ESCO Tool Millhog Series, Wart Millhog Operating Instructions Manual

Operating Instructions

Millhog Series – Contour “Wart” Millhog

ESCO TOOL – HOLLISTON, MA – USA
MILLHOG SERIES: CONTOUR WART MILLHOG
90 PSI (6.2 BAR) INLET PRESSURE
DISCONNECT AIR SUPPLY BEFORE SERVICING

Understand all instructions before using

ESCO Tool Guarantee

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

Guarantee: The manufacturer guarantees its products to be free from defects in material
or workmanship for a period of one year from date of shipment from its factory. Said
guarantee will not apply if equipment is used in conditions of service for which it is not
recommended. The manufacturer is not responsible for damage to its products through
improper use, physical damage, poor operating practice, or normal wear.

If any device is found unsatisfactory under the guarantee, the buyer must notify ESCO
Tool in writing and after receipt of shipping instructions, buyer must return it directly to
ESCO Tool, 75 October Hill Rd. Holliston, Massachusetts 01746, USA, shipping charges
prepaid. Such equipment will be replaced or put in satisfactory operating condition, free of
all charges except transportation. The correction of any factory defect by repair or
replacement by the manufacturer shall constitute fulfillment of all obligations to the
purchaser. Manufacturer's guarantee is void if unauthorized repairs are made to its
products.

Manufacturer shall not be liable for consequential damage in case of failure to meet the
conditions of any Guarantee or Shipping Schedule, nor will claims for labor, loss of profit,
repairs, or other expenses incidental to replacement be allowed.

No other representations, guarantees or warranties, expressed or implied, are made by the
manufacturer in connection with the manufacture and sale of its equipment.

Hold Harmless Agreement

Customer agrees to defend, indemnify and hold ESCO Tool, its owners, agents, officers, and/or

employees free and harmless from and against any and all claims, liabilities, losses, costs and
out of pocket expenses (including attorneys fees) arising out of, or in connection with the ESCO
Tool equipment, its use or transportation, or out of operations conducted by customer, its agents,
employees, contractors, representatives, guests or invitees, including, but not limited to, active
and/or passive negligence.

Table of Contents

1. Instruction for putting into use

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

a. Unpacking
b. Air supply
c. Illustrated description of function
d. Limitation on ambient conditions
e. List of contents

2. Safety precautions
a. Precautions and use of personal protective equipment, eye protection
b. Special safety precautions, pinch points
c. Explanation of symbols
d. Disclaimer
e. Operating ergonomics

3. Operating instructions
a. Identification of operating controls and their use
b. Selection of proper tooling
c. Installation of proper tooling
d. Mounting the tool to the work
e. Air connection
f. Operation of tool
g. Tool limits

4. Maintenance & servicing
a. Regular cleaning and lubrication
b. User service
c. Servicing by manufacturer or agent, address

5. Clamp rib and pad selector chart

6. Parts list and drawings
a. Gear assembly
b. Air motor assembly
c. 1" mandrel kit assembly
d. Cutting blades
e. Air hose

7. MSDS for Marvel Air Tool Oil

a. Marvel Air Tool Oil
b. Tool steel cutting blades

1. Instruction for putting into use.
a. Unpacking.

1. Use caution when handling the tool, cutting blades are sharp.
Typically they are protected, however, exposed blades can cause injury.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

2. Clean any excess oil, grease or rust preventive from the surface of the
tool.
b. Air supply.

1. Recommended air pressure, 90 psi (6.2 bar).

2. Recommended air volume, 40 cfm (1133 lt/min.).

3. Clean, moisture free air is essential for trouble free operation.

4. Oil laden operating air should be used. Use a light weight air tool
motor oil (s.a.e.10).

5. A hose whip with filter and lubricator is provided with each tool. Be
sure air filter is clean and lubricator is full before use. For lubricator
adjustment instructions see 4a.
c. Illustrated description of function.

1. Instruction for putting into use, continued.
d. Limitation on ambient conditions.

1. In damp, moist or humid air, extra precaution must be taken in order to
provide the tool with moisture free, oil laden air.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

2. In temperatures below 32 degrees Fahrenheit (0 Celsius) a lubricant
with antifreeze, such as Marvel Air-Tool Oil , must be used.
e. List of contents.

