Airparamo GRAZhopper Owner's Manual - page 6
GRAZhopper Owners Manual
Version 1.3, Updated on June 2010
©2007, Airparamo LLC
www.airparamo.com
Page 6 of 10
the angle to the wheel axels. If the wheels are towed in or out, simply move them into
the right position. When the alignment is complete, retighten the clamps on the wheel
axels.
ATTENTION:
Do not overtighten these wheel axel clamps. Use a wrench or pliers to
gently tighten the thumb clamps.
ATTENTION:
Wheel alignment is critical to maximize the ease of launch and longevity
of the tires and bearings. Wheels that are not properly aligned create a huge drag
resistance on the ground, which makes for longer and slower takeoffs. Also unaligned
wheels put enormous lateral forces on the wheel bearings, which causes them to fail
prematurely and quickly.
3.9 Attach the harness(es). The GRAZhopper trike accepts a multitude of different
harnesses. Use straps to pull the harness forward for better comfort and to adjust the
flight nose wheel angle. See photos in this manual for details.
3.10 Attach the wing hang point position. Use the rear hole for single and the front
hole for tandem positions.
WARNING:
Be sure to have the correct hang point arrangement for single or tandem
configurations. Flying in the incorrect hang point position would cause the trike to be
unbalanced (with the front wheel too high or too low) in the air and could be
extremely dangerous or even lethal to fly and land.
3.11 Attach the front foot bar as desired. There are 8 user selectable positions
depending on your comfort or leg length.
3.12 Fully tighten the cable turnbuckles.
ATTENTION:
On turnbuckle tightening, special care
must be taken when tightening or loosening the
turnbuckles. DO NOT use any tools to loosen or tighten
the turnbuckles (or nuts on the turnbuckles) or the
threads will quickly gall and jam. Several users have
found success with a stainless steel anti-galling lubricant
on the threads of the turnbuckle, but this can become a
messy ordeal with the lubricant sticking to anything it
touches and attracting unnecessary dirt into the turnbuckle.
ATTENTION:
We also recommend our tested, proven approach to loosening and
tightening the turnbuckles, which will insure you years of trouble free operation:
3.12.1
Pull the frame in such a way to release any cable tension on the turnbuckle
you desire to tighten or loosen. It is helpful to use your foot to push on the lower
main frame and one hand to pull the vertical main frame support towards you. This
releases all cable tension on the turnbuckle you want to tighten.
3.12.2
With your other hand, use your pinkee to keep the lower cable from turning.
Then use your thumb and other fingers to tighten or loosen the turn buckle.
3.12.3
Use the supplied bungie loop to go through the key ring on the turnbuckle
and up to the bolts on the roll bar. See photos in this
manual for details. This provides a secure system to
insure that the turnbuckle will not turn loose in flight.
3.13 Position rear cable into stay under the rear portion
the of main frame. It is ok if this rear cable is a little
loose. See photos in this manual for details.
3.14 Attach your motor unit. Use the Universal Motor
Clamping System on the GRAZhopper to connect the
bottom and upper frame tubes. Also, use the supplied
doublesided Velcro to attach the motor unit to the
GRAZhopper wheel axels and as a safety backup for the top motor clamp.
ATTENTION:
With some motor units, the Universal Motor Clamping System may need
to be modified to fit properly. Be sure that your Universal Motor Clamping System is
securely holding the fame of your particular motor. If you have any doubts, do not
hesitate to contact your product dealer or Airparamo LLC directly.