9
2502 & A2502 Series Hydraulic Installation Tools (
HK837
)
Alcoa Fastening Systems & Rings
P
RINCIPLE
OF
O
PERATION
When the hydraulic hoses and trigger control are
connected to the POWERIG
®
Hydraulic Unit, an air or
electric trigger controls the PULL and RETURN strokes
of tool. The trigger is pressed and hydraulic pressure
is directed to the PULL side of the piston. Fastener
installation begins.
When fastener installation is completed, the trigger is
released. Hydraulic pressure is directed to the RETURN
side of the piston, moving it forward. The tool and nose
assembly are pushed off the installed fastener. At the
end of the PULL stroke, the piston uncovers fl ats of
the unloading valve, and the pressure is unloaded by
allowing the fl uid to fl ow back to the POWERIG.
WARNING: Huck recommends that a Huck
POWERIG® be used to power Huck tools.
(Only use the POWERIG as indicated in
its instruction manual.) Hydraulic power
units that deliver high PULL and RETURN
pressures—but which are NOT equipped
with RELIEF VALVES—are specifi cally NOT
RECOMMENDED and may be dangerous.
Set the PULL and RETURN pressures
as specifi ed in Specifi cations. Failure to
properly set these pressures could result in
serious personal injury.
Use Huck Pressure Gauge (P/N T-124883CE)
as indicated in its instruction manual.
Improper pressure settings may result in
severe personal injury.
WARNINGS:
- Read entire manual before using tool.
- A 30-minute training session with
qualifi ed personnel is recommended
before using Huck equipment.
- When operating Huck equipment,
always wear approved eye and hearing
protection.
- Be sure there is adequate clearance for
the operator’s hands before proceeding.
- Connect the tool’s hydraulic hoses to
the POWERIG
®
Hydraulic Unit before
connecting the tool’s switch control cord
to it. If not connected in this order, severe
personal injury may occur.
P
REPARATION
FOR
U
SE
CHECKING & ADJUSTING OUTPUT PRESSURES
NOTE
:
Before starting this procedure, review the
CAUTIONs in D
ESCRIPTION
and Figure 3.
Use a Huck POWERIG
®
Hydraulic Unit, or equivalent,
that has been suitably prepared for operation.
NOTE
:
Review all WARNINGs on this page.
1. Turn OFF the POWERIG and disconnect its power
supply. Connect the tool hoses to the POWERIG.
2. Connect tool’s control switch electrical cord to the
POWERIG.
3. Connect the POWERIG to the power supply (air
or electric). Turn ON the POWERIG. Press and
hold the tool trigger for 30 seconds; then press the
trigger a few times to cycle the tool and circulate the
hydraulic fl uid. Observe the action of the tool and
check for leaks. Turn OFF the POWERIG.
4. Disconnect the tool’s control switch electrical
cord from the POWERIG. Select the correct nose
assembly for the fastener to be installed (see
Nose Assembly Selection Chart
). Attach the nose
assembly to the tool as instructed in
Nose Assembly
Data Sheet
.
5. Re-connect the POWERIG to the power supply.
Reconnect the tool’s trigger control system to the
POWERIG. Check the operation of nose assembly;
install fasteners in a test plate of correct thickness
with proper size holes. Inspect installed fasteners.
If fasteners do not pass inspection, see
T
ROUBLESHOOTING
to investigate possible causes.
Threadmate is a registered trademark of Parker Intangibles LLC.
Loctite is a registered trademark of Henkel Corporation, U.S.A.
Slic-Tite is a registered trademark of LA-CO Industries, Inc.
CH
ECKING & ADJUSTING OUTPUT PRESSURES
CAUTION: Keep disconnected hoses,
couplers and hydraulic fl uid free of foreign
matter. Contaminated fl uid can cause valve
failures.
1
Turn OFF the POWERIG and disconnect its power
WARNING: Connect the tool’s hydraulic
hoses to the POWERIG before connecting
tool’s trigger control system to the
POWERIG. If not connected in this order,
severe personal injury may occur.
POWERIG.
CAUTION: Apply Parker Threadmate
®
,
Loctite
®
567, or Slic-Tite
®
to male pipe
threads (per manufacturer’s instructions) to
prevent leaks and to ease assembly.
