RIDGID 300 Compact User Manual
Pipe and Bolt
Threading Machine
OPERATOR’S
MANUAL
• Français – 19
• Castellano – pág. 41
WARNING!
Read this Operator’s Manual
carefully before using this tool.
Failure to understand and
follow the contents of this
manual may result in electrical
shock, fire and/or serious
personal injury.
300
Compact
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
ii
Table of Contents
Recording Form for Machine Serial Number..............................................................................................................1
General Safety Information
Work Area...................................................................................................................................................................2
Electrical Safety..........................................................................................................................................................2
Personal Safety ..........................................................................................................................................................2
Tool Use and Care .....................................................................................................................................................3
Service........................................................................................................................................................................3
Specific Safety Information
Foot Switch Safety......................................................................................................................................................3
Machine Safety...........................................................................................................................................................3
Description, Specifications and Accessories
Description..................................................................................................................................................................4
Specifications .............................................................................................................................................................4
Machine Assembly........................................................................................................................................................5
Machine Inspection ......................................................................................................................................................7
Machine and Work Area Set-Up ..................................................................................................................................7
Operation Using Machine Mounted Tools
Installing Pipe ............................................................................................................................................................9
Cutting Pipe With No. 360 Cutter ..............................................................................................................................9
Reaming Pipe With No. 344 Reamer ........................................................................................................................9
Threading Pipe Or Rod With Quick-Opening, Self-Opening Or Semi-Automatic Die Head ....................................10
Removing Pipe ........................................................................................................................................................10
Installing Dies in Quick-Opening Die Head (Right Hand & Left Hand) ....................................................................11
Installing Dies in Self-Opening Die Head (Right Hand Only)....................................................................................11
Installing Dies in Semi-Automatic Die Head ............................................................................................................12
Checking Thread Length ..........................................................................................................................................12
No. 819 Nipple Chuck
Short or Close Nipple Threading Procedures...........................................................................................................13
916 Roll Groover Adapter Bracket............................................................................................................................14
Accessories ................................................................................................................................................................15
Maintenance Instructions
Lubrication................................................................................................................................................................15
Oil System Maintenance...........................................................................................................................................15
Jaw Insert Replacement...........................................................................................................................................16
Motor Brush Replacement........................................................................................................................................16
Machine Storage ........................................................................................................................................................16
Service and Repair......................................................................................................................................................17
Wiring Diagrams....................................................................................................................................................17-18
Lifetime Warranty ........................................................................................................................................Back Cover
300 Compact Pipe and Bolt Threading Machine
Record Serial Number below and retain product serial number which is located on nameplate.
Serial
No.
300 Compact Pipe and Bolt
Threading Machine
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
2
General Safety Information
WARNING! Read and understand all instructions. Failure
to follow all instructions listed below may
result in electric shock, fire, and/or serious
personal injury.
SAVE THESE INSTRUCTIONS!
Work Area
• Keep your work area clean and well lit. Cluttered
benches and dark areas invite accidents.
• Do not operate tools in explosive atmospheres,
such as in the presence of flammable liquids,
gases or dust. Tools create sparks which may ignite
the dust or fumes.
• Keep by-standers, children, and visitors away
while operating a tool. Distractions can cause you to
lose control.
• Keep floors dry and free of slippery materials
such as oil. Slippery floors invite accidents.
• Guard or barricade the area when work piece
extends beyond machine. A guard or barricade
that provides a minimum of three (3) feet clearance
around the work piece will reduce the risk of entanglement.
Electrical Safety
• Grounded tools must be plugged into an outlet,
properly installed and grounded in accordance
with all codes and ordinances. Never remove the
grounding prong or modify the plug in any way.
Do not use any adapter plugs. Check with a qualified electrician if you are in doubt as to whether
the outlet is properly grounded. If the tools should
electrically malfunction or break down, grounding provides a low resistance path to carry electricity away
from the user.
• Avoid body contact with grounded surfaces.
There is an increased risk of electrical shock if your
body is grounded.
• Do not expose electrical tools to rain or wet con-
ditions. Water entering a tool will increase the risk of
electrical shock.
• Do not abuse cord. Never use the cord to pull the
plug from an outlet. Keep cord away from heat, oil,
sharp edges or moving parts. Replace damaged
cords immediately. Damaged cords increase the
risk of electrical shock.
• When operating a tool outside, use an outdoor
extension cord marked “W-A” or “W”. These cords
are rated for outdoor use and reduce the risk of electrical shock.
• Use only three-wire extension cords which have
three-prong grounding plugs and three-pole receptacles which accept the tool’s plug. Use of other
extension cords will not ground the tool and increase
the risk of electrical shock.
• Use proper extension cords. (See chart.) Insufficient
conductor size will cause excessive voltage drop and
loss of power.
• Keep all electric connections dry and off the
ground. Do not touch plugs or tool with wet hands.
Reduces the risk of electrical shock.
Personal Safety
• Stay alert, watch what you are doing and use common sense when operating a power tool. Do not
use tool while tired or under the influence of drugs,
alcohol, or medications. A moment of inattention
while operating power tools may result in serious personal injury.
• Dress properly. Do not wear loose clothing or
jewelry. Contain long hair. Keep your hair, clothing,
and gloves away from moving parts. Loose clothes,
jewelry, or long hair can be caught in moving parts.
