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VI. M
AINTENANCE
A. Preventive Maintenance
The complete monitor and control system should be inspected during each apparatus check.
Careful inspection for damage to the monitor, valve, or nozzle is especially important after
use of the
RF Monitor in emergency operations.
1. Operate all possible functions from each control point.
2. Flow water to check the nozzle pattern. If the pattern is disrupted, clear the debris.
The 5000-04 nozzle has a flush feature to clear the debris. If the obstruction still
remains, remove the nozzle and check for debris lodged between the nozzle stem and
body.
3. During nozzle flow test, inspect monitor swivel joints and water valve for leaks.
4. Inspect all exposed wiring for signs of damage.
Note:
Grease fittings are provided for the up-down and left-right rotation joints, routine
greasing should be performed to expel water & other contaminants that can get into the
rotation joints. If the monitor is exposed to a high level of radiant heat for a prolonged period,
it may be possible for the factory grease to thin and run out of the rotation joints. In such an
event, fresh grease should be applied. Use Mobilux EP2 or equivalent. Start at one end of
travel range and apply grease through the fitting of each joint until fresh grease comes out
the joint. Repeat every 30 degrees throughout the full range of travel on each rotation joint.
Wipe off any expelled grease when done.
B. Understanding the RF Receiver/Control Module Circuit Board LEDs
LED Notations
DS1 (Figure 13) - Lights when either nozzle direction is engaged.
DS2 (Figure 13)
– Lights when either of the VALVE OPEN/CLOSED buttons are pushed.
DS3 (Figure 13)
– Comes on when the UP or the DOWN button is depressed.
DS4 (Figure 13)
– Comes on with any horizontal movement.
DS5 (Figure 13)
– See Table 2.
Table 2
DS5 Status LED (Indication VS. Meaning)
Reference
Indication
Meaning
1
On solid when monitor stops
Motor has reached stall current and
performing normal shutdown
2
Blinks 6 times at 1 second rate
during startup
Visual indication that the controller is
initializing
– normal operation during
power up
3
Blinks 6 times at 1 second rate
during startup then blinks at ¼
second rate continuously
SW4 (Figure 13) in wrong position
– must
be in certain positions for proper
Sidewinder operation
