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30

Cowl Installation

Several  spots  must  be  trimmed  out  on  the  cowl  if  using  a 
glow engine . If you’re using the electric motor, no trimming 
is necessary .

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1 . Cut four pieces of masking tape about 4" [102mm] long . 

Apply the tape to the fuselage in the locations shown (two 
per side) so that they are centered with the hardwood cowl 
mounting blocks . Using a ruler, draw a line from the center 
of the block back as far as you can . Make a vertical mark at 
the center of each cowl mounting block . Measure 1" [25mm] 
back and make a second vertical mark .

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2 .  Cut  several  pieces  of  card  stock  to  shape  to  use  as 

cowl trimming templates for the cylinder head, needle valve, 
glow plug, and muffler . Tape each piece to the fuselage aft 
of where the edge of the cowl will be . Trim holes in the card 
stock to clear any parts that will interfere with the cowl .

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3 .  Fit  the  canopy  and  hatch  assembly  to  the  fuselage . 

Remove your muffler or anything that will interfere with the 
cowl .  Fit  the  cowl .  Fit  the  backplate  of  the  spinner  to  the 
crankshaft of the engine . Slide the cowl back so that there is 
at least 1/8" [3 .2mm] of clearance between the cowl ring and 
the spinner backplate . Wrap tape around the backplate and 
the front of the cowl ring so that the cowl stays aligned with 
the  backplate . Trace  the  outline  of  the  templates  onto  the 
cowl using a felt-tip pen . 

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4 . With the cowl still in position, align the ruler with the 

lines  you  drew  and  make  marks  on  the  cowl  that  are  1" 
[25mm] forward of the vertical marks you drew . Use a 1/16" 
[1 .6mm] drill bit to drill four holes to mount the cowl . Remove 
the cowl and cut out the clearance holes . Refit the cowl and 
check your work . Re-trim if necessary .

Содержание Z-526 ZLIN krobat

Страница 1: ...ct of using the user assembled product the user accepts all resulting liability If the buyer is not prepared to accept the liability associated with the use of this product the buyer is advised to ret...

Страница 2: ...airshows in the 1960 s The Zlin along with the famous de Havilland Chipmunk paved the road to the modern CAP Extra and Edge aircraft era of today Like its full scale counterpart the Great Planes Zlin...

Страница 3: ...dust as the dust will blow back into your eyes Always wear safety goggles a particle mask and rubber gloves when grinding drilling and sanding fiberglass parts Vacuum the parts and the work area thoro...

Страница 4: ...rvo Mounting Screws Set of 10 FUTM2550 ADDITIONAL ITEMS REQUIRED To finish this airplane you will need the following items Adhesives and Building Supplies o 3 8 x 3 Heat Shrink Tubing GPMM1060 o R C f...

Страница 5: ...te is packaged in six foot rolls but some hobby shops also sell it by the foot If only a small piece of MonoKote is needed for a minor patch perhaps a fellow modeler would give you some MonoKote is ap...

Страница 6: ...rs and payments by personal check to Hobby Services 3002 N Apollo Drive Suite 1 Champaign IL 61822 Be certain to specify the order number exactly as listed in the Replacement Parts List Payment by cre...

Страница 7: ...o For Futaba standard servos this is the arm that is already installed on the servo For other radio systems please use the arm that is at least 5 8 15 9mm long from the center of the shaft to the oute...

Страница 8: ...ach servo arm still centered position your servo on an aileron servo bay cover so that the servo arm is centered in the opening and exiting the opening Please note If you are using Futaba servos there...

Страница 9: ...rs o o 13 Working with one wing now make a mark using a felt tip pen directly behind the aileron servo arm Use a builder s triangle or builder s square to ensure that you mark directly behind the serv...

Страница 10: ...horn Extend the pushrod forward and line it up with the servo arm hole Mark the pushrod at the hole o 19 Bend the pushrod 90 at the mark that you made Connect the pushrod to the outermost hole in the...

Страница 11: ...d wheel collars using a drop of thread locking compound on the set screws Apply a few drops of light machine oil to the axles when you re done o 3 Locate four flat nylon straps Place these in the cuto...

Страница 12: ...it and rotate the dowel to sand off material Sand off a little at a time and recheck the fit o 3 Locate the one 1 3 8 35mm long hardwood dowel Test fit this in the root wing rib of each wing If necess...

Страница 13: ...lon wing bolts and three 64 rubber bands not supplied Fit the wing bolts in the wing so that each bolt is centered in the hole Use two rubber bands on the wing bolts one on the top side and one on the...

Страница 14: ...the trim scheme carefully slide the stabilizer into the slot in the fuselage Slide the stab past center and re coat the top and bottom of the stab center section Proceed immediately to the next step...