• Avoid accidental starting. Be sure switch is OFF
before plugging in. Plugging tools in that have the
switch ON invites accidents.
• Remove adjusting keys before turning the tool
ON. A wrench or a key that is left attached to a rotating
part of the tool may result in personal injury.
• Do not overreach. Keep proper footing and bal-
ance at all times. Proper footing and balance enables
better control of the tool in unexpected situations.
Grounding prong
Cover of
grounded
outlet box
Grounding prong
Minimum Wire Gauge for Extension Cord
Nameplate
Amps
Total Length (in feet)
0 – 25 26 – 50 51 – 100
0 – 6 18 AWG 16 AWG 16 AWG
6 – 10 18 AWG 16 AWG 14 AWG
10 – 12 16 AWG 16 AWG 14 AWG
12 – 16 14 AWG 12 AWG
NOT RECOMMENDED
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 3
• Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes, hard hat or
hearing protection must be used for appropriate conditions.
Tool Use and Care
• Do not use tool if switch does not turn it ON or
OFF. Any tool that cannot be controlled with the switch
is dangerous and must be repaired.
• Disconnect the plug from the power source before
making any adjustments, changing accessories, or
storing the tool. Such preventive safety measures
reduce the risk of starting the tool accidentally.
• Store idle tools out of the reach of children and
other untrained persons. Tools are dangerous in
the hands of untrained users.
• Check for misalignment or binding of moving parts,
breakage of parts, and any other condition that
may affect the tool’s operation. If damaged, have the
tool serviced before using. Many accidents are
caused by poorly maintained tools.
• Use only accessories that are recommended by
the manufacturer for your model. Accessories that
may be suitable for one tool may become hazardous
when used on another tool.
• Keep handles dry and clean; free from oil and
grease. Allows for better control of the tool.
Service
• Tool service must be performed only by qualified
repair personnel. Service or maintenance performed
by unqualified repair personnel could result in injury.
• When servicing a tool, use only identical replacement parts. Follow instructions in the Maintenance
Section of this manual. Use of unauthorized parts or
failure to follow maintenance instructions may create a
risk of electrical shock or injury.
Specific Safety Information
WARNING
Read this operator’s manual carefully before using
the 300 Compact Threading Machine. Failure to
understand and follow the contents of this manual
may result in electrical shock, fire and/or serious
personal injury.
Call the Ridge Tool Company, Technical Service Department at (800) 519-3456 if you have any questions.
Foot Switch Safety
WARNING
Using a threading machine without a foot switch
increases the risk of serious injury. A foot switch
provides better control by letting you shut off the
motor by removing your foot. If clothing should
become caught in the machine, it will continue to
wind up, pulling you into the machine. Because the
machine has high torque, the clothing itself can
bind around your arm or other body parts with
enough force to crush or break bones.
Machine Safety
• Threading Machine is made to thread and cut pipe
or bolt and to power roll grooving equipment.
Follow instructions on proper use of this machine.
Do not use for other purposes such as drilling
holes or turning winches. Other uses or modifying
this power drive for other applications may increase the
risk of serious injury.
• Secure machine to bench or stand. Support long
heavy pipe with pipe supports. This practice will
prevent tipping.
• Do not wear gloves or loose clothing when operating machine. Keep sleeves and jackets buttoned.
Do not reach across the machine or pipe. Clothing
can be caught by the pipe or machine resulting in
entanglement and serious injury.
• Operate machine from side with REV/OFF/FOR
switch. Eliminates need to reach over the machine.
• Do not use this machine if the foot switch is broken or missing. Foot switch is a safety device to
prevent serious injury.
• Keep hands away from rotating pipe and fittings.
Stop the machine before wiping pipe threads or
screwing on fittings. Allow the machine to come to
a complete stop before touching the pipe or
machine chucks. This practice will prevent entan-
glement and serious injury.
• Do not use this machine to make or break fittings. This practice is not an intended use of the
machine and can result in serious injury.
• Tighten chuck handwheel and engage rear centering device on the pipe before turning on the
machine. Prevents oscillation of the pipe.
• Keep covers in place. Do not operate the machine
with covers removed. Exposure to moving parts
may result in entanglement and serious injury.
Controls.........................Rotary Type FOR/OFF/REV
Switch and ON/OFF
Foot Switch
Pump.............................Gerotor-type
Cutter.............................No. 360 – Roll-Type Cut-off,
Self-Centering, Full Floating
Pipe – 1/8″ through 2″
Bolt – 1/4″ through 1″
Reamer..........................No. 344 5-Flute Cone,
Right Hand, 1/8″ through 2″
Weight...........................115 lbs.
Standard Equipment
Model No. 300 Compact Threading Machine with
Foot Switch
1 – No. 811-A Universal Quick-Opening Die Head
1 – No. 344 Reamer
1 – No. 360 Cutter
1 – Set
1
/2″ – 3/4″ Universal Alloy Dies
1 – Set 1″ – 2″ Universal Alloy Dies
1 – Gallon Nu-Clear Oil
All machines have 25-60 Hz Universal 1/2HP singlephase motors.
NOTE! NPT Dies are for NPT Die Heads only. BSPT
Dies are for BSPT Die Heads only. Please use
Catalog Item Nos. when ordering. High-Speed
Dies are recommended for use with machines
having an RPM of 52 or more.
