Replacing A Fuse On An M40E Router; Figure 124: Installing The Circuit Breaker Box; Dc Power Disconnection Warning For M Series, Mx Series, And T Series Routers; M40E Dc Power Electrical Safety Guidelines - Juniper M40E Hardware Manual

M40e Multiservice Edge Router Hardware Guide
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Replacing a Fuse on an M40e Router

222
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Figure 124: Installing the Circuit Breaker Box

M40e Field-Replaceable Units (FRUs) on page 157
Tools and Parts Required to Remove Components from an M40e Router on page 309
DC Power Disconnection Warning for M Series, MX Series, and T Series Routers on
page 259
M40e DC Power Electrical Safety Guidelines on page 257
M40e DC Power Distribution on page 280
To replace a fuse (see Figure 125 on page 223):
WARNING: You must power off the router before removing or installing a
fuse.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series
Router" on page 232.
Remove the rear lower impeller assembly by loosening the thumbscrew at each corner
2.
of the impeller cover and sliding the impeller assembly out of the chassis. For complete
instructions, see "Removing the M40e Rear Lower Impeller Assembly" on page 176.
Determine which fuse has blown. The yellow LED next to the fuse lights and the
3.
indicator bulb becomes visible through the clear cover on the fuse.
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