5th Wheel
Grouping: Individual Course
Overview: 5th Wheel training involves 5th wheel coupling that provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. Some recreational vehicles use a 5th wheel configuration, requiring the coupling to be installed in the bed of a pickup truck as a towing vehicle. The coupling consists of a kingpin, a 2-or-3 1⁄2-inch (50.8 or 88.9 mm) diameter steel pin on the front of the semi-trailer, and a horseshoe-shaped coupling device called a 5th wheel on the rear of the towing vehicle.
- Pre- Requisites: Grade 9
- Duration: 3 Days
| Training Week 1 | Assessment |
|---|---|
| 3 Days | 5th wheel |
This course covers
- Lubrication
- Inspections and adjustments
- Correct any improper adjustment
| Topics Covered | |
|---|---|
| 1 | Cushion ring bolt |
| 2 | Retainer |
| 3 | Cushion ring insert |
| 4 | Lock jaw pivot pin |
| 5 | Collar |
| 6 | Bracket pin |
| 7 | Tab washer |
| 8 | Hex bolt |
| 9 | Plate spring |
| 10 | External tooth lock washer |
| 11 | Hex bolt |
| 12 | Release handle |
| 13 | Pivot bolt assembly |
| 14 | Locking bar bolt assembly |
| 15 | Lever with bushing |
| 16 | Locking bar |
| 17 | Lock jaw |
| 18 | Lock jaw spring |
| 19 | Eye bolt |
| 20 | Ring |
| 21 | Guide piece |
| 22 | Adjusting screw with hex nut |
| 23 | Double tension spring |
| 24 | Lubricating kit |