• Lock foot switch when machine is not in use
(Figure 1). Avoids accidental starting.
Figure 1 – Locked Foot Switch
Description, Specifications and
Standard Equipment
Description
The RIDGID Model 300 Compact Threading Machine is
an electric motor-driven machine which centers and
chucks pipe, conduit and rod (bolt stock) and rotates it
while threading, cutting and reaming operations are performed. Left-hand or right-hand rotation can be selected
with the FOR/OFF/REV switch. Threading dies are mounted in self-opening or quick-opening die heads. An automatic oiling system is provided to flood the work.
The RIDGID Model 300 Compact Threading Machine can
also be used as a power source for roll grooving equipment.
Designed to attach to the carriage rail of the Threading
Machine, the roll grooving equipment forms standard roll
grooves on a variety of pipe sizes and materials.
Specifications
Threading Capacity.......Pipe 1/8″ – 2″
Bolt 1/4″ – 2″
Chuck............................Speed Grip Chuck with
Replaceable Jaw Inserts
Rear Centering
Device ...........................Scroll Operated, rotates with
chuck
Operating Speed...........38 RPM or 52 RPM
Motor:
Type ...........................Universal
Horsepower................1/2HP
Volts ...........................120V Single Phase AC
25-60 HZ
(230V On Request)
Amps..........................15 amps (38 RPM)
18 amps (52 RPM)
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
4
Catalog
No.
66947
67182
73447
75602
58752
58757
Model
No.
300 Compact
300 Compact
Kit
300 Compact
300 Compact
Kit
300 Compact
300 Compact
Description
115V 25-60 Hz
1/2″ – 2″ NPT
1/2″ – 2″ NPT
– includes Model 250 Folding
Wheel Stand
1/2″ – 2″ NPT, 115V, 25-60Hz
1/2″ – 2″ NPT, 115V, 25-60Hz
– includes 250 Folding
Wheel Stand
1/2″ – 2″ BSPT, 230V, 25-
60Hz (Aust. Only)
1/2″ – 2″ NPT, 230V, 25-60Hz
(Export Only)
RPM
38
38
52
52
38
38
Volt
115
115
115
115
230
230
Machines
Machine Assembly
WARNING
To prevent serious injury, proper assembly of the
Threading Machine is required. The following procedures should be followed:
Mounting Machine To Stand
The machine is designed to mount on the four stands
listed below.
No. 250 Folding Wheel Stand
1. With stand in raised position, place machine on stand
with carriage toward pneumatic pistons.
2. Position J-shaped steel hooks on rear of machine
such that hooks face pneumatic pistons and wrap
securely around horizontal support of stand. Attach
with 10mm hex bolts. Tighten securely.
3. Position front plate such that machine oil drain plug is
aligned with drain plug hole on plate. Locking bars
should be locked into raised position locking holes on
inner leg of stand. Attach plate with 10mm hex bolts.
Tighten securely.
4. To raise or lower Model 250 with 300 Compact
mounted, stand at carriage end of machine. Squeeze
locking bars together to disengage from locking holes.
Pull up on horizontal stand bar to raise. Push down on
horizontal stand bar to lower.
5. Oil seal pressure plate should be used when transporting 300 Compact on 250 Stand. To insert pressure plate: remove chip tray, slide tongue of plate
under 300 Compact hammer wheel, force spring clip
down and onto front edge of body casting as shown
in Figure 2A. Rubber seal on bottom of pressure
plate will cover drain holes in drip tray.
Figure 2 – 300 Compact on 250 Folding Wheel Stand
Figure 2A – Oil Seal Pressure Plate Properly Inserted
No. 100A, 150A and 200A Universal Stand
1. Parts diagram and parts list for the stands are
included in the 300 Compact Parts List.
2. Assemble stand with “inside” decals located towards
the inside of the stand (Figure 3).
3. Insert stand stop tabs into bottom of the legs as
shown in the detail drawing. Use the four (4) 3/8″-16
x 21/2″ hex bolts to secure the legs to the crossmember. Adjust the two halves of the stand to the
proper distance to fit into the rear legs on the stand.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 5
Model
No.
250
100A
150A
200A
Description
Folding Wheel Stand
Universal Leg & Tray Stand
Universal Wheel & Tray Stand
Universal Wheel & Cabinet Stand
Machine Stands
The stand stop bracket is not required or supplied
with the No. 100A Leg and Tray Stand.
Figure 3 – Stand Assembly
4. Insert axle into frame and secure it with a 1/2″ lock
washer and nut. Position stand stop bracket so that
the end of the bracket is held in place by the axle
shaft. Slide a wheel onto the axle. Slide a flat washer over the axle and install a cotter pin to hold the
wheel on the axle.
5. Mount machine to the stand using four (4) bolts
that mount into each corner of the base.
For proper balance and operation, RIDGID
machines must be mounted through the appropriate
holes in the legs (Figure 3).
Figure 4 – 300 Compact On 200A Wheel and Cabinet Stand
Figure 5 – 300 Compact On 100A Leg and Tray Stand
Mounting Machine To Bench
1. If a stand is not used, the machine should be mounted to a stable bench. To mount the unit on a bench,
use four (4) 1/4″ bolts in holes provided at each corner of machine base.