Страница 15: ...o see that the LE of each elevator can touch the TE of the stab If you are having trouble fitting the hinges run your hobby knife through the slot backwards so that the dull side of the knife blade di...

Страница 16: ...rge nylon hinge into the slot in the fin o 10 With the tailwheel facing aft test fit the rudder Check to see that the tailwheel is aligned with the rudder If the tailwheel needs adjustment remove the...

Страница 17: ...o position the clevis holes directly above the hinge line Hold the horn in this position and drill two 3 8 9 5mm deep holes using a 1 16 1 6mm drill Be careful not to drill through the elevator comple...

Страница 18: ...g screws that came with your servo Remove the servo and harden the screw holes with thin CA Reinstall the servo o 9 Identify the left elevator pushrod and make a gentle bend in it at the point shown s...

Страница 19: ...m from the threaded end and cut off the unthreaded side Fit a silicone clevis retainer onto the pushrod and thread a clevis onto it so that at least 1 16 1 6mm of threads are visible past the clevis b...

Страница 20: ...in CA o 19 Set the rudder at neutral Mark the rudder pushrod at the servo arm and bend the rod straight up 90 Attach the pushrod to the servo arm using a nylon FasLink Secure the servo arm using the a...

Страница 21: ...the tank You may need to adjust the bend of the line so it reaches the top of the tank A small amount of clearance is desirable When the stopper is fully installed tighten the screw to seal the stopp...

Страница 22: ...rewall using this hardware Notice that there are centering marks molded into each half of the engine mount and that there are centering marks also on the firewall Use thread locking compound on the sc...

Страница 23: ...ot to the fill line Leave this line about 9 229mm long It will need to exit the cowl out of the cooling air hole in the bottom of the cowl Rig the Throttle o 1 Depending on the side you installed the...

Страница 24: ...ad locking compound to the throttle arm screw and install the throttle arm Slide the pushrod into the pushrod tube and attach the throttle arm to the carburetor If your throttle arm included a lock wa...

Страница 25: ...mFire 55 42 60 480 motor The motor prop ESC and battery combination listed was tested extensively and performs very well You can expect a brisk flying pace and better than average aerobatic performanc...

Страница 26: ...embly as shown Position the motor and frame so that the motor measures 4 3 4 121mm from the knurled drive washer portion of the motor to the firewall Install the eight bolts in the locations shown Be...

Страница 27: ...rate the hook side from the loop side Join the hook side to the loop side so that there is a 2 51mm overlap Make two straps like this o 2 Install the strap from the bottom of the fuselage If you want...

Страница 28: ...ack you choose o 2 Choose a place to mount your switch and charge jack that will not interfere with the servos or radio gear We chose to use the Great Planes Switch Charge Jack Mounting Set GPMM1000 A...

Страница 29: ...receiver battery to the switch harness and the harness to the receiver Use a piece of heat shrink tubing to secure the receiver battery to the switch harness If you are using a 72MHz receiver route t...

Страница 30: ...the cowl will be Trim holes in the card stock to clear any parts that will interfere with the cowl o 3 Fit the canopy and hatch assembly to the fuselage Remove your muffler or anything that will inte...

Страница 31: ...th your engine motor Install the prop nut and any lock nut included with your engine securely o 2 Test fit the spinner cone to the backplate Trim the blade openings in the cone at any points that inte...

Страница 32: ...d former and then dropping down and sliding back the canopy The two hooks under the canopy should engage in the fuselage Magnets will keep the hatch back and locked Apply the Decals 1 Use scissors or...

Страница 33: ...nes the batteries Voltages but the capacity remains the same These two 1500mAh batteries both 11 1V are being joined in PARALLEL The result will be one 11 1V 3000mAh battery This is a PARALLEL battery...

Страница 34: ...throw For this particular airplane we recommend using the high rate rudder only on the ground when taxiing Switch to low rate rudder before initiating your takeoff roll NOTE The throws are measured a...

Страница 35: ...e or eliminate any additional ballast required If additional weight is required nose weight may be easily added by using a spinner weight GPMQ4645 for the 1 oz 28g weight or GPMQ4646 for the 2 oz 57g...

Страница 36: ...If the control surfaces do not respond correctly do not fly Find and correct the problem first Look for loose servo connections or broken wires corroded wires on old servo connectors poor solder joint...

Страница 37: ...ved line s must be established in front of which all flying takes place with the other side for spectators Only personnel involved with flying the aircraft are allowed at or in the front of the flight...

Страница 38: ...idly vibrates up and down thus causing the noise In extreme cases if not detected immediately flutter can actually cause the control surface to detach or the flying surface to fail thus causing loss o...

Страница 39: ...the runway into the wind keeping the nose down to maintain airspeed and control Level the attitude when the model reaches the runway threshold modulating the throttle as necessary to maintain your gl...

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