10
BTT25 BobTail® Hydraulic Installation Tool (HK1098)
To decrease
the Relief Valve
pressure, gradually
turn the Relief
Valve handle
counterclockwise
;
turn
clockwise
to
increase pressure.
Relief
Valve
Trigger
Switch
Load
Cell
Test
Fastener
Tool Force
Reading
s
etuP
(
continued
)
10. Set the PULL and RETURN pressures
on the Powerig using Huck Gauge P/N
T-124833CE and
TABLE 1
.
11. Using a load cell (
P
hoTo
A
) or a skidmore,
and a test fastener in the tool, energize
the Powerig using a trigger switch. Adjust
the Relief Valve (
P
hoTo
B
) so the tool
generates 12,000–13,000 lbs. force. This
is a direct force reading, not pressure. It
equals approximately 4,250 psi (
293 bar
)
Powerig pressure.
NOTE
:
It is important to release the
trigger while adjusting the pressure,
then re-energizing to re-check pressure.
Otherwise, the reading on the pressure
display may be incorrect. When the
desired pressure is achieved, reconnect
the Controller Cord.
12. Tool #2 and Tool #3: Set up the same way
as Tool 1.
13. After the system is set up, install a test
fastener. Verify that the fastener is
installed correctly. This can be checked by
inspecting the dimples on the collar flange;
at least one dimple should be marked by
the anvil. If not, add time to Timer #2 (Hold
Timer) in the Controller box, and test with
fasteners until the proper installation is
achieved. See “Set Point Adjustments” in
the
C
onTroller
section of this manual to
adjust timer.
TABLE 1 - PRESSURE SETTINGS
F
AsTener
s
ize
T
ool
P
owerig
Pull
P
ressure
s
eTTing
(
Psi
)
P
owerig
reTurn
P
ressure
s
eTTing
(
Psi
)
C
onTroller
P
ressure
s
eTTing
(
Psi
)
12 mm
BTT25
7500 psi
(517 bar
)
(minimum)
6500 psi
(448 bar
)
4200 psi
(289 bar
)
P
hoto
A
P
hoto
B
a
ssembly
of
nPtf t
hreaded
c
omPonents
AIR FITTINGS
1) Apply TEFLON
®
stick to male threads which do
not have pre-applied sealant per manufacturer’s
recommendations. (Proceed to All Fittings step 2)
HYDRAULIC FITTINGS
1) Apply Threadmate™ to male and female threads
which do not have pre-applied sealant per
manufacturer’s recommendations. (Proceed to All
Fittings step 2)
ALL FITTINGS:
2) Tighten to finger-tight condition.
3) Wrench tighten to 2-3 turns past finger-tight condition.
4) Final thread engagement can be checked (optional)
by measuring the dimension from the flange of male
fitting to the end of the thread before assembly
and subtracting the distance under the flange after
assembly.
THREAD SIZE
FINAL THREAD ENGAGEMENT AT FULL MAKE-UP
1/8-27 NPTF
.235 inch (.59 cm)
1/4-18 NPTF
.339 inch (.86 cm)
3/8-18 NPTF
.351 inch (.89 cm)