Failure to mount the threading machine to
a stable stand or bench may result in tipping and serious
injury.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
6
CAUTION
WARNING
1224
(Front)
535 (Front)
Pre-2001
Detail Section
300 Compact
1233, 1822 (Rear)
300 Compact
1233, 1822
(Front)
3
/8″ - 16 x 21/2″ Bolt
4 Required
535-A/535
Manual - 2001
535-A/535
Manual - 2001
535 (Rear)
Pre-2001
Machine Inspection
WARNING
To prevent serious injury, inspect your Threading
Machine. The following inspection procedures
should be performed on a daily basis:
1. Make sure Threading Machine is unplugged and
the directional switch is set to the OFF position
(Figure 6).
Figure 6 – No. 300 Compact Threading Machine
2. Clean the speed chuck jaws with a wire brush.
3. Inspect the jaw inserts for excessive wear. Refer to
the Maintenance Instructions if they need to be
replaced.
NOTE! For plastic and coated work pieces, special jaw
inserts (No. 97365) should be used to prevent
damaging the workpiece.
4. Make sure the foot switch is present and attached to
the Threading Machine.
Do not operate the Threading Machine
without a foot switch.
5. Inspect the power cord and plug for damage. If the
plug has been modified, is missing the grounding
pin or if the cord is damaged, do not use the
Threading Machine until the cord has been replaced.
6. Inspect the Threading Machine for any broken, mis-
ing, misaligned or binding parts as well as any other
conditions which may affect the safe and normal
operation of the machine. If any of these conditions
are present, do not use the Threading Machine until
any problem has been repaired.
7. Lubricate the Threading Machine if necessary according to the Maintenance Instructions.
8. Use tools and accessories that are designed for your
Threading Machine and meet the needs of your application. The correct tools and accessories allow you to
do the job successfully and safely. Accessories
designed for use with other equipment may be hazardous when used with this Threading Machine.
9. Clean any oil, grease or dirt from all handles and
controls. This reduces the risk of injury due to a tool or
control slipping from your grip.
Inspect the cutting edges of your tools and dies. If
necessary, have them replaced prior to using the
Threading Machine. Dull or damaged cutting tools and
dies can lead to binding, tool breakage and poor
quality threads.
Clean metal shavings and other debris from the chip
tray of the Threading Machine. Check the level and
quality of the thread cutting oil. Replace or add oil if
necessary. Reservoir in the base will hold approximately five (5) quarts of thread cutting oil.
NOTE! If using 250 Folding Stand, be sure to remove oil
seal pressure plate.
NOTE! Thread cutting oil lubricates and cools the threads
during the threading operation. A dirty or poor
grade cutting oil can result in poor thread quality.
NOTE! To drain dirty oil and properly maintain the oil sys-
tem, refer to the “Maintenance Instructions”.
Machine and Work Area Set-Up
WARNING
To prevent serious injury, proper set-up of the
machine and work area is required. The following
procedures should be followed to set-up the
machine.
1. Locate a work area that has the following:
• Adequate lighting
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 7
Rear
Centering
Device
FOR/OFF/REV
SWITCH
Motor
Cover
Hand
Hold
Chip Tray
Chuck Jaw
Handwheel
Carriage
Handwheel
Front
Hand
Hold
Quick Opening
Die Head
Cutter
Reamer
WARNING
• No flammable liquids, vapors or dust that may
ignite.
• Grounded electrical outlet
• Clear path to the electrical outlet that does not
contain any sources of heat or oil, sharp edges or
moving parts that may damage electrical cord.
• Dry place for machine and operator. Do not use
the machine while standing in water.
• Level ground
2. Clean up the work area prior to setting up any
equipment. Always wipe up any oil that may have
splashed or dripped from the machine to prevent
slips and falls.
3. If the workpiece extends more than four (4) feet
beyond the Threading Machine, use one or more
pipe stands to prevent tipping and the oscillation of
the pipe.
4. If the workpiece extends beyond the Threading
Machine, set-up guards or barricades to create a
minimum of three (3) feet of clearance around the
Threading Machine and workpiece. This “safety zone”
prevents others from accidentally contacting the
machine or workpiece and either causing the equipment to tip or becoming entangled in the rotating
parts.
5. If necessary, fill the reservoir with RIDGID Thread
Cutting Oil.
6. Make sure FOR/OFF/REV switch is in the OFF
position.
7. Position the foot switch so that the operator can
safely control the machine, tools and workpiece. It
should allow the operator to do the following:
• Stand facing the directional switch.
• Use the foot switch with his left foot.
• Have convenient access to the directional switch,
tools and chucks without reaching across the
machine.
Machine is designed for one person operation.
8. Plug the Threading Machine into the electrical outlet
making sure to position the power cord along the
clear path selected earlier. If the power cord does not
reach the outlet, use an extension cord in good condition.
WARNING
To avoid electrical shock and electrical fires,
never use an extension cord that is damaged or
does not meet the following requirements:
• The cord has a three-prong plug similar to
shown in Electrical Safety section.
• The cord is rated as “W” or “W-A” if being
used outdoors.
