Logan 85-Ton Open Loop Power Swivel
The electric control panel consists of
a joy stick for controlling swivel direc-
tion and speed, an engine rpm control
switch, a torque gauge, and a master
kill switch. An emergency kill switch is
available for hazardous locations.
Torque limits can be easily and accu-
rately set on both air and electric control
units. A torque control unit mounted
on the fuel tank can be preset to the
desired torque limit with the turn of
a knob. Torque will be indicated on the
control panel dial in ft-lbs.
Basic Power System
The Logan 85-Ton Open Loop Power
Swivel is equipped with a diesel engine
to pro-vide power. The engine is sized
to provide sufficient horsepower to
operate the swivel to full torque and rpm
limits. Control systems may be either air
or electric.
On units equipped with air control sys-
tems, an air compressor rated at 7.4
cfm, a three-gallon receiver tank, and
an air filter-lubricator are also provided.
A torque gauge, calibrated in ft-lbs, is
located on the remote control panel.
Hydraulic System
The hydraulic system includes a direct
driven, variable displacement hydraulic
pump that is mounted directly on the
engine flywheel housing. All piping,
valves, fittings, reservoirs, and other
components required to complete the
system are included. The hydraulic
system is designed and rated at 5,000
psi working pressure.
The hydraulic reservoir is designed to
dissipate heat and is adequately sized
to disperse foam that may be generated
during operation. A 10-micron suction
filter and high pressure loop filters pro-
vide continuous filtration of the hydraulic
fluid. Visual registers on the suction
filter and high pressure loop filters indi-
cate when these elements need to be
replaced.
All hydraulic hoses are reel-mounted
on the power unit. They are connected
to the power swivel hydraulic motor with
swivel joints and quick disconnects.
A swivel carrying rack allows the swivel
to be loaded and unloaded without
breaking the hose connections.
Power Unit
The compact, easily transportable
Power Swivel units may be mounted on
a trailer or skid. All units consist of an
engine with a hydraulic pump, hydrau-
lic piping, a hydraulic fluid reservoir, a
hose reel assembly and hoses neces-
sary for supplying hydraulic power to
the power swivel motor. Brackets to
hold and transport the swivel and the
control panel are included.
Trailer-Mounted Unit
The compact, four-wheel trailer units
meet all ICC regulations and are
equipped with heavy-duty springs and
electric brakes. The trailer is equipped
with a gooseneck or bumper pull.
Tongue weight is designed to ensure
on-road stability and eliminate fishtail
-
ing. Diamond-patterned deck plate
provides solid, skid resistant flooring
over the all welded, steel frame.
Skid-Mounted Unit
Skid units are rugged and made of
heavy-duty structural tubing with weld-
ed construction. Both ends are rounded
for easy skidding. Ends are fitted with
an integral pipe that may be used to
attach boom lines or hoist slings. These
pipes are flush with the sides of the
skid. Main runners, running the length
of the skid, are strengthened by cross-
members for additional rigidity. The
entire frame is covered with diamond-
patterned deck plate to provide a solid,
skid resistant floor.
To meet environmental regulations,
both trailer- and skid-mounted units are
equipped with skirts to eliminate fluid
spills.
INSTALLATION
Rig Up
Check all components to ensure that
all accessory items (especially the port-
able control panel) and spare parts
are packed, and that all equipment is
in serviceable condition. If time per-
mits, the operator should run the power
swivel for a short time to check control
indicators, filter, and response of con-
trols, etc. before leaving for the job site.
Gooseneck Trailer-Mounted Unit, Side View
Logan 85-Ton Open Loop Power Swivel
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