Marconi Instruments P4428, Техническое руководство

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Batteries
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10.4 Additional Instructions for Replacing the Battery Fuse
1) Follow instructions on changing the batteries up to and including
step 3.
2) Remove the two batteries covering the fuse slot identified by the
‘fuse’ label.
3) Using the battery cartridge wrench provided (attached to the cap
lanyard) unscrew the central contact on the bottom of the battery
pack.
4) Remove the contact and fuse support rod, be sure to retain the
black separating ring.
5) Remove the fuse through the slot in the centre of the battery.
6) Replace the fuse with a ceramic 20mm 1A fuse.
7) Replace the contact, separating ring and fuse support rod and
tighten.
8) Replace the two batteries removed at step 2.
9) Follow steps 5 and 6 as for changing batteries.