Elkhart Brass Sidewinder 7161 EXM UHP - Manual (Page 23)

EXM UHP– Monitor Callout Drawing
23
Maintenance Instructions -
In this section, the reader will be instructed on how to properly care for their EXM system.
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
EXM
Monitor in emergency operations.
 Operate all possible functions to ensure that each works normally
 Flow water to check the nozzle pattern
o If the pattern is disrupted, clear the debris
o If the obstruction still remains, remove the nozzle and check for debris lodged between the
nozzle stem and body
 During nozzle flow test, inspect monitor swivel joints and water valve for leaks
 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.
Caution:
Do not use high pressure spray to clean the EXM or any
EXM controllers. Using high pressure spray can damage seals and lead to
serious damage of electrical components.
B. Understanding System LEDs
 Monitor Controller LEDs
o When the monitor is first powered up all LEDs turn on for approximately 1 second, then only the
Power LED remains illuminated
o When the monitor control box receives a right or left command, the horizontal LED illuminates.
o When the monitor control box receives an up or down command, the vertical LED illuminates.
o When the monitor control box receives a fog or stream command, the nozzle LED illuminates.
o At this time no function illuminates the auxiliary LED on the monitor control box.
o When in Setup Mode, the blue status LED on the monitor control box will illuminate