Demco DA20 User Manual

Page 1OPERATORS MANUALACTUATORDA20Dethmers Manufacturing CompanyDethmers Manufacturing CompanyDethmers Manufacturing CompanyDethmers Manufacturing Com

Page 10FOLLOWING OPERATION• Following operation, or when unhitching, stop towing vehicle, set brakes,shut off the engine and remove ignition key.• Sto

Page 11• Watch for obstructions overhead and side to side while transporting.• Always operate equipment in a position to provide maximum visibility at

Page 12BOLT TORQUE TORQUE DATA FOR STANDARD NUTS, BOLTS, AND CAPSCREWS.Tighten all bolts to torques specified in chart unless otherwise noted. Check t

Page 13Model DA20 ACTUATOR PARTS5398 Master Cylinder Repair Kit(gasket 05681 included)1234444455688999910111619227233630301321174241415141524182029303

Page 14095370948603884077180710503412 03548OUTER CASE OPTIONS

Page 15DEMCO MODEL DA20 BRAKE ACTUATORINSTALLATIONModel DA20 is completely assembled and ready to bolt into place.1. DA20 actuator comes with various

Page 16MAINTENANCE1. Frequently check brake fluid level. (Fluid must be approved, clean and uncontaminated.)2. Make sure actuator mounting bolts are s

Page 171.Extent and Duration of this Warranty:Your Demco brake product is warranted to be free from defects in materials and workmanship under normal

Page 18DEMCO BRAKE PRODUCTS - LIMITED WARRANTY CONTINUEDDISCLAIMERThis warranty does not cover:1) normal wear and tear.2) road film or gravel damage t

Page 19NOTES

Page 2NOTES

Page 20DETHMERS MFG. COMPANYP.O. BOX 1894010 320th St., BOYDEN, IA. 51234PH: (712) 725-2311 or (712) 725-2302FAX: (712) 725-2380TOLL FREE: 1-800-54DE

Page 3 Model DA20 is a heavy duty surge brake actuator for trailers with two or four wheels.When brakes are applied on the towing vehicle, forward ine

Page 4SAFETYTAKE NOTE! THIS SAFETY ALERT SYMBOL FOUND THROUGHOUT THISMANUAL IS USED TO CALL YOUR ATTENTION TO INSTRUCTIONS INVOLVINGYOUR PERSONAL SAFE

Page 5SAFETY...YOU CAN LIVE WITH ITEQUIPMENT SAFETY GUIDELINESEvery year many accidents occur which could have been avoided by a few seconds ofthought

Page 6SAFETY SIGN LOCATIONSTypes of safety sign and locations on equipment are shown in illustration below. Good safetyrequires that you familiarize y

Page 7SAFETY SIGN CARE• Keep safety signs clean and legible at all times.• Replace safety signs that are missing or have become illegible.• Replacemen

Page 8BEFORE OPERATION:• Carefully study and understand this manual.• Always wear protective clothing and substantial shoes.• Give equipment a visual

Page 9• Beware of bystanders, PARTICULARLY CHILDREN! Always look around to make sure it issafe to start engine of towing vehicle or move equipment. T