Demco DA66B manual

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- informations concerning technical data of Demco DA66B
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- safety signs and mark certificates which confirm compatibility with appropriate standards

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Table of contents for the manual

  • Page 1

    Page 1 OPERA T ORS MANU AL BRAKE A CTU A T OR D A66B DOING OUR BEST TO PROVIDE YOU THE BEST ASSEMBLY CALIBRATION OPERATION REPLACEMENT PARTS READ complete manual CAREFULLY BEFORE attempting operation. 11-05 BH20030, Rev 0 DEMCO • Dethmers Mfg. Co . • 4010 320th St. • P .O . Bo x 189 • Bo yden, IA 51234 PH: (712) 725-2311 • Toll Free: 1-80[...]

  • Page 2

    Page 2 Model DA66B is a hydraulic 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. Brake towing vehicle hard and brakes on trailer are applied hard. Ma[...]

  • Page 3

    Page 3 How satisfied are you with our product? ❍❍ ❍ ❍ How satisfied are you with the dealership/distributor sales staff? ❍❍ ❍ ❍ Dealer/Distributor Name City State How satisfied are you with the compan y sales staff? ❍❍ ❍ ❍ How satisfied are you with the deliver y? ❍❍ ❍ ❍ Did you have any contact with a Demco Represen[...]

  • Page 4

    Page 4 P ostage Dethmers Manufacturing Company 4010 320th Street, Box 189 Boyden, Iowa 51234[...]

  • Page 5

    Page 5 SAFETY T AKE NO TE! THIS SAFETY ALERT SYMBOL FOUND THROUGHOUT THIS MANU AL IS USED T O CALL Y OUR A TTENTION T O INSTR UCTIONS INV OL VING Y OUR PERSONAL SAFETY AND SAFETY OF O THERS. F AILURE T O FOLLO W THESE INSTRUCTIONS CAN RESUL T IN INJUR Y OR DEA TH. THIS SYMBOL MEANS A TTENTION BECOME ALER T Y OUR SAFETY IS INV OL VED! SIGNAL W ORDS [...]

  • Page 6

    Page 6 SAFETY ...Y OU CAN LIVE WITH IT EQ UIPMENT SAFETY GUIDELINES Ev er y year man y accidents occur which could have been a v oided b y a f e w seconds of thought and a more careful approach to handling equipment. Y ou the oper ator , can av oi d many accidents b y observing and follo wing precautions in this section. T o a void personal injur y[...]

  • Page 7

    Page 7 SAFETY SIGN LOCA TIONS 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 is located in the position shown on both s[...]

  • Page 8

    Page 8 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 9

    Page 9 BEFORE OPERA TION: • Carefully review and follow the installation instructions on page 16 of this manual. • 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 mai[...]

  • Page 10

    Page 10 • 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. • Do not clean, lubr[...]

  • Page 11

    Page 11 FOLLO WING OPERA TION • 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. • Make sure all parked units are on a hard, level surface and engage all safety d[...]

  • Page 12

    Page 12 • 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. • Carefully revie w and follow the maintenance instructions on page 17 of this manua[...]

  • Page 13

    Page 13 BOL T TORQ UE T ORQUE D A T A FOR ST AND ARD NUTS, BOL TS, AND CAPSCREWS. Tighten all bolts to torques specified in char t unless otherwise noted. Check tightness of bolts per iodically , using bolt char t as guide . Replace hardware with same grade bolt. NO TE: Unless otherwise specified, high-strength Grade 5 he x bolts are used throughou[...]

  • Page 14

    Page 14 Do not tighten these bolts. They are factory torqued and must remain loose enough to allow free coupler movement. 8605001 DRUM BRAKE A CTU A T OR P AR TS 5398 Master Cylinder Repair Kit (gasket 09153 included) 25 5696 Coupler Repair Kit for 6000 lb. coupler not included 1. 12190-95 1 6000# 2" Lever Lock Coupler 2. SB23278 2 Roller 3. 1[...]

  • Page 15

    Page 15 5482 Master Cylinder Repair Kit (gasket 09153 included) 25 5696 Coupler Repair Kit for 6000 lb. coupler not included 1. 12190-95 1 6000# 2" Lever Lock Coupler 2. SB23278 2 Roller 3. 12151 2 Front Roller Spacer 4. 02166 1 3/8”-16UNC X 2-3/7” Hex Head Bolt (gr.5) 5. 07176 1 3/8”-16UNC Stover Lock Nut 6. 05684 2 1/2"-13UNC x 4-[...]

  • Page 16

    Page 16 DEMCO MODEL D A66B BRAKE A CTU A T OR INSTALLATION The Model DA66B is completely assembled and ready to bolt into place. 1. Bolt the actuator to 3" square tongue with two 1/2" x 4-1/2" bolts Gr.5 and 1/2" nylon insert lock nuts. Thin wall tongues require 3/4" O.D. x 11 gauge wall tubing as spacers inside the tongue.[...]

  • Page 17

    Page 17 MAINTENANCE 1. Frequently check brake fluid level. (Fluid must be approved, clean and uncontaminated.) 2. Make sure actuator mounting bolts are secure, and coupler is free to telescope inside outer case. 3. Inspect actuator, replace bent, worn or damaged parts. 4. Be constantly aware of systems braking quality, make periodic checks as descr[...]

  • Page 18

    Page 18 1. Extent and Duration of this Warranty: Your Demco brake product is warranted to be free from defects in materials and workmanship under normal use and service for a period of one year after date of purchase by original owner when properly installed, used and maintained by purchaser. When this Demco brake product is used as part of complet[...]

  • Page 19

    Page 19 DEMCO BRAKE PR ODUCTS - LIMITED W ARRANTY CONTINUED This warranty does not cover: 1) normal wear and tear. 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 p[...]

  • Page 20

    Page 20 DETHMERS MFG. COMPANY P.O. BOX 189 4010 320th St., BOYDEN, IA. 51234 PH: (712) 725-2311 FAX: (712) 725-2380 TOLL FREE: 1-800-54DEMCO (1-800-543-3626) www.demco-products.com[...]