5
•
Logan 85-Ton Open Loop Power Swivel
Logan 85-Ton Open Loop Power Swivel
Be sure to have an ample supply of fuel
and that the hydraulic reservoir is full.
Upon arriving at the job site, the power
unit should be placed in a level position
a safe distance from the well head and
other hazards. All corners of skid units
should be supported. On trailer units,
wheel chocks should be set in front and
in back of the wheels and the jack low-
ered to level the trailer bed.
Using a catline or derrick line, lift the
swivel unit from the rack. Suspend
the swivel over the well head from the
drilling hook or elevators. Be sure the
elevator is the correct size for the ele-
vator bail. Carefully inspect the elevator
for excessive wear (refer to API RP-8B
for guidelines).
Remove the control cable or air control
hoses and the pressure gauge hose
from their storage hangers on the skid
or trailer. Connect them to their respec-
tive connections on the power unit and
control panel.
Pre-Operation Start-up Procedures
Electric Controls
1. Move the engine throttle handle to
full “decrease” position.
2. Move the swivel control handle to
neutral position (center).
3. Start the engine:
a. Turn the engine ignition switch
to “on.”
b. Hold the engine throttle control in
“decrease” for 15 to 20 seconds.
c. Hold the engine ignition in “start.”
Release the switch when the en-
gine starts and allow it to return
to the “on” position.
4. Adjust the engine throttle to 800 to
1,000 rpm.
5. Check condition of suction filter. The
filter indicator is located on top of
the hydraulic reservoir. Replace the
filter if the suction gauge reads more
than 5" Hg.
6. Check the suction vacuum gauge
mounted near the pump. It should
not read over 5" Hg.
7. Set the torque control to the desired
maximum torque. The adjustment
knob and torque indicator gauge are
calibrated in ft-lbs. Turn the adjust-
ment knob until the desired maxi-
mum torque is indicated on the
gauge.
8. Move the swivel control handle
to the “forward” position.
9. Increase engine throttle until the
desired swivel rpm is attained and
the engine runs smoothly.
10. Check the high pressure filter.
Charge pressure should be 100
to 200 psi.
NOTE:
If the engine fails to start
promptly, reset the trip lever on the
air intake manifold located inside
the right-hand engine panel if it has
been tripped.
Air Controls
1. Move the engine throttle control
lever to neutral position (center).
2. Move the swivel control lever to
neutral position (center).
3. Press and release the start button
on the power unit engine
NOTE:
If the engine fails to start
promptly, reset the trip lever on the
air intake manifold located inside
the right-hand engine panel if it has
been tripped.
4. Adjust the engine throttle to 800
to 1,000 rpm.
5. Check condition of suction filter.
The filter indicator is located on top
of the hydraulic reservoir. Replace
the filter if the suction gauge reads
more than 5" Hg.
6. Check the suction vacuum gauge
mounted near the pump. It should
not read over 5" Hg.
Power Swivel Electric Control Panel
