Global Hobby AK-18, Instructions Manual

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mounting brackets and attach the Z-Bend into the hole
furthest out in the steering arm. Reattach the nose
gear and steering arm assembly as done previously.
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17) Using a pair of pliers, carefully bend the
steering pushrod wire, if necessary, until it is aligned
with the steering arm and does not bind when the nose
gear is rotated. See photo # 14 below.
Photo # 14
INSTALLING THE NOSE GEAR WHEEL
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18) Slide one nylon spacer, then the wheel, and
one wheel collar with set screw onto the axle. Make
sure the wheel spins free and tighten the set screw in
the wheel collar. See photo # 15 below.
Photo # 15
PARTS REQUIRED
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{2} Nylon Motor Mount Beams
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{4} 4mm x 20mm Machine Screws
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{4} 4mm x 35mm Machine Screws
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{8} 4mm Flat Washers
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{4} 4mm Split Washers
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{4} 4mm Hex Nuts
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{1} 1.5mm x 250mm Pushrod Wire w/Z-bend
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{1} 3mm x 250mm Nylon Pushrod Housing
ENGINE INSTALLATION
MOUNTING THE ENGINE TO THE BEAMS
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1) Use a clamp and a spacer to hold the two
mounting beams together. The beams should be level
with each other and parallel. The predrilled mount-
ing holes are not the same distance from the beam
surface. The engine should be mounted on the "tall"
side of the beams. See photo # 16 below.
Photo # 16
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2) Mark the locations of the four engine mount-
ing holes on the beams using a pencil. For the engine
to align properly with the front of the cowling, it is
important that the front edge of the engine's drive
washer be 4-5/8” in front of the back surface of the
mounting beams.
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3) When satisfied with the alignment of the en-
gine, remove the beams from the clamp and drill 3/32”
pilot holes through the mounting beams at the four
engine mounting hole locations. Double check the
alignment of the engine and then drill out the holes
through the beams using a 5/32” drill bit.
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4) Mount the engine to the mounting beams us-
ing four 4mm x 35mm machine screws, four 4mm
flat washers, four 4mm split washers and four 4mm
hex nuts. The flat washers and split washers are in-
stalled on the bottom of the beams only. Tighten the
screws and nuts completely. See photo # 17 below.
Photo # 17
If you are using an engine equipped with a re-
mote needle valve we recommend mounting the
needle valve to the engine after installing the motor
mount/engine assembly to the firewall.
MOUNTING THE ENGINE TO THE FIREWALL
The mounting holes in the firewall have already
been predrilled and the blind nuts installed for a
Magnum .40 - .46 engine. If you are using an engine
that has a different crankcase dimension, you will need
to remove the blind nuts and reinstall them in the
proper position for your particular application.
Pushrod Wire
Nose Gear
Wire
Nylon
Spacer
Wheel
Collar
Set
Screw
Spacer
Motor
Mount
Beams
Clamp
Machine
Screws