The provided document is an Operator's Manual with Maintenance Information for an Aerial Work Platform, specifically the GTWY Series. This manual outlines the safe operation, maintenance, and technical specifications of the machine.
Function Description
The Aerial Work Platform (AWP) is designed to lift personnel and materials to elevated work areas. It is intended for use by trained and authorized personnel only, who must read, understand, and obey all safety rules and operating instructions outlined in this manual. The machine is suitable for various tasks requiring work at height, provided the operating environment and load conditions are within the specified limits. The GTWY series includes models with different maximum platform and working heights, ranging from 6.2m to 12m for platform height and 8.2m to 14m for working height.
The platform can be controlled from both ground and platform controls, offering flexibility in operation. It features an emergency stop system accessible from both locations to ensure safety. The machine is equipped with outriggers and leveling jacks to provide stability during operation, and an interlock system ensures that the platform cannot be raised unless the machine is properly leveled and stabilized.
A manual lowering valve is provided for emergency situations, allowing the platform to be lowered even if the primary power system fails. The machine can also be transported and loaded using various methods, including winching onto a flatbed truck or lifting with a crane, with specific instructions provided for each method to ensure safety. Some models feature a tilt-back frame for easier transport through standard doorways.
Important Technical Specifications
The GTWY Series Aerial Work Platform comes in several models (GTWY1-6, GTWY1-8, GTWY1-9, GTWY1-10, GTWY1-12), each with varying specifications:
- Max. Platform Height: Ranges from 6.2m (GTWY1-6) to 12m (GTWY1-12).
- Max. Working Height: Ranges from 8.2m (GTWY1-6) to 14m (GTWY1-12).
- Loading Capacity: 150kg for GTWY1-6, GTWY1-8, GTWY1-9; 136kg for GTWY1-10; 120kg for GTWY1-12.
- Occupants: 1 person for all models.
- Platform Dimension: 660mm*670mm for most models, with GTWY1-12 having 660mm*670mm.
- Overall Height: Ranges from 1980mm (GTWY1-6, GTWY1-8, GTWY1-9, GTWY1-10) to 2680mm (GTWY1-12).
- Overall Width: Ranges from 780mm (GTWY1-6, GTWY1-8, GTWY1-9, GTWY1-10) to 810mm (GTWY1-12).
- Overall Length: Ranges from 1264mm (GTWY1-6) to 1460mm (GTWY1-12).
- Overall Coverage: Ranges from 1700mm*1700mm (GTWY1-6, GTWY1-8, GTWY1-9, GTWY1-10) to 2300mm*2100mm (GTWY1-12).
- Voltage: 220V/110V for all models.
- Phase: Single for all models.
- Hertz: 50HZ/60HZ for all models.
- Motor: 0.75kW for all models.
- Weight: Ranges from 320kg (GTWY1-6) to 460kg (GTWY1-12).
- Ambient Operating Temperature: -29°C to 57°C for all models.
Airborne Noise Emissions:
- Sound pressure level at ground workstation: < 70 dBA
- Sound pressure level at platform workstation: < 70 dBA
- Total vibration value to which the hand/arm system is subjected: does not exceed 2.5 m/s2.
- Highest root mean square value of weighted acceleration to which the whole body is subjected: does not exceed 0.5 m/s2.
Electrocution Hazards: The manual provides specific minimum safe voltage approach distances for various phase-to-phase voltages, emphasizing the importance of maintaining safe distances from energized power lines. For example, for 0 to 300V, the avoid contact distance is 10 feet (3.05 meters), increasing to 45 feet (13.72 meters) for 750KV to 1000KV.
Maximum Allowable Side Force: 200N.
Usage Features
The GTWY Series AWP is designed with several features to enhance usability and safety:
- Dual Control System: The machine can be operated from both ground controls and platform controls, providing flexibility depending on the task and operator's preference.
- Emergency Stop Buttons: Red emergency stop buttons are located at both ground and platform controls, allowing for immediate shutdown in hazardous situations.
- Outrigger Interlock System: This safety feature ensures that the platform cannot be raised unless all outriggers are properly deployed, locked, and the machine is leveled, preventing tip-over hazards. Display lights at the ground controls indicate the status of the interlock system.
- Bubble Level: A bubble level is integrated into the machine to assist operators in achieving proper leveling using the leveling jacks, crucial for stability.
- Manual Lowering Valve: In case of power failure or emergency, a manual lowering valve located at the side of the hydraulic unit allows the platform to be safely lowered.
- Tilt-back Frame (Optional/Standard on some models): For models with a tilt-back frame, this feature allows the mast to be tilted back, reducing the overall height of the machine for transport through standard doorways.
- Winching/Tie-down Point & Forklift Socket: These features facilitate secure loading and unloading of the machine onto transport vehicles.
- Harness Anchor: A harness anchor point is provided for operator safety, although personal fall protection equipment (PFPE) is not always required unless specified by job site or employer rules.
- AC Power Plug (AC models): For AC models, an AC power plug is available on the platform for connecting tools or other electrical equipment.
Maintenance Features
The manual emphasizes the importance of regular maintenance and inspections to ensure the safe and reliable operation of the AWP:
- Pre-operation Inspection: Operators are required to perform a visual pre-operation inspection before each work shift. This includes checking for damage, missing parts, unauthorized modifications, legible decals, battery fluid levels (DC models), and hydraulic oil levels.
- Function Tests: Before use, operators must perform a series of function tests to ensure all machine functions are operating correctly, including the up/down movement, emergency stops, and outrigger interlock.
- Hydraulic Oil Level Check: Daily checks of the hydraulic oil level are essential to prevent damage to hydraulic components. The manual specifies the use of Chevron Rando HD equivalent hydraulic oil.
- Battery Charging Instructions (DC models): Detailed instructions are provided for charging the battery, including safety precautions such as charging in a well-ventilated area and avoiding external chargers or booster batteries.
- Scheduled Maintenance: Quarterly, annual, and bi-annual maintenance must be performed by trained and qualified service technicians according to the manufacturer's specifications. Machines out of service for more than three months require a quarterly inspection before being returned to service.
- Decal Inspection: Operators must regularly inspect all decals to ensure they are legible and in place, as they provide important safety warnings and operational information.
- Storage Container for Manuals: The operator's manuals must be kept in a storage container located on the platform, ensuring they are always available to the operator.
- Cleaning: The manual advises keeping the platform floor clear of debris.
The manual also highlights the importance of using only Rees authorized replacement parts for any repairs to maintain the machine's safety and stability. Any damaged or malfunctioning machine must be immediately tagged and removed from service.
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