60-38 Maintenance - 250 Service Hours VX30/VX50 Gen3/ECO50 Vacuum Systems
Brakes, Electric - Test
Electrical current from the tow vehicle controls the brakes. To function properly, the brakes must be correctly
adjusted, and the electrical components must be reliable.
Step 1: Eng
age brakes while coasting at 20–30 mph (30–50 km/h) in a traffic-free area. The trailer braking
force should easily be noticed in the tow vehicle.
Step 2: If not
operating properly, adjust brakes (see following section) and check the following electrical
components:
• Check all wire connections.
• Check trailer plug for corrosion.
• Check magnets for wear or shorting
(perform while adjusting brakes).
• Check automatic brake controller.
Brakes, Electric - Adjust
Step 1: Jack one wheel up off the ground. Block machine to prevent it from falling.
Step 2: Remove dirt
plug (A) in backing plate.
Step 3: While
spinning the wheel, turn adjuster screw (B) counterclockwise until
the wheel has a heavy drag. Then turn adjuster screw clockwise only until
wheel turns freely.
Rotate wheel only in the direction of
forward rotation when adjusting
brakes.
The adjuster screw may be turned with a screwdriver or with a standard
brake adjusting tool.
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