ICON A5 MM : Propulsion : Engine : Oil System : Maintenance Instructions : Remove Oil Cooler and Thermostat (00021+)
Remove Oil Cooler and Thermostat (00021+)
100521-01
Use the following procedure to remove the Oil Cooler and Thermostat.
Applicable Aircraft Serial Numbers
00021+
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
None
Parts Required
None
Aircraft System and Number
13—Propulsion
Safety Equipment
As Needed
Consumables
None
Task Instructions
1. Remove the top Engine Cowling. (Remove Engine Cowlings)
2. Have a rag ready to catch any oil.
3. Use a 13/16 wrench to hold the Adapter Fitting and a 7/8 wrench to turn the AN-8 B-nut to remove the Tank-Thermostat Hose. (Figure 411)
Figure 411. Oil Cooler and Thermostat Installed on Air Plenum Box
4. Use a 13/16 wrench to hold the Adapter Fitting and a 7/8 wrench to turn the AN-8 B-nut to remove the Thermostat-Engine Hose.
5. Use a 1/4 wrench to remove the #10-32 nuts and washers from the 4X Oil Cooler mounting studs.
6. Remove the Oil Cooler assembly from the Aircraft. Take note of any washers use to shim gap between Oil Cooler tabs and studs.
7. Use a 13/16 wrench to hold the Adapter Fitting and a 7/8 wrench to turn the AN-8 B-nut to remove the aluminum Thermostat-Oil Cooler Line from the Thermostat. (Figure 412)
Figure 412. Oil Cooler and Thermostat Assembly
8. Use a 1-inch wrench to hold the Union Fitting and a 7/8 wrench to turn the AN-8 B-nut to remove the aluminum Thermostat-Oil Cooler Line from the Oil Cooler.
9. Remove the #8-32 nut, washer, and P-clamp securing the Oil Cooler-Thermostat Line to the Oil Cooler.
10. Use a 3/8 and a 1/4 wrench to remove the two #10-32 bolts, spacers, nuts, and six washers that attach the Thermostat to the Oil Cooler. Remove the Thermostat. ()
11. If needed, use a 13/16 wrench to remove the 4X Adapter Fittings from the Thermostat.
12. Use a 1-inch wrench to remove the two Union Fittings and O-rings from the Oil Cooler.
13. Plug the openings in the Oil Cooler if it is to be reused.
Verification Method
This procedure is complete when the Oil Cooler and Thermostat have been removed. Install Oil Cooler and Thermostat. (Install Oil Cooler and Thermostat (00021+))