Ridgid C-888-X Operating Instructions

Ridge T ool Co., Elyria, Ohio, U.S.A.

Set Up and Threading Instructions

To Thread with a No. 141 Threader and 200, 300, 400 or 400A RIDGID Power Drive, equipment (A, B or D, C) must
be used. For operation set-up see Figure 1, below, with a 300 Power Drive.

2. RIDGID Close Coupled Method

This operation will require a RIDGID No. 318 Oiler in
addition to the items shown at top of page.

IMPORTANT: Do not plug Power Drive into electrical

outlet until steps 2-A through 2-D are
completed. When ready, make sure
Power Drive is plugged into an inter­nally grounded electrical system. If
system is not internally grounded, then
ground Po wer Drive in accor dance with
Article 250 of the National Electrical
Code.

A. Adjust Threader to size as previously explained. With

Threader on floor or workbench with Drive Shaft up,
place No. 844 Drive Bar on Threader Drive Shaft and
tighten the two Set Screws in Drive Bar Head.

NOTE: Step B is a two man operation.

B. With No. 844 Drive Bar securely fastened to Threader

Drive Shaft, lift Threader up carefully and insert shaft
of Drive Bar into front chuck of Power Drive. While
one man holds Threader up, the other man tightens
the jaws of Power Drive with other hand. Jaws should
tighten into “V” shaped notches of No. 844 Drive Bar
to be correctly mounted. Close rear centering device
onto shaft of Drive Bar.

C. Correct location for No. 318 Oiler is directly under

Threader. The No. 46 Pipe Support should be no clos­er than approximately two and one-half feet from
Threader and in line so it will support pipe being thread­ed. At this time, depending upon which Threader is
being used, attach either No. 758 Loop or E-3675

Adapter Bracket to Threader. Slide support bar of
Power Drive through hole in either No. 758 Loop or E­3675 Adapter Bracket.

D. Insert pipe in Threader and center end in throat of

Dies. Tighten W orkholder . Clamp Screw must be tight­ened SECURELY. You are now ready to thread.

IMPORTANT: Plug Power Drive into internally ground-

ed electrical system.

E. Move Switch of power drive to forward. During thread-

ing operation, flood Dies with RIDGID Thread Cutting
Oil to assure perfect threads and long die life.

F. When red “STOP” line appears on Pinion Sleeve,

thread is completed. Stop Threading! Reverse
Threader about one-quarter revolution by power, then
pull knobs and turn Cam Plate to “CD” mark on top of
Die Head. Unplug Power Drive cord from electrical
system. Pipe may be removed at this time by loosen­ing Clamp Screw and turning Workholder Scroll to
“OPEN” position.

G. RIDGID Geared Threaders are designed so Pinion

Shaft will automatically disengage if Threader is acci­dentally run on pipe past a full thread length. This pre­vents jamming.

IMPORTANT . . .

If, by accident, a RIDGID Geared Threader is backed off
too far and threaded barrel becomes disengaged from
Workholder, the Threader must be put on a bench and
the threads re-engaged carefully by HAND, NOT BY
POWER.

B

No. 758 Loop for 141
& 4PJ Threaders with
loop hole on gear case.

A

No. 844 Drive Bar

D

No. E-3675 Adapter
Bracket for all 4P and
4PJ Series Threaders
without loop hole on
gear case.

C

No. 46 Pipe Support

Figure 1

A

B D

C

or

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit

Ridge T ool Co., Elyria, Ohio, U.S.A.

Universal Drive Shaft Method

Do not plug Power Drive into electrical system until
steps A through E are completed.

A. This operation will require a RIDGID No. 840 Universal

Drive Shaft, Foot Switch, Geared Threader, Vise Stand
capable of holding size pipe being threader and a
Power Drive. When threading pipe larger than 2″,
Power Drive and Vise Stand must be securely
anchored, or provisions made to make sure Power
Drive and Vise Stand cannot tip over as a result of
threading torque built up. The Vise Stand must be in
line with, and on the same level as the front chuck of
Power Drive. The extended length of the No. 840
Universal Drive Shaft should be maximum distance
between Power Drive and Vise Stand.

