Remove Oil Cooler and Thermostat (00001-00020)
100439-01
Use the following procedure to remove the Oil Cooler and Thermostat.
Applicable Aircraft Serial Numbers
00001-00020
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
2. Remove the two hoses at the lower side of the Oil Thermostat, using a 13/16 wrench to hold the union fitting in the Oil Thermostat and a 7/8 wrench to turn the B-nut. Remove the upper hose (going to the Oil Tank) first, followed by the lower hose (going to the Oil Pump).
3. Use a 1/4 wrench to remove the nuts and washers from the four Oil Cooler mounting studs.
4. Remove the Oil Cooler assembly from the Aircraft.
5. Remove both the aluminum oil lines connecting Oil Cooler to thermostat using a 1 inch wrench to hold the union on the cooler, a 13/16 to hold the union on the thermostat and a 7/8 wrench to turn the B-nuts. The Oil Cooler outlet line is attached to the oil cooler with a P-clamp, 10-32 screw, nut and washer; remove these as well.
6. Using a 3/8 and 1/4 wrenches, remove the two bolts, spacers, nuts and washers that attach the Thermostat to the Oil Cooler and remove the Thermostat.
7. Use a 13/16 wrench to remove the four AN816-8D fittings from the Thermostat, if needed.
8. Use a 1 inch wrench to remove the two AN815-8D unions and O-rings from the Oil Cooler.
9. Remove the screws, nuts and washers holding the Restrictor Plate and remove the plate.
10. Plug the openings in the Oil Cooler if it is to be reused.
Verification Method
The procedure is complete when the Oil Cooler and Thermostat have been removed.
Parent topic
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