I just scanned and sent the Operation And Maintenance Instructions to the ACMOC library. If you aren't a paying member, this one manual will is more than worth the cost of membership. Here's a sample. The forth picture shows a D7E with a front mounted CCU with a 171 hydraulic tilt! This book covers all options.
Craig
[attachment=73776]IMG_20230917_0004.jpg[/attachment]