This manual describes the Hummer Series Vibrators, a range of power tools designed for concrete consolidation. These vibrators are primarily used to remove air bubbles from freshly poured concrete, ensuring a denser, stronger, and more uniform finish. The series includes various models, some powered by Honda engines and others by electric drills, offering flexibility for different job site requirements.
Function Description:
The core function of the Hummer Series Vibrators is to vibrate concrete, which causes entrapped air to rise to the surface and escape. This process, known as concrete consolidation, is crucial for preventing segregation of aggregates and achieving optimal strength and durability in concrete structures. The vibrators consist of a power unit (engine or drill), a flexible shaft, and a vibrating head. The power unit drives the flexible shaft, which in turn rotates an eccentric weight inside the vibrating head. This rotation generates high-frequency vibrations that are transmitted into the concrete.
Important Technical Specifications (based on available parts lists):
The Hummer Series offers a variety of configurations, primarily differing in their power units and vibrating head sizes.
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Power Units:
- HM300CH - Hummer Power Unit w/Honda Engine: This unit utilizes a Honda Engine-GX35 (MV65H) as its power source. It includes a shaft and strap assembly (HM300) and a Honda throttle control (MV61). Accessories like a shim stock (MV63), spline to cable adaptor (MV64), and tube spacer (MV73) are also part of this configuration.
- HM41H - Hummer Fish Pole Power Unit: Similar to the HM300CH, this unit also features a Honda Engine-GX35 (MV65H) and Honda throttle control (MV61). It includes a shaft and strap assembly (HM400) and a lift handle (HM5001).
- Electric Hummer Power Unit Assembly: This configuration uses a 28V Cordless Drill (M28DC) as its power source. It includes a stabilizer tube assembly (ST65), a cordless clamp assembly (M28CCA), a Hummer gearbox (H545GB), and a shoulder strap (HM301). The M28CCA drill clamp assembly consists of various clamps (SC155E-2, SC155E-1, SC156E-2, SC156E-1), washers (MV412, MV417), locking nut (MV411), and screws (MV414, MV320). The H545GB Hummer Gear Box Assembly includes components like box halves (GBWC, GBWOO), bearings (GB602), spur gear with shaft (GB2460), pinion gear (GB2411), casing adapter (GBCA), and various screws (GB125, PR211, MV302).
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Throttle Grip Assemblies:
- HM300 - Throttle Grip Assembly: This assembly is designed for the HM300CH power unit. It includes a 1" x 15.75" aluminum tubing (HM307), a 1" male fitting (HM308), a 14.5" star liner (HM302), a shoulder strap adapter (HM304-1), a shoulder strap (HM301), a 17" drive cable (HM303), and a 1/4-20 x .5 set screw (MV308).
- HM400 - Fish Pole Throttle Grip Assembly: This assembly is for the HM41H power unit. It features a 1" x 33.75" aluminum tubing (HM450), a 1" male fitting (HM308), a 31-1/2" star liner (HM452), a shoulder strap adapter (HM304-1), a shoulder strap (HM301), a 35" drive cable (HM451), and a 1/4-20 x .5 set screw (MV308).
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Vibrator Assemblies & Parts Lists (Vibrating Heads): The series offers various vibrating head sizes, each with specific components:
- HM212 - 2" x 12" Vibrator Assembly: Includes nose cap (MV210), bearing (MV220), eccentric weight (MV340), shell (MV330), and threaded cap (MV250).
- HM13412 - 1-3/4" x 12" Vibrator Assembly: Includes shell (MV430), bearing (MV220), nose cap (MV21034), threaded cap (MV25034), and eccentric weight (MV440).
- HM100 - 1" x 12" Vibrator Assembly: Includes eccentric weight (HM140), bearing (HM120), nose cap (HM110), shell (HM130), threaded cap (HM150), and female cable adaptor (HM180).
- MV800 - 2" x 8" Vibrator Assembly: Includes nose cap (MV210), bearing (MV220), eccentric weight (MV270), shell (MV260), and threaded cap (MV250).
- MV200 - 2" x 4" Vibrator Assembly: Includes nose cap (MV210), bearing (MV220), shell (MV230), eccentric weight (MV240), and threaded cap (MV250).
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Core & Casing Part Numbers: These refer to the flexible shaft and outer casing that connect the power unit to the vibrating head, available in various lengths for different head sizes:
- For 1" Head: 2' (HM1002) to 20' (HM1020) in 2-foot increments.
- For 1-3/4" & 2" Heads: 2' (HM002) to 20' (HM020) in 2-foot increments.
Usage Features:
- Safety First: The manual emphasizes general safety rules, including reading all instructions, saving instructions, and being aware of the work area. Users must avoid operating power tools in explosive atmospheres, keep bystanders away, and maintain control.