• The cord has sufficient wire thickness (14
AWG below 25′/12 AWG 25′-50′). If the wire
thickness is too small, the cord may overheat, melting the cord’s insulation or causing nearby objects to ignite.
To reduce risk of electrical shock, keep
all electrical connections dry and off the ground. Do
not touch plug with wet hands.
9. Check the Threading Machine to insure it is operating properly.
• Flip the directional switch to FOR (Forward). Press
and release the foot switch. Check that the Threading Machine rotates in a counterclockwise direction
as you are facing the front chuck. Have the Threading Machine serviced if it rotates in the wrong direction or if the foot switch does not control its stopping
or starting.
• Depress and hold the foot switch. Inspect the mov-
ing parts for misalignment, binding, odd noises or
any other unusual conditions that may affect the
safe and normal operation of the machine. If such
conditions are present, have the machine serviced.
• Flip the directional switch to REV (Reverse). Press
and release the foot switch. Check that that Threading Machine rotates in a clockwise direction as
you are facing the chuck.
• Release the foot switch and flip the directional
switch to OFF.
Operation Using
Machine-Mounted Tools
WARNING
Do not wear gloves or loose clothing when operating Threading Machine. Keep sleeves and jackets
buttoned. Do not reach across the machine or pipe.
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.
Keep hands away from rotating pipe and fittings.
Stop the machine before wiping pipe threads or
screwing on fittings. Allow the machine to come to
a complete stop before touching the pipe or machine chucks.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
8
WARNING
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 9
Figure 7 – Cutting Pipe With 300 Compact Threading
Machine
5. Flip the directional switch to FOR (Forward).
6. Grasp the pipe cutter’s feedscrew handle with both
hands (Figure 7).
7. Depress and hold down the foot switch with the left
foot.
8. Tighten the feedscrew handle slowly and continuously until the pipe is cut. Do not force the cutter into
the workpiece.
9. Release the foot switch and remove your foot from the
housing.
10. Swing pipe cutter back to the UP position.
Reaming Pipe With No. 344 Reamer
1. Move reamer arm into DOWN position.
2. Check the directional switch to insure it is in the
FOR (Forward) position. Depress and hold the foot
switch down with left foot.
3. Position reamer into pipe and complete reaming
by exerting pressure on handwheel (Figure 8).
Do not use this machine to “make-on” or “break
off” fittings. This practice is not an intended use of
this Threading Machine.
Installing Pipe In Threading Machine
1. Check to insure the cutter, reamer and die head are
swung to UP position.
2. Mark the pipe at the desired length if it is being cut
to length.
3. Insert the pipe into the Threading Machine so that
the end to be worked or the cutting mark is located
about 12 inches to the front of the speed chuck jaws.
4. Insert workpieces less than 2 feet long from the
front of the machine. Insert longer pipes through
either end so that the longer section extends out
beyond the rear of the Threading Machine.
To avoid equipment tip-overs, position
the pipe supports under the workpiece.
5. Tighten the rear centering device around the pipe by
using a counterclockwise rotation of the handwheel
at the rear of the Threading Machine. This prevents movement of the pipe that can result in poor
thread quality.
6. Secure the pipe by using repeated and forceful
counterclockwise spins of the speed chuck handwheel at the front of the Threading Machine. This
action “hammers” the jaws tightly around the pipe.
Cutting Pipe With No. 360 Cutter
1. Swing reamer and die head to UP position.
2. Move pipe cutter DOWN onto pipe and move carriage
with handwheel to line up cutter wheel with mark on
pipe.
3. Tighten cutter feed screw handle on pipe keeping
wheel aligned with the pipe.
4. Assume the correct operating posture (Figure 7).
This will allow you to maintain proper
balance and to safely keep control of the machine and
tools.
• Be sure you can quickly remove your foot from the
foot switch.
• Stand facing the directional switch.
• Be sure you have convenient access to directional
switch, tools and chucks.
• Do not reach across the machine or workpiece.
WARNING
WARNING
5. Turn carriage handwheel to bring dies against end
of pipe. Slight pressure on handwheel will start dies
(Figure 10).
Figure 10 – Threading Pipe With No. 811-A Quick
Opening Die Head
6. Quick-Opening 811A Die Head (Figure 11) – When
thread is completed, raise throwout lever to open
position, retracting dies.
Self-Opening 815A Die Head (Figure 12) – When
die head trigger contacts end of pipe, throwout
lever is automatically opening.
Semi-automatic die head (Figure 13) – When the
end of the pipe being threaded is flush with the
end of the number 1 die, hit the handle for the dies
to release the pipe.
7. Turn carriage handwheel to back die head off pipe.
8. Swing die head back to UP position.
Removing Pipe From
The Threading Machine
1. Use repeated and forceful clockwise spins of the
speed chuck handwheel at the front of the Threading
Machine to release the workpiece from the speed
chuck jaws.
2. If necessary, loosen the rear centering device using
a clockwise rotation of the handwheel at the rear of
the Threading Machine.
3. Slide the workpiece out of the Threading Machine,
keeping a firm grip on the workpiece as it clears the
Threading Machine.
To avoid injury from falling parts or equipment tip-overs when handling long workpieces, make
sure that the end farthest from the Threading Machine is
supported prior to removal.
Figure 8 – Reaming Pipe With No. 344 Reamer
4. Retract reamer and return reamer to UP position.
5. Release foot switch and remove your foot from the
housing.
