The HPA-Faip M 824 LL is an electro-pneumatic tyre changer designed for professional use, capable of mounting and demounting various types of tyres on drop-centre single-piece rims. This manual provides comprehensive instructions for its safe operation and maintenance.
Function Description
The M 824 LL tyre changer is engineered to handle tyre mounting and demounting operations efficiently and safely. It features a robust construction that allows the wheel to be held in a vertical position for bead breaking and in a horizontal position for mounting and demounting. All functions are controlled by the operator using foot pedals and hand-operated valves and levers, ensuring intuitive and precise control over the process.
The machine incorporates a bead breaker for detaching the tyre bead from the rim, a turntable for rotating the wheel during mounting and demounting, and a clamping system to secure the rim. It also includes an independent inflation system, particularly useful for tubeless tyres, which allows for controlled inflation and bead seating. The vertical and horizontal arms, along with the mounting/demounting tool, are designed for accurate positioning against the rim edge, facilitating smooth operations.
Important Technical Specifications
The M 824 LL offers a versatile range of capabilities for different wheel sizes and types:
- Turntable clamping capacity:
- Internal clamping: from 13" min
- External clamping: from 10" to 24"
- Rim width: from 3.5" to 14"
- Max. tyre diameter: 1040 mm (41")
- Max. tyre width: 360 mm (14")
- Bead breaker aperture: from 45 mm to 380 mm
- Bead breaking force: 15000 N (at 10 bar pressure)
- Power supply voltage:
- Single-phase: 115-230±10%Volt 50/60Hz
- Three-phase: 230-400±10%Volt 50/60Hz
- DV: 230±10%Volt 1ph 50/60Hz
- Operating pressure: 8 - 10 bar (pneumatic supply line should be between 8 and 16 bar)
- Weight: 283 kg (STD version), 297 kg (TI version)
- Noise levels in operating conditions: ≥ 70 dB (A)
Optional accessories include the HELP power unit (8-11100288), swinging arm (8-11100181), arm with bead lifting disc (8-11100183), BSR Bridgestone wheels device (8-11100182), and RUN FLAT device (8-11100194), which enhance the machine's functionality for specialized tyre types.
Usage Features
The M 824 LL is designed for ease of use, with clear instructions for each operation. Operators must be qualified and trained, understanding the machine's capabilities and safety regulations. Key usage features include:
- Bead Breaking: The tyre must be fully deflated by removing the valve. The bead breaking shoe's opening is adjustable. For European-style high-performance wheels with asymmetrical curvature or those with low-pressure indicator systems, specific bead breaking procedures are outlined to prevent damage. The turntable should be closed during bead breaking.
- Clamping the Wheel: The column is tilted back, and the grippers are positioned to secure the rim. The wheel is placed on the turntable with the narrow part of the rim facing upwards, then lightly pushed down, and the control pedal is used to clamp it.
- Demounting Tyres:
- Soft-walled tyres: The lock button is released to free the vertical and horizontal arms, allowing the mounting/demounting device to be positioned against the rim edge. The pneumatic control lever is used to place the hook under the bead and then lift it over the demounting head. The turntable is rotated clockwise to guide the upper bead over the rim edge. For very soft-walled tyres, a lever may be needed.
- Low-profile tyres: The procedure is similar to soft-walled tyres, with specific attention to positioning the tool correctly and using the pneumatic control lever. For wide wheels (13"-14"), the SP2000 disc is recommended to lift the second bead.
- Mounting Tyres: The beads must be lubricated before mounting. The tyre is placed over the wheel, the column is tilted forward, and the lower bead is positioned under the right-hand part of the head. The turntable is rotated clockwise to mount the bead. For the upper bead, the HELP disc can be used to create space for the edge guard and clamp.
- Inflation: This is a critical operation requiring extreme caution. The machine has an independent inflation system with a pedal and pressure gauge. The wheel should be released from the clamps, and the horizontal and vertical arms locked in position. The Doyfe inflator chuck is connected to the valve stem, and the tyre is inflated in short intervals, constantly checking the pressure gauge to ensure it does not exceed the tyre manufacturer's maximum recommended pressure. For tubeless tyres (TI versions), specific steps are outlined to ensure proper bead seating, including ensuring clean jaws and holding the tyre to create a slight gap during initial inflation.
Maintenance Features
Regular maintenance is crucial for the machine's safety and longevity. Operators must be trained for maintenance tasks and adhere to safety warnings:
- General Safety: Before any adjustment or maintenance, the machine must be disconnected from electrical and pneumatic supplies, and all moving parts must be immobilized. Unauthorized modifications or removal of safety devices are strictly prohibited.
- Lubrication: The Filter Regulator + Lubricator Unit (FRL) filters, regulates pressure, and lubricates the compressed air supply. The lubricant level should be checked periodically through the windows, and topped up with non-detergent SAE20 oil (50cc) as needed. The FRL unit is pre-calibrated to 10 bar pressure, with lubricant flow adjusted to release a drop every 4 bead breaker operations.
- Cleaning: The working area should be kept clean. Compressed air, water jets, or solvents should never be used to clean the machine. A dry cloth is recommended, and steps should be taken to prevent dust from rising.
- Troubleshooting: The manual includes a comprehensive troubleshooting guide for common issues such as the turntable not turning, pedals failing to return to position, air leaks, and insufficient bead breaker force. This guide helps identify problems and suggests solutions like checking wiring, replacing fuses, springs, gaskets, or cylinders, and adjusting belt tension.
- Disposal: At the end of its life, the machine must be disposed of in an environmentally responsible manner. Electrical, electronic, plastic, and metal parts should be separated and recycled according to local regulations. The crossed-out bin symbol on the data plate indicates that the product should not be disposed of with general municipal waste.
- Oil Handling: Specific warnings and recommendations are provided for handling mineral oil, including precautions to avoid skin contact, inhalation, and spills. First aid instructions for ingestion, inhalation, eye contact, and skin contact are also detailed.
- Firefighting: A table lists suitable firefighting means for different types of fires (dry materials, flammable liquids, electrical devices), with a general warning to consult the extinguisher manufacturer for specific application possibilities.
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