- Personal Safety: Operators are advised to stay alert, watch what they are doing, and avoid operating while tired or under the influence of drugs, alcohol, or medication.
- Dress Properly: Wear close-fitting clothing, long hair should be caught in moving parts, and loose jewelry should be avoided. Safety equipment such as eye protection, dust mask, non-skid safety shoes, hard hat, or hearing protection must be used.
- Proper Footing and Balance: Do not overreach; maintain proper footing and balance at all times to ensure better control of the tool.
- Tool Handling:
- Always keep hands and face away from the vibrating head when operating.
- Ensure hands are not wet when using corded or cordless vibrators.
- Use both hands for safe handling, especially when standing on a ladder.
- This tool is intended only for vibrating concrete; other uses may cause serious personal injury.
- Do not use the tool in a concrete mixer.
- Do not alter or modify the tool.
- Switch off the tool immediately if abnormal noise or something faulty occurs.
- Inspect the tool for breakage, cracks, or deformation before each operation.
- Be careful not to allow water, wet concrete, or the like to get into the engine compartment.
- Do not let the tool fall into wet concrete.
- Insert the vibrating head carefully between iron/steel frames.
- When using with reinforcing rods, use a rubber-coated vibrating head.
- Do not crush, twist, or overly bend the flexible hose.
- Use a wet cloth or the like to carefully wipe off any wet concrete left on the tool after use.
- Extra care should be given to thorough cleaning of the engine components.
- Do not operate this tool for long periods of time. Vibration caused by the operating action of this tool may cause permanent injury to fingers, hands, and arms. Use gloves to provide extra cushion, take frequent rest periods, and limit daily time of use.
- Operating Procedure:
- Hold the tool with both hands, firmly gripping the throttle control and the included lift handle or core casing.
- Insert the vibrating head vertically into the poured concrete.
- For best results, keep the vibrator head vertical at all times and avoid side-to-side movement.
- It is generally best to insert the vibrator head into and remove the vibrator head from the concrete when the engine is at idle.
- Vibrating too long in a single place can cause concrete segregation.
- When the coarse aggregate segregates when placing concrete, shovel out the coarse aggregate and put it where there is plenty of mortar. Then use the tool on it. Don't leave coarse aggregate in the segregated condition.
- When concreting a sloped site, always pour from the bottom at the beginning. This way the weight of the freshly poured concrete and vibration will lead to effective removal of air bubbles. Conversely, if the pouring is done first from above, the mortar will separate and eventually slide to the bottom.
- Effective Leveling and Removal of Air Bubbles: Removal of air bubbles is complete after the tool has worked through each effective range, the concrete stops shrinking, and the mortar has risen evenly to the surface, giving off a light appearance. Gently remove the operating tool to not leave holes.
Maintenance Features:
- Tool Use and Care:
- Store idle tools out of reach of children and other untrained persons.
- Maintain tools with care, keeping cutting tools sharp and clean.
- Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the tool's operation.
- Do not force the tool; use the correct tool for the application.
- Service: Tool service must be performed by qualified repair personnel. Service or maintenance performed by unqualified personnel may result in a risk of injury and void warranty. When servicing a tool, use only identical replacement parts. Use of unauthorized parts may create a risk of shock or injury and void warranty.
- Maintenance Schedule: The core casing is properly lubricated at the factory. It is recommended for every 50-100 hours of use, the core be removed and wiped with a clean, dry cloth and EP2 - LITHIUM GREASE be applied.
- Vibrator Head Maintenance:
- Do NOT disassemble the vibrator head.
- The vibrator head is sealed at the factory and contains a special no-maintenance assembly.
- Breaking the seal and adding lubricant will significantly decrease the performance and life of the tools.
- If the vibrator head is damaged and your warranty is still active, call your authorized dealer for a replacement.
- Cleaning:
- Never use solvents or other harsh chemicals for cleaning the non-metallic parts of the tool. These chemicals may weaken the plastic materials used in these parts.
- Use a cloth dampened only with water. For best results, clean the vibrator head and core casing while the concrete is still wet.
- Blow or vacuum dirt and dust out of all crevices in and around the engine unit at least once a week.
- Never let any liquid or wet concrete get inside the engine unit.
- Never immerse the engine unit into concrete or any liquid.
Warranty:
The product is covered by a 12-month warranty from the original purchase and dispatch date. This warranty covers defects in material and workmanship. The company is not liable for incidental, consequential, special, or general costs related to the use of the equipment. The warranty is void if:
- The equipment has been in operation by the end user for a period exceeding 6 months from the date of delivery.
- The equipment is used for any purpose other than those for which it was designed.
- The equipment is repaired by a third party or outside source without the express authorization of the factory.
- The equipment is altered or modified in any way which could adversely affect its operation or reliability.
- The equipment has been subject to abuse, misuse, negligence, or involved in an accident which would affect its proper operation.
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