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Dongfeng Military Truck Adjustment and Maintenance - Adjustment of Chassis and Common Troubleshooting - Wheels Brake

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Sixth wheel brake

First, the adjustment of the brake clearance (EQ2100E6D, EQ2102G)

1. Remove the cover of the brake drum inspection hole.

2. Press the brake adjustment arm locking sleeve with a wrench, clockworm axle, so that the two brake ho holes are attached to the inner surface of the brake drum.

Turn the brake adjustment arm worm 1/2 ~ 2/3, so that the adjustment arm locking sleeve can jump out under the action of the spring force, and the inner hole used is consistent with the hexagle head of the worm shaft. At this time, the gap between the brake shoe and the brake drum is about 0.7 mm. The brake drum should be free to rotate, and it is not rubbed with any parts.

Precautions

When adjusting the brake gap, the arm, if you find a locking package, lock the sleeve can't go, etc., allowing the pliers to gently tap the wrench on the locking sleeve, or the screwdriver can be latched Gently pull out.

015 1015


Second, fault and exclusion method

1, the brakes are soft

The main reason for braking softness is insufficient braking force. May be related to the following factors:

1) The brake gap is too large, causing the brake room push rod stroke, resulting in decrease in the thrust of the air chamber pusher, and thus the braking force is small, and the brake gap should be adjusted in time.

2) The surface of the friction film is contained with oil or hub oil.

3) The brake in the water.

4) The brake tracheal pipeline is blocked.

2, other fault forms of braking system (see below)

Fault mode

cause of issue

Troubleshooting

Air pressure

Parts or pipelines

Electromagnetic valve

Separation switch is not closed when no trailer

Four-circuit protection valve failure

The air compressor is insufficient or the air intake is blocked.

Uninstall valve failure

Air compressor does not work

EQ2081E series air compressor belt loose, slip or break

Check correction

Check correction

Off separation switch

replace

Check correction

replace

Inspection and repair

Adjust or replace

High gas barrel is too high

Pneumatic regulator failure

Pressure gauge fault

Adjust or replace

replace

Pressure table pointer during braking decline

The brake pipeline has a sudden rupture or an air chamber film suddenly ruptured double cavity brake valve fault.

Quick valve, relay valve failure

Brake line

replace

Repair or replace

Repair or replace

Check correction

This article is reproduced from: Dongfeng Truck Corporation Heavy Car Factory - \"Military Dongfeng off-road vehicle Adjustment and Maintenance Manual\"

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