Quarterly Preventive Maintenance Waltco recommends that the WDV / WDVBG liftgate be inspected at 6 month or 3000 cycle intervals to help assure proper function and operation of the liftgate. Note: Photocopy the following PM Checklist to help keep track of periodic maintenance on the liftgate. Keep completed form with maintenance records.. Waltco WDV liftgate installed on semi-trailer only goes up and down. Open / close doesn't work.Video covers troubleshooting steps to take to identify a defe.
Understanding the Waltco liftgate troubleshooting manual can save you time and money. It helps you identify common issues and provides step-by-step solutions. This guide is designed to make troubleshooting straightforward, even for those with limited technical skills.. TROUBLESHOOTING. WALTCO offers a 24/7 interactive support tool to help you with basic diagnostics for common electrical and hydraulic situations for your WALTCO liftgate.. LIFTGATES TECH SUPPORT CONTACT INFORMATION. In addition to our service network, we have a dedicated internal technical support team for liftgates, ready to help when you.