PS Magazine - TB 43-PS-628
PS, The Preventative Maintenance Monthly
ISSUE 628
MARCH 2005
PS 628
MAR 05
37
CH-47D…
PS 628
MAR 05
36
CH-47D…
T
aking a fuel sample on a Chinook
can be a messy job, mechanics.
But before you start grabbing
things from bench stock to use to
get a sample, here’s a simple tool
that lets you open the drain, direct
the fuel into your sample jar and
close the drain using one hand.
You’ll need to locally purchase
a sample jar, then order these
parts:
Here are the plans to make it:
1.
Thread a nut on the bolt and run it down all
the way.
2.
Cut a screwdriver tip slot on the end of the
bolt.
3.
Remove the nut to clean the bolt threads,
then run the nut down all the way again.
4.
Drill a 1/4-in hole in the center of cap,
plug and jar lid.
5.
Put the bolt through the hole in the plug,
then through the jar lid (from bottom), and
then through the cap. Put the other nut on the
bolt and run it down tight.
6.
Drill five drain holes through the cap, lid
and plug around the bolt.
Put the device on the sampling jar and
you’re done and ready to take a sample.
as a
new
mechanic,
you’ll find
there’s a
lot
to learn
about heli-
copter pm!
I’m teaching
him the ropes,
sergeant
blade.
especially
about those
rotor head
hinge pins!
good!
that’s
the
way I fit!
right
side up!!
NSN
4730–00-540-2232
Item
Plug
Cap
Bolt
Nuts (2)
Top view
Side view
Make fixture to fit drain
Cap
Jar lid
Nut
Nuts
Bolt
Plug
Drain holes
Drain holes
time for
a fuel
sample!
looks like
that sample jar
is a perfect fit
and leaves no
mess.
N
ew Chinook mechanics, in case you haven’t noticed, vertical hinge pins on
Chinook rotor heads have a top and a bottom. Putting them in upside down and tap-
ping away can ruin a good hinge pin.
It doesn’t take much to get a hinge pin stuck, crush the seals or damage the hinge.
When working on Chinook rotor heads, remember that the tool slots in the pin are
at the top and that the bottom has a slight taper. Eyeball it to make sure you put the
right end in first. Then tap ‘em in and don’t hammer away!
Tap in hinge pin with tool slot at the top
628.36-37(C)
1/27/05
6:29 PM
Page 1
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