HS81 CUT-OFF SAW Blades, Diamond Blade | Multiquip specification

PREPARATION / PRE-INSPECTION

1.Read and fully understand this manual, the safety instructions in particular, and the engine manufacturer's manual supplied with the saw.

2.Select the correct blade for each application. If abrasive blades are used, MAKE CERTAIN they are designed for use on a concrete floor saw. They must be reinforced and have a hole for the driving pin. When wet cutting with an abrasive blade, MAKE CERTAIN the blade is intended for wet cutting. Water will destroy a dry cut abrasive blade. Some diamond blades require water cooling and failure to do so will destroy them almost immediately. Other diamond blades can be used with or without water.

3.Handle all blades with care and NEVER use a damaged blade. NEVER use an abrasive blade that has been dropped.

BLADES

Saw blades, or cutting disks, are available in either an abrasive design or as diamond blades. Either blade will work on the HS81CUT-OFFSAW,however,diamondbladesare recommended. Ask your dealer about your specific cutting application.

SAW BLADE INSPECTION

WARNING

Failure to thoroughly inspect the diamond blade (Figure 21) for operational safety could result in damage to the blades or the saw and may cause injury to the user or others in the operating area.

1.Stress Relief Holes (Gullets) - Check the steel core for cracks that may have propagated from the slots and/or gullets. Cracks indicate extreme fatigue failure and if sawing continues, catastrophic failure will occur.

HS81 CUT-OFF SAW — BLADES

Figure 21. Diamond Blade

2.Edge of the Steel Core - Check the diameter edge for discoloration (blue oxidation) indicating an overheating condition caused by insufficient cooling water/air. Overheating of blades may lead to loss of core tension and/ or increase the possibility for blade failure. Make sure the steel core's width is uniform about the rim of the blade, and not succumbing to an "under-cutting" condition brought about by highly abrasive material or improper under-cutting core protection

3.Directional Arrow - Ensure that the blade is oriented properly on the blade shaft for sawing. Reference the directional arrow on the blade and place it so the direction of rotation "downcuts" with the turn of the shaft.

4.Diamond Segment or Rim - Ensure there are no cracks, dings, or missing portions of the diamond segment/rim. DO

NOT use a blade that is missing a segment or a portion of the rim. Damaged and /or missing segments/rims may cause damage to your saw or injury to the user or others in the operating area.

5.Specifications - Ensure that the blade specifications, size, and diameter properly match up to sawing operations. Utilizing a blade not matched properly to the task may result in poor performance and/or blade damage.

6.Arbor Hole - It is essential that the arbor hole diameter properly matches the blade, and that it is free from distortion. Correct blade flanges (collars) must be used. The inside face of the flanges must be clean and free of debris. An out- of-round arbor condition will cause damage to the blade and the saw.

7.MAX RPM - This RPM reference is the maximum safe operating speed for the blade selected. NEVER exceed the max RPM on the diamond blade. Exceeding the maximum RPM is dangerous and may cause poor performance and may damage the blade.

PAGE 22 — HS81 CUT-OFF SAW — OPERATION & PARTS MANUAL — REV. #4 (09/12/05)

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.