Spark Arrester Screen Maintenance.

If the engine becomes sluggish and low on power, check and clean the spark arrester screen.

WARNING!

BURN DANGER! The engine will become very hot during normal operation. Let engine cool before servicing.

WARNING!

Never operate the unit with a dam- aged or missing muffler or spark arrester! Operating with a missing or damaged spark arrester is a fire hazard and could also damage your hearing.

1.

With a 3 mm hex wrench remove the

 

4 engine cover screws and the engine

 

cover. See Figure 28.

2.

With a 4 mm hex wrench remove the

Cover

Engine Cover

Screws

Muffler

Muffler

Gasket

Muffler

Bolts

 

 

Spark Arrester

 

 

Screen

 

PB2500.20

Spark Arrester

 

Cover

 

 

Figure 28

 

Cover Screws

ENGLISH

3 muffler bolts and the muffler.

See Figure 28.

3. With a small flat bladed screwdriver

remove the 2 screws holding the

spark arrester screen and cover to

the muffler. See Figure 28.

4.Remove the screen and clean it with a stiff bristle brush.

5.Inspect the cylinder exhaust port for any carbon buildup.

6.Reassemble the spark arrester, muffler and engine cover in the reverse order of disassembly.

IMPORTANT!

If you note excessive carbon buildup, consult with an authorized Shindaiwa servicing dealer.

300-hour Maintenance

Gearcase Lubrication

The gearcase should be filled with 60 cc (2.0 fl.oz.) of Mobil SHC634 Synthetic Gear Oil. A maximum of 75-80 cc can be used, but never to exceed 80 cc. Opera- tion with excessive oil level will result in high operating temperatures. Do not

overfill!

PB2500.21

Figure 29

Replacing the gearcase oil

WARNING!

BURN DANGER! The gearcase will be extremely hot after use!

1.Disconnect spark plug wire at engine.

2.Remove the LH Drum and axle assembly (as viewed from the operat- ing position). Wipe the sideplate clean and remove four screws (it is not necessary to remove the gearcase from the outer tube).

3.Turn gearcase side plate to break the seal and lift the plate from the gear- case. See Figure 29.

NOTE:

It may be necessary to use a heat gun to soften the sealer material.

4.Turn the gearcase to the LH side and allow all used gearcase oil to drain into a small container and properly dispose of as in accordance with your local regulations.

5.Place the gearcase on the RH side and supported so the outer tube is parallel to the ground. Refill the gearcase with 60 cc (2.0 fl.oz) of Mobil SHC634 Synthetic Gear Oil to the bottom of the chamfer on the output gear. The

Fill to

this level

PB2500.22

Figure 30

correct oil depth is 5/8" (15.5 mm). See Figure 30. DO NOT OVERFILL!

6.Inspect the sideplate for damage and clean off all remaining liquid gasket material with brake cleaner or acetone. Coat the outer sealing flange of the sideplate with Loctite Ultragrey Silicon Sealant or Threebond No. 1104 Liquid Gasket.

7.Replace the cover and install the four sideplate screws. Tighten securely.

8.Reinstall the drum and axle assembly per the sweeper assembly instructions. See page 9.

15

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Shindaiwa 80732, PB2500 manual Spark Arrester Screen Maintenance, Gearcase Lubrication, Replacing the gearcase oil
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PB2500, 80732 specifications

The Shindaiwa PB2500 is a high-performance backpack blower designed for both professionals and homeowners seeking efficiency in yard maintenance. This model is particularly celebrated for its balance of power, durability, and user comfort, making it an essential tool for tackling leaves, debris, and other outdoor challenges.

One of the standout features of the PB2500 is its powerful 23.9 cc two-stroke engine. This engine delivers a remarkable air volume of 470 cubic feet per minute (CFM) and an air speed of up to 145 miles per hour, providing ample force to handle even the toughest cleanup tasks. The engine is designed for easy starting, thanks to the advanced starting technology that minimizes resistance, allowing users to get to work quickly without the frustration often associated with outdoor power equipment.

In terms of ergonomics, the Shindaiwa PB2500 is engineered with user comfort in mind. The adjustable harness system distributes weight evenly across the shoulders, reducing fatigue during extended use. Additionally, the padded backrest and hip belt further enhance comfort, allowing users to operate the blower for longer periods without discomfort.

The PB2500 is also equipped with advanced anti-vibration technology, which significantly reduces operator fatigue. This feature is particularly important for professionals who spend hours operating their equipment. The blower's design minimizes vibrations transmitted to the user's body, promoting a more comfortable and efficient working experience.

Durability is another critical characteristic of the Shindaiwa PB2500. Constructed with high-quality materials, this blower is built to withstand the rigors of regular use. Its robust design ensures longevity, making it a smart investment for anyone needing an efficient and reliable blower.

Maintenance is straightforward, thanks to Shindaiwa's Engine Management System, which provides optimal performance while minimizing emissions. This technology helps the PB2500 operate efficiently while adhering to environmental standards, making it a more eco-friendly choice among similar devices.

In summary, the Shindaiwa PB2500 is a top-tier backpack blower that combines power, comfort, and durability. Its impressive engine performance, ergonomic design, and low vibration features make it suitable for both professional landscapers and residential users. Whether you are clearing debris from your lawn, garden, or driveway, the PB2500 stands out as a versatile and effective solution for outdoor cleanup tasks.
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