Elkhart Brass Stinger RF8297 - Manual (Page 26)

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VII. M
AINTENANCE
A. Preventive Maintenance Procedures for Stinger RF Upper Assembly
Preventive Maintenance
The complete monitor and control system should be inspected during each apparatus
check. Careful inspection for damage to the monitor or nozzle is especially important
after use in emergency operations.
Operate each function (left-right, up-down, stream-fog, stow) with each of the
transmitters.
Remove nozzle and check for debris lodged between the nozzle stem and body, or in the
stream shaper inlet. Remove debris.
During nozzle flow test, inspect monitor swivel joints for leaks.
With the water off, operate the stow function, looking for any possible obstructions and
check the final stow position.
Inspect all exposed wiring for signs of damage.
Note: Although a grease fitting is provided for the up-down gear case, routine
greasing should not be necessary. 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 gear case. In such an event, fresh grease should be applied.
After Each Use:
Check for proper latch pin operation. To do this turn the upper unit upside down
and push each latch pin up into its respective hole. It should move smoothly,
easily, and far enough into its hole that no part of the pin is exposed in the large
bore. Using the twist release mechanism, make sure that the latch pins retract
fully into their holes and are not exposed in the large bore when the grip is twisted
to its limit. Release the twist grip and check to be sure the latch pins both return
to the fully latched position by checking the visual indication windows in the
latch pin caps (See Figure 16, Pg.18). With the twist release stop pin pulled, twist
and release the grip several times. The grip should turn smoothly when released.
Pull and release the twist release stop pin to make sure it is working freely. Pull
the twist release stop pin and rotate the twist handle to the fully released position.
Release the stop pin and then release the twist handle. The mechanism should
quickly and smoothly return to the fully latched position and the twist release stop
pin should reset to the locked position
The twist handle has nylon bushings, the cable guides are plastic lined, and the
latch pin caps and holes are hard coated and Teflon impregnated to provide years
of smooth operation without lubrication. Lubrication will attract dirt and possibly
cause the latch pin mechanism to hang up, creating a severe safety hazard.
Warning:
If any part of the latch pin mechanism hangs up or does not seem to work correctly, DO
NOT use the monitor. DO NOT lubricate any part of the latch pin mechanism. Contact
Elkhart Brass for further instructions.