B. Slide long hexagon end of Universal Drive Shaft into

front chuck of Power Drive. Tighten front chuck and
rear centering device.

C. Fasten pipe securely onto Vise Stand. Long pieces of

pipe should be supported by a RIDGID No. 92 Pipe
Support to prevent Vise Stand and Threader from tip­ping up.

D. After Threader is adjusted to size per instructions on

first page, slide Threader onto pipe. Carefully center
end of pipe in throats of Dies. Workholder clamp
screw must be tightened securely.

E. Slip square socket of No. 840 Universal Drive Shaft

over end of Threader Drive Shaft and tighten set
screws. When properly positioned, sliding shank of
Universal Drive Shaft should neither be fully extended
nor fully closed. At this time, take any other steps to to
insure stability of Vise Stand and Power Drive.

F. Locate Foot Switch as shown above and plug Foot

Switch cord into an internally grounder electrical sys­tem. Plug Power Drive cord into Foot Switch cord. Put
Power Drive switch into forward (FOR) position.
Operator should now locate Foot Switch and himself
as shown with Oiler in position. To operate this setup
safely, use Foot Switch at all times to start and stop
Power Drive.

NOTE: During Threading, use RIDGID Thread Cutting

Oil freely.

IMPORTANT: When changing any part of this setup

always unplug Foot Switch cord from
electrical system.

G. Threading is completed when red “STOP” line

appears on Pinion Sleeve. Stop Threading! Put Power
Drive switch in reverse (REV) and reverse Threader
about one-half turn by means of Foot Switch. Unplug
Foot Switch. Pull knobs on Threader and turn Cam
Plate to “CD” mark on top of Die Head. Loosen Clamp
Screw, turn W orkholder Scroll to “OPEN” position and
remove Threader from pipe.

50″ Extended

41″ Closed

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit

C-888-X PINION SHAFT

ASSEMBLY
INCLUDES:
E-1075 Pinion Shaft with Gear
E-1937 Retaining Collar
E-1939 Pressure Ring
E-1940 Pressure Pin (3)
E-1941 Pinion Shaft Ring
E-2016 Split Ring
E-1074 Drive Shaft
E-3838 Wear Plug
E-4669 Spring
E-6027-X Pinion Sleeve

E-1075 Pinion
Shaft with Gear

E-4669 Spring

E-3838 Wear Plug

E-620 Name Plate
W/E-913-1 Drive Screws (4)

Gear Case B-935

B-934 (NPT)
B-934-B (BSPT)
Workholder

Wrench E-1731

E-3583-X
Clamp Screw with Clip

B-1319 Workholder Scroll

Retaining Plate D-990
(6) Screw E-1028

C-853-X Workholder
Jaws (3 per set)

E-1996 Screw for Guide Post

C-782 (NPT)
C-782-B (BSPT)
Guide Post

E-258 Gear Case Spring Ring

C-659 (NPT)
C-659-B (BSPT)
Threaded Barrel

E-611 Screw for Guide Block
E-1997 Guide Block
E-1994 Locating Pin (2)

E-2009 Spring (2)
E-1995 Knob (2)

B-933 (NPT)
B-933-B (BSPT)
Selector Plate

E-2784 Pin (2)
B-932 Cam Plate
E-2922 Die Pin & Clip (5)

Head B-931

E-1028 Head

Screw (10)

Drive Shaft

E-1074

E-1937 Retaining Collar

E-2016 Split Ring

Pinion Sleeve E-6027-X

Pressure Ring E-1939

(3) Pressure Pin E-1940

E-1941 Pinion
Shaft Ring

E-3384 Stop

Screw

E-2378

Set Screw

Nylon Plug

E-504

GUIDE BLOCK must be
mounted with Stamped
side (E-1997) AGAINST

Selector Plate

ALL ORDERS FOR PARTS
MUST HAVE MODEL AND

SERIAL NUMBER

D-745-X Dies (5 per set)

One set threads

21/2″, 3″, 31/2″, 4″

Pipe or Conduit

For British Threader – specify

BSPT Dies. For American

Threaders specify NPT Dies

No. 141 Jam Proof Geared Threader

• Threads 21/2″, 3″, 31/2″ and 4″ pipe and conduit.

