Poulan 178500 To Adjust Attachment Clutch See Fig, To Adjust Brake See Fig, Belt Removal

Models: 178500

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SERVICE AND ADJUSTMENTS

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.

Reinstall mower to tractor (See “INSTALL MOWER AND DRIVE BELT” in the Assembly section of this manual).

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

L.H.

MOWER BLADE

DRIVE BELT CENTER

MANDREL

MANDREL

IDLER

PULLEY

R.H.

MANDREL

COVER

SECONDARY

IDLER ARM

SPRING

SWAY-BAR

BRACKET SCREW

FIG. 25

TO ADJUST ATTACHMENT CLUTCH (See Fig. 26)

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

If distance is other than 1-3/4", loosen jam nut and turn nut “A” until distance becomes 1-3/4". Retighten jam nut against nut “A”.

Road test tractor for proper stopping distance as stated above. Readjust if necessary. If stopping distance is still greater than six (6) feet in highest gear, further maintenance is necessary. Contact your nearest au- thorized service center/department.

WITH PARKING BRAKE “ENGAGED”

1-3/4"

NUT “A”

OPERATING

JAM NUT

ARM

 

FIG. 27

The electric clutch should provide years of service. The clutch has a built-in brake that stops the pulley within 5 seconds. Eventually, the internal brake will wear which may cause the mower blades to not engage, or, to not stop as required. Adjustments should be made by your nearest authorized service center/department.

Make sure attachment clutch and ignition switches are in “OFF” position.

Adjust the three nylon locknuts until space between clutch plate and rotor measures .012" at all three slot locations cut in side of brake plate.

NOTE: After installing a new electric clutch, run tractor at full throttle and engage and disengage electric clutch 10 cycles to wear in clutch plate.

 

CLUTCH PLATE

.012"

 

 

ROTOR

SLOT (3)

 

 

BRAKE

NYLON

 

LOCKNUT (3)

 

PLATE

FIG. 26

TO ADJUST BRAKE (See Fig. 27)

Your tractor is equipped with an adjustable brake system which is mounted on the left 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. 22

TO REPLACE MOTION DRIVE BELT (See Fig. 28)

Park the tractor on level surface. Engage parking brake. For ease of service there is a belt installation guide decal on bottom of left footrest. It is not necessary to remove mower.

BELT REMOVAL -

Engage parking brake (creates slack in belt).

Remove mower drive belt from electric clutch pulley only (See “TO REPLACE MOWER DRIVE BELT” in this section of this manual).

Roll motion drive belt off transaxle pulley.

Roll belt off clutching idler pulleys, then off engine pulley and front V-idler pulley.

Pull belt out of all belt keepers.

BELT INSTALLATION -

Place V part of belt into grooves on engine pulley and front V-idler, making sure to route belt inside of belt keepers.

Put belt coming from V-idler above midspan belt keeper, then onto clutching idler pulleys as shown.

Make sure V part of belt engages V-idler.

Place belt around transaxle pulley, beginning at top. V part of belt should engage transaxle pulley.

Place long lower section of belt through loop in midspan belt keeper.

Check to be sure belt is on proper side of all belt keepers.

Reinstall mower drive belt onto electric clutch pulley.

IMPORTANT: CHECK BRAKE ADJUSTMENT.

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Poulan 178500 To Adjust Attachment Clutch See Fig, To Adjust Brake See Fig, To Replace Motion Drive Belt See Fig

178500 specifications

The Poulan 178500 is a powerful and versatile string trimmer that caters to the needs of both professional landscapers and homeowners looking for an efficient lawn maintenance tool. Known for its robust design and user-friendly features, the Poulan 178500 stands out in the market of outdoor power equipment.

One of the main features of the Poulan 178500 is its potent 17cc, 2-cycle engine. This engine delivers a strong performance, allowing users to tackle tough grass, weeds, and overgrown areas with ease. The 2-cycle technology ensures that the trimmer is not only powerful but also lightweight, making it easier to maneuver during extended use. Users will benefit from a balanced weight distribution, which minimizes user fatigue.

Equipped with a dual-line cutting head, the Poulan 178500 ensures efficient cutting performance. The dual-line system offers a wider cutting path, enabling greater coverage with each pass. This feature is especially beneficial for larger yards or heavily landscaped areas, as it reduces the time spent on trimming tasks. Additionally, the trimmer utilizes a bump-feed line advancement system, allowing users to easily release more line with a simple tap on the ground, keeping productivity high without interruptions.

The ergonomic design of the Poulan 178500 enhances user comfort and usability. It boasts cushioned grips that reduce vibration and improve handling. Furthermore, the adjustable handle allows users to customize the position for optimal control, making trimming at various angles easier and more efficient.

Another remarkable characteristic of the Poulan 178500 is its ease of starting. The trimmer is equipped with a simplified starting mechanism, minimizing the effort required to get the engine running. This feature is particularly advantageous for those who may struggle with traditional starting methods.

For added convenience, the Poulan 178500 features a lightweight frame, making it one of the more portable options in the string trimmer market. This ease of transport and storage ensures that users can easily move from one area of their property to another without hassle.

In summary, the Poulan 178500 is a high-performance string trimmer that merges power, comfort, and user-friendly technology. Its robust engine, dual-line system, ergonomic design, and easy starting mechanism make it an excellent choice for anyone seeking a reliable and efficient lawn maintenance tool. Whether for professional landscaping or routine yard care, the Poulan 178500 is built to meet diverse trimming demands while delivering excellent results.