940 series Powerig®
(HK496)
Alcoa Fastening Systems & Rings
7
CHECKING PRESSURES
Check PULL and RETURN pressures before use,
before troubleshooting, and after overhauling.
See pressures given in the specific tool
instruction manual. For
checking
pressures, use
T-124833CE PRESSURE GAUGE
and
PRESSURE
GAUGE INSTRUCTION MANUAL .
ADJUSTING PRESSURES
NOTE: Use “T” gauge T-124833CE to check pres-
sures during adjustment. Set pressures according to
the specific installation equipment manual.
ADJUSTING PULL PRESSURE
NOTE: PULL pressure is the maximum POWERIG
®
pressure. Do not exceed the pressure rating of the
installation equipment. See the installation equipment
manual for pressure rating.
1) Loosen the jam nut of the high pressure
relief valve.
2) Turn the adjusting screw clockwise to increase
PULL pressure
OR
counterclockwise to decrease
PULL pressure.
3) Tighten the jam nut after PULL pressure has
been adjusted.
4) Check PULL pressure. Follow instructions in the
appropriate section of this manual.
ADJUSTING RETURN PRESSURE
1) Loosen the jam nut on pressure switch.
2) Turn the adjusting screw clockwise to increase
RETURN pressure
OR
counterclockwise to
decrease RETURN pressure.
3) Tighten the jam nut on pressure switch after
return pressure has been adjusted.
4) Check RETURN pressure. Follow instructions in
the appropriate section of this manual.
C
heCkIng
anD
a
DjustIng
p
ressures
WARNING:
Maximum PULL pressure is
8400 psi.
Refer to specific tool instruction
manual for PULL and RETURN pressures .
Severe personal injury may occur if
excessive pressures cause violent failure
of equipment . Higher than normal pres-
sures will also cause premature wear of
equipment .
WARNING: If recommended maximum
pressure is exceeded, violent failure of
fastening system may occur . This may
cause severe personal injury .
o
peratIon
Before each use:
1) Check the fluid level in the reservoir and add
hydraulic fluid as required.
2) Inspect hoses for damage and wear. If hoses
show wear that has removed more than the sur-
face texture, they must be replaced.
3) Check the entire system and repair any leaks.
4) Check electrical cord and extension for abrasion
and replace as required.
Be sure that:
1) Hose from PULL PRESSURE on the control panel
runs to the port stamped with a letter P on the
tool.
2) Hose from RETURN PRESSURE on the control
panel runs to the port stamped with letter R on the
tool.
Plug the control cable from the tool into the two-prong
socket on the POWERIG Hydraulic Unit control panel.
Depress the tool trigger switch and let the POWERIG
Hydraulic Unit operate for a few minutes to circulate
fluid and remove air from the system.
Attach a nose assembly to the installation equipment.
Fasteners may now be installed. Follow instructions in
the tool manual.
Operating Tools
Plug the power cord into a grounded wall outlet.
Check pressures and adjust as necessary. See the
appropriate sections in this manual.
WARNINGS must
be understood before checking pressures.
Connect hydraulic hoses from a HUCK hydraulic tool
to the Powerig Hydraulic Unit.
