MEGA Corp. MAC-INSP-RSP-5 - Manual (Page 14)

3-1
MAC/MAT-INSP-RSP-5
4 Feb 2014
SECTION 3
Special Inspections
Contents
DESCRIPTION
This section contains special inspection requirements
for a specific system after use, an unusual event or
storage.
FIRE SUPPRESSION SYSTEM
AFTER USE
1. Flush foam concentrate supply hose, water
cannon and nozzle with fresh water.
2. Adequately lubricate adjustable nozzle (if
equipped) for smooth operation.
3. Inspect foam concentrate hose for signs of
collapsing, kinks, wear or leaks.
4. Wash down all MAC and vehicle surfaces that
were exposed to the foam or foam concentrate.
COLD WEATHER OPERATION AND STORAGE
Ice will cause serious damage to water pump, spray
heads, butterfly valves and the water cannon if water
is allowed to remain in the volute case, water piping
or on top of a closed butterfly valve and freeze.
Ensure all water is drained from system when the
temperatures are expected to fall below freezing for
any period of time. Failure to ensure all systems are
drained and free from standing water will result in
shaft, operator, diaphragm, drive motor, water pump,
oil cooler, or butterfly valve damage when operation
is attempted with ice in the housings.
To ensure that all water is drained from tank,
check the following:
1. Park unit on a slight angle to allow water to flow
to the rear of the tank.
2. Observe water level gauge, when it indicates
EMPTY open spray bar petcocks and drain valves.
3. Open petcock on water pump volute case.
4. Remove sump cover.
Take note when removing sump cover, the sump
will contain water. When cover is removed water
will leak from the access hole. Take an out of the
way position to prevent the splashing of water
and debris that may be within the sump and
wetting the individual that removes the cover.
5. If unit is equipped with a hydraulic spray system,
turn system ON.
Engaging/disengaging the water pump above
LOW IDLE may result in water pump component
damage and reduced service life.
6. Turn pump ON, keep engine at low idle.
7. Turn water cannon ON.
8. Turn dump bar ON.
9. Turn drain ON.
10. Park water cannon nozzle DOWN.
11. If unit is equipped with a pneumatic spray
system, turn system ON.
12. Park water cannon nozzle DOWN.
13. Turn water cannon ON.
14. Turn dump bar ON.
Description .........................................................................3-1
Fire Suppression System................................................3-1 Cold Weather Operation and Storage......................3-1