• Complete with 1 set of high-speed dies.

Ridge T ool Co., Elyria, Ohio, U.S.A.

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit

Ridge T ool Co., Elyria, Ohio, U.S.A.

9/03

Printed in U.S.A.

999-998-270.10

Adjusting Threaders for Size

1. No. 141 21/2″ to 4″ and No. 161 4″ to 6″ RIDGID Jam­Proof Threaders.

A. Place Threader on floor or workbench with Drive Shaft

up. Pull Knobs out and rotate Cam Plate to desired pipe
size marking on top of Die Head – release Knobs.

B. To set Threader for standard thread, there are two ref-

erence points – either may be used. Set bottom surface
of Pinion Sleeve housing of Die Head at red “Start” line
of Pinion Sleeve; or set upper surface of Die Head
which houses Guide Post even with center line at top
end of Guide Post. Unit is now set for standard thread.
To adjust, grasp Workholder and turn square end of
Drive Shaft or turn Gear Case by hand. For undersize
(deep throat) set head at top line on Guide Post. This
line is marked (2T UNDER). For oversize (shallow
thread) set Head at bottom line on Guide Post. This line
is marked (2T OVER).

C. To cut straight threads (NPSM or BSPP) – with same

Dies, set Head in position to cut standard threads.
Remove Screw from Gear Case at base of Guide Post.

No. 141 – 21/2″ to 4″ Jam Proof Geared Threader

Pull Guide Post up until Guide Block attached to
Selector Plate is disengaged from angle slot in Guide
Post. Turn Guide Post until straight slot faces inward.
Engage Guide Block in straight slot and push Guide
Post down into position. Replace Guide Post Screw.
Unit is now set to cut straight threads (NPSM or
BSPP). Operation will be the same as cutting taper
threads (NPT or BSPT).

D. To Change Dies, remove Stop Screw from Selector

Plate, pull Knobs out and rotate Cam Plate to “CD”
mark on top of Die Head. Remove worn Dies and
insert new Dies. Be sure Die numbers correspond
with slot numbers. 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 UNDER­SIZED thread.

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit

Ridge T ool Co., Elyria, Ohio, U.S.A.

Set Up and Threading Instructions

To Thread with a No. 161 Threader and 200, 300, 400 or 400A RIDGID Power Drive, equipment (A, B, C) must be
used. For operation set-up see Figure 1, below, with a 300 Power Drive.

2. RIDGID Close Coupled Method

This operation will require a RIDGID No. 318 Oiler in
addition to the items shown at top of page.

IMPORTANT: Do not plug Power Drive into electrical

outlet until steps 2-A through 2-D are
completed. When ready, make sure
Power Drive is plugged into an internal­ly grounded electrical system.If system
is not internally grounded, then ground
Power Drive in accordance with Article
250 of the National Electrical Code.

A. Adjust Threader to size as previously explained. With

Threader on floor or workbench with Drive Shaft up,
place No. 844 Drive Bar on Threader Drive Shaft and
tighten the two Set Screws in Drive Bar Head.

NOTE: Step B is a two man operation.

B. With No. 844 Drive Bar securely fastened to Threader

Drive Shaft, lift Threader up carefully and insert shaft
of Drive Bar into front chuck of Power Drive. While
one man holds Threader up, the other man tightens
the jaws of Power Drive with other hand. Jaws should
tighten into “V” shaped notches of No. 844 Drive Bar
to be correctly mounted. Close rear centering device
onto shaft of Drive Bar.

C. Correct location for No. 318 Oiler is directly under

Threader. The No. 46 Pipe Support should be no clos­er than approximately two and one-half feet from
Threader and in line so it will support pipe being thread­ed. At this time attach No. 346 Support Arms to
Threader and Power Drive.

D. Insert pipe in Threader and center end in throat of

Dies. Tighten W orkholder . Clamp Screw must be tight­ened SECURELY. You are now ready to thread.

IMPORTANT: Plug Power Drive into internally ground-

ed electrical system.

