Elkhart Brass Sidewinder RF 8494 - Manual (Page 22)

Page 19
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:
Although grease fittings are provided for the up-down and left-right gear cases,
routine greasing should not be necessary. If the monitor is exposed to high level of radiant
heat for a prolonged period, it may be possible for the factory grease to thin and run out of
the gear cases. In such an event, fresh grease should be applied. It is recommended that
Mobilith AW2 grease be used to lubricate the monitor gearing.
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
4 Blinks at ½ second rate Truck battery voltage <8 volts - light will
blink until power is lost or is restored –
early power fail (EPF) indication