Elkhart Brass Vulcan 8593-xx EXT - Manual (Page 26)

Page 26
e) Press and release the oscillate button to engage the oscillation function.
f) The monitor will oscillate between the limits until the oscillation button is pressed
again. Pressing the left or right button on one of the controls will also stop the
oscillation.
For safety reasons, once oscillation has stopped the oscillation limits need to be reprogrammed
before it can be re-engaged. The nozzle fog, stream, and discharge elevation functions can be
operated while the monitor is oscillating.
C. Manual Override
In the event of power failure to the monitor, the motors may be manually activated. To operate a
function manually, simply apply a ¾” ratcheting type wrench (either socket type or ratcheting
box end type) to the hex fitting on the motor shaft.
Warning:
Using the horizontal override nut when the power to the control module is off or the horizontal
motor is disconnected will move stow position from its original programmed position. See
section titled Limit Setup and Stow Position Programming to realign stow position even if stow
feature is not utilized.
Caution:
Do not use impact drivers to operate manual override nuts. Serious damage to motor gear heads
will result.
*Note: The SM-1250E and SM-1250BE nozzles have a unique ball screw drive that allows the
motor to “free wheel” at the end of pattern travel in either the straight stream or wide fog
positions. No slip clutch or current limiting feature is used with the nozzle drive.
D. Storing the 8500 and 8593 Monitor
Elkhart Brass recommends that a stow position be set and the stow routine be utilized to place
the monitor in it stowed position after each use.
The monitors have a user selectable stow position (see V.DLimit Setup and Stow Position
Programming for setting instructions). After the water supply to the monitor has been turned off,
the operator can simultaneously press the “Stow” and “Fog” buttons on the primary panel mount
Transmitter (buttons must be held down for a minimum of 3 seconds). The monitor will
automatically rotate to the stow position previously programmed and either lower or raise the
discharge to 45

below or 90

above horizontal (depending on the position of switch A position 1
on the receiver board). The optional “stow indicator” will turn off after monitor reaches stow
position. The OEM primary transmitter will operate using the same inputs as listed for the
primary panel mount transmitter provided the necessary switches are wired.
The 8500-01 EXT and 8593-01 EXT monitors do not allow for user selectable stow position.
Activating the stow function causes the monitor to rotate to the straight-ahead position with the
discharge at 0

elevation