Poulan 178112 owner manual Recheck side-to-side adjustment

Page 21

SERVICE AND ADJUSTMENTS

SIDE-TO-SIDE ADJUSTMENT (See Figs. 19 and 20)

•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: Three full turns of adjustment nut will change mower height about 1/8".

•Recheck measurements after adjusting.

BOTTOM EDGE OF

BOTTOM EDGE OF

MOWER TO GROUND

MOWER TO GROUND

“A”

GROUND LINE

“A”

FIG. 19

SUSPENSION ARM

LIFT LINK ADJUSTMENT NUT

FIG. 20

FRONT-TO-BACK ADJUSTMENT (See Figs. 21 and 22)

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 highest 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. Both links should be approximately 10-3/8".

•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.

•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. 21

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

NUT "F"

NUT "E"

 

TRUNNION

 

 

FRONT LINKS

FIG. 22

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Contents PR20H42STC Safe Operation Practices for Ride-On Mowers Safety RulesBecome ALERT!!! Your Safety is IN- Volved Table of Contents Unassembled Parts Steering Wheel SeatSlope Sheet Tools Required for Assembly AssemblyHOW to SET UP Your Tractor To Remove Tractor from CAR- TONTo SET UP Your Mower for Mulching Install Seat See FigCheck Tire Pressure To Convert to Bagging or DISCHARG- INGCheck Deck Levelness Check for Proper Position of ALL BeltsOperation Know Your Tractor To USE Throttle Control see FIG HOW to USE Your TractorTo Operate Mower See Fig To Adjust Gauge Wheels See FigTo Operate on Hills To Transport See FigsTowing Carts and Other ATTACH- Ments Before Starting the EngineCheck Engine OIL Level ADD GasolinePurge Transmission Mowing TipsMulching Mowing Tips Customer Responsibilities General RecommendationsBefore Each USE Tractor Engine Cleaning Clean AIR INTAKE/COOLING AreasEngine OIL Filter MufflerTo Install Mower See Fig Service and AdjustmentsTo Level Mower Housing To Remove Mower See FigRecheck side-to-side adjustment Belt Installation To Adjust Brake See FigTo Replace Mower Blade Drive Belt See Fig To Replace Motion Drive Belt See FigTransaxle Motion Control Lever Neutral Adjustment See Fig Transmission REMOVAL/REPLACEMENTTo Adjust Steering Wheel Alignment Front Wheel TOE-IN/CAMBERReplacing Battery See Figs To Start Engine with a Weak Battery See FigTo Replace Headlight Bulb To Attach Jumper CablesTo Adjust Carburetor Interlocks and RelaysTo Replace Fuse Other StorageFuel System Engine OILTroubleshooting Points OFF Tractor - Model Number PR20H42STC SchematicElectrical KEY Part Description Chassis Screw Hex Wshd 8-18 x 7/8 Drive 39 74760648 Bolt 175461 Steering Assembly KEY Part NO. NO.DESCRIPTION Seat Assembly Wheels and Tires DecalsEngine Optional EquipmentSpark Arrester 170771 Control Throt Mower Deck Repair Parts Mower Lift 159460 Wire Asm Inner/Sprg W/plunger LT Limited Warranty Sighting Guide Suggested Guide for Sighting Slopes for Safe OperationParts and Service
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