Operator`s manual

Ridge Tool Company
15
300 Power Drive
Figure 14 – Checking Thread Length
NOTE! If a ring gauge is not available, a fitting can be
used. This fitting should be representative of
those being used on the job. The pipe thread
should be cut to obtain 2 to 3 turns hand tight
engagement with fitting. If pipe thread is not prop-
er diameter the index line should be moved in the
direction of the OVER or UNDER size mark on
size bar. (Refer to “Installing Dies in Die Heads”).
Operating Instructions Using
Geared Threaders
WARNING
Do not wear gloves or loose clothing when oper-
ating Power Drive. Keep sleeves and jackets but-
toned. Do not reach across the machine, geared
threader or drive shaft.
Do not use this Power Drive if the foot switch is
broken or missing. Always wear eye protection to
protect eyes from dirt and other foreign objects.
To prevent tipping, proper set-up of the Threading
Machine and Geared Threader is required. Follow
instructions carefully.
Geared Threaders weigh 95 to 160 pounds. Two (2)
persons should be used to lift these threaders.
Adjusting Nos. 141 and 161 Geared
Threaders
Cam Plate (Pipe Size) Adjustment Procedure
1. Place threader on floor or workbench with drive shaft
up.
2. Pull knobs
(Figure 15) of cam plate and rotate cam
plate to desired pipe size marking on top of die head.
Release knobs when locating pins drop into hole in
selector plate.
Figure 15 – No. 141 Geared Threader with No. 844 Drive
Bar Installed (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 16) .
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.
WW
D
D
D
Die
Pipe
Die
Pipe
A - Full Width Die Thread
Starting to Cut Thread
Flush
(Basic Size)
One Turn Large
(Maximum Size)
One Turn Small
(Minimum Size)
Thin Ring
Gage
Completed Thread
Die Flush
With End
of Pipe
B - Checking Threads Within Pipe Gage
Drive Shaft
No. 844
Drive Bar
Set Screws
Clamp
Screw
Cam
Plate Knob
Cam
Plate Knob