How to Rebuild a Serco Hold Down Unit


Dock Leveler Safety Tutorial


Related Serco Hold down unit parts

Bracket (Holdown Housing Assembly)

Spring (Holdown Return o/s)

Retaining Plate for O/S holdown

End Plate (for O/S holdown)

Pinion Gear, Shaft and Guide Assembly

Release Gear - 8-8025

Release Gear - 328-792

Release Lever



Get it right the first time!



Dock Leveler Overview
More Dock Leveler Tutorials

Unmatched Support. The Right Part. DIY with Confidence!

YES, WE'RE OPEN FOR BUSINESS! DDM is considered a life-sustaining company because we are an internet retail company that provides essential products. Due to the recent outbreak of Coronavirus, however, we are changing our local order pickup policy at our West Chicago location. To pick up an order you will need to order first. The quickest way is to order in advance through our online shopping cart. There you can select the local pickup option. Or, you can call 630-293-1337 for assistance, to confirm availability of parts, and to place your order. Once ordered, your parts will be available for pickup in the lobby of our north side front entrance. Longer items will be picked up on the south side loading dock. Please honor the six foot social distancing rule. Thank you for your patience and understanding as we all navigate this challenge together. More information is available on our blog titled DDM Adjusts to the COVID-19 Coronavirus. In the same article you will also find documentation and an answer to the question: "Is a garage door repair company a life sustaining business?"

PLEASE NOTE: DUE TO COVID-19 SHIPPING TIMES ARE NOT GUARANTEED, EVEN ON NEXT DAY AND SECOND DAY SHIPMENTS. NORMAL TRANSIT TIMES DO NOT APPLY.