1. Kit contains:
Motor and gear drive
Feed mechanism
Draw rod and wrench assembly
One or more clamp rib sets
One or more clamp pad set
One or more cutterheads
Hose, 1/2” with filter, lubricator and quick connect couplers
Allen wrench set
Carrying case

2. Safety precautions.
a. Precautions and use of personal protective equipment, eye protection.

1. Power tools are not insulated for coming into contact with electric
power sources.

2. Tool must not be used in an explosive atmosphere.

3. Do not use tool in a manner other than stated. Use other than stated in
the instructions is forbidden.

4. Use valved, quick connect couplers to avoid whipping compressed
air hose.

5. Use care regarding the drawing in or trapping long hair, loose
clothing, etc.

6. Cover all exposed skin before operating. Cutting blades are sharp and produce
hot chips. Both can cause injury.

7. Do not connect air until tool is securely fastened to the inside diameter
of a pipe or tube.

8. Use caution when handling, disconnect air before removing from work,
changing blades, performing maintenance or breaking down.

9. Personal protective garments should include but not be limited to.
Safety glasses
Work gloves
Work boots, or shoes
Protective clothing
Ear protection when operator is exposed to long periods of use.

2. Safety precautions, continued.
a. Precautions and use of personal protective equipment, eye protection.

10. Have all nearby persons wear safety glasses with side shields.
b. Special safety precautions, pinch points, cont.

1. Chips can be hot and sharp. Be careful when clearing from tool.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

2. Moving and stationary parts can pinch or cause serious injury. Pay extra
attention to rotating cutting blades as they can not be adequately guarded.

3. During use, machinery may separate, lurch or fall.
c. Explanation of symbols.

Caution (refer to accompanying documents).

Safety glasses must be worn.

Protective gloves, cutting blades and chips can be hot and sharp.

Work boots, or shoes.

Protective clothing.

Ear protection.

Pinch points.

2. Safety precautions, continued.
d. Disclaimer.

1. If the equipment is used in a manner not specified by ESCO Tool, the
protection provided by the equipment may be impaired.
e. Operating ergonomics.

1. Tool must be mounted at a reasonable working height.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

2. Tool may be used in any orientation.

3. Operator must be in a position not to be injured as the machinery
may separate, lurch or fall. Operator must have both feet on a stable
platform. Reaching or leaning is not acceptable operating ergonomics.

3. Operating instructions.
a. Identification of operating controls and their use.

1. Feed wrench.
a. Axially moves gear assembly on mandrel.

2. Draw rod nut.
a. Activates draw rod and actuator.

3. Draw rod.
a. Connects the actuator and draw rod nut.
b. Turning draw rod nut clockwise pulls actuator towards
mandrel and expands clamp ribs and pads.
c. Turning draw rod nut counter-clockwise pushes actuator away
from mandrel and relaxes clamp ribs and pads.

4. Draw rod stop collar.
a. Prevents draw rod, actuator and clamp rib and pads from
becoming separated from mandrel.

5. Draw rod nut and finger knob.
a. Turning draw rod nut and finger knob clockwise pulls actuator towards
mandrel and expands clamp ribs and pads.

6. Contour housing.
a. Contains the cutterhead

7. Cutterhead.
a. Rotates and holds the tool post.

8. Tool post.
a. Locates cutting blade.

9. Cutting blade.
a. Purpose: to machine end preparations on tube or pipe.
b. Consumable item, available in many sizes and configurations.

10. Blade lock.
a. Secures the cutting blade to tool post.

11. Actuator.
a. Holds and aligns the clamp ribs and pads with mandrel.

3. Operating instructions, continued
a. Identification of operating controls and their use.

12. Clamp rib
a. Secures tool to tube or pipe inside diameter.
b. Come in sets of three.
c. Available in many sizes, see accompanying clamp rib chart.

13. Mandrel.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

a. Provides torque acceptance for entire tool.
b. Allows axial movement of tool.
c. Provides point of rotation for cutterhead.

