PS Magazine - TB 43-PS-559
PS, The Preventative Maintenance Monthly
ISSUE 559
JUNE 1999
(3)
3
/
8
"–24 bolts
PS 559
39
Dear Editor,
There are dozens of dzus fasteners on aircraft radio
and breaker consoles and installing them can be a royal
pain. It takes two people about 10 minutes to install
each fastener and requires a punch and block set.
To install a fastener with a punch and block requires a
hammer. One erratic swing in a cockpit and you’ve got
major damage.
I made a tool that installs the fasteners without a
punch and block set. With the tool, one man can install
a fastener and eliminate the risk of hammer damage.
The tool is machined from steel bar stock and uses
three
3
/
8
-in bolts. It takes a few hours to make, but the
benefits in time saved and equipment protected are
well worth it.
Robert L. Espeland
AASF
Aurora, CO
All Aircraft . . .
Thanks, Bob. Mechanics, this tool looks like
a real winner.
One note: The drawing shows the bottom
leg of the tool with a section cut away. This is
done so that the tool can be used on all
aircraft and in all situations. A tool without
this cut in some situations has clearance
problems. The depth of the cut is up to you
based on the aircraft you’re working on and
how much clearance is needed.
Check out the following pages to see just
how the tool is used.
PS 559
38
JUN 99
Drilled & tapped holes:
3
/
8
"–24
SIDE VIEW
3
/
16
"
r
5
/
8
"
1
/
2
"
1x3"
bar
stock
Tool dimensions
Bolt A
Bolt B
7
/
16
"
.130 r
Bolt C
uh-oh!
look what
happened to the
console
.
yeouch!
my
hand
!
TOP VIEW
1"
3
1
/
2
"
1"
3"
3"
7
/
8
"
3
/
8
"
1
/
8
"
.340"
.340"
5
/
8
"
8–32 screw
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