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Flat Bottom Jack Remediation Options

All EECO facilities are currently open during normal business hours in order to serve our customers. If this situation changes, we will provide information here.

Flat Bottom Jack Remediation Options

If you are compelled to replace your flat bottom jack you have several options:

OPTION 1 – Replace your Single Bottom Cylinder with a Double Bottom Cylinder encapsulated in a non-corrosive secondary containment casing (e.g., PVC Pipe liner)

Advantages:
• Eliminates the risk of failure
• Eliminates the risk of soil contamination

Disadvantages:
• Approximate shut down times of 4–6 weeks
• Unknown soil conditions may add additional costs
• Hole may need to be re-drilled to make it larger for pvc liner
• Hole may need to be re-drilled due to debris or cave in

OPTION 2 – Install a Piston Gripper – Only if there is enough exposed piston length to install.

Advantages:
• Eliminates the risk of failure
• Shorter shut down period

Disadvantages:
• Does not eliminate the risk of soil contamination
• Should the cylinder fail at any time in the future it will still require replacement resulting in further cost.

OPTION 3 – Install Car Safeties and Governor

Advantages
• Eliminates the risk of failure
• Shorter shut down period

Disadvantages:
• Does not eliminate the risk of soil contamination
• Should the cylinder fail at any time it will still require replacement
• Rails may not be capable of supporting system
• Additional cost due to car frame modification

OPTION 4 – Replace the Elevator

Advantages:
• Complete new system ensures that all components are new
• In-ground cylinder is replaced with either a machine room less traction elevator (more overhead required) or an above ground hydraulic system

Disadvantages:
• Much longer shut down period
• Very expensive

Option 5 – Abandon the in-ground jack in place and convert the system to above ground holeless system

Advantages:
• This avoids the costly removal and replacement of the in-ground jack
• No risk of future in-ground jack failure
• No risk of future soil contamination once all oil of existing jack is removed

Disadvantages:
• The cost may be similar to replacing it with a new -in-ground jack
• May be limited based on the number of stops
• Requires modification to existing car frame

Note: EECO has developed a survey form to identify the minimum required information to facilitate this option as far as working out the required car frame modification