Table of Contents
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3-25-99
BH20002 Rev.4
DOING OUR BEST TO PROVIDE YOU THE BEST
DA10
ACTUATOR
OPERATOR'S MANUAL
READ complete manual CAREFULLY
ASSEMBLY
CALIBRATION
BEFORE attempting operation.
OPERATION
REPLACEMENT PARTS
DEMCO
• Dethmers Mfg. Co. • 4010 320th St. • P.O. Box 189 • Boyden, IA 51234
PH: (712) 725-2311 or (712) 725-2302 • Toll Free: 1-800-543-3626 • FAX: 1-800-845-6420
www.demco-products.com
Page 1
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Table of Contents
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Summary of Contents for Demco DA10
- Page 1 3-25-99 BH20002 Rev.4 DOING OUR BEST TO PROVIDE YOU THE BEST DA10 ACTUATOR OPERATOR’S MANUAL READ complete manual CAREFULLY ASSEMBLY CALIBRATION BEFORE attempting operation. OPERATION REPLACEMENT PARTS DEMCO • Dethmers Mfg. Co. • 4010 320th St. • P.O. Box 189 • Boyden, IA 51234 PH: (712) 725-2311 or (712) 725-2302 •...
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Page 3: Table Of Contents
DEMCO MODEL DA10 ACTUATOR Model DA10 is a heavy duty surge brake actuator for trailers with two or four wheels. When brakes are applied on the towing vehicle, forward inertia of trailer toward towing vehicle applies brakes on trailer in direct relation to manner brakes are applied on towing vehicle. -
Page 4: Safety, Signal Words
If you have questions not answered in this manual, require additional copies, or if your manual is damaged, please contact your dealer or Dethmers Mfg. Co., P.O. Box 189, 4010 320th Street, Boyden, IA 51234 ph: (712) 725-2311 or (712) 725-2302 Toll Free: 1-800-543-3626 Fax: (712) 725-2380 http://www.demco-products.com Page 4... -
Page 5: Equipment Safety Guidelines
SAFETY...YOU CAN LIVE WITH IT EQUIPMENT SAFETY GUIDELINES Every year many accidents occur which could have been avoided by a few seconds of thought and a more careful approach to handling equipment. You the operator, can avoid many accidents by observing and following precautions in this section. To avoid personal injury, study the following precautions and insist those working with you, or you yourself, follow them. -
Page 6: Safety Sign Locations
SAFETY SIGN LOCATIONS Types of safety sign and locations on equipment are shown in illustration below. Good safety requires that you familiarize yourself with various safety signs, type of warning, and area or particular function related to that area, that requires your SAFETY AWARENESS. This decal positioned as shown BRAKES ON BRAKES OFF... -
Page 7: Safety Sign Care
SAFETY SIGN CARE • Keep safety signs clean and legible at all times. • Replace safety signs that are missing or have become illegible. • Replacement parts that displayed a safety sign should also display safety sign. • Safety signs are available from your distributor, dealer parts department, or factory. How to install safety signs: •... -
Page 8: Before Operation
BEFORE OPERATION: • Carefully study and understand this manual. • Always wear protective clothing and substantial shoes. • Give equipment a visual inspection for any loose bolts, worn parts, or cracked welds, and make necessary repairs. Follow maintenance safety instructions included in this manual. •... - Page 9 • Beware of bystanders, PARTICULARLY CHILDREN! Always look around to make sure it is safe to start engine of towing vehicle or move equipment. This is particularly important with higher noise levels, as you may not hear people shouting. • NO PASSENGERS ALLOWED- Do not carry passengers anywhere on or in equipment. •...
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Page 10: Following Operation
FOLLOWING OPERATION • Following operation, or when unhitching, stop towing vehicle, set brakes, shut off the engine and remove ignition key. • Store unit in an area away from human activity. • Do not permit children to play on or around stored unit. •... -
Page 11: Performing Maintenance
• Watch for obstructions overhead and side to side while transporting. • Always operate equipment in a position to provide maximum visibility at all times. Make allowances for increased length and weight of equipment when making turns and/or stopping. PERFORMING MAINTENANCE •... -
Page 12: Bolt Torque
BOLT TORQUE TORQUE DATA FOR STANDARD NUTS, BOLTS, AND CAPSCREWS. Tighten all bolts to torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using bolt chart as guide. Replace hardware with same grade bolt. NOTE: Unless otherwise specified, high-strength Grade 5 hex bolts are used throughout assembly of equipment. -
Page 13: Actuator Parts Breakdown And Parts List
MODEL DA10 ACTUATOR PARTS BREAKDOWN 5398 Master Cylinder Repair Kit (gasket 05681 included) Standard Outer Case Shown, See Page 14 for Other Options Model DA10 ACTUATOR PARTS LIST REF. NO. PART NO. QTY. DESCRIPTION 05972 Inner Slider Tb. Chan. Down (Shown) -
Page 14: Da10 Outer Case Options
OUTER CASE OPTIONS 03875 05332 05334 05971 07113 07414 09418 09443 09536 Page 14... -
Page 15: Actuator Installation And Maintenance
To avoid personal injury or death, do not exceed lowest of (1) the rated capacity of Model DA10 actuator, or (2) rated capacity of ball and hitch being used, or (3) trailer's Gross Vehicle Weight Rating (GVWR). Model DA10 brake actuator has a maximum load rating of 10,000 lbs. - Page 16 5. Once bleeding is completed, refill master cylinder and attach cap (#21) securely. Replace emergency lever spring, lever guide, lock washers and 5/16" hex head bolts. 6. Test brakes by pulling emergency lever (#16) forward until it locks into its second notch position.
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Page 17: Demco Brake Products Limited Warranty
Demco warrants system to be free from defects in materials and workmanship for two years when properly installed, used, and maintained by purchaser. Any part of Demco brake system found to be defective in materials or workmanship will be repaired or replaced at manufacturers option without charge for parts or labor to original owner. -
Page 18: Demco Brake Products Limited Warranty Cont
2) road film or gravel damage to paint. 3) paint. 4) rust damage. 5) any Demco brake product that has been loaded in excess of load capacity stated on identification label. 6) Accessory parts, materials or components. Warrantor has a policy of continuous product improvement. We reserve the right to change or improve design of any Demco brake product, including but not limited to state of the art changes, without assuming any obligation to modify any product previously manufactured. - Page 19 Page 19...
- Page 20 DETHMERS MFG. COMPANY P.O. BOX 189 4010 320th St., BOYDEN, IA. 51234 PH: (712) 725-2311 or (712) 725-2302 FAX: (712) 725-2380 TOLL FREE: 1-800-54DEMCO (1-800-543-3626) www.demco-products.com Page 20...
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