D20x22 Series II Navigator HDD
Overview 30-51
Setting Manual Pressure Limits
(1)
Manual Limit Key
(2)
Rotation Limiter Light
(3)
Thrust Limiter Light
Press
(1)
once . . . . . . . . . . . . . . . enable both Thrust/Pullback and Rotation limits;
. . . . . . . . . . . . . . . . . . . . . . . . Rotation
(2)
and Thrust/Pullback
(3)
lights are ON
Press
(1)
a second time . . . disable Rotation limit, Thrust/Pullback limit enabled;
. . . . . . . . . . . . . . . . . . . . . . . Rotation light
(2)
OFF, Thrust/Pullback light
(3)
ON
Press
(1)
a third time . . . . . . . disable both Thrust/Pullback and Rotation limits;
. . . . . . . . . . . . . . . . . . . . . . . Rotation
(2)
and Thrust/Pullback
(3)
lights are OFF
When the
Manual Limit Key
(1)
has been pressed, the
Rotation Limiter Light
(2)
and
Thrust Limiter Light
(3)
will turn ON.
The following table shows the maximum and/or range of thrust and rotation values which can be manually set:
Maximum Value/Range of Rotation and Thrust Pressure Limits (psi/bar)
Manual Limit Key
R.A.T.T.
Thrust
Rotation
OFF
OFF
3300/228
3300/228
ON
OFF
300–3300/20–228
300–3300/20–228
OFF
ON
300–3300/20–228
Fixed*
ON
ON
300–3300/20–228
Fixed*
* Rotation limited by range of rotation gearbox (Low or High)
1
2
3
