Service Manual
1.
Put
together Connecting
Rod
Assembly
1322-019
and
Pump
Cup
766-035.
2.
Place Pump Guide
Pin
101-033
through
Connecting
Rod
Assembly 1322-019
and
Lever/Link Assembly 760A043.
3.
With Pump Assembly parts together, slide
the
unit into Pump Tube 760-094.
4.
Test
for
compression before
continuing
assembly. Place
3
/,
6
"
punch through hole
in
Pump Tube
760-094
and
Pivot
Pin
760-071
hole
on
Lever. Remove Unit from
vise,
pump
gun and
fire
to
check
for
proper operation.
If
operation
is
correct
continue
to
next step. Otherwise recheck
steps 1-3.
5.
With
Lever open about
2",
place Pump
Tube 760-094 back
in
vise.
6.
Slide front Barrel Guide
760B008
back
onto Pump Tube 760-094.
7.
Carefully drive Pivot
Pin
760-071
through
Pump
Tube
760-094
and
Lever/Link
Assembly
760A043
and
replace
Pivot
Pin
Retainer
760-072.
8.
Remove from Vise
and
replace Front
Set
Screw 760A027.
IV
BARREL
GROUP
A.
DISASSEMBLY
NOTE: Barrel 760-093
can be
removed with-
out
disassembling
Group
I, II, and
III.
1.
Remove
two (2)
Rear Sight Screws
160-029, Rear Sight 160-020
and
Elevator
160-021.
2.
Remove rear
and
front
Set
Screws
760A027.
3.
Slide
out
Barrel
760-093
and
unjam
or
replace
if
necessary.
B.
ASSEMBLY
1.
Replace Barrel
760-093.
NOTE:
When
replacing
Barrel
760-093,
be
sure that detent spot
in
Barrel 760-093
is
located properly over
Set
Screw holes
for
proper alignment.
2.
Replace rear
and
front
Set
Screws
760A027.
3.
Replace Rear Sight 160-020, Elevator
160-021
and
Rear
Sight
Screws 160-029.
NOTE:
Rear Sight Assembly must
be
replaced before test firing.
V
BB
PORT
COVER GROUP
A.
DISASSEMBLY
1.
Turn
BB
Port Cover
760-082
counterclock-
wise
and pry it
out.
B.
ASSEMBLY
1.
Place
BB
Port Cover
760-082
over hole
and
press
into
place.
VI
RECEIVER
GROUP
A.
DISASSEMBLY
1.
Remove Bolt Knob
760-050.
2.
Remove
two (2)
Receiver Screws 760-025
and one (1)
Receiver Screw 110-049.
3.
Place Bolt Lever 760-091
in
upright posi-
tion
and
lift
off
Right
Hand Receiver
Assembly
760A102.
4.
Inspect parts inside Right Hand Receiver
Assembly
760A102.
If
necessary
pry off
Interlock
Retainer 760A090;
and
remove
Interlock Spring 760A088, Interlock
760-087
and
Interlock Bushing 760-089.
Replace worn parts.
B.
ASSEMBLY
1.
Replace Interlock Assembly into Right
Hand Receiver
760-095
in
reverse order
of
disassembly.
2.
NOTE: Before replacing Right Hand
Receiver
Assembly 760A102, make sure
that
all
parts located
in
Left Hand Recei-
ver
760-096
are in
proper position. Pull
back Bolt Lever
760-091
and
Bolt Assem-
bly
760-098
so
that Sear 760-084 latches
on
last
click
in
cocked position. This
will
move
Bolt
Assembly 760-098 away
from
Interlock 760-087.
3.
Replace
Right
Hand
Receiver
Assembly
760A102.
NOTE:
If
difficulty
is
encountered
in
assembling Right Hand Receiver 760A102,
check
to see if
Barrel Support 760-074
is
lined
up
with
hole
in
Right Hand Receiver
760A102.
It is
helpful
to put
Lever Assem-
bly
in
open
position
and to
make sure
that
Bolt Assembly
is
back completely.
VII BB
RETAINER
GROUP
A.
DISASSEMBLY
1.
NOTE:
To
repair this group,
it is
necessary
to
remove
Receiver
Group
VI.
Remove
BB
Retainer 760A021 (see
Receiver
Group (VI).
NOTE:
If BB
Retainer 760A021 moves
back
and
forth
too
freely,
this will
indicate
that
detent
button
on BB
Retainer
760A021
is
broken
or
worn
and
part must
be
replaced.
VIII
TRIGGER
AND
SEAR GROUP
A.
DISASSEMBLY
NOTE:
To
repair this part
of gun it is
only
necessary
to
remove Receiver Group (VI)
and
BB
Retainer
Group
VII.
1.
Pry
Trigger Spring
761A005
forward
and
remove
Safety
760-017
from Left Hand
Receiver 760-096.
2.
Lift Trigger
Spring
761A005 from Trigger
Assembly 760A100
and
unhook from Sear
760-084.
3.
Pull
out
Trigger Pivot
Pin
760-016
from
Sear
760-084
and
remove Sear 760-084.
4.
Lift
out
Trigger Pivot
Pin
760-016
from
Left
Hand
Receiver 760-096
and
remove
Trigger
Assembly 760A100.
5.
Remove Trigger Return Spring 760-104.
B.
ASSEMBLY
1.
Replace Trigger Return Spring 760-104
over rear Trigger boss with
hooked
end
down
and to
rear
of
casting
as
shown
in
E.V.P.