7
Be sure to apply good rubber lubricant to all O-rings
prior to reassembling. It is advised that No. 222 Loc-
tite be applied to ball seat (31) and set screw (36)
threaded components when reassembling. Allow 24
hour curing time for loctited components before
assembling by-pass valve assembly (745651) into
housing (19).
3A. End Plug and Drawbolt Piston Assembly
without Disassembly Tool 749C63
Remove pivot handle, pump piston and by-pass valve
assemblies from tool. Remove pulling head internal
components from tool and replace pulling head sleeve,
with nosepiece removed, back in nose fitting (3).
Place a spacer block
(
7
/16"
x 1
1
/
8
" x 1/8") in position
where pivot handle was mounted. This will help
stabilize tool during compression of spring (14).
Remove screw lock (18) and Stat-O-Seal (17). Place
tool and spacer block in a press with a 12" minimum
opening capacity. Press pulling head sleeve and end
plug (3A) into tool enough to relieve pressure or to allow
removal of retaining ring (1) and allow its removal.
WARNING: Spring (14) is compressed under very
heavy pressure. Remove with care! Approved eye
protection should be worn.
Carefully raise press anvil allowing pulling head sleeve,
end plug and drawbolt piston. Assembly (2-14) will be
forced from tool by 60 pounds pressure applied by
spring (14). Remove tool from press and remove pull-
ing head sleeve from nose fitting (3).
Remove end plug (3A) from drawbolt piston assembly
(5-13). Remove drawbolt piston assembly from hous-
ing. Remove O-ring (5) and retaining ring (6) in order
to remove spring (8) and valve stem (9). Remove re-
taining ring (13) in order to disassemble springs (8),
valve actuating washer (11) and spring seat (12).
Remove O-ring (4) and back-up ring (10). Spring (14)
is also removed from housing at this time.
Carefully inspect all the components 1 through 15 for
wear or damage and replace as required. To
reassemble reverse above procedure being sure all
O-rings are coated with a good rubber lubricant.
3B. End Plug and Drawbolt Piston Assembly.
Disassembly Instructions Using Disassembly Tool
749C64.
Prior to any disassembly...remove screws (18) and Stat-
O-Seals (11). Drain transmission Fluid from the riveter.
During disassembly, use care not to mar, nick or burr
any smooth surface that comes in contact with O-rings.
Attach 749B68 cap to nose fitting (3). Slide disassem-
bly tool over riveter housing. Attach tool to riveter by
installing hex soc. cap screw (P-1200) thru roll pin (28)
and securing with wing nut (P-1199). Turn toggle screw
(P-1201) through crossbar (745B67) until it tightens into
cap 749B68. Turn toggle screw with
3
/16"
hex key
(P-1187) clockwise until pressure has been relieved on
retaining ring (1) allowing its removal.
WARNING: Spring (8) is compressed under
very heavy pressure. Remove with care! Ap-
proved eye protection should be worn.
Remove screw lock (12) and Stat-O-Seal (11). Carefully
turn
3
/16
hex key (P-1187) counter-clockwise allowing
end plug and drawbolt piston assembly (2-7) to be
forced from tool by 60 pounds spring (8) pressure.
Remove disassembly tool from riveter.
Remove end plug (3A) from drawbolt piston assembly
(4-7). Remove drawbolt piston from housing. Remove
O-ring (5). Remove O-ring (4) and back-up ring (7).
Spring (8) is also removed from housing at this time.
Carefully inspect all parts (1 thru 10) for wear or
damage and replace as required. To reassemble re-
verse above procedure being sure all O-rings are
coated with a good rubber lubricant.
4. Bladder Assembly
Remove handle grip (43) on stationary handle.
Remove retaining ring (30). Thread on 8-32 bolt into
vent plub (29) and extract bladder assembly. Check
components 27 through 30 for damage and replace as
necessary. To reassemble, reverse procedure being
sure all O-rings are coated with a good rubber
lubricant.
