Safety 27
7. Put both tailgate clamps back to their lock position.
B. For this test, proceed as follows (on units equipped with the optional hydraulic tailgate-
locking mechanism):
1. Make sure that the body is empty.
2. Start the truck.
3. Engage the pump.
4. Using the tailgate unlatch button on the body left-side corner near the access door (see Figure
2-10), unlock the tailgate.
5. Using the TAILGATE lever (see Figure 2-4), raise the tailgate by a few feet.
When the tailgate is raised, the in-cab buzzer and the backup alarm should sound and the
T
AILGATE OPEN indicator light on the dashboard (or on the console) should turn on. Check they
are all working. If for some reason any of these elements are not activated, report this to your
supervisor or maintenance personnel.
6. Using the TAILGATE lever, lower and close the tailgate.
The in-cab buzzer and the backup alarm should stop sounding, and the T
AILGATE OPEN
indicator light should go off.
7. Using the tailgate latch button on the body left-side corner near the access door (see Figure
2-10), lock the tailgate.
Adjusting the Tailgate Open Proximity Switch
If the Tailgate Open Proximity Switch Test fails, it may be that the proximity switch (see Figure 2-13)
is misaligned.
Figure 2-13
Tailgate open proximity switch
Danger!
Prior to raising the tailgate, make sure that no one is standing behind the vehicle and that
the body is empty.