Demco DA66B Скачать руководство пользователя страница 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 described in brakes owners

manual. Consult certified brake specialist to make necessary adjustments or repairs. Failure to do so
could result in loss of braking.

SERVICING THE EMERGENCY LEVER

If emergency lever (#11) of actuator is applied, it can be disengaged by using a screwdriver to lift
upward on front of flat emergency lever spring (#17) while pulling lever forward until released.
A thorough inspection of emergency lever, emergency lever spring, and cable with S-hooks is required.
Damaged parts must be replaced as follows:

a. Using two wrenches, loosen brake line from fitting (#24) at back of master cylinder (#23). Take

care not to allow fitting to become loose in master cylinder.

b. Remove cable S-hook (#14) from emergency lever (#11).

c. Remove two bolts (#15) and emergency lever spring (#17).

d. Press pushrod assembly (#8) rearward to allow emergency lever (#11) to pass by and remove it

through cross slot in top of outer case (#21).

e. To install new emergency lever, press pushrod assembly rearward and hold it there, while putting

emergency lever through cross slot in top of outer case. Emergency lever should overlap front of
pushplate when assembled properly.

f.

Install new emergency lever spring (#17) with bend upward, using two new self tapping bolts
(#15).

g. Install emergency cable with S-hook (#13) by inserting S-hook through hole in emergency lever

(#11) and squeezing hook shut.

h. Tighten fitting (#24) and brake line. Make sure to use two wrenches, so fitting isn’t overtightened

in master cylinder.

i.

Add brake fluid if necessary and bleed brake system as described  per instructions 4-6  in
the installation instructions.

5.    Once bleeding is completed, refill master cylinder to within 1/2

 of top.  and attach  cap (#18)

securely. Replace emergency lever spring, lever guide, lock washers and 5/16" hex head
bolts.  Wipe up any excess brake fluid immediately to prevent paint damage.

6. Test brakes by pulling emergency lever (#11) forward until it locks into its second notch

position. (Lever should be approximately straight up.) Attempt to rotate wheels in a forward
direction. If any wheels rotate, brakes must be adjusted. To adjust brakes, release
emergency lever from locked position,  set each wheels brake adjustment up 2 or  3 notches
(per instructions in appropriate brake cluster manual). Repeat test procedure as necessary.

Содержание DA66B

Страница 1: ...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 Box 189 Boyden IA 51234 PH...

Страница 2: ...or distributors must review these instructions with ultimate user Failure to follow these instructions or failure to properly maintain braking system after installation can result in loss of braking...

Страница 3: ...u satisfied with the company s resolution of your problem Why did you purchase this product Please list the specific source of information prompting this purchase After purchasing this product do you...

Страница 4: ...Page 4 Postage Dethmers Manufacturing Company 4010 320th Street Box 189 Boyden Iowa 51234...

Страница 5: ...be limited to most extreme situations typically for machine components which for functional purposes cannot be guarded WARNING Indicates a potentially hazardous situation that if not avoided could re...

Страница 6: ...shields in place If shield removal becomes necessary for repairs replace shield prior to use Replace any caution warning danger or instruction safety decal that is not readable or is missing Location...

Страница 7: ...This decal is located in the position shown on both sides of the actuator The replacement part number for two decals is BH21004 Preset Fasteners DO NOT adjust without factory specifications DRUM BRAKE...

Страница 8: ...position before you remove backing paper Remove smallest portion of split backing paper Align decal over specified area and carefully press small portion with exposed sticky backing in place Slowly p...

Страница 9: ...h enough for what it is towing Refer to your towing vehicle Owners Manual Do not allow anyone to stand between tongue or hitch and towing vehicle when backing up to equipment Securely attach to towing...

Страница 10: ...vehicles parking brake shut off engine and remove the ignition key Be extra careful when using on inclines OPERATE TOWING UNIT CAUTIOUSLY REDUCE SPEED TO ALLOW FOR ADDITIONAL WEIGHT OF TOWED UNIT Avo...

Страница 11: ...turns to avoid risk of overturning Always keep towing vehicle in gear to provide engine braking when going downhill Do not coast Do not drink and drive Comply with state and local laws governing high...

Страница 12: ...Use extreme caution when making adjustments Follow torque chart in this manual when tightening bolts and nuts Openings in skin and minor cuts are susceptible to infection from brake fluid Without imm...

Страница 13: ...400 540 7 8 170 230 420 570 650 880 1 225 300 630 850 970 1310 Torque figures indicated are valid for non greased or non oiled threads and heads unless otherwise specified Therefore do not grease or...

Страница 14: ...lacement S Hook ONLY 15 05960 2 5 16 18UNC x 1 2 Self Tapping Screw 16 05424 2 5 16 External Tooth Lock Washer 17 05693 95 1 Emergency Lever Spring 18 03876 1 Master Cylinder Cap w Diaphragm O ring 19...

Страница 15: ...4 20UNC x 2 00 Hex Head Bolt 20 00057 4 1 4 Spring Lock Washer 21 12191 95 1 Outer Case 22 09153 1 Replacement Master Cyl Gasket ONLY 23 11190 1 Master Cylinder Not sold separately 5672 Master Cylind...

Страница 16: ...the transparent container use the Emergency Lever to pump the Master Cylinder as long as air bubbles continue to leave the hose When the bubbles stop close the bleeder valve move to the next wheel and...

Страница 17: ...gh cross slot in top of outer case 21 e To install new emergency lever press pushrod assembly rearward and hold it there while putting emergency lever through cross slot in top of outer case Emergency...

Страница 18: ...liver or ship part to its factory or authorized dealer Any defective part will be repaired or replaced and returned to you or your authorized dealer free of charge Any part returned to warrantor and f...

Страница 19: ...on on how long an implied warranty lasts so this limitation may not apply to you 6 Limitation of Consequential Damages Warrantor s responsibility under this warranty extends solely to repair or replac...

Страница 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...

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