Seaward 300 PrimeTest - Manual (Page 88)

PrimeTest 300 Operating Instructions
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and replaced where necessary.
There are 3 fuses, one in the mains plug and 2 internal
fuses. The mains plug fuse is replaced in the same way
any plug top fuse is replaced. The internal fuses should
be replaced as follows:
Warning: Always ensure that the PrimeTest
300 is disconnected from all voltage sources
before maintenance work is carried out.
Attention: Replacement fuses must be in
accordance with the specified type, rating and
size as stated on the battery compartment
cover on the rear of the PrimeTest 300.
Power the unit off using the red OFF button, ref fig. 1
(3).
Disconnect the black test lead from the unit.
Disconnect the Seaward mains cable, from the mains
inlet socket, ref fig. 2 (7).
Disconnect the IEC mains cable, from the IEC socket ref
fig 2 (8).
Disconnect the EUT mains cable, from the EUT socket,
ref fig. 1 (6).
Position the PrimeTest 300 face down and release the
captive screw in the battery compartment cover.
Remove the battery compartment cover.
Lift one end of the fuse out of the fuse holder with the
help of a flat bladed screwdriver.
Lift the defective fuse completely out of the fuse holder.
Insert a new fuse as described and specified by the text
on the battery compartment cover.
Ensure that the new fuse is seated and centred in the