Installing Dies In Semi-Automatic Die Head; Checking Thread Length - RIDGID 300 Compact Operator's Manual

300 Compact Pipe and Bolt Threading Machine
Roll Pin
Index Line
Lock Screw
Throwout
Lever
Figure 12 – Universal Self-Opening Die Head
11. Tighten clamp lever.
12. If oversize or undersize threads are required, set the
index line in direction of OVER or UNDER size
mark on size bar.
Installing Dies In
Model 816/817 Die Heads
The Semi-Automatic Die Head (Figure 13) for right hand
threads requires four sets of dies to thread pipe ranging
from 1 / through 2 . One set of dies is required for each
8
of the following pipe size ranges: (
and 3 / ) and (1 through 2 ). Bolt threading requires a
4
separate set of dies for each bolt size.
1. Depress handle so that cam plate rests (Figure 13 –
Model 816/817 Die Head) against the stop (as
shown).
2. Lay the die head down flat on a table or bench with
the numbers facing up.
3. Pull up on the plunger knob and push the handle all
the way to the left.
4. Select the correct dies for the size desired. (Size
marked on the back or face of the dies.)
12
Size Bar
Clamp
Lever
Trigger
Assembly
1 / ), ( 1 / and 3 / ), ( 1 /
8 4 8 2
Ridge Tool Company
5. Numbers on the dies must correspond with those
on the die head slots. Insert dies to the line marked on
the dies – numbered edge up.
6. Rotate the handle back to the right so that the plunger
knob pops back down flush against the die head.
7. To set or adjust for desired size, loosen the screw for
the desired position block size, move the block to the
right to make it undersize and to the left to make it
oversized. When setting blocks for new dies start
with the position block on the middle mark and
adjust from there.
Handle
Plunger Knob
Figure 13 – Semi-Automatic Die Head

Checking Thread Length

1. Thread is cut to proper length when end of pipe is
flush with edge of dies (Figure 14).
2. Die Head is adjustable to obtain proper thread diam-
eter. If possible, threads should be checked with a
thread ring gage (Figure 14). A proper thread is
cut when end of pipe is plus or minus one turn of
being flush with face of ring gauge.
Size Stop