D20x22 Series II Navigator HDD
Supplemental Operations 60-5
B
REAKOUT
D
EVICE
O
PERATION
Step 1:
Position tongs
(1)
on drill rod,
one on each side of joint, in
makeup or breakout position.
Refer to “Configurations,”
Tongs should always be
pushed together, not pulled
apart.
Tongs should be no wider than
the length of the threaded T-
bar
(2)
.
Pins
(3)
, when assembled to
the thread bar, must fit into
the eyes of the handles. If the handles are spread too far, the pins will not line up and install. The pins
should always start at the widest position on the threaded rod for maximum stroke.
Step 2:
Hand-tighten adjustment clamp jaw nuts
(4)
. Use a 1-5/16˝ wrench to snug nuts, but do not tighten.
Lengths of threaded portion beyond nuts
(5)
should be approximately equal.
Step 3:
Install threaded T-bar
(2)
and pins
(3)
. You may need to adjust tongs.
Step 4:
Turn T-bar to pull tong arms together slightly.
WARNING:
Improper use can cause device to fail.
Read Operator’s Manual. Use device properly.
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