New Springs for your Leveling Jack
Posted 11-15-2021 at 05:18 PM by HiBanky
One of the causes for leveling jack to retract slowly can be weak old return springs. HWH offers a replacement that has considerable more strength and can, when installed, improve the retraction time. These springs new and old have a good deal of energy stored in them so use extreme caution when extending and releasing them.
Be careful !!! If you are not completely confident you can do this safely, take it to a repair shop.
Installation requires some ingenuity but does not take long to accomplish. Start by cutting 20 or more wood shims about an 1/8 of an inch thick. These should be a little longer than the diameter of the spring. Paint sticks work well for this.
Stretch each spring out to one and a half times it’s retracted length. Okay this can not be done by hand so here is the ingenuity part. I used a 2 ton come-along and a length of heavy chain. You also need two immovable object like power line poles and/or heavy vehicles. Stretch one spring out and insert all the shims between the coils. You may need to adjust the amount of stretch so that the shims fit snug. Release the spring from the come-along.
With the jacks in the up position, use two pry bars to pry the round “Foot” off the end of the hydraulic cylinder. Remove the old springs and hang the new ones. Attach the lower end of the new springs to the Foot. Extend the jack just enough to allow the plate to slip over the alignment pin at the bottom of the hydraulic cylinder. When the foot is secure over the pin, extend the jack until the shims are loose. Pull all the shims and raise the jacks.
Be careful !!! If you are not completely confident you can do this safely, take it to a repair shop.
Installation requires some ingenuity but does not take long to accomplish. Start by cutting 20 or more wood shims about an 1/8 of an inch thick. These should be a little longer than the diameter of the spring. Paint sticks work well for this.
Stretch each spring out to one and a half times it’s retracted length. Okay this can not be done by hand so here is the ingenuity part. I used a 2 ton come-along and a length of heavy chain. You also need two immovable object like power line poles and/or heavy vehicles. Stretch one spring out and insert all the shims between the coils. You may need to adjust the amount of stretch so that the shims fit snug. Release the spring from the come-along.
With the jacks in the up position, use two pry bars to pry the round “Foot” off the end of the hydraulic cylinder. Remove the old springs and hang the new ones. Attach the lower end of the new springs to the Foot. Extend the jack just enough to allow the plate to slip over the alignment pin at the bottom of the hydraulic cylinder. When the foot is secure over the pin, extend the jack until the shims are loose. Pull all the shims and raise the jacks.
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