Power Line Fuse - Klein 5000 SERIES Operation And Maintenance Manual

3-4
CHAPTER 3 Preparation for Use
After checking the power source, and modifying the power cord if required,
connect the TPU to AC power.
3.3.2
The main AC power input line is protected by two 3-A, 0.25 x 1.25-inch fast acting
fuses rated for 250 volts. These fuses are located on the rear connector panel below
the power cord receptacle. Before changing the fuse, be sure that the TPU is
disconnected from its power source. To remove the fuse, open the hinged cover
with a flat bladed screwdriver and push the metal locking tabs outward. Each metal
locking tab is part of a fuse holder and can be pulled out with the tip of the screw
driver or the finger tips. Remove the fuse from the holder to check or change it.
When replacing it, the metal locking tabs must be oriented inward. When the tabs
are aligned, push in on the holder and close the hinged cover.
problem that must be corrected before attempting further operation.
3.3.3
The towfish is protected by a 6.3-A, 5 x 20-mm slow blow fuse rated for 250 volts
(P/N 13000163). It is located on the back panel of the TPU and is above the
TOWFISH connector. Before changing the fuse, be sure that the TPU is
disconnected from its power source. To remove the fuse, use a flat bladed
screwdriver to push in and then turn the fuse receptacle counterclockwise. The
fuse will pop out. Remove the fuse from the holder to check or change it. When
replacing it, there are two tabs that line up in the insert. When the tabs are aligned,
push in on it and turn it clockwise to lock it into position.
Series 5000 Sonar System Operations and Maintenance Manual
Table 3-1:
COLOR
Yellow/green
Blue
Brown

Power Line Fuse

CAUTION Do not replace a fuse with one with a higher current rating. Do
not bypass the fuse. Failure to observe this caution may cause damage to
the equipment and void the warranty. If fuses blow repeatedly, there is a
Towfish Fuse
TPU Power Cord Wiring
FUNCTION
Ground (earth)
Neutral
Hot
P/N 11210060, Rev. 16