SERVICE AND ADJUSTMENTS

IDLER PULLEYS

MANDREL PULLEYS

FIG. 20

TO CHECK AND ADJUST BRAKE (See Fig. 21)

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

If tractor requires more than five (5) feet to stop at highest speed in highest gear on a level, dry concrete or paved surface, then brake must be checked and adjusted.

TO CHECK BRAKE

•Park tractor on a level, dry concrete or paved surface, depress clutch/brake pedal all the way down and en- gage parking brake.

•Place gear shift lever in neutral (N) position.

The rear wheels must lock and skid when you try to manually push the tractor forward. If the rear wheels rotate, the brake needs to be adjusted or the pads need to be replaced.

TO ADJUST BRAKE

•Depress clutch/brake pedal all the way down and en- gage parking brake.

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

•If distance is other than 1-1/2", loosen jam nut and turn nut “A” until distance becomes 1-1/2". 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 five (5) feet in highest gear, further maintenance is necessary. Replace brake pads or contact a qualified service center.

WITH PARKING BRAKE “ENGAGED”

1-1/2"

NUT “A”

JAM NUT

OPERATING ARM

TO REPLACE MOTION DRIVE BELT (See Fig. 22)

Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest.

BELT REMOVAL -

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

NOTE: Observe entire motion drive belt and position of all belt guides and keepers.

•Remove belt from stationary idler and clutching idler.

•Remove belt downward from around engine pulley.

•Pull belt slack toward rear of tractor. Remove belt upwards from transaxle pulley by deflecting belt keep- ers.

•Remove belt from center span keeper and pull belt away from tractor.

BELT INSTALLATION -

•Carefully work new belt down between transaxle belt keepers and onto the input pulley.

•Slide belt into the center span keeper.

•Pull belt toward front of tractor and roll around the top groove of engine pulley.

•Install belt through stationary idler and clutching idler.

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

•Install mower (See “TO INSTALL MOWER” in this sec- tion of manual).

ENGINE

PULLEY

CLUTCHING

IDLER

STATIONARY

IDLER

CENTER SPAN

KEEPER

TRANSAXLE

PULLEY

FIG. 22

TRANSAXLE GEAR SHIFT LEVER NEUTRAL- ADJUSTMENT (See Fig. 23)

The transaxle should be in neutral when the gear shift lever is in neutral (N) (lock gate) position. The adjustment is preset at the factory; however, if adjustment is needed, proceed as follows:

•Make sure transaxle is in neutral (N).

NOTE: When the tractor rear wheels move freely, the

FIG. 21

20

transaxle is in neutral.

 

 

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Page 20
Image 20
Poulan 188870 To Check and Adjust Brake See Fig, To Replace Motion Drive Belt See Fig, To Check Brake, To Adjust Brake
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188870 specifications

The Poulan 188870 is a powerful and versatile chainsaw designed for both professionals and avid gardeners. Engineered for cutting through various types of wood, from hardwoods to softwoods, the Poulan 188870 showcases a combination of performance and ease of use.

One of the standout features of the Poulan 188870 is its robust engine. It incorporates a 18-inch bar and chain that delivers the necessary power for trimming branches, felling small trees, and cutting firewood. The chainsaw is powered by a reliable 50cc two-stroke engine, which is known for its efficiency and ability to handle tough tasks with minimal downtime.

The design of the Poulan 188870 includes advanced technologies aimed at improving user experience. The chainsaw is equipped with an easy-start feature, allowing for a hassle-free ignition. This saves precious time, particularly in situations where quick operation is essential. The Automatic Oiling System ensures that the chain is adequately lubricated during operation, enhancing performance and extending the lifespan of the bar and chain.

Safety is a significant consideration in the design of the Poulan 188870. It features a chain brake that activates in case of kickback, significantly reducing the risk of accidents. Additionally, with its ergonomic handle, the chainsaw is not only comfortable to hold but also minimizes vibrations, making operations smoother and reducing fatigue during prolonged use.

Another attractive characteristic of the Poulan 188870 is its lightweight construction. Weighing just over 12 pounds, it is relatively easy to maneuver, making it suitable for all-day use without causing excessive strain on the user. This is particularly beneficial for homeowners who may not have extensive experience with power tools.

In terms of maintenance, the Poulan 188870 makes it easy for users to perform routine checks and repairs. The accessible air filter and spark plug facilitate straightforward servicing, which is essential for keeping the chainsaw in optimal working condition.

Overall, the Poulan 188870 combines power, efficiency, and safety features that cater to a wide range of users. It stands out as a reliable choice for anyone in need of a dependable chainsaw for gardening or lumber work. Its balance of performance and user-friendly characteristics makes it a favorite among chainsaw enthusiasts.
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