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MAINTENANCE INSTRUCTIONS
Your Bumper Monitor and nozzle should be inspected prior to and after each use, to ensure it is in good operating condition.
Periodically, an unanticipated incident occurs where the Bumper Monitor is misused in a manner that is inconsistent with standard
operating practices and those listed in IFSTA. A partial list of potential misuse includes:
•Operatingabovemaximumratedpressureandow.
•Notdraining,andallowingwatertofreezeinside.
•Prolongedexposuretotemperaturesabove130°F,orbelow-25°F.
•Operatinginacorrosiveenvironment.
•Havingthenozzlehitaxedobjectduringoperatingortransportation.
•Othermisusethatmightbeuniquetoyourspecicenvironment.
Alsotherearemany“telltale”signsthatindicaterepairisinorder,suchas:
•Controlsthatareeitherinoperableordiculttooperate.
•Excessivewear.
•Poordischargeperformance.
•Waterleaks.
If any of the above situations are encountered, the Bumper Monitor should be taken out of service, repaired, and tested by a qualified
technician before placing it back in service.
MOTOR REPLACEMENT
To replace either the horizontal or vertical rotational motors:
1. Disconnect Power from the unit.
2. Loosen and remove the four socket screws (Item 49 on the Parts List) from the gearbox housing (19).
3. Slowly remove the motor assembly (15) and gearbox housing (19) from the unit.
IMPORTANT: Make sure the internal gear, (Item 25 on the Parts List), remains in place, (hold with a
screwdriver), to avoid gear alignment problems.
4. Loosen and remove the four socket head capscrews (21) from the inside of the gearbox housing that hold the housing
and the motor assembly together.
5. Remove gearbox housing (19) from the motor assembly (15).
6. Replace o-ring seal (18) on the gearbox housing (19).
7. Attach the new motor assembly (15) to the gearbox housing (19) making sure all four screws (21) are tight.
8. Install the motor and gearbox housing assembly to the unit making sure all four socket screws (49) are tight. It may be
necessary to rotate the motor slightly to get the motor gear to line up with the gears inside the gearbox.
9. Restore power to the unit.
10. Test the operation of the unit.
Call Akron Brass Customer Service Department if any problems are encountered.
Symptom Potential Cause What to Check Solution
Totally Inoperative Lack of Power Remove the Power/Valve Cable connector from the
control box mounted on the side of the monitor/turret.
Check for voltage approximately equal to vehicle battery
voltage between pins 1 (Pos.) and 2 (Neg.) of the cable’s
connector.
If no measurable voltage is present, insure proper
DC power is applied to pins 1 and 2.
Damaged Control Box Remove the CAN Cable connector from the control box
mounted on the side of the monitor/turret. Check for
voltage approximately equal to vehicle battery voltage
between pins 1 (Pos.) and 2 (Neg.) of the control box
connector.
If no measurable voltage is present, return the
Control Box/Harness for replacement.
Insert an empty USB Flash Drive (with a status LED) into
the USB connector. Check for lighting of the Flash Drive
status LED.
If the Flash Drive status LED does not light, return
the Control Box/Harness for replacement.
No CAN Communication Check status LED’s located near the Joystick connector for
power and CAN activity.
If no status LED’s are lit, check CAN cable continu-
ity end to end (1 to 1, 2 to 2, etc.), and retest.
If only Power status LED is lit, return the Joystick
for replacement.
If only Power and Transmit LED’s are lit, return the
Control Box/Harness for replacement.
