Demco 800 BUSHEL Dokumentacja Pobierz pdf (Strona 11)

Page 11

Hitching The Wagon

5. Be sure Pin and hitch rating is equal to or greater than

the wagon GVWR.

6. Connect the emergency chain hook to towing vehicle.

7. If the emergency brake lever is accidentally applied

while unhitching, release the lever by pulling it for-

ward and with a screwdriver lift up the front of the flat

spring until it releases the lever. Many times these

parts are damaged when this happens. An inspection

of the lever, flat spring, and chain with S-hooks is

required and any damaged parts must be replaced.

Loosen the bleeder valve one turn and pump the

master cylinder until the air bubbles stop coming out

of the hose in the glass container, then close the

bleeder valve and repeat the process on the other

wheels. (Watch the fluid level in the master cylinder

and refill so level does not fall below 1/2 full). Refill

master cylinder every 4 or 5 strokes. Dispose of

contaminated brake fluid according to local regula-

tions.

4. After bleeding is completed, refill the master cylin-

der and put the filler cap on securely . Replace the

flat spring behind the emergency lever.

To test the brakes use a wrench or vise grip and

clamp onto the top of the emergency lever to lengthen

it. Pull lever forward until lever locks on the second

click. The lever should be approximately straight up

and down. Now try to rotate each of the four wheels

in a forward rotation. You should not be able to

rotate the wheels forward. If you can, then release

the emergency lever by wedging a screwdriver

under the flat spring behind the lever and set each

wheel brake adjustment up 2 or 3 notches. Then

repeat the test procedure.

MAINTENANCE

1. Before towing check to be sure master cylinder is full of brake fluid and check lines for leaks. Inspect the actuator

for bent or worn parts. Replace parts if necessary. Make sure the actuator mounting bolts are tight.

2. Periodically check braking quality, as described above. Failure to do so can result in loss of braking.

3. If units are used in corrosive conditions the actuator and wheels should be washed out with high pressure water.

When actuator parts are dry, oil all moving parts.

Replacing The Emergency Lever

Step one: Remove the lever guide and flat spring. Take the S-hook off the lever, take the lever out from the

inside.

Step two: Install the new lever from the inside and up through the slot. Replace the new flat spring and the

lever guide. Replace the push rod and master cylinder and new gasket.

Step three: Take the new chain and fasten the S-hook to the lever by squeezing the hook shut with a pliers.

Check the master cylinder and fill with DOT 3 or 4 brake fluid.

Step four: Re-bleed brake system.

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