E. Move Switch of power drive to FORWARD. During

threading operation, flood Dies with RIDGID Thread
Cutting Oil to assure perfect threads and long die life.

F. When red “STOP” line appears on Pinion Sleeve,

thread is completed. Stop Threading! Reverse
Threader about one-quarter revolution by power, then
pull knobs and turn Cam Plate to “CD” mark on top of
Die Head. Unplug Power Drive cord from electrical
system. Pipe may be removed at this time by loosen­ing Clamp Screw and turning Workholder Scroll to
“OPEN” position.

G. RIDGID Geared Threaders are designed so Pinion

Shaft will automatically disengage if Threader is acci­dentally run on pipe past a full thread length. This pre­vents jamming.

IMPORTANT . . .

If, by accident, a RIDGID Geared Threader is backed off
too far and threaded barrel becomes disengaged from
Workholder, the Threader must be put on a bench and
the threads re-engaged carefully by HAND, NOT BY
POWER.

B

No. 346 Support Arms

A

No. 844 Drive Bar

C

No. 46 Pipe Support

Figure 1

A

B

C

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit

Ridge T ool Co., Elyria, Ohio, U.S.A.

Universal Drive Shaft Method

Do not plug Power Drive into electrical system until
steps A through E are completed.

A. This operation will require a RIDGID No. 840 Universal

Drive Shaft, Foot Switch, Geared Threader, Vise Stand
capable of holding size pipe being threader and a
Power Drive. When threading pipe larger than 2″,
Power Drive and Vise Stand must be securely
anchored, or provisions made to make sure Power
Drive and Vise Stand cannot tip over as a result of
threading torque built up. The Vise Stand must be in
line with, and on the same level as the front chuck of
Power Drive. The extended length of the No. 840
Universal Drive Shaft should be maximum distance
between Power Drive and Vise Stand.

B. Slide long hexagon end of Universal Drive Shaft into

front chuck of Power Drive. Tighten front chuck and
rear centering device.

C. Fasten pipe securely onto Vise Stand. Long pieces of

pipe should be supported by a RIDGID No. 92 Pipe
Support to prevent Vise Stand and Threader from tip­ping up.

D. After Threader is adjusted to size per instructions on

first page, slide Threader onto pipe. Carefully center
end of pipe in throats of Dies. Workholder clamp
screw must be tightened securely.

E. Slip square socket of No. 840 Universal Drive Shaft

over end of Threader Drive Shaft and tighten set
screws. When properly positioned, sliding shank of
Universal Drive Shaft should neither be fully extended
nor fully closed. At this time, take any other steps to to
insure stability of Vise Stand and Power Drive.

F. Locate Foot Switch as shown above and plug Foot

Switch cord into an internally grounder electrical sys­tem. Plug Power Drive cord into Foot Switch cord. Put
Power Drive switch into forward (FOR) position.
Operator should now locate Foot Switch and himself
as shown with Oiler in position. To operate this setup
safely, use Foot Switch at all times to start and stop
Power Drive.

NOTE: During Threading, use RIDGID Thread Cutting

Oil freely.

IMPORTANT: When changing any part of this setup

always unplug Foot Switch cord from
electrical system.

G. Threading is completed when red “STOP” line

appears on Pinion Sleeve. Stop Threading! Put Power
Drive switch in reverse (REV) and reverse Threader
about one-half turn by means of Foot Switch. Unplug
Foot Switch. Pull knobs on Threader and turn Cam
Plate to “CD” mark on top of Die Head. Loosen Clamp
Screw, turn W orkholder Scroll to “OPEN” position and
remove Threader from pipe.

