Features; Fields Of Application; Operation Instructions - Urrea 6234 Manual De Usuario

FEATURES

BIG TORQUE VALUES AND HIGH MOBILITY
On big or difficult-to-move bolt connections
are the ultimate solution for time and Power-
saving work.
Advantages:
- High torques (-11750 ft.lb).
- High accuracy (± 5% - ± 7,5%).
- Compact construction.
- Protecting bolt connection.
- Can be used without energy supply.
- Working safety (replaces slugging spanners).
- No maintenance necessary.

FIELDS OF APPLICATION:

Steel construction.
Machinery - equipment.
Ships building and maintenance.
Power generating.
Mining / oil exploration / off-shore.
Agricultural machinery.
Mechanical engineering.
Construction features:
- Planetary gears /1, 2 or 3 steps).
- Specially hardened gears.
- Permanent internal greasing.
- Sliding bearings on input and output squares.
- Overload protection.
- Anti-backlash device (rs).
- Casing chrome.

OPERATION INSTRUCTIONS

IMPORTANT: DON'T USE PNEUMATIC OR
POWER TOOLS WITH THE MULTIPLIER.
1. Connect an impact socket to the drive and
to the reaction square drive of the multiplier
(secure with pin and ring).
Attention: make sure that the sockets have the
same length.
2. Put torque multiplier with fixed impact sock-
et over the bolt connection to be moved and
on the neighbour bolt to apply reaction force.
3. On devices URREA 6234, 6242, 6252 and
6262 set working direction required by mov-
ing selection pawl of anti-backlash-device on L
= left hand operation (dismounting) or on R =
right hand operation (tightening).
E N G L I S H •
4. Adjust your torque wrench to the input
torque value necessary to achieve the required
output torque (chart see on page 3).
5. Now put torque wrench onto torque mul-
tiplier and tighten up to the pre-set input
torque value. Do neither hold reaction anchor
nor torque multiplier with your hands, the
forces that are created during operation may
lead to injuries.
6. On devices URREA 6234, 6242, 6252 and 6262
the planetary gear system must be discharged
when operation is finished. This is done by
shortly loading torque multiplier into working
direction and putting the selection pawl into
neutral position (0). Then carefully discharge.
CAUTION:
1. Only use torque wrenches.
2. Never use a pneumatic or electronic impact
tool.
3. Please make sure that the reaction bar is
properly placed against a strong fixed object.
4. The same procedure used for tightening
screw connections applies to loosening screw
connections.
To protect the planetary gear we also recom-
mend using only torque wrenches.
Adjust the maximum input torque of your UR-
REA-torque multiplier to the torque wrench.
Shear-off-system:
In order to protect gear system against over-
loading all URREA-torque multipliers are fitted
with a controlled shear-off system.
Sheared off pins can easily be replaced by user
at working site.
Shear off pin
U se r's m a n ua l
5