Dump Trailers - Owner's Manual

Inspections And Lubrication

Figure 8-1 Block Up Dump Body

6. Slowly lower the dump body onto the blocking.

7. Place the hydraulic hoist control in the hold position.

8. Stop truck engine and remove the key.

8.2 EVERY DAY Perform the inspections and checks before towing trailer. This list is also covered in the pre-trip inspection:

Note: The following inspections do not require the dump body to be raised. • Check all lights for proper operation. • Check that ABS light on street side rear corner of the trailer is not illuminated. • Check that all safety decals are in place and in good, readable condition. • Check that all reflectors and in place and in good condition. • Check air pressure on all tires. Air pressure is listed on the Certification/VIN tag. • Check and inspect all tires. If a tire has a bald spot, bulge, cut or cords showing, replace the tire(s) before towing trailer. • Check wheel lug torque. See Section 9-3. • Check the wheel hubs for signs of lubricant leakage. • Check for broken or missing leaf springs or verify that air suspension springs are inflated. • Check electrical harness and air hoses from truck for damage. • Listen for air leaks in hoses and air suspension (if equipped). • Check brakes for wear and verify the brakes function properly. • Check the oil level in hydraulic oil reservoir. Add hydraulic oil if needed.

Repair or replace any worn, damaged, leaking, broken or non-functioning items before towing the trailer.



1. Inspect the trailer body and chassis for damage daily.

2. Inspect all of the fasteners, welds and structural frame members for bending and other damage, cracks, or failure. Repair or replace any damaged fastener and repair the frame member. If you have any questions about the condition or method of repair of fasteners or frame members, get the recommendation of, or have the repair done by MAC T railer or your dealer. Welds must be repaired by an qualified technician.


Made with FlippingBook Annual report maker