GMC 2005 T-Series Owner's Manual page 201

7. Remove the safety lock
pin from its retainer on
the cab support.
Insert the pin into the
hole in the cab
support by aligning the
tab with the slot.
CAUTION:
{
A cab not properly locked in the tilted position
could fall, causing serious injury. To ensure
that the cab is securely locked in position and
will not move, the safety lock pin (A) must
always be inserted into the cab support (B)
when the cab is in the tilted position.
CAUTION:
{
Things that burn can get on hot engine parts
and start a fire. These include liquids like fuel,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or
others could be burned. Be careful not to drop
or spill things that will burn onto a hot engine.
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