HP 403349-003 - Manual (Page 123)

Upgrading procedures 123
Upgrading procedures
Viewing the upgrade procedures video
Because of the difficulty of removing and replacing spare parts, HP recommends watching the HP
Modular Cooling System Spare Replacement video. This video provides further explanation and detail of
replacement strategies and techniques that might be helpful when attempting to remove and replace spare
parts. You can access the video on the HP website ( http://www.hp.com/go/mcs ).
1. Select HP Modular Cooling System.
2. Under Related Links, select HP Support and Drivers.
3. Select HP Modular Cooling System.
4. Under Resources for HP Modular Cooling System, select Customer self repair steps
(videos/animations).
5. Select either Heat Exchanger Upgrade or Main Hose Upgrade.
Upgrading the HEX coupler
The HEX couplers are located on the HEX units.
The following tools are required for installation:
• T-25 Torx driver
• Small pipe wrench
• Adjustable wrench
• Flathead screwdriver
• Knife
Removing the HEX coupler
NOTE: For this procedure, remove the fan unit seated directly behind the heat exchanger unit
you will remove.
1. Remove the fan unit (" Removing the fan unit " on page 51 ).
2. Remove the air deflector plate (" Removing the air deflector plate " on page 33 ).
3. Remove the heat exchanger unit (" Removing the heat exchanger unit with couplers " on page 59 ).
4. Turn the HEX unit over to access the bottom of the assembly.