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14

E-flite Piper L-4 Grasshopper ARF Assembly Manual

Aileron Servo Installation

Required Parts

Fuselage assembly  Flight battery
Radio system
Wing panel (right and left)
Hardwood servo mounting block (4)
Servo with hardware (2)
Aileron pushrod wire, 2

3

/

8

-inch (61mm)

1.5mm x 5mm sheet metal screw (8)
2mm x 4mm machine screw (2)
Micro brass pushrod connector with backplate (2)

Required Tools and Adhesives

Threadlock 

Pencil

Pin vise 

Phillips screwdriver: #00, #0

Medium CA 

Medium grit sandpaper

Hobby knife with #11 blade

Drill bit: 1/16-inch (1.5mm), 5/64-inch (2mm)



  1. Remove the aileron servo cover from one wing 

panel. Place the aileron servo on the cover so the 

servo arm is aligned with the edge of the cover and 

centered in the slot as shown. Make sure the servo 

does not hang over the edges of the servo cover.

It may be necessary to remove the servo horn 

from the servo so it can be properly positioned on 

the servo cover. Use a #00 Phillips screwdriver to 

remove and reposition the servo horn if necessary.



  2. Use a pencil to trace the outline of the edges of 

the servo and tabs onto the aileron servo cover.



  3. Use medium grit sandpaper to roughen the end 

of the servo mounting blocks that will fit against the 

aileron servo cover.



  4. Use medium CA to glue two servo mounting 

blocks to the aileron servo cover against the outside 

of the lines that were drawn. Allow the CA to fully 

cure before proceeding.

Summary of Contents for Piper L-4 Grasshopper ARF

Page 1: ...cations Wingspan 38 2 in 970mm Length 23 7 in 600mm Wing Area 210 sq in 13 5 sq dm Weight w o Battery 8 00 8 70 oz 227 247 g Weight w Battery 9 00 9 70 oz 255 275 g Piper L 4 Grasshopper ARF Assembly...

Page 2: ...l This manual is divided into sections to help make assembly easier to understand and to provide breaks between each major section In addition check boxes have been placed next to each step to keep tr...

Page 3: ...screwdriver 1 5mm Drill bit 1 16 inch 1 5mm 5 64 inch 2mm Adhesives Medium CA Threadlock Note on Lithium Polymer Batteries Lithium Polymer batteries are significantly more volatile than alkaline or Ni...

Page 4: ...he fuselage 3 The landing gear will fit snugly into the slot in the fuselage If you do not plan to remove the landing gear at any time then we suggest that you tack glue it in the slot with medium CA...

Page 5: ...e servo rails 5 Use a 0 Phillips screwdriver and the screws provided with the servos to secure them in the fuselage Receiver and Speed Control Installation Required Parts Fuselage assembly Receiver Ad...

Page 6: ...accessed later 6 Use hobby scissors to cut another piece of hook and loop tape to the size of your speed control Apply the hook and loop tape to the speed control and place the speed control in the m...

Page 7: ...dder pushrod into the tube inside the fuselage 2 Insert the bend in the pushrod wire through the outer hole of the rudder control horn 3 Slide a micro pushrod keeper over the end of the pushrod wire 4...

Page 8: ...pushrod wire for the rudder Secure the servo horn on the rudder servo so it is perpendicular to the rudder servo 11 Use a ruler to make sure the rudder and fin are in alignment with each other Always...

Page 9: ...rewall using the two 5mm plywood spacers and two 2mm x 16mm sheet metal screws A 0 Phillips screwdriver will be required to tighten the two screws Note that there are two different hole location dista...

Page 10: ...the motor is centered in the opening of the cowl and that the propeller does not rub against the cowl The cowling should be slid just far enough back that it does not cover the battery tray on the bot...

Page 11: ...screws 2 The motor shaft must be repositioned to accept the propeller adapter Follow the instructions provided with the motor to reposition the motor shaft Use care not to damage the motor Always use...

Page 12: ...o over the orange prop in a smooth curved pattern to get a simulated wood finish on the propeller Use low tack tape to keep the cowl in position while drilling the holes 10 Position the cowling so the...

Page 13: ...en Windscreen support 2 Required Tools and Adhesives Hobby scissors Medium CA Clear tape 1 Route the Y harness to the root ribs of the fuselage as shown 2 Use medium CA to glue the windscreen supports...

Page 14: ...panel Place the aileron servo on the cover so the servo arm is aligned with the edge of the cover and centered in the slot as shown Make sure the servo does not hang over the edges of the servo cover...

Page 15: ...ws provided with the servo and a 0 Phillips screwdriver to secure the servo to the servo mounting blocks 8 Use a 00 Phillips screwdriver to remove the servo horn from the aileron servo Use a pin vise...

Page 16: ...ps screwdriver to secure the cover in the wing 15 Insert the Z bend on the 23 8 inch 61mm aileron pushrod wire through the center hole of the aileron control horn The wire should be inserted through t...

Page 17: ...cket in the fuselage 3 Continue sliding the wing into position guiding the aileron servo lead in the fuselage Now is a good time to plug the aileron leads into the Y harness The wing will fit tight ag...

Page 18: ...ff of the top windscreen Use clear tape at the front and rear to hold the windscreen on Control Throws 1 Turn on the transmitter and receiver of your model Check the movement of the rudder using the t...

Page 19: ...hangs level or slightly nose down This is the correct balance point for your model You might find that you need to shift the battery slightly to either the front or back of the fuselage to achieve th...

Page 20: ...o starting your aircraft turn off your transmitter then turn it back on Do this each time you start your aircraft If any critical switches are on without your knowledge the transmitter alarm will soun...

Page 21: ...ditional protection Ship via a carrier that provides tracking and insurance for lost or damaged parcels as Horizon is not responsible for merchandise until it arrives and is accepted at our facility A...

Page 22: ...ehold waste disposal service or where you purchased the product Age Recommendation 14 years or over Not a toy Not intended for use by children without direct adult supervision 2009 Official Academy of...

Page 23: ...ront of the line In the case of airshows demonstrations straight line must be established An area away from the line must be maintained for spectators Intentional flying behind the line is prohibited...

Page 24: ...Printed 08 09 16025 2009 Horizon Hobby Inc 4105 Fieldstone Road Champaign Illinois 61822 USA 877 504 0233 horizonhobby com E fliteRC com...

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