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http://www.ultralightnews.ca/ Page 20 of 30
The Ultralight News - your one stop Ultralight News.
6.Maintenance
6.1.General
This chapter contains the necessary directions to allow technically qualified persons to carry out the smaller
repairs and inspections such as:
Periodic inspections of the engine
Maintenance of engine parts
Troubleshooting
6.2.Tools, special tools and torques
The specifications and sizes of tools are given according to the metric system and can be procured
commercially in specialty shops.
Tools:
Description Size Description Size
Adjustable wrench 7 Adjustable wrench 8
Adjustable wrench 10 Adjustable wrench 13
Hexagon socket screw key 3 Hexagon socket screw key 4
Hexagon socket screw key 5 Hexagon socket screw key 6
Sparkplug wrench Sparkplug wrench 20.6/20.8
Torque wrench 0 -100 Nm Screwdriver
Special Tools:
The special tools are available for purchase under the indicated G.-H. numbers from AATI Pty Ltd or a Hirth
distributor.
Description GH-Number
Magnetic wheel - extractor W 138
(Piston ring clip (Piston ?aid in assembly) W 108/15
Torque settings
Description Initial Torque Description Initial Torque
M4 x 2.8 ? 3.3 Nm M5 x- 4 ?4.4 Nm
M6 x 9 -11 Nm M8 x 23-28Nm
M16 x 70-80 Nm Sparkplug 16 Nm
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