2-21. OPERATING ON STEEP GRADES (CONT).
CTIS may not engage properly if CTIS START button is pressed
For a detailed explanation of the CTIS, refer to Para 2-24.
Allow time for CTIS adjustment.
With truck stopped, turn CTIS rotary selector switch (1) to MUD, SAND
AND SNOW and then press and hold the START switch (6) for
approximately one second. When the CTIS indicator light (7) remains solid
green gradually apply the throttle and release brakes as traction allows. If
wheels start to slip, stop the truck and go to Step (8).
When using EMERGENCY position on CTIS, top speed
should not exceed five mph and distance travelled should not
exceed five miles. Care must be exercised, as steering
response is limited due to full drive line lock-up, or damage to
equipment may result.
With the truck stopped, turn the CTIS rotary selector switch (1) to
EMERGENCY. Do not press the START button. Gradually apply the
throttle control and release brakes as traction allows.
After reaching the top of the grade, stop the truck and disengage the
TRANSFER CASE LOCK-UP (8). Select the appropriate transmission
gear and the CTIS setting for the terrain.