Removing The M40E Rear Upper Impeller Assembly; Installing The M40E Rear Upper Impeller Assembly; Figure 93: Removing The Rear Upper Impeller Assembly - Juniper M40E Hardware Manual

M40e Multiservice Edge Router Hardware Guide
178
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Removing the M40e Rear Upper Impeller Assembly

To remove the rear upper impeller assembly (see Figure 93 on page 178):
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.
Loosen the thumbscrew at each corner of the impeller cover, using a Phillips
2.
screwdriver if necessary.
Grasp the thumbscrews at opposite corners of the impeller cover and slide the
3.
assembly halfway out of the chassis.
CAUTION: To avoid injury, as you slide the assembly out of the chassis do
not touch any part of the impeller behind the front panel—the impeller
might still be spinning.
When the impeller is no longer spinning, slide the assembly completely out of the
4.
chassis.

Figure 93: Removing the Rear Upper Impeller Assembly

Installing the M40e Rear Upper Impeller Assembly

To install the rear upper impeller assembly (see Figure 94 on page 179):
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.
Slide the assembly all the way into the chassis.
2.
Tighten the thumbscrew at each corner of the impeller cover.
3.
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