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No. 700 Portable Power Drive
Ridge Tool Company
8
2. Pull knobs (Figure 7) of cam plate and rotate cam
plate to desired pipe size marking on top of die head.
Release knobs when locating pins drop into holes in
selector plate.
Figure 7 – No 141 Geared Threader (No. 161 Threader
Similar)
Thread Size Adjustment Procedure
Grasp workholder and turn square end of drive shaft or
turn gear case by hand to respective reference lines on
guide post (Figure 8).
Standard Size Thread – Either one of the following
two (2) reference lines may be used.
Reference Line 1: Set bottom surface of die head at
red STANDARD line on pinion sleeve.
Reference Line 2: Set upper surface of die head
which houses guide post even with STANDARD
line at top end of guide post.
Oversize Thread: For oversize (shallow thread) set
head at bottom line on guide post. This line is marked (2T
OVER).
Undersize Thread: For undersize (deep throat) set head
at top line on guide post. This line is marked (2T UNDER).
Changing posts For Straight Or Tapered
Threads
(Figure 8)
1. Adjust threader to cut standard size threads using
“STANDARD” reference line.
2. Remove screw from gear case at base of guide post.
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, or tapered slot inward for tapered
thread. Figure 8 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 tapered threads (NPT or BSPT).
Changing Die Set
1. Remove stop screw (Figure 8) from selector plate.
2. Pull knobs (Figure 8) and rotate cam plate to CD
mark on top of die head.
3. Remove worn die set (Figure 8) and insert new die
set.
IMPORTANT: Be sure to replace complete die set. Die
numbers must correspond with slot num-
bers.
Figure 8 – No. 141 Geared Threader Showing Pinion
Sleeve And Guide Post Reference Lines
(No. 161 Geared Threader Similar)
Die (Set of 5)
Guide
Block
2T Under
Line
Standard
LIne
2T Over
Line
Screw
Guide Post
Gear Case
Selector Plate
Die Head
Stop
Screw
Red Stop
Line
Standard
Line
Pinion
Sleeve
Drive Shaft
No. 844
Drive Bar
Set Screws
Clamp
Screw
Cam
Plate Knob
Cam
Plate Knob
Selector
Plate Knob
Workholder