8. I NSPECTIONS A ND L UBRICATION Routine inspections, maintenance and service must be performed on your trailer on a regular basis to insure safe and reliable operation. Inspections can be performed by a person trained in spotting potential problems. Service and repairs must be performed by a trained, qualified technician.
Note: In addition to this manual, also check the relevant component manufacturer's manual.
Before performing trailer Inspections, service or maintenance: • Park trailer on firm, level surface. • Set parking brakes, turn truck engine off and remove ignition key. • Chock tires if brakes are to be released. • Support trailer with properly rated and placed stands.
8.1 RAISE AND SUPPORT DUMP BODY
Risk of crushing.
A falling dump body can cause death or severe injury.
Block up the empty, raised dump body before performing any under-body inspection, maintenance or service.
NEVER block up a loaded or partially loaded dump body. Empty dump body before blocking up.
Use hardwood blocks only.
To access the hydraulic cylinder on a frame style dump trailer, the dump body must be partially raised and supported with hardwood blocking. Perform the following steps to block up the dump body.
Note: Lubricating the grease fittings on the hydraulic cylinder is done with the dump body down.
1. Connect truck to trailer.
2. Empty the dump body. Never attempt to block up a loaded or partially loaded dump body.
3. Check for clearance overhead and raise dump body to desired height.
4. Place one hardwood block minimum 4” x 6” x 7’ long between the frame and body rails as shown in figure 8-1.
5. Place two hardwood supports between the tires, up into the floor cross members. See figure 8-1.
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