MGE UPS Systems SAM Operating And Maintenance Manual page 11

Resetting the service Light Internally (during a maintenance service) -
The service light may be cancelled by resetting internally – refer to data capture section.
This is via the Data connection port on the main PCB. This method allows for the downloading of the stored
data before reset.
Resetting the service Light Externally –
By pressing the Illumination lamp button for 20 seconds, a reset of the data counter is achieved. The stored
data is reset without the facility to save.
Service Maintenance
The following should only be carried out by a fully qualified engineer with the
Carry out the monthly procedure.
•
Poor performance of the unit would indicate the internal pump requires maintenance.
•
Before any work is carried out, disconnect the
•
unit.
Carefully remove the back cover taking care not to pull on any cables. The exhaust tube will require
•
disconnecting to enable the back cover to be removed.
Pump Maintenance - if required
Remove the pump from the outer case.
•
Remove the front cover of the pump.
•
Remove the pump head from the pump casing and examine the piston rings and cylinder for signs of
•
damage and wear.
Inspect the umbrella valve on the cylinder carefully for wear and damage.
•
Inspect the umbrella valve on the piston carefully for wear and damage.
•
Note the valves in each assembly - it is advisable to check one at a time noting how the components
are assembled.
Replace any worn or damaged components as necessary and re-assemble.
•
Return the pump unit to the outer case and re-connect the internal tubing.
•
Service Maintenance Continued
Check the internal and external tubing for ageing or wear. Replace with equivalent tubing where
•
necessary.
Check the internal wiring for ageing or wear. Replace with equivalent material and terminations where
•
necessary.
Check the foam pump pads for ageing and replace where necessary.
•
Examine the mains cable for wear or damage and replace if necessary using equivalent cable.
•
Check the integrity of the labyrinth seal on both faces of the case prior to re-assembly.
•
Replace the back cover. Do not overtighten the rear cover fixings.
•
Examine the collection container for damage. Replace if necessary.
•
Examine the overflow valve float mechanism to ensure that this has free movement.
•
Check the vacuum and flow performance at the collection container as previously described.
•
Fully recharge the battery.
•
Testing - Any dismantling and re-assembly of this equipment - for whatever purpose - must be followed by
testing in accordance with the manufacturers recommendations as specified for Monthly maintenance.
Battery Replacement
The battery is supplied partially charged –
Do NOT misuse the battery.
Do NOT attempt to pull the battery from the case by its leads.
Do NOT use any metal implements such as screwdrivers to prise the battery from its location.
Batteries should be stored in a cool, dry environment and, if possible, at the temperature shown.
The operational temperature range of
the battery is +45 C to -20 C
-20°C
Manual 156 - Issue 08
SAM e.p.s – UK
Operation and Maintenance Manual
appropriate training
+45°C

electrical supply – Battery and mains power to the
The storage temperature range of the
battery is +20 C to -20 C
+20°C
-20°C
Page 11 of 28