Forced
Aeromotive
Technologies
FAA-STC SA10232SC
Supercharged O-470-L, -R, -S, and -U Engines in
Cessna Models 182B, C, D, E, F, G, H, J, K, L, M, N, Q, and R Aircraft
Instructions For Continued Airworthiness
DOCUMENT NO. 22001-05
REV G, August 21, 2020
PAGE 6 OF 11
5. MAINTENANCE INSTRUCTIONS
Refer to basic Cessna 182 Series Maintenance Manual for information other than
what is provided below.
5.1 REPLACEMENT OF SUPERCHARGER BELT
1. Loosen the two bolts securing the idler pulley and remove the belt.
2. After placing the new belt on the pulleys, adjust the tension by pressing the
idler pulley down against the belt and tightening the adjustment bolts. Tighten
a new belt until a 12-14 pound pull on the center of the lower portion of the
belt results in a .25 inch of belt deflection.
3. After 2 flight hours re-check belt tension. Tighten the belt until a 10-11 pound.
pull on the center of the lower portion of the belt results in a .25 inch of belt
deflection.
4. For aircraft equipped with a multi-v belt, after 2 hours, re-tension the belt until
a 10-11 pound pull on the center of the lower portion of the belt results in .25
inch of belt deflection. Check again after 10 hours.
5.2 REPLACEMENT OF ALTENATOR BELT
1. Loosen the two bolts securing the idler pulley and remove the belt from the
supercharger.
2. Remove the SCAT connected to the supercharger airbox and remove the
airbox from the supercharger by loosening the clamp and sliding the airbox
forward. The carburetor heat control can remain connected.
3. Disconnect the oil line to the supercharger at its connection to the
supercharger. Loosen the upper clamp on the supercharger oil drain hose
located at the rear of the supercharger and behind the alternator.
4. Remove the two nuts and bolts at the upper rear of the supercharger mount
that connect the mount to the L-shaped bracket which is bolted to the left
accessory pad.
5. Loosen the one bolt and remove the two metal stop nuts that hold the
supercharger to the crankcase.
6. Remove the supercharger by sliding it out from the engine and up, pulling the
oil drain from the oil drain hose (the clamp loosened in step 3).
7. Replace the alternator belt with appropriate belts and using procedures
outlined in the basic Cessna Maintenance or Service Manual.
8. Replacement of the supercharger is the reverse of the removal procedure.
