Labrie Top Select, Maintenance Manual, Page: 74 / 145

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Tailgate and Body Maintenance
Tailgate and Hinge Inspection
Tailgate hinge pins must not have any sign of wear or metal fatigue. The retaining bolts must be kept
tight. The tailgate rubber seal must not show any sign of damage. Replace the seal if necessary.
Figure 6 - 2 Tailgate hinges and cylinder
Replacing Tailgate Cylinder
To replace a faulty tailgate cylinder with a new one, proceed as follows:
1. Ensure the parking brake is applied.
2.
Start the truck’s engine.
3. Turn ON the hydraulic pump.
4.
Raise the tailgate and install the safety prop (see Tailgate Safety Prop on page 16).
Having the tailgate slightly raised and resting on the safety prop allows you to have better access
to the different parts of the cylinder.
5. Turn OFF the hydraulic pump.
6.
Stop the engine.
7. Apply the Lockout/Tagout procedure (see Lockout/Tagout Procedure on page 22).
8.
Disconnect the hydraulic hoses (see Figure 6 - 3).
9. On the cylinder base, remove the lock bolt and the pin (see Figure 6 - 3).
10.
Attach the cylinder head to an appropriate lifting device (see Figure 6 - 4).
11. On the cylinder head, remove both the lock bolt and the pin to release the cylinder (see Figure
6 - 4).
12. Carefully lift the cylinder out of the unit and to a maintenance facility area.
13.
Carefully lift a new cylinder and set it into place on the unit.
14. Reverse the removal steps to reinstall the new cylinder.