Vestil EPT-30 - Manual (Page 42)

42
Curtis PMC 1207/1207A Manual 35
4
4 — MAINTENANCE
MAINTENANCE
There are no user-serviceable parts inside Curtis PMC 1207 and 1207A control-
lers. No attempt should be made to open the controller. Opening the
controller may damage it and will void the warranty.
However, it is recommended that the controller exterior be cleaned periodi-
cally, and—if a handheld programmer is available—this periodic cleaning pro-
vides a good opportunity to check the controller’s diagnostic history file. It is also
recommended that the controller’s fault detection circuitry be checked whenever
the vehicle is serviced.
The 1207/1207A controller is inherently a high power device.
When working around any battery powered vehicle, proper
safety precautions should be taken. These include, but are
not limited to: proper training, wearing eye protection, avoid-
ing loose clothing and jewelry, and using insulated wrenches.
CLEANING
Although the 1207/1207A controller requires virtually no maintenance if prop-
erly installed, the following minor maintenance is recommended in certain
applications.
1. Remove power by disconnecting the battery.
2. Discharge the capacitors in the controller by connecting a load (such as
a contactor coil or a horn) across the controller’s B+ and B- terminals.
3. Remove and dirt or corrosion from the bus bar area. The controller
should be wiped clean with a moist rag. Allow it to dry before recon-
necting the battery.
4. Make sure the connections to the bus bars are tight. Use two well
insulated wrenches for this task in order to avoid stressing the bus bars.
DIAGNOSTIC HISTORY
The handheld programmer can be used to access the controller’s diagnostic
history file. Connect the programmer, press the
MORE INFO
key, and then—while
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C A U T I O N