300 Compact Pipe and Bolt Threading Machine
4. Clean up any oil spills or splatter on the ground
surrounding the Threading Machine.
Installing Dies In Quick-Opening Die
Head (Right and Left Hand)
The No. 811A Universal Die Head (Figure 11) for right
hand threads requires four sets of dies to thread pipe
" through 2". One set of dies is required
ranging from
1
/
8
for each of the following pipe size ranges: (
"), (
" and
") and (1" through 2"). Bolt threading
and
3
/
1
/
3
/
8
2
4
requires a separate set of dies for each bolt size. No bolt
dies are available for left hand universal die heads.
1. Lay die head on bench with numbers up.
2. Flip throwout lever to OPEN position.
3. Loosen clamp lever approximately three turns.
4. Lift tongue of clamp washer up and out of slot under
size bar. Slide throwout lever all the way to end of
slot in the change die direction indicated on cam
plate.
5. Remove dies from die head.
6. Insert new dies to mark on side of dies. Numbers 1
through 4 on the dies must match numbers on the
die head.
7. Slide throwout lever back so that tongue of clamp
lever washer will drop in slot under size bar.
8. Adjust die head size bar until index line on link is
aligned with proper size mark on size bar. For bolt
threads, align underline with bolt line on size bar.
Index Line
Link
Throwout
Lever
Figure 11 – Universal Quick-Opening Die Head
9. Tighten clamp lever.
10. If oversize or undersize threads are required, set
Installing Dies In Self-Opening Die Head
(Right Hand Only)
The No. 815A Self-Opening Die Head (Figure 12) for right
hand threads requires four sets of dies to thread pipe
"), (
"
1
/
1
/
ranging from
8
4
for each of the following pipe size ranges: (
3
/
requires a separate set of dies for each bolt size.
Washer
10. Adjust die head size bar until index line on lock
Head
Clamp Lever
Size Bar
Ridge Tool Company
the index line in direction of OVER or UNDER size
mark on size bar.
" through 2". One set of dies is required
1
/
8
"), (
" and
") and (1" through 2"). Bolt threading
1
/
3
/
8
2
4
1. Place self-opening die head on bench in vertical
position.
2. Make sure trigger assembly is released.
3. Loosen clamp lever approximately six full turns.
4. Pull lock screw out of slot under size bar so that roll
pin in lock screw will bypass slot. Position size bar
so that index line on lock screw is aligned with the
end of REMOVE DIES position.
5. Lay head down with numbers up.
6. Remove dies from die head.
7. Insert new dies to mark on side of dies. Numbers 1
through 4 on the dies must match numbers on the
die head.
8. Move throwout lever back to lock in dies.
9. With head in vertical position, rotate cam plate until
roll pin on lock screw can be positioned in slot
under size bar. In this position dies will lock in die
head. Make sure roll pin points toward end of size
bar marked REMOVE DIES.
screw or link is aligned with proper size mark on size
bar.
"), (
" and
1
/
1
/
8
4
11