SERVICE AND ADJUSTMENTS

To obtain the best cutting results, the mower housing should be adjusted so 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 “F” directly in front of 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 housing, loosen nut “G” on both front links an equal number of turns.

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

•To raise front of mower housing, loosen nut “H” from trunnion on both front links. Tighten nut “G” on both front links an equal number of turns.

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

NOTE: Each full turn of nut “G” will change dim. “F” by approximately 3/8".

•Recheck side-to-side adjustment.

“F”

GROUND LINE

“F”

FIG. 22

BOTH FRONT LINKS SHOULD BE EQUAL IN LENGTH

NUT “G”

NUT “H”

TRUNNION

FRONT LINKS

FIG. 23

TO REPLACE MOWER DRIVE BELT

MOWER DRIVE BELT REMOVAL (See Fig. 24) -

•Park tractor on a level surface. Engage parking brake.

•Remove screws from L.H. mandrel cover and remove cover.

•Roll belt over the top of L.H. mandrel pulley.

•Remove belt from electric clutch pulley.

•Remove belt from idler pulleys.

•Remove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck surface.

•Check primary idler arm and two idlers to see that they rotate freely.

•Be sure spring is securely hooked to primary idler arm and bolt in mower housing.

MOWER DRIVE BELT INSTALLATION (See Fig. 24) -

•Install belt in both idlers. Make sure belt is in both belt keepers at the idlers as shown.

•Install new belt onto electric clutch pulley.

•Roll belt into upper groove of L.H. mandrel pulley.

•Carefully check belt routing making sure belt is in the grooves correctly and inside belt keepers.

•Reassemble L.H. mandrel cover.

L.H.

SCREWS

ELECTRIC

MANDREL

 

CLUTCH

COVER

 

PULLEY

 

IDLER

 

 

PULLEYS

 

 

 

MOWER

 

 

DRIVE

L.H.

 

BELT

 

 

MANDREL

 

 

PRIMARY

 

 

IDLER ARM

 

 

 

BELT

 

 

KEEPERS

 

FIG. 24

TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 25)

Park the tractor on level surface. Engage parking brake.

•Remove mower drive belt (See “TO REPLACE MOWER DRIVE BELT” in this section of this manual).

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

•Remove screws from R.H. mandrel cover and remove cover. Unhook spring from bolt on mower housing.

•Carefully roll belt off R.H. mandrel pulley.

•Remove belt from center mandrel pulley, idler pulley, and L.H. mandrel pulley.

•Remove any dirt or grass which may have accumulated around mandrels and entire upper deck surface.

•Check secondary idler arm and idler to see that they rotate freely.

•Be sure spring is hooked in secondary idler arm and sway-bar bracket.

•Install new belt in lower groove of L.H. mandrel pulley, idler pulley, and center mandrel pulley as shown.

•Roll belt over R.H. mandrel pulley. Make sure belt is in all grooves properly.

•Reconnect spring to bolt in mower housing and reinstall R.H. mandrel cover.

21

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Image 21
Poulan 177271 To Replace Mower Drive Belt, To Replace Mower Blade Drive Belt See Fig, Recheck side-to-side adjustment
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177271 specifications

The Poulan 177271 is a robust and versatile chainsaw designed for both professionals and avid DIY enthusiasts. With an emphasis on durability and performance, this chainsaw stands out for its ability to tackle a variety of cutting tasks, from pruning trees to felling larger timber.

One of the key features of the Poulan 177271 is its powerful engine. Equipped with a reliable two-stroke engine, it delivers ample power for demanding jobs while maintaining a lightweight profile for easy maneuverability. The engine's design focuses on efficiency, providing strong performance without excessive fuel consumption, making it a cost-effective choice for users who need to work for extended periods.

The 177271 model also incorporates advanced technologies that enhance user experience and operational safety. The chainsaw features an automatic oiling system, which ensures the chain is adequately lubricated during use, reducing wear and extending the life of the chain and bar. This system provides peace of mind to users, as it minimizes maintenance and allows for more uninterrupted cutting.

Another notable characteristic of the Poulan 177271 is its ergonomic design. The chainsaw comes with a comfortable handle that is designed to reduce vibrations during operation, allowing for longer usage without fatigue. The balanced body design helps in maintaining control while cutting at different angles, enhancing user safety and precision.

Safety features are also a key consideration in the Poulan 177271’s design. It includes a chain brake that automatically stops the chain in the event of kickback, providing an additional layer of protection for the operator. The handguard is strategically placed to prevent accidental chain activation, making it a suitable option for both inexperienced and seasoned users.

In summary, the Poulan 177271 chainsaw combines power, efficiency, and safety in a user-friendly design. Its strong two-stroke engine, automatic oiling system, ergonomic handling, and advanced safety features make it an ideal choice for a wide range of cutting applications. Whether used for light pruning or heavier forestry tasks, the Poulan 177271 provides reliable performance that users can depend on for their outdoor projects.
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