Hangar 9 35% Extra 300 ARF (3 Boxes) - Manual (Page 19)

19 35% Extra 300 ARF Assembly Manual
 13. Pull the cuffs up and clean the marking and excess
Shoo Goo with alcohol swabs.
Engine and Throttle Servo Installation
Required Parts
Fuselage Wood plate
Required Parts (not included)
DA-120 Engine DA stock mufflers
JR-537 servo (1)
JR 24-inch servo extension
Required Tools and Adhesives
Threadlock 4.5mm hex wrench
Hobby knife with #11 blade Felt-tipped pen
Pin vise
#1 Phillips screwdriver
Rotary tool with sanding drum
30-minute epoxy
Acid brush
Mixing cup
 1. Mount the engine using ¼-20 bolts and wood spacers
provided and make sure to apply threadlock to all the bolts.
Opening of wood spacers should face the engine box cutout.
The picture below shows the wood spacers and bolts.
The following pictures show engine installation.
 2. Prepare the throttle servo by inserting the rubber
grommets and brass eyelets.
 3. Attach a 24-inch extension. Secure the leads with
dental floss and apply a piece of masking tape over the
connectors.