50″ Extended

41″ Closed

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit

C-778-X PINION SHAFT

ASSEMBLY
INCLUDES:
D-578 Pinion Shaft with Gear
E-579-X Pinion Sleeve
E-1945-1 Center Pin
E-2000 Spring
E-2001 Pinion Shaft Ring
E-2002 Pressure Ring
E-2003 Split Ring
E-2004 Drive Shaft
E-2005 Retaining Collar
E-2200 Pressure Pin (3)
E-3838 Wear Plug

D-578 Pinion
Shaft with Gear

E-2000 Spring

E-3838 Wear Plug

E-621 Name Plate
W/E-913-1 Drive Screws (4)

Gear Case A-21

A-33 (NPT)
A-33-B (BSPT)
Workholder

Wrench E-1731

E-3583-X
Clamp Screw with Clip

B-1333 Workholder Scroll

Retaining Plate C-854
(6) Screw E-1027

C-855-X Workholder
Jaws (3 per set)

E-1996 Screw for Guide Post

D-576 Gear Case Spring Ring

B-679 (NPT)
B-679-B (BSPT)
Threaded Barrel

E-611 Screw for Guide Block
E-1997 Guide Block
E-1994 Locating Pin (2)

E-2009 Spring (2)
E-1995 Knob (2)

B-680 (NPT)
B-680-B (BSPT)
Selector Plate

E-2784 Pin (2)
C-561 Cam Plate
E-2258 Die Pin & Clip (5)

Head A-20

E-1027 Head

Screw (10)

Drive Shaft

E-2004

E-2005 Retaining Collar

E-2003 Split Ring

Pinion Sleeve D-579-X

Pressure Ring E-2002

(3) Pressure Pin E-2200

E-2001 Pinion
Shaft Ring

E-3384 Stop

Screw

E-2378

Set Screw

Nylon Plug

E-504

GUIDE BLOCK must be
mounted with Stamped
side (E-1997) AGAINST

Selector Plate

ALL ORDERS FOR PARTS
MUST HAVE MODEL AND

SERIAL NUMBER

D-605-X Dies (5 per set)

One set threads

4″, 41/2″, 5″, 6″

Pipe or Conduit

For British Threader – specify

BSPT Dies. For American

Threaders specify NPT Dies

No. 161 Jam Proof Geared Threader

• Threads 4″, 41/2″, 5″ and 6″ pipe and conduit.

• Complete with 1 set of high-speed dies.

Ridge T ool Co., Elyria, Ohio, U.S.A.

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit

E-3303 Set Screw for Guide Post

C-571 (NPT)
C-571-B (BSPT) Guide Post

E-1945-1
Center Pin

Ridge T ool Co., Elyria, Ohio, U.S.A.

2/05

Printed in U.S.A.

999-998-275.10

Adjusting Threaders for Size

1. No. 141 21/2″ to 4″ and No. 161 4″ to 6″ RIDGID Jam­Proof Threaders.

A. Place Threader on floor or workbench with Drive Shaft

up. Pull Knobs out and rotate Cam Plate to desired pipe
size marking on top of Die Head – release Knobs.

B. To set Threader for standard thread, there are two ref-

erence points – either may be used. Set bottom surface
of Pinion Sleeve housing of Die Head at red “START”
line of Pinion Sleeve; or set upper surface of Die Head
which houses Guide Post even with center line at top
end of Guide Post. Unit is now set for standard thread.
To adjust, grasp Workholder and turn square end of
Drive Shaft or turn Gear Case by hand. For undersize
(deep throat) set head at top line on Guide Post. This
line is marked (2T UNDER). For oversize (shallow
thread) set Head at bottom line on Guide Post. This line
is marked (2T OVER).

C. To cut straight threads (NPSM or BSPP) – with same

Dies, set Head in position to cut standard threads.
Remove Screw from Gear Case at base of Guide Post.

No. 161 – 4″ to 6″ Jam Proof Geared Threader

Pull Guide Post up until Guide Block attached to
Selector Plate is disengaged from angle slot in Guide
Post. Turn Guide Post until straight slot faces inward.
Engage Guide Block in straight slot and push Guide
Post down into position. Replace Guide Post Screw.
Unit is now set to cut straight threads (NPSM or
BSPP). Operation will be the same as cutting taper
threads (NPT or BSPT).

D. To Change Dies, remove Stop Screw from Selector

Plate, pull Knobs out and rotate Cam Plate to “CD”
mark on top of Die Head. Remove worn Dies and
insert new Dies. Be sure Die numbers correspond
with slot numbers. 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 UNDER­SIZED thread.

Operating Instructions For
Jam Proof Geared Threaders for Pipe and Conduit