GMC 2010 T-Series Owner's Manual page 198

5-50
6. Tilt the cab all the way
forward until the cab
support under the cab
locks fully.
A. Safety Lock Pin
B. Cab Support
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.
WARNING:
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.
WARNING:
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.