Replacing A Fan Tray; Removing A Fan Tray - Juniper M10i Hardware Manual

M10i Internet Router Hardware Guide
Table 18: Tools and Parts Required (continued)
Tool or part
Flat-blade (–) screwdriver, 2.5 mm
Needlenose pliers
Phillips (+) screwdrivers, numbers
1 and 2
Rubber safety cap

Replacing a Fan Tray

The fan trays install into the rear of the chassis, as shown in
house eight fans and weigh approximately 4 lb (1.8 kg). To replace a fan tray, perform
the following procedures:

Removing a Fan Tray

To remove a fan tray, follow this procedure (see
CAUTION: Do not remove both fan trays for more than one minute while the router
is operating. The fans are the sole source of cooling, and the router can overheat
when they are absent.
1.
2.
88
Replacing a Fan Tray
Components
Serial cable to
port
Internal flash drive
Fan tray
CFEB
DC power cables
PIC
Power supply (AC or DC)
Routing Engine
Fiber-optic PIC or PIC cable
on page 88
Removing a Fan Tray
on page 89
Installing a Fan Tray
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to one of the ESD points on the chassis. Make sure the router
is attached to a proper earth ground. For more information about ESD, see
"Preventing Electrostatic Discharge Damage"
Loosen the thumbscrew at the top of the fan tray faceplate, using a Phillips
screwdriver if necessary.
or Routing Engine
AUX/MODEM CONSOLE
Figure 27 ):
on page 140.
Figure 2 . They each