535 Manual Pipe and Bolt Threading Machine
To prime the Model A Pump, the following procedure
should be followed:
1. Remove button plug located on cover.
2. Remove primer screw through opening with allen
wrench.
3. Fill pump with oil.
4. Replace primer screw and button plug before starting
machine or pump will drain itself immediately.
NOTE! If machine must be primed on a frequent basis,
it is an indication the pump is in need of repair.
Operation Instructions Using
Geared Threaders
WARNING
Do not wear gloves or loose clothing when oper-
ating Threading Machine. Keep sleeves and jack-
ets buttoned. Do not reach across the machine,
geared threader or drive shaft.
Do not use this Threading Machine 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 13) 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.
12
Reference
Lines (3)
Cam Plate
Knob (2)
Figure 13 – No. 141 Geared Threader with Drive Shaft
Up (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 13).
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 thread) set head
at top line on guide post. This line is marked (2T UNDER).
Changing Posts For Straight Or Tapered
Threads
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
Ridge Tool Company
Guide Post
Head
Drive Shaft
Clamp Screw