Service manual

9 203
Parts Replacement
Replacement Procedure
9. Parts Replacement
Replacement Procedure
This Chapter describes how to replace the 4294A major assemblies.The cover and panel
removal procedures that are required for some assembly replacements are described first.
Then the replacement procedures for each major assembly are described.
Top Cover Removal
Tools Required
• Torx screwdriver, T15
• Pozidriv Screwdriver, pt size #2 (medium)
Procedure
1. Disconnect the power cable from the 4294A.
2. Remove the two rear feet behind the top cover.
3. Loosen the top cover rear screw.
4. Slide the top cover toward the rear and lift it off.
Bottom Cover Removal
Tools Required
• Torx screwdriver, T15
• Pozidriv Screwdriver, pt size #2 (medium)
Procedure
1. Disconnect the power cable from the 4294A.
2. Place the analyzer upside down.
3. Remove the two rear feet behind the bottom cover.
4. Loosen the bottom cover rear screw.
5. Slide the bottom cover toward the rear and lift it off.
Side Cover Removal
Tools Required
• Torx screwdriver, T15
• Pozidriv Screwdriver, pt size #2 (medium)
Procedure
1. Remove the top cover and the bottom cover as described in the “Top Cover Removal”
and “Bottom Cover Removal” procedures.