How to Change the Hydraulic Oil of a Mobile Aerial Boom Lift

Hydraulic oil plays a crucial role in the operation of a mobile aerial boom lift. It ensures the smooth movement of the boom by transferring power throughout the hydraulic system. Over time, the oil can become contaminated or degrade, reducing the lift's performance and potentially causing damage to its components. Therefore, it's essential to change the hydraulic oil regularly, as recommended by the manufacturer, to maintain optimal functionality and safety. Here's a step-by-step guide on how to change the hydraulic oil of a mobile aerial boom lift.
Step 1: Prepare the Lift and Work Area
Before starting the oil change, park the boom lift on a level surface, and ensure it is in a stable position. Engage the parking brake and turn off the engine. Make sure to wear appropriate personal protective equipment (PPE), including gloves and safety goggles. Place oil-absorbent mats or containers beneath the drain point to catch any spills and minimize environmental impact.
Step 2: Check the Owner's Manual
Refer to the lift's owner's manual to understand the manufacturer's recommendations for the type and quantity of hydraulic oil to use. Using the wrong type of oil could damage the system, so it's important to follow the specifications precisely.
Step 3: Locate the Hydraulic Oil Reservoir and Drain Plug
Identify the location of the hydraulic oil reservoir and the drain plug. The reservoir is usually located near the hydraulic pump. Make sure the boom lift is in its fully lowered position, as this will help drain out as much old oil as possible from the system.
Step 4: Drain the Old Hydraulic Oil
Place a suitable container beneath the drain plug. Carefully remove the plug and allow the old oil to drain out completely. This process may take a few minutes. Inspect the oil for any signs of contamination, such as metal shavings or unusual discoloration, as these may indicate other issues within the system.
Step 5: Clean or Replace the Hydraulic Oil Filter
The hydraulic system filter should be cleaned or replaced during the oil change. A clogged or dirty filter can reduce efficiency and cause damage to the hydraulic components. Consult the owner's manual for instructions on how to clean or replace the filter.
Step 6: Reinstall the Drain Plug and Refill with New Oil
Once all the old oil has drained, reinstall the drain plug securely. Proceed to refill the hydraulic reservoir with the recommended type and amount of new oil. Use a funnel to avoid spills and ensure the oil is poured slowly to prevent air bubbles from forming in the system.
Step 7: Check for Leaks and Test the System
After refilling, start the boom lift and operate the boom at different heights and angles to allow the new oil to circulate throughout the system. Check the hydraulic connections and hoses for any signs of leaks. If any leaks are detected, stop the engine and tighten or repair the affected parts.
Step 8: Dispose of the Old Hydraulic Oil Properly
Dispose of the used hydraulic oil following local environmental regulations. Many auto shops or recycling centers accept old hydraulic oil for safe disposal. Do not dispose of it in regular trash or pour it down drains, as this can cause environmental harm.
Changing the hydraulic oil in a mobile aerial boom lift is a straightforward process that can help extend the life of the equipment and ensure safe operation. Regular maintenance, including timely oil changes, is key to keeping the boom lift in top working condition. Always follow the manufacturer's guidelines and take appropriate safety measures when performing maintenance tasks.