E” on both front links an equal number of turns.

When distance “D” is 1/8" to 1/2" lower at front than rear, tighten nuts “F” against trunnion on both front links.

To raise front of mower, loosen nut “F” from trunnion on both front links. Tighten nut “E” on both front links an equal number of turns. The two front links must remain equal in length.

When distance “D” is 1/8" to 1/2" lower at front than rear, tighten nut “F” against trunnion on both front links.

Recheck side-to-side adjustment.

MANDREL

“D”

“D”

FIG. 20

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

NUT “F”

NUT “E”

TRUNNION

FRONT LINKS

FIG. 21

TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 22)

The mower blade drive belt may be replaced without tools. Park the tractor on level surface. Engage parking brake.

BELT REMOVAL -

Remove mower from tractor (See “TO REMOVE MOWER” in this section of this manual).

Work belt off both mandrel pulleys and idler pulleys.

Pull belt away from mower.

BELT INSTALLATION -

Install new belt in reverse order of removal.

Make sure belt is in all pulley grooves and inside all belt guides.

Install mower in reverse order of removal instruc- tions.

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Contents PD18542STB Always Wear EYE Protection During OperationSafety Rules Safety Rules Table of Contents Contents of Hardware Pack Assembly Tools Required for AssemblyHOW to SET UP Your Tractor To Remove Tractor from CartonCheck Battery See Fig Assemble Gauge Wheels to Mower Deck See FigTo Convert to Bagging or Discharging Check Tire PressureCheck Deck Levelness Check for Proper Position of ALL BeltsOperation Know Your Tractor HOW to USE Your Tractor To Adjust Gauge Wheels See Fig To Operate Mower See FigTo Operate on Hills To TransportBefore Starting the Engine Check Engine OIL LevelADD Gasoline To Start Engine See FigMowing Tips Mulching Mowing TipsMaintenance Lubrication ChartGeneral Recommendations Before Each USETractor Engine Cleaning IN-LINE Fuel Filter See FigTo Remove Mower See Fig Service and AdjustmentsTo Install Mower See Fig To Level Mower Housing Belt InstallationTo Replace Mower Blade Drive Belt See Fig Belt RemovalTo Check and Adjust Brake See Fig Transaxle Gear Shift Lever NEUTRAL- Adjustment See FigTo Adjust Brake To Replace Motion Drive Belt See FigTo Adjust Steering Wheel ALIGN- Ment Replacing Battery See FigsFront Wheel TOE-IN/CAMBER To Attach Jumper CablesTo Adjust Throttle Control Cable To Adjust Choke ControlTo Adjust Carburetor To Replace Headlight BulbStorage OtherFuel System Engine OILTroubleshooting Points When operator leaves seat Limited Warranty Policy Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill Not Across Hill Degrees MAXParts and Service