Controls and Operating
3-50
Drop Box
The drop box is a remote mounted two speed transfer gearbox, taking
drive from the engine and transmission and feeding it to the front and
centre axles via a lockable differential. It has self contained hydraulic gear
selection and differential locking mechanisms.
The dropbox is equipped with two gear ratios; high and low. To select
the low ratio use the following procedure:
1. Bring the vehicle to a stop with the service brakes. Maintain pressure
on the service brake.
2.The Transmission is in neutral.
3.The park/emergency brake will now automatically apply.
4. Engine rev/min must be less than 750.
5. Press the bottom of the low ratio request switch.
6. Low ratio will be activated.
7. Release the service brake pedal.
8. The park/emergency brake will automatically disengage when the drive
is selected.
To return to high ratio use the same procedure except on step 5 press
the top of the low ratio request switch.
High Ratio:
Used where high speed is required.
Low Ratio:
Should only be used in adverse conditions to give more
control.
NOTICE
:
In electrical failure drop box will fail to the last preselected ratio.
NOTICE:
The transmission will inhibit the selection of any gear and park
brake will not release until the change is completed.
NOTICE:
If the ratio does not fully engage during selection, movement of
the steering wheel left and right should allow the gear to mesh,
engaging the desired ratio.
HI
LO
MOT0033
Содержание TA400
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