Threading Pipe or Rod With
Quick-Opening, Self-Opening
or Semi-Automatic Die Head
1. Install die set. Refer to die installation procedure.
2. Swing cutter and reamer to UP position.
3. Swing die head to DOWN position with throwout
lever set to CLOSE position.
4. Check directional switch to insure it is in the FOR
(Forward) position. Depress and hold the foot switch
down with left foot.
NOTE! 300 Compact Machines have an automatic oil-
ing system that brings oil to the work through the
die head. Oil flow can be adjusted with oil flow
control valve located on back side of carriage
(Figure 9).
Figure 9 – Oil Flow Control
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
10
WARNING
Increase Flow
4. Clean up any oil spills or splatter on the ground
surrounding the Threading Machine.
Installing Dies In Quick-Opening Die
Head (Right and Left Hand)
The No. 811A Universal Die Head (Figure 11) for right
hand threads requires four sets of dies to thread pipe
ranging from 1/8″ through 2″. One set of dies is required
for each of the following pipe size ranges: (1/8″), (1/4″
and 3/8″), (1/2″ and 3/4″) and (1″ through 2″). Bolt threading
requires a separate set of dies for each bolt size. No bolt
dies are available for left hand universal die heads.
1. Lay die head on bench with numbers up.
2. Flip throwout lever to OPEN position.
3. Loosen clamp lever approximately three turns.
4. Lift tongue of clamp washer up and out of slot under
size bar. Slide throwout lever all the way to end of
slot in the change die direction indicated on cam
plate.
5. Remove dies from die head.
6. Insert new dies to mark on side of dies. Numbers 1
through 4 on the dies must match numbers on the
die head.
7. Slide throwout lever back so that tongue of clamp
lever washer will drop in slot under size bar.
8. Adjust die head size bar until index line on link is
aligned with proper size mark on size bar. For bolt
threads, align underline with bolt line on size bar.
Figure 11 – Universal Quick-Opening Die Head
9. Tighten clamp lever.
10. If oversize or undersize threads are required, set
the index line in direction of OVER or UNDER size
mark on size bar.
Installing Dies In Self-Opening Die Head
(Right Hand Only)
The No. 815A Self-Opening Die Head (Figure 12) for right
hand threads requires four sets of dies to thread pipe
ranging from 1/8″ through 2″. One set of dies is required
for each of the following pipe size ranges: (1/8″), (1/4″ and
3
/8″), (1/2″ and 3/4″) and (1″ through 2″). Bolt threading
requires a separate set of dies for each bolt size.
1. Place self-opening die head on bench in vertical
position.
2. Make sure trigger assembly is released.
3. Loosen clamp lever approximately six full turns.
4. Pull lock screw out of slot under size bar so that roll
pin in lock screw will bypass slot. Position size bar
so that index line on lock screw is aligned with the
end of REMOVE DIES position.
5. Lay head down with numbers up.
6. Remove dies from die head.
7. Insert new dies to mark on side of dies. Numbers 1
through 4 on the dies must match numbers on the
die head.
8. Move throwout lever back to lock in dies.
9. With head in vertical position, rotate cam plate until
roll pin on lock screw can be positioned in slot
under size bar. In this position dies will lock in die
head. Make sure roll pin points toward end of size
bar marked REMOVE DIES.
10. Adjust die head size bar until index line on lock
screw or link is aligned with proper size mark on size
bar.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 11
Index Line
Link
Throwout
Lever
Washer
Head
Clamp Lever
Size Bar
Figure 12 – Universal Self-Opening Die Head
11. Tighten clamp lever.
12. If oversize or undersize threads are required, set the
index line in direction of OVER or UNDER size
mark on size bar.
Installing Dies In
Model 816/817 Die Heads
The Semi-Automatic Die Head (Figure 13) for right hand
threads requires four sets of dies to thread pipe ranging
from 1/8″ through 2″. One set of dies is required for each
of the following pipe size ranges: (1/8″), (1/4″ and 3/8″), (1/2″
and 3/4″) and (1″ through 2″). Bolt threading requires a
separate set of dies for each bolt size.
1. Depress handle so that cam plate rests (Figure 13 –
Model 816/817 Die Head) against the stop (as
shown).
2. Lay the die head down flat on a table or bench with
the numbers facing up.
3. Pull up on the plunger knob and push the handle all
the way to the left.
4. Select the correct dies for the size desired. (Size
marked on the back or face of the dies.)
5. Numbers on the dies must correspond with those
on the die head slots. Insert dies to the line marked on
the dies – numbered edge up.
6. Rotate the handle back to the right so that the plunger
knob pops back down flush against the die head.
7. To set or adjust for desired size, loosen the screw for
the desired position block size, move the block to the
right to make it undersize and to the left to make it
oversized. When setting blocks for new dies start
with the position block on the middle mark and
adjust from there.
Figure 13 – Semi-Automatic Die Head
Checking Thread Length
1. Thread is cut to proper length when end of pipe is
flush with edge of dies (Figure 14).