14. Throttle lever.
a. Activates the cutterhead.
b. Requires deliberate action by the operator to activate the cutterhead.
c. Actuating lever starts tool.
d. Release of lever stops tool.

15. Nipple air inlet.
a. Accepts valved quick connect coupler for connecting air supply.
b. Always disconnect air supply before installing, changing or
securing blades, adjusting, moving, or breaking down.

16. Air motor.
a. Provides power to gear head.

17. Gear assembly.
a. Rotates cutterhead.
b. Axially moves on mandrel.
b. Selection of proper tooling.

1. Clamp rib selection.
a. Measure inside diameter of tube or pipe. Or using the outside
diameter and minimum wall thickness, calculate the inside
diameter.
b. Using the inside diameter and the accompanying clamp rib chart
select the proper clamp rib / pad set(s).
c. Please note clamp pads attach to clamp ribs. Clamp ribs can be
used without clamp pads.

2. Cuttterhead selection.
a. Measure the outside diameter of the tube or pipe.
b. Select a cutterhead that has the same outside diameter as the tube
or pipe being end prepped.
c. Be sure the cutterhead rise matches the outside diameter of the tube or
pipe it is being matched to.

3. Operating instructions continued.
b. Selection of proper tooling.

3. Cutting blade selection.
a. Measure the wall thickness of the tube or pipe.
b. Select a blade that is wider than the wall thickness.
c. Standard width is 1/2”.
d. Cutting blade configuration should be matched to your welding
specification.
c. Installation of proper tooling.

1. Clamp rib installation.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

a. Remove stop collar (H-56A), draw rod wrench (H-54) and pull
draw rod assembly from mandrel (H-21).
b. Slide clamp ribs over the draw rod (H-51) with the slotted end
of the clamp rib towards the actuator.
c. Insert the clamp rib slots into the slots on the actuator.
d. Inspect springs, replace if stretched or damaged.
e. There are two sets of clamp springs per set of clamp ribs.
f. Reassemble, insert draw rod assembly into mandrel and install
the draw rod wrench and stop collar.

2. Cutterhead removal and installation.
a. Remove stop collar (H-56A), draw rod wrench (H-54A) and feed
stop (H-57A). Pull draw rod assembly from mandrel (H-21).
b. Using feed wrench, feed mandrel out of tool.
c. Remove (6) contour housing fastening screws (H-506).
d. remove (4) contour housing screws (H-505).
e. On opposite side of housing from where the (H-506) screws where
removed, thread (4) (H-506)screws into tapped holes. Evenly tighten these
screws to separate the (2) piece housing.
f. Using a soft hammer, tap cutterhead (H-511) to remove from cutterhead
drive shaft (H-514).
g. Select the cutterhead and align cutterhead (H-511) with cutterehad drive
shaft (H-514) keys (H-20) and tap inot place using a soft hammer.
h. Reinstall the contour housing on the gear assembly.

1. Attach one half of the contour housing to the gear assembly
housing (H-500) with (2) (H-505) screws.

2. Align the (4) dowl pins (H-510) with the mating holes on
oposite half of contour housing.

3. Be sure cam follower (H-504) seats evenly in contour housing
groove.

4. Insert and tighten (6) (H-506) screws evenly until the two halfs
of the contour housing meet.

3. Operating instructions continued.
c. Installation of proper tooling.

2. Cutterhead removal and installation.
h. Reinstall the contour housing on the gear assembly.

5. Attach second half of the contour housing to the gear assembly
housing (H-500) with (2) (H-505) screws.
i. Reinstall the mandrel, align key way with key (H-25) in the torque
acceptor (H-38).
j. Insert draw rod assembly into mandrel and install the feed stop,
draw rod wrench and stop collar.

3. Cutting blade removal and installation.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

a. Loosen blade lock screw(s) (H-23), do not remove. If more than
one blade lock screw has to loosened they should be loosened
evenly.
b. Cutting blade must be slid to the outside of the cutterhead for
removal. .
c. Insert new cutting blade from the outside of the cutterhead and
align so that the blade fully covers the tube or pipe wall.
d. Be sure to tighten all blade lock screws.
d. Mounting the tool to the work.

