Step 1: Ensure Your Hydraulic Jack is Fully Retracted
Before initiating any repairs or adjustments to your hydraulic jack, it is crucial to verify that all its components are securely in their retracted positions. Ensure that the landing gear, slide-outs, and stabilizers are nestled within the unit, mimicking its state when prepared for transportation.
Step 2: Inspect the Hydraulic Fluid
Subsequently, locate the hydraulic pump’s fluid reservoir and meticulously observe the fluid level. It is imperative that the fluid level resides approximately a quarter of an inch below the reservoir’s top edge, never exceeding half an inch from the top.
Once you have confirmed the fluid level, scrutinize the fluid’s surface for any froth, bubbles, or foam. The presence of bubbles suggests that air may have been drawn into the reservoir during the last retraction of the hydraulic components. Therefore, allow a period of 15 to 20 minutes for the bubbles to dissipate before proceeding to bleed the hydraulic jack.
Step 3: Extend the Ram Piston
Position your jack securely and fully extend the ram piston. The ram piston, situated directly beneath the load it supports, must be fully extended to facilitate any subsequent work.
Step 4: Release the Jack’s Pressure Valve
With the ram piston extended, you can safely proceed to release the pressure valve to lower the jack. Locate the pressure valve on the side of the jack and use a flathead screwdriver to turn it counterclockwise. Once released, you may proceed to the next step.
Step 5: Open the Filler Plug
After releasing the pressure valve, you can now open the filler plug, found on the main body of the jack. Be mindful not to confuse the filler plug with the check valves, which should remain untouched. If unsure of the filler plug’s location, refer to the instruction manual.
Using a flathead screwdriver, turn the filler plug counterclockwise in a slow, deliberate manner. Upon removing the plug, you may hear a hissing sound as trapped air escapes. Once the hissing ceases, reattach the filler plug to the jack.
Step 6: Repeat the Process Until All Air is Removed
Once the filler plug is reattached, repeat the aforementioned steps until you are confident that no more air is escaping. Once the hydraulic jack is fully bled, it is ready for use.
