Case WX145 Operator's Manual page 145

SECTION 3
UPPER STRUCTURE SLEWING
Switch the upper structure holding brake into the
automatic mode by depressing button (1) until lamp
is lit up (this mode is selected automatically on
engine start-up).
Activate the pilot control by pushing forward the
safety lever (3).
Unlock the upper structure.
To slew the upper structure to the right push hydrau-
lic control lever (2) to the right.
To slew the upper structure to the left push hydraulic
control lever (2) to the left.
The slewing speed increases the further the hydrau-
lic control lever (2) is moved to the right or to the left.
UPPER STRUCTURE HOLDING
The maximum slewing speed depends on the slew-
ing features set by button (4):
- lamps off: low slewing speed;
- left lamp on: standard slewing speed;
- lamps on: high slewing speed;
- intermittent lamps: fault message.
UPPER STRUCTURE BRAKING
The slewing movement of the upper structure is
braked when the hydraulic control lever returns to
neutral position.
By means of push-button (4) you can set the braking
effect of the upper structure holding brake. The time
of braking from lever release to upper structure stop
can be suited to individual requirements according
to 3 levels.
- Lamps off: soft braking of upper struc-
ture slewing movement.
- Right lamp on: standard braking action.
- Lamps on: hard braking of upper struc-
ture slewing movement.
Countering (i.e. shifting the slewing control lever in
the opposite direction) enhances the braking action
even further.
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WARNING
Both lamps flash at intervals if a fault occurs in the
system. Push-button (3) operation is disabled. The
switching functions are blocked. In neutral position
of slewing control lever, the slewing braking action
is weaker. If necessary, increase the slewing brak-
ing action by moving the lever to the opposite direc-
tion (countering).
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