Kenworth T410, Руководство водителя

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Page 186 CAT: 8612 November 2019
OPERATING INSTRUCTIONS
When the vehicle is going down hill, the wheels will not slow down, but will
tend to speed up, which makes gear synchronisation almost impossible.
As a result, the axle is neither in HIGH nor LOW range and all engine/
driveline retardation is lost. Without engine retardation, it is difficult to slow
the vehicle down and greater stress is put on the brake system.
To avoid damaging your vehicle, shift the axle at slower travel speeds until
you are used to driving with a dual range axle.
LOW to HIGH (Cruising)
When you go from rough terrain to highway driving, shift the axle to the
HIGH range, following this procedure:
1. Be sure the differential is UNLOCKED.
2. Maintain your vehicle speed (accelerator depressed) and move the
Range Selector lever to HIGH.
3. Keep driving with the accelerator depressed until you want the
axle to shift.
4. To make the axle shift, release the accelerator until the axle shifts.
You are now in the HIGH axle range for highway speeds. Shift the
transmission normally to reach your desired cruising speed.
HIGH to LOW (Rough Terrain)
If you need to downshift the axle for more power, or you are driving on
rough terrain:
1. Maintain your vehicle speed (accelerator depressed) and move the
Range Selector lever to LOW.
2. Keep driving with the accelerator depressed until you want the
axle to downshift.
3. To make the axle downshift, release and depress the accelerator
quickly to increase the engine rpm. The axle will shift to LOW range.
4. You are now in the LOW axle range for rough terrain and heavy
loads. Shift the transmission normally to maintain the desired
speed.