Replacing the M40e Rear Lower Impeller Assembly
The rear lower impeller assembly is located at the lower left of the rear of the chassis, above the left power supply, as shown in M40e Chassis Description. It weighs about 4 lb (1.8 kg).
The assembly is hot-removable and hot-insertable, as described in M40e Field-Replaceable Units (FRUs).
Removing the M40e Rear Lower Impeller Assembly
To remove the rear lower impeller assembly (see Figure 1):
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect 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.
- Loosen the thumbscrew at each corner of the impeller cover, using a Phillips screwdriver if necessary.
- Grasp the thumbscrews at opposite corners of the
impeller cover and slide the 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 chassis.
Figure 1: Removing the Rear Lower Impeller Assembly
Installing the M40e Rear Lower Impeller Assembly
To install the rear lower impeller assembly (see Figure 2:
- Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect 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.
- Orient the impeller so that the label is on the top. Align the rails on the upper edges of the impeller assembly with the guides inside the chassis.
- Push the impeller assembly up and to the right to start it into the chassis, then slide it all the way in.
- Tighten the thumbscrew at each corner of the impeller cover.
Figure 2: Installing the Rear Lower Impeller Assembly
