4
SM-155B
3. To increase the torque setting, turn the torque ring clockwise. When
the torque ring is twisted, a click will be heard and felt. (6) clicks indi-
cate a full revolution, and there are about (10) revolutions between the
maximum and minimum torque settings. When determining the setting
to use for rolling, start at a lower setting and increase in increments
until the proper expansion is achieved.
NOTE
: When lowering the torque setting, there is nothing to prevent the
torque adjustment ring from being completely unthreaded (it will only be
held on by the quick connector). When this happens the ring will no longer
click when twisted, and if operated the tool will reverse immediately, even
with no load. To rethread the ring, simply turn it clockwise until the click
is felt again.
Torque Adjustment Tool
5
SM-155B
OPERATION CONT’D
Tube Rolling
The 952-1800 is a trigger operated, torque controlled rolling tool. It is
designed for use with regulated, filtered, and lubricated 90 psig air
(measured at the tool inlet), but can be used at lower pressures to
lower the minimum torque setting if required (with some loss of free
speed).
The operator inserts the expander and pulls the trigger to start the
tool. (To avoid “staking” in soft tubes, do not engage the expander
mandrel before it starts to rotate.) Applying light thrust to feed in the
mandrel, the tool reaches desired torque setting, indicating that the
desired amount of expansion has been achieved. The tool will then
stop and automatically reverse direction so that the operator can gen-
tly pull back and release the mandrel. Once the mandrel is free, re-
lease the trigger and remove the expander . Proceed to the next tube.
The tool will automatically return to forward operation when the trig-
ger is released.
Below is approximate torque value:
Lubrication
1. Lubrication is indispensable to air tools. The best way to provide it
is to install a filter-lubricator into the air line for automatic oil feed,
but if one is not available, manual lubrication once after every half
day of use (4 hours) is recommended for longer life and proper
function of all features.
2. For manual lubrication, disconnect air hose from air inlet and pour
oil (#40-#60) into the air intake.
3. After lubrication, oil will discharge from the exhaust upon opera-
tion. Flush motor for a few seconds if necessary.
Setting
Torque in-lb
2
18-20
3
21-23
4
27-29
5
31-34
6
35-38
7
38-40
8
43-45
