Mack CSM 2010, Руководство оператора

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150 OPERATION
MACK T318, T318L and T318LR Shifting Instructions
CAUTION
Make sure air pressure is at least 620 kPa (90 psi) and unit is at operating temperature
before making range shifts. Always start in LO range. This also applies to dynamometer
testing. When the truck is stationary, do NOT shift into HI range and then start moving
the truck. Otherwise, damage to the synchronizer may result.
Note: When making a SPLIT SHIFT FROM GEAR TO GEAR, the splitter switch must not
be actuated, either up or down, until the main box is in neutral.
When making a SPLIT SHIFT IN THE SAME GEAR to a preselected gear, especially under
heavy load, the splitter will not shift until the driveline torque is relieved. This can be done
by depressing the clutch pedal and releasing it, or by backing off the throttle and reapplying
it. The splitter switch must not be actuated, either up or down, until IMMEDIATELY before
the driveline torque is relieved.
When making a RANGE SHIFT, it is important to preselect the range shift. This means that
the range selector must be moved to its next position (up or down) BEFORE the gearshift
lever is moved. Then move the gearshift lever through NEUTRAL to the next desired gear
position. As the lever passes through NEUTRAL, the range shift will be completed.
Upshift — For purposes of explaining the shifting procedures through ALL gears, assume
that the vehicle has a full load and will climb a slight grade.
To prepare for moving the vehicle, position the shift lever in NEUTRAL, select LO-split
using the splitter switch, and select LO range using the range selector.
Refer to the shift pattern and move the shift lever to LO speed gear (LO range, LO-split).
Apply accelerator and engage the clutch, then accelerate to governed speed. Select HI
on the splitter switch (preselect) and release the accelerator pedal long enough for the
split shift to complete. Reapply the accelerator. Shift through first LO-split, first HI-split,
second LO-split, second HI-split and so on, until you reach fourth HI-split. Remember
to double-clutch between gears.
To continue while in fourth gear HI-split, flip the range selector up to HI range (preselect),
and as you move the shift lever through NEUTRAL to fifth gear, move the splitter switch
from HI to LO. As the lever moves through NEUTRAL, the range shift to HI will be
completed. You are now in fifth gear LO-split (HI range). Continue shifting to fifth HI-split,
sixth LO-split, sixth HI-split and so on, until you reach eighth HI-split. Remember to
double-clutch between gears.
To upshift from LO-split to HI-split (in the same gear), accelerate the engine to governed
speed, move the splitter switch to HI (preselect), depress the clutch and back off the
accelerator pedal. Reapply the accelerator and engage the clutch when the audible shift is
heard, or when the engine speed falls by approximately 200 rpm. Depressing the clutch