2. Die Head is adjustable to obtain proper thread diameter. If possible, threads should be checked with a
thread ring gage (Figure 14). A proper thread is
cut when end of pipe is plus or minus one turn of
being flush with face of ring gauge.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
12
Roll Pin
Index Line
Size Bar
Lock Screw
Throwout
Lever
Clamp
Lever
Trigger
Assembly
Size Stop
Handle
Plunger Knob
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
proper 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”).
No. 819 Nipple Chuck
The RIDGID 819 Nipple Chuck is a quick and easy tool for
holding short and close nipples or studs for threading.
Capacity:1/8″ to 2″ Standard Pipe (NPT)
1
/4″ to 2″ Bolts or Studs (UNC or UNF)
Short or Close Nipple
Threading Procedure
WARNING
The REV/OFF/FOR switch should be in the OFF
position until nipple chuck is set up and ready to
thread.
1. Grip pipe in machine chuck. Thread and ream one
end and cut nipple to desired length.
2. Place nipple chuck body (Figure 15) in Threading
Machine chuck, gripping jaw grooves. Tighten chuck
with snap spin of handwheel.
3. Position insert (Figure 16) with small end toward
chuck body for 1/8″ to 3/4″ pipe; large end toward
chuck body for 1″ pipe; no insert required for 11/4″
pipe and up.
Figure 15 – Place Nipple Chuck Body in Power Drive
Figure 16 – Place Insert into Nipple Chuck
4. Select proper size nipple chuck adapter and screw
into nipple chuck (Figure 17) by hand. Tighten with
wrench provided with nipple chuck.
To prevent injury, remove wrench before
turning on machine.
5. Screw nipple threaded on one end into adapter by
hand. Turn directional switch to ON and press down
on foot switch. Ream and thread other end.
6. Insert pin on end of wrench (Figure 18) into one of
holes in nipple chuck release collar and turn. Remove
threaded nipple by hand.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 13
WW
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)
Ring
Gage
Completed Thread
Die Flush
With End
of Pipe
B - Checking Threads Within Pipe Gauge
Pipe Adapters Stud Adapters
1
/8″, 1/4″, 3/8″, 1/2″
1
/4″ to 2″ UNC
3
/4″, 1″, 11/4″, 11/2″
1
/4″ to 11/2″ UNF
WARNING
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
14
To prevent injury, remove wrench before
turning on machine.
Figure 17 – Installing Nipple Chuck Body and Adapter
Figure 18 – Installing Unfinished Nipple and Releasing
Finished Nipple With Wrench
916 Groover Adapter Bracket – 300
Compact
NOTE! Adapter bracket must be used to mount the
916 Roll Groover to the 300 Compact Threading
Machine.
NOTE! No. 250 Stand must be in the upright and locked
position prior to mounting the 916 Adapter
Bracket.
1. Place cutter, die head and reamer in UP position.
2. Position carriage as close to chuck hammer wheel
as possible.
3. 916 Groover Bracket should be facing such that
extension rails extend beyond front of machine.
Note that the retaining pin is attached to the operator side of the 916 Groover Bracket.
4. Attach adapter bracket to 300 Compact by placing Cshaped section of bracket on rear rail (opposite operator) and bringing operator side of bracket down
onto operator side rail. Center section of bracket will
cover 300 Compact front rail supports (Figure 19).
Figure 19 – Locking PIn On 916 Roll Groover Adapter
Bracket
5. Insert retaining pin through holes, ensuring the pin is
securely engaged through both holes. Pin must be
properly inserted to lock bracket in place.
6. Attach 916 Groover to 916 Groover Adapter Bracket
extension rails as in Step 4 above (Figure 20).
7. Insert drive bar in chuck. Do not close chuck on
drive bar at this point.
8. Attach open end of drive bar to drive post on rear of
916 Groover, making sure set screws in drive bar
head are securely tightened onto the flats of 916
drive post.
9. Center drive bar in chuck and securely hammer
the jaws closed.
10. Turn machine control knob to desired position and
operate 916 Groover.
WARNING
Read and understand the Operator’s Manual from
the 916 Roll Groover before grooving pipe.
WARNING
NOTE! Before transporting the 300 Compact using the
No. 250 Stand, the 916 Roll Groover and 916
Roll Groover Adapter Bracket MUST be disassembled and removed from the machine. If left
intact, these items will not allow the No. 250
Stand to lock in the folded position.
Figure 20 – Model 916 Roll Groover and Adapter
Bracket Mounted To 300 Compact
Accessories
WARNING
Only the following RIDGID products have been
designed to function with the 300 Compact
Threading Machine. Other accessories designed
for use with other tools may become hazardous
when used on this Threading Machine. To
prevent serious injury, use only the accessories
listed below.
Accessories For Threading Machine
Pipe
Capacity
1
/8″ – 2″
1
/8″ – 2″
1
/4″ – 2″
1
/8″ – 3/4″
1″ – 2″
1
/8″ – 2″
1
/8″ – 2″
–
–
Stands:
No. 250 Folding Stand
No. 200 Wheel And Cabinet Stand
No. 150 Wheel And Tray Stand
No. 100 Leg And Tray Stand
Pipe Support Stands
VJ99; VJ98; RJ99
No. 819 Nipple Chuck (Right Hand Only)
Pipe Adapters.............1/8″ through 11/2″
Stud Adapters.............1/4″ through 2″ UNC
1
/4″ through 11/2″ UNF
Jaw Inserts For Coated Pipe
NOTE! See Ridge Tool Catalog for complete list of pipe
supports, thread cutting oil and dies.
