8
Eaton MEDC technical manual
DB4BM LOUDSPEAKER TECHNICAL MANUAL
TM277.3
www.eaton.com
8
Eaton MEDC technical manual
DB4BM LOUDSPEAKER TECHNICAL MANUAL
TM277.3
www.eaton.com
MAINTENANCE
During the working life of the unit, it should require little maintenance however; if abnormal or unusual environmental
conditions occur due to plant damage or accident etc., then visual inspection is recommended.
WARNING
The front driver cover of the unit, situated underneath the thermoplastic main flare, which encloses the loud
speaker driver shall not be opened as it is not for field installation or maintenance use .
See below diagram for details of the flameproof joints found in the unit.
WARNING
The flameproof joints details below are not intended to be repaired .
Corrosion inhibiting grease, such as petrolatum or soap-thickened mineral oils, may be applied to flameproof joint
surfaces before assembly. The grease, if applied, shall be of a type that does not harden because of ageing, does not
contain an evaporating solvent, and does not cause corrosion of the joint surfaces. Verification of suitability shall be in
accordance with the grease manufacturer’s specifications.
If the unit requires cleaning, the only clean exterior with a damp cloth to avoid electro-static charge build up.
If a unit fault should occur, then the unit can be repaired by MEDC
If you acquired a significant quantity of units, then it is recommended that spares are also made available. Please discuss
your requirements with the Technical Sales Engineers at MEDC.
