300 Compact Pipe and Bolt Threading Machine
Reference
Lines (3)
Cam Plate
Knob (2)
Figure 22 – No. 141 Geared Threader Showing Pinion
Sleeve and Guide Post Reference Lines
3. Pull guide post up until guide block attached to selec-
tor plate is disengaged from angle slot in guide post.
4. Turn guide post until straight slot faces inward for
straight thread. For tapered threads set tapered slot
inward. Figure 22 shows guide post set to cut tapered
thread.
5. Engage guide block in slot and push guide post
down into position.
6. Replace guide post screw.
Unit is now set to cut straight threads (NPSM or BSPP)
or taper threads (NPT or BSPT).
Changing Die Set
1. Remove stop screw (Figure 23) from selector plate.
2. Pull Knobs (Figure 21) and rotate cam plate to CD
mark on top of die head.
3. Remove worn die set (Figure 21) and insert new die
set.
IMPORTANT! Be sure to replace complete die set. Die num-
bers must correspond with slot numbers.
4. Rotate cam plate to original position and replace
stop screw.
NOTE! If it becomes necessary to remove or replace
the guide block, the stamped number E-1997 on
guide block must be AGAINST selector plate. If
stamped number is visible you will cut an UN-
DERSIZE thread.
16
Head
Guide Post
Drive Shaft
Cam
Plate Knob
Clamp Screw
Ridge Tool Company
Selector Plate
Die Head
Stop
Screw
Red Stop
Line
Standard
Line
Pinion
Sleeve
Figure 23 – No. 141 Geared Threader
Mounting 141 Geared Threader
Close-Coupled Only
WARNING
Only use 141 geared threader close cou-
pled with a 300 Compact.
DO NOT plug power cord in until geared threader is in-
stalled and ready to thread.
1. Remove die head from carriage. Raise cutter and
reamer. Move carriage as far away from chuck as
possible.
2. Open front jaws and rear centering head jaws.
3. Install the 844 drive bar onto the 141 geared thread-
er drive shaft and tighten 2 set screws. (Figure 24)
4. Insert large drive link post into loop hole on 141
geared threader and tighten set screw only enough to
retain drive link. Drive link should be able to swing
freely. (Figure 24)
5. Using two persons, raise 141 geared threader and set
on carriage, being sure to align post on drive link with
die head post hole on carriage. Insert No. 768 drive
link into carriage die head post hole.
6. Move carriage to rear and engage 844 drive bar in
front chuck. Be sure to align grooves on drive bar with
300 Compact chuck jaws.
7. Fully tighten set screw on drive link post.
8. Install flexible oil spout onto rear of drive link. Position
spout near top of 141, at mouth of chasers.
Die (Set of 5)
Guide
Block
2T Under
Line
Standard
LIne
2T Over
Line
Guide Post
Screw
Gear Case