Learning Objectives:
• Describe the steps of safely removing and inspecting the spring housing / piston assembly.

WARNING
Remove air pressure from the unit before proceeding to Step 6.

DANGER
Failure to release air pressure may result in serious personal injury.

WARNING
Do not disassemble the spring housing. Personal injury could occur.

NOTE:
If you are installing either a friction liner or fan disc kit, proceed to 8.2, step 20.

WARNING
The air chamber should be clean and moisture-free (with the exception of the seal lubricant). If not, a problem may exist in the vehicle air system and must be corrected before the fan drive is reinstalled.

NOTE:
When installing new bearings, you must press on the outer diameter ring of the bearing set to avoid damaging the bearing during installation.