size bar. For bolt threads, align index line with BOLT
line on size bar.
9. Tighten clamp lever.
10. If oversize or undersize threads are required, set the
index line in direction of OVER or UNDER size mark
on size bar.
11. Replace die head in machine.
Figure 12 – Universal Quick-Opening Die Head
Installing Dies in No. 815A Self-opening
Die Head (Right Hand only)
NOTE! The No. 815 Self-Opening Die Head
(Figure
13)
for right hand threads requires four sets of
dies to thread pipe ranging from
1
/
8
" through 2".
One set of dies is required for each of the fol-
lowing pipe size ranges: (
1
/
8
"), (
1
/
4
" –
3
/
8
"), (
1
/
2
" –
3
/
4
") and (1" – 2"). Bolt threading requires a sep-
arate set of dies for each bolt size.
1. With machine unplugged, remove die head. Place
self-opening die head on bench in vertical position.
2. Make sure trigger assembly is released.
3. Loosen clamp lever approximately six turns.
4. Pull lock screw out of slot under size bar so that roll
pin in lock screw will by-pass slot. Position size bar so
that index line on lock screw is all the way to the
end of REMOVE DIES position.
5. Lay head down with numbers up.
6. Remove worn dies from die head.
7. Insert new dies to mark on side of dies. Die numbers
1 through 4 on the dies must agree with those on die
head.
8. Rotate cam plate lever back to lock dies in head.
940-600.015.10_REV. D
13
Removing Pipe from the Power Drive
1. Flip directional switch to OFF.
2. Use repeated and forceful clockwise spins of the
speed chuck handwheel at the front of the Power
Drive to release the workpiece from the speed
chuck jaws.
3. If necessary, loosen the rear centering device using
a clockwise rotation of the handwheel at the rear of
the Power Drive.
4. Slide the workpiece out of the Power Drive, keeping a
firm grip on the workpiece as it clears the Power Drive.
To avoid injury from falling parts or equip-
ment tip-overs when handling long workpieces, make
sure that the end farthest from the Power Drive is sup-
ported prior to removal.
5. Clean up any spills or splatter on the ground sur-
rounding the Power Drive.
Installing Dies in No. 811A Quick-
opening Die Head (Right and Left Hand)
NOTE! The No. 811A Universal Die Head
(Figure 12)
for
right hand threads requires four sets of dies to
thread pipe ranging from
1
/
8
" through 2". One
set of dies is required for each of the following
pipe size ranges: (
1
/
8
"), (
1
/
4
" –
3
/
8
"), (
1
/
2
" –
3
/
4
") and
(1" – 2"). The
1
/
8
" pipe dies are not available for
left hand die head. Bolt threading requires a
separate set of dies for each bolt size. No bolt
dies are available for left hand universal die
heads.
1. With machine unplugged, remove die head. Lay die
head on bench with numbers face up.
2. Flip throwout lever to OPEN position.
3. Loosen clamp lever approximately three turns.
4. Lift tongue of clamp lever washer up and out of
slot under size bar. Slide throwout lever all the way
to end of slot in the OVER direction indicated on size
bar (in direction of CHANGE DIES arrow on rear of
cam plate).
5. Remove dies from die head.
6. Insert new dies to mark on side of dies. Die numbers
1 through 4 on the dies must agree with those on die
head.
7. Slide throwout lever back so that tongue of clamp
lever washer will drop in slot under size bar.
8. Adust die head size bar until the index line on lock
screw or link is aligned with proper size mark on
300 Power Drive
WARNING
Index Line
Link
Throwout
Lever
Washer
Head
Clamp Lever
Size Bar
