Instron DX Series System Concepts Manual

Chapter 4: Parts Replacement
52 M47-17028-EN
Replacement of fuses
The system is equipped with fuses as outlined in Table 6.
These fuses should only need replaced when they are blown. Problems that indicate a blown fuse are
described in Table 5 on page 44; refer to Problem No. 1. If you believe a fuse could be blown, perform
the following check to pinpoint which fuse is blown:
1. Start up the system according to the system startup procedure provided in the System Operating
Instructions (supplied separately).
2. Check the indicators on the SERVICE display of the 59 Series control unit (see page 37), they
should be lit. If the indicators are not lit, then the power supply fuse could be blown. Visually inspect
the fuse. Follow the procedure outlined under “Inspect/replace power supply fuse” on page 52
to access and locate the fuse. If the fuse is blown, replace it. Information for the fuse can be found
in Table 6.
Inspect/replace power supply fuse
The power supply fuse is located in the electrical panel in the base of the frame. To access the fuse it is
necessary to remove several covers from the base of the frame; perform the following procedure.
Equipment required
• A 4 mm hex key (supplied)
Recommended Procedure
1. Be sure the system is shut down. All power should be off.
2. Remove the front cover from the base of the frame, refer refer to maintenance information provided
in the System Operating Instructions (supplied separately).
3. Use a 4 mm hex key to remove the six M5 button head cap screws (1, Figure 20) from the inside
cover (2).
4. Remove the inside cover from the electrical panel.
5. Figure 20 indicates the location of the power supply fuses (3).
6. Inspect or change the fuse as necessary. Fuse specifications are listed in Table 6. Be sure to use
the proper fuse size for your system’s main power supply voltage.
Table 6. Fuse information.
Fuse Description Specifications
Instron
Part Number Quantity
Fuses 1FU and 2FU
For 115 VAC main power supply
7 amp,
1/4D x 1-1/4LG, 250Vac
(equivalent metric size is
6.3D x 32LG)
300-8905-9181 2
Fuses 1FU and 2FU
For 230 VAC or 220 VAC main power supply
4 amp,
1/4D x 1-1/4LG, 250Vac
(equivalent metric size is
6.3D x 32LG)
300-8905-9161 2

Instron DX Series Specifications

General

Brand	Instron
Model	DX Series
Category	Test Equipment
Language	English