Maintenance Instructions
WARNING
Make sure machine is unplugged from power
source before performing maintenance or making
any adjustment.
Lubrication
Proper lubrication is essential to trouble-free operation and
long life of Threading Machine.
Two grease fittings are provided on top of machine housing to allow for oiling of the front and rear bearings (Figure
21). Bearings should be greased periodically, depending
on usage of machine.
Figure 21 – Lubricate Bearings
Oil System Maintenance
To help assure proper operation of threading machine,
keep oil system clean, as follows:
1. Replace thread cutting oil when it becomes dirty or
contaminated. To drain the oil, position a container
under drain plug and remove plug.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 15
Grease
Fitting
Model
811A NPT
815A NPT
842 NPT
816 NPT
817 NPT
811A BSPT
815A BSPT
531 Bolt
532 Bolt
Die Heads:
Bolt
Capacity
1
/4″ – 2″
1
/4″ – 2″
–
–
1
/4″ – 2″
1
/4″ – 2″
1
/4″ – 2″
1
/4″ – 1″
11/8″ – 2″
Dies
Universal
Universal
Universal
Universal
Universal
Universal
Universal
500B
500B
Opening
Quick
Self
Quick
TAP
TAP
Quick
Self
Quick
Quick
Operation
R.H.
R.H.
L.H.
R.H.
R.H.
R.H.
R.H.
R.H./L.H.
R.H./L.H.
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
16
2. Keep oil filter screen to assure proper flow or clean oil
to work. Oil filter screen is located in the bottom of oil
reservoir. To clean filter screen, loosen the screw that
secures filter to base and pull filter from oil line.
Clean filter screen in solvent and blow out with compressed air if available. Do not operate machine with
oil filter screen removed.
NOTE! RIDGID Thread Cutting Oil produces high qual-
ity threads and maximizes die life. For information concerning its use and handling, refer to
the labels on the oil containers. Disposal of the
oil should be in accordance with government
regulations.
Jaw Insert Replacement
NOTE! When teeth on jaw inserts become worn and fail
to hold pipe or rod during operation, replace
entire set of jaw inserts. Clean teeth of jaw
inserts daily with wire brush.
1. Place screwdriver in insert slot and turn 90 degrees
in either direction.
2. Place insert sideways on locking pin and press
down as far as possible.
3. Hold insert down firmly with screwdriver, turn as
so teeth face up.
Figure 22 – Jaw Insert Replacement
Replacing Brushes In Motor
NOTE! Check motor brushes every 6 months. Replace
when worn to less than 1/2″.
1. Unplug machine from power source.
2. Fully loosen four screws that hold motor housing
cover in place and remove motor housing cover
(Figure 23).
Figure 23 – Loosen And Remove Motor Cover Screws
3. Loosen carbon brush holders and remove carbon
brushes.
4. Install new brushes.
5. Reinstall brush holders and motor housing cover.
WARNING
Do not operate the threading machine with cover
off. Always replace cover immediately after installing brushes.
Machine Storage
WARNING
Motor-driven equipment must be kept indoors or
well covered in rainy weather. Store the machine in
a locked area that is out of reach of children and
people unfamiliar with threading machines. This
machine can cause serious injury in the hands of
untrained users.
To Remove
To Replace
Screw Driver
Insert
Locking
Pin
Teeth
PRESS
DOWN
➔
Motor
Cover
Screws
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company 17
Service and Repair
WARNING
Service and repair work on this Threading Machine
must be performed by qualified repair personnel.
Machine should be taken to a RIDGID Independent
Authorized Service Center or returned to the factory. All repairs made by Ridge service facilities
are warranted against defects in material and
workmanship.
WARNING
When servicing this machine, only identical
replacement parts should be used. Failure to
follow these instructions may create a risk of
electrical shock or other serious injury.
If you have any questions regarding the service or repair
of this machine, call or write to:
Ridge Tool Company
Technical Service Department
400 Clark Street
Elyria, Ohio 44035-6001
Tel: (800) 519-3456
E-Mail: TechServices@ridgid.com
For name and address of your nearest Independent
Authorized Service Center, contact the Ridge Tool
Company at (800) 519-3456 or http://www.ridgid.com
Wiring Diagrams
Neutral
Ground
Blue
White
Red
Yellow
Green
Black
White
115/230V Far East
Green
Neutral
Earth
Foot Switch
Suppressor
230V 25-60 Hz
300 Compact Pipe and Bolt Threading Machine
Ridge Tool Company
18
Neutral
Earth
Blue
Brown
Yel-Green
Foot Switch
Blue
Brown
Yel-Green
Blue
White
Red
Yellow
Yel-Green
Black
Black
Suppressor
115V 25-60 Hz
Wiring Diagrams continued
115V Domestic
Blue
White
Red
Yellow
Black
Green/Yellow
White
White
White
Machine Housing
Black
Black
REV.
FOR.
OFF
Machine à fileter pour tuyaux et boulons modèle 300 Compact
Inscrivez ci-dessous et conservez le numéro de série qui apparaît sur la plaque signalétique de la machine.
N° de
Série
Machine à fileter pour
tuyaux et boulons
modèle 300 Compact
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