HS81 CUT-OFF SAW — TROUBLESHOOTING (ENGINE)

TABLE 4. TROUBLESHOOTING (ENGINE, CONTINUED)

SYMPTOM

POSSIBLE CAUSE

SOLUTION

 

 

 

 

Air cleaner not clean?

Clean or replace air cleaner.

 

 

 

 

 

Check float adjustment.

"Weak in power" compression is proper

Improper fuel level in carburetor?

 

Rebuild carburetor.

and does not misfire.

 

 

 

 

Defective spark plug?

Clean or replace spark plug.

 

 

 

 

Improper spark plug gap?

Set to proper gap.

 

 

 

 

Water in fuel system?

Flush fuel system and replace

 

with correct type fuel.

 

 

"Weak in power" compression is proper

 

 

Ignition coil defective?

Replace ignition coil.

but misfires.

 

 

 

 

Dirty spark plug?

Clean or replace spark plug.

 

 

 

 

Wrong fuel type?

Flush fuel system, and replace

 

with correct type of fuel.

 

 

 

 

 

Engine overheats.

Spark plug heat value improper?

Replace with correct type of

 

spark plug.

 

 

 

 

 

 

Cooling fins dirty?

Clean cooling fins.

 

 

 

 

Governor adjusted correctly?

Adjust governor.

 

 

 

Rotational speed fluctuates.

Governor spring defective or missing?

Replace governor spring.

 

 

 

Fuel flow restricted?

Check entire fuel system for

 

leaks or clogs.

 

 

 

 

 

 

Recoil mechanism clogged with dust and

Clean recoil assembly with soap

Recoil starter malfunction.

dirt?

and water.

 

 

 

Spiral spring loose?

Replace spiral spring.

 

 

 

PAGE 28 — HS81 CUT-OFF SAW — OPERATION & PARTS MANUAL — REV. #4 (09/12/05)

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Multiquip HS81 manual Troubleshooting Engine

HS81 specifications

The Multiquip HS81 is a high-performance, state-of-the-art concrete screed that has become a go-to equipment for contractors seeking efficiency and precision in surface finishing tasks. Designed with the professional contractor in mind, the HS81 excels in leveling and smoothing concrete surfaces, making it an essential tool for large scale construction projects.

One of the most notable features of the HS81 is its lightweight yet robust design. Weighing in at only 82 pounds, this screed can be easily handled by one person, allowing for efficient workflow without compromising strength and durability. Its aluminum frame is engineered to withstand harsh working conditions while ensuring longevity, reducing the need for frequent replacements or repairs.

The HS81 is equipped with a powerful 4-cycle engine, which delivers exceptional torque and performance. This engine is not only reliable but also fuel-efficient, enabling extended operation without the need for constant refueling. The screed features an adjustable handle that can be easily tailored to suit the operator's height, enhancing comfort during prolonged use.

In terms of technology, the HS81 incorporates advanced vibration control to produce a smooth and even finish. The screed’s unique vibration design minimizes the likelihood of concrete segregation, ensuring a consistent level of compaction throughout the surface. This innovative approach contributes to the screed's performance in achieving a professional-grade finish.

The HS81 also includes interchangeable strike-off blades, which can accommodate different types of concrete mixes and surface finishes. Whether a contractor is working with standard mixes or specialized formulas, the versatility of blade options allows them to achieve the desired results efficiently.

Another characteristic that sets the HS81 apart is its user-friendly design. The intuitive controls simplify operation, allowing even less experienced operators to achieve excellent results. Additionally, the maintenance requirements for the HS81 are minimal, meaning contractors can spend more time on the job site and less time troubleshooting equipment issues.

In summary, the Multiquip HS81 concrete screed stands out in the marketplace due to its lightweight design, powerful engine, advanced vibration control technology, and user-friendly features. It is a versatile, efficient, and reliable tool that helps contractors deliver outstanding results in concrete surface finishing, making it an invaluable asset to any construction crew.