Poulan 178379 To Replace Mower Blade Drive Belt See Fig, To Adjust Brake See Fig, Belt Removal

Page 20

SERVICE AND ADJUSTMENTS

•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.

SUSPENSION ARM

LIFT LINK ADJUSTMENT NUT

FIG. 19

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

•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. 20

20

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

NUT "E"

NUT "F"

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 instructions.

MANDREL PULLEY IDLER PULLEYS

MANDREL

PULLEY

FIG. 22

TO ADJUST BRAKE (See Fig. 23)

Your tractor is equipped with an adjustable brake system which is mounted on the side of the transaxle.

If tractor requires more than six (6) feet stopping distance at high speed in highest gear on a level dry concrete or paved surface, then brake must be adjusted.

•Depress clutch/brake pedal and engage parking brake.

•Measure distance between brake operating arm and nut “A” on brake rod.

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Contents Model NO. PO165H42C IV. Service Safe Operation Practices for Ride-On MowersGeneral Operation II. Slope OperationTable of Contents Product Specifications Customer ResponsibilitiesUnassembled Parts Steering Wheel SeatKey Slope SheetAssembly Tools Required for AssemblyHOW to SET UP Your Tractor To Remove Tractor from CartonInstall Seat See Fig Lower seat into operating position and sit on seatCheck Tire Pressure Check Deck LevelnessCheck for Proper Position of ALL Belts Check Brake SystemOperation Know Your Tractor HOW to USE Your Tractor To Adjust Gauge Wheels See Fig To Operate Mower See FigTo Operate on Hills To Transport See FigsBefore Starting the Engine Check Engine OIL LevelADD Gasoline To Start Engine See FigMowing Tips Before Each USE Customer ResponsibilitiesGeneral Recommendations Tractor Engine Spark Plugs CleaningMuffler Service and Adjustments To Level Mower HousingTo Install Mower See Fig To Remove Mower See FigTo Adjust Brake See Fig Belt InstallationTo Replace Mower Blade Drive Belt See Fig Belt RemovalTransaxle Motion Control Lever Neutral Adjustment See Fig Transmission REMOVAL/REPLACEMENTTo Adjust Steering Wheel Alignment To Replace Motion Drive Belt See FigTo Start Engine with a Weak Battery See Fig Replacing Battery See FigsTo Remove Wheel for Repairs See Fig To Attach Jumper CablesTo Adjust Carburetor To Replace Headlight BulbInterlocks and Relays To Replace FuseStorage OtherFuel System Engine OILTroubleshooting Points OFF Schematic Tractor - Model Number PO165H42CElectrical KEY Part NO. NO. Description Chassis and Enclosures KEY Part Description Drive Repair Parts Steering Assembly KEY Part NO. NO. Description Engine KEY Part Description Seat Assembly Decals Wheels & TiresMower Lift Nut Lock w/Wsh 1/2-13 Unc Mower Deck Repair Parts Service Notes Service Notes Limited Warranty Suggested Guide for Sighting Slopes for Safe Operation Only Ride UP and Down Hill

178379 specifications

The Poulan 178379 is a powerful and efficient chainsaw designed for both professional and home use. Known for its reliability, this chainsaw is ideal for a variety of tasks, including cutting firewood, trimming trees, and handling larger landscaping projects.

One of the standout features of the Poulan 178379 is its robust engine. With a displacement of 42cc, the chainsaw delivers strong performance and provides the necessary power to tackle tough cutting jobs with ease. The two-stroke engine operates efficiently, allowing for a smooth experience during operation.

The chainsaw is also equipped with a 16-inch guide bar, which offers optimal cutting length while maintaining maneuverability. This length is perfect for handling mid-sized branches and logs, making it a versatile choice for different cutting needs. The bar is paired with a chain that boasts a low kickback design, enhancing safety during use and reducing the likelihood of accidents.

In terms of technology, the Poulan 178379 incorporates advanced features to enhance user experience. It comes with an easy-to-use start system that minimizes the effort needed to start the chainsaw, making it accessible for users of all skill levels. The chainsaw also features an automatic oiler system, which ensures that the chain remains lubricated during operation, thereby extending the life of both the chain and the bar.

Another characteristic that sets the Poulan 178379 apart is its lightweight design. Weighing in at approximately 10 pounds, it is easy to handle for extended periods, reducing fatigue for the user. Additionally, the chainsaw has ergonomic handles that provide a comfortable grip, allowing for better control while cutting.

Maintenance is straightforward with the Poulan 178379. The design includes a tool-free chain tensioning system, enabling users to easily adjust chain tension without the need for additional tools. This feature not only saves time but also encourages regular maintenance, ensuring optimal performance over the lifespan of the chainsaw.

Overall, the Poulan 178379 combines power, efficiency, and user-friendly features, making it an excellent choice for anyone in need of a reliable chainsaw for both professional and recreational use. Its advanced technologies, lightweight design, and ease of maintenance make it a top contender in the competitive chainsaw market.
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