2-19
Figure 2-15.—Clip clamps.
Safety Precautions When Replacing Fuses
The following safety precautions will prevent injury to personnel and damage to equipment. These
are the MINIMUM safety precautions for replacing fuses.
Be sure the power is off in the circuit and the circuit is discharged before replacing a fuse.
Use an identical replacement fuse if possible.
Remove any corrosion from the fuseholder before replacing the fuse.
Be certain the fuse properly fits the fuseholder.
PREVENTIVE MAINTENANCE OF FUSES
Preventive maintenance of fuses consists of checking for the following conditions and correcting any
discrepancies.
1. IMPROPER FUSE. Check the fuse installed against that recommended in the technical manual
for the equipment. If an incorrect fuse is installed, replace it with the correct fuse.
2.
CORROSION. Check for corrosion on the fuseholder terminals or the fuse itself. If corrosion is
present, remove it with fine sandpaper.
3. IMPROPER FIT. Check for contact between the fuse and fuseholder. If a piece of paper will fit
between the fuse and the clips on a clip-type fuseholder, there is improper contact. If the fuse is
not held in the cap of a plug-type fuseholder, the contacts are too loose.
4. OPEN FUSES. Check fuses for opens. If any fuse is open, repair the trouble that caused the open
fuse and replace the fuse.
