20 of 27 PSS5000/INGU/805799/09
PSS 5000 – Installation Guide
3 Maintenance
3 Maintenance
Maintenance overview
This section is divided in to the following sub-topics:
• ‘3.1 Changing Fuses’ on page 20
• ‘3.2 Changing Hardware Interface Modules (HIMs)’ on page 21
3.1 Changing Fuses
To replace the fuse
This procedure describes how to remove defective Mains fuses from the
PSS 5000 Forecourt Controller and replace them with new ones.
1. Turn off the power by removing the plug from the power inlet socket.
2. Locate the fuse drawer, which is located at the power inlet socket.
3. Using 2 small flat-blade screwdrivers (max. 2.5 mm), insert the tip of
each screwdriver into the small hole next to the fuse drawer as illustrat-
ed below.
4. Press the handle of the screw drivers carefully towards the box so that
the fuse drawer is pushed outwards.
5. Remove the defective fuse from the fuse drawer.
The fuse drawer is divided into 2 sections. This provides space for a
spare fuse; so use the spare one if available.
6. Make sure that the new fuse has the correct rating and insert it in the
fuse drawer.