15
2502 & A2502 Series Hydraulic Installation Tools (
HK837
)
Alcoa Fastening Systems & Rings
This section details the re-assembly of the tool. For
component identifi cation, see the Assembly Drawings in
this manual. Before re-assembling the tool:
•
Inspect components for scoring, excessive
wear, and damage; replace as necessary. Clean
components in mineral spirits or other solvent
compatible with O-ring seals. Clean O-ring grooves.
•
Replace all O-rings, Quad-rings, and Back-up rings.
See Assembly Drawings for guidance on positioning
these rings. Take care not to damage rings. Use
the rings that are supplied in Spare Parts Service
Kit
2502/2503KIT
. Smear LUBRIPLATE
®
130-AA or
SUPER-O-LUBE
®
on rings and mating parts to ease
assembly.
• Apply
Parker
Threadmate
®
, Loctite
®
567, or Slic-
Tite
®
to male pipe threads per manufacturer’s
instructions.
TO RE-ASSEMBLE THE TOOL:
1. See
Figure 8 - Piston Assembling Detail
and follow
instructions carefully.
2. Slide unloading valve through hole in piston - - the
valve fl ats must be to the rear of the tool.
3. Push end cap assembly over piston extension.
4. Screw in retaining ring - - tighten with spanner
wrench. Install socket head cap screw in end cap.
5. Push pintail defl ector over end cap - - it engages
ribs on cap.
6. Apply
Parker
Threadmate
®
, Loctite
®
567, or Slic-
Tite
®
to hose threads. Screw the hoses into the
handle. Slide shrouds over fi ttings.
7. Model
2502
: Assemble electrical cord to connector.
Screw strain relief grommet into handle. Push cord
through grommet. Attach cord to trigger switch.
Press switch into handle and tighten set screw
against switch. Pull excess cord down through
handle and grommet. Tighten strain relief grommet.
Model
A2502
: Thread air fi tting into handle. Attach
quick disconnect to air line. Attach air line to
handle’s air fi tting. Screw air trigger assembly into
handles trigger fi tting and tighten set screw against
fi tting.
8. Slide protective hose sleeve onto assembled hoses
and control cord/air hose.
9. Apply
Parker
Threadmate
®
, Loctite
®
567, or Slic-
Tite
®
to PULL and RETURN pressure hose threads.
Screw coupling nipple onto PULL pressure hose
(from “P” port of tool). Screw coupling body onto
RETURN pressure hose.
10. Install nose assembly per applicable instructions on
Nose Assembly Data Sheet
.
11. Connect hydraulic hoses to the POWERIG.
12. Connect the trigger connector/disconnect to the
POWERIG.
NOTE
:
See P
REPARATION
F
OR
U
SE
before operating the
tool.
If all test results are good, the tool is ready to return to
service.
A
SSEMBLY
WARNING: Do not omit any seals during
servicing or re-assembly; leaks will result
and serious personal injury can occur.
CAUTION: When re-assembling the tool,
always replace damaged and defective
parts, and all seals, wipers, and rings of
sub-assemblies.
CAUTION: Do not use TEFLON
®
tape on
pipe threads. Tape can shred, resulting in
malfunctions.
WARNING: Connect the tool’s hydraulic
hoses to the POWERIG
®
Hydraulic Unit
before connecting the (air or electric)
trigger assembly to it. If not connected in
this order, serious personal injury could
occur.
TO
TO
TO
O
R
R
R
E
E
E-
S
AS
AS
AS
S
SE
SE
SE
MB
MB
MB
LE
LE
LE
T
T
T
HE
HE
HE
T
T
T
OO
OO
OO
OO
L
L
L:
CAUTION: Do not use TEFLON
®
tape on
pipe threads. Tape can shred, resulting in
malfunctions.
