6.13 Replace a fuse
WARNING
Ensure that you replace a fuse with a new fuse of the correct rating. If you do
not, the iH system will not be adequately protected and you can damage the
iH system or cause injury to people.
Do not remove the cover from the Electrics Box. High voltages exist in the
Electrics Box when it is connected to the electrical supply. There are no spare
parts which you can service in the Electrics Box.
Note: You can only change the fuses in fuse holders F7, F8 and F9. A BOC Edwards service engineer
must change fuses F1 to F6 in the Electrics Box (see Figure 1-5).
You can only change the low voltage fuses F7 to F9 for the d.c. electrical supply, the iH
Interface Module and the emergency stop circuit. If any of the internal fuses F1 to F6 have
failed, you must contact your supplier or BOC Edwards for advice. Only change a fuse if you
have identified and rectified the cause of the failure.
To change a fuse, refer to Figure 1-5 and use the following procedure. If the fuse immediately
fails when you replace it, there may be an electrical fault: contact your supplier or BOC
Edwards for advice.
1. Use a flat-bladed screwdriver to undo the fuse holder (13, 14 or 15) by a 1/4 of a turn, then
remove the fuse holder from the Electrics Box.
2. Remove the failed fuse from the fuse holder.
3. Fit a new fuse of the correct rating in the fuse holder. Refer to Section 2 for the fuse ratings.
4. Refit the fuse holder in the Electrics Box, then use a flat-bladed screwdriver to turn the fuse
holder clockwise by a
1
/
4
of a turn to secure it in place.
6.14 Replace the pump display terminal
Use the following procedure to replace the Pump Display Terminal . Note that you do not
need to switch off the iH system to replace the Pump Display Terminal .
1. Refer to Figure 3-6. Remove the Pump Display Terminal (8) from the recess (5) in the
dashboard.
2. Remove the connector (4) on the cable (7) from the terminal connector (6) in the recess of the
dashboard.
3. Fit the new Pump Display Terminal as described in Section 3.8.1.
6-14 iH Dry Pumping Systems
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