Parts Identification Information
'Item Numbers 1 thru 17 indicate the
aluminum:
tubes and tubing assemblies used as
elements
on
the TH7DX. The description lists
the outside diameter (O:D) of the tube and the
total length, of the' tube
in' inches.
The
size
of the
hardware is
determined by the
outside diameter (OD.) of the threads, e.g.
3/8", 5/16", 1/4", and #10. In the description
the thread size is followed by the threads-per-
inch
and bolt length.
Item
Numbers 18' thru 21 indicate
the
factory
pretuned traps used on the TH7DX The Part
Number and
type
of trap, is printed on each
part.
The hardware packs are divided
into
smaller'
packs,
most
containing only one size of
hardware:
To' identify the size of the element
compression
clamps,
please
refer to Figure 4, 'page
8.
To' identify' the straps, please refer to
Figures
9-,
12,, pages 14-18.
To identify the insulators, please refer to
Figures 3 and 11.
Converting American Measurements to Metric
Use
this scale to identify lengths of bolts,
diameters of tubes, etc.. The American inch
(1") and foot (1) can be converted to cen-
timeters in this way.
1 inch (1") = 2.54 cm
1 foot (1') = 30.48
Example: 42" x 2.54 = 106.7
Bolt And Nut
To determine proper bolt diameter, place
thread end of bolt over black circle. Repeat
for nut.
AO-391S-A-