1. Using the feed wrench extend the mandrel all the way forward (this
moves clamp ribs away from cutterhead.

2. Retract the the mandrel two turns of the feed wrench.

3. Insert the clamp rib portion of the tool into the end of tube or pipe.

4. Align contour housing and gear assembly with the tube to match the desired
high and low end prep configuration.

5. While positioning the cutting blade away, at least 1/4” from the work,
tighten the draw rod nut.

6. Be sure cutterhead can rotate freely, without coming into contact
with the tube or pipe, when first starting tool.
e. Air connection.

1. Use the hose supplied with the tool.

2. This hose has a valved quick connect coupler which will hold back all
air that is in the supply hose.
a. This feature allows the air supply to be safely removed from the
tool at any time.

3. Connect the air supply.
f. Operation of tool.

1. Engage the throttle lever, this will activate the tool.

2. Using the feed wrench advance the cutting blade towards the work.

3. Use a steady constant feed creating a continuous chip.

3. Operating instructions continued.
f. Operation of tool

3. Use a steady constant feed creating a continuous chip
a. Using a constant feed allows the heat generated by the cutting
action to be removed by the chip. Heat build up is a primary
failure mode for cutting tools.
. b. Engaging a rotating cutting blade with the work surface without
feed (rubbing), creates excessive heat build up.

4. When the desired end prep is accomplished, quickly reverse the feed
wrench by reversing the directional pawl, and retract the cutting blade
from the work.

5. Release the throttle lever, this will stop the tool.

6. Disconnect the air supply.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

7. Release the clamp wrench and remove the tool from the work.
g. Tool limits.

1. Size limits.
a. Minimum inside diameter is 1-1/4” with standard mandrel.

1. Minimum inside diameter is 1” with optional mandrel.
b. Maximum outside diameter is 2-5/8”.
c. Maximum wall thickness, 1/2” with standard tooling.
d. Extremely thin walls may require special tooling to prevent.
deformation of diameter.

2. Material limits.
a. Difficult materials may require the following to maximize blade life.

1. Lubrication such cutting oils, soluble oils, soapy water,
plain water, etc.

2. Slow the speed of air motor, using a valve on the air supply.

3. Multiple cutting blades to balance the tool.

4. Vary feed rate, often times difficult materials respond to
a heavy feed.

4. Maintenance and servicing.
a. Regular cleaning and lubrication.

1. Hose whip, filter and lubricator.
a. Inspect filter element by removing nut from end of filter
assembly.
b. If the filter is dirty or plugged replace it using filter repair kit
c. Remove filler plug from lubricator and be sure the adjusting
screw is set half way between open and closed.
d. Fill lubricator, use a light weight air tool motor oil (s.a.e. 10).

4. Maintenance and servicing, continued.
a. Regular cleaning and lubrication.

2. Gear housing grease.
a. There is no grease fitting on rental tools. This is because of the
tendency to over grease. Excess grease can back up into the air
motor and cause failure.
b. A single pump from a grease gun after every two hundred hours
of use is sufficient for all tools equipped with a grease fitting.
c. Use grease NLGI # 2.

3. Lubrication for storage.
a. Before putting the tool away, fill air inlet with a liberal amount
of air tool oil and actuate motor momentarily. This will distribute
oil to internal motor parts, preventing rust build up.
b. Wipe tool down using soft cloth removing all dirt, grease, oil
and chips.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

c. Lightly coat tool with rust preventive.
b. User service.

1. A qualified air tool technician can provide all service for this machine.
a. Factory service or assistance is available, contact us at the numbers
below.
b. Complete drawings and parts lists are provided in section six.

1. No special tools are required to perform complete
service.
c. Servicing by manufacturer or agent.

1. Factory service, return the tool to the Factory address listed below.

2. Agent service, If applicable return tool to the Agent listed below.
a. If unsure of Agent contact the factory.

5. Clamp rib and pad selector chart.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

6. Parts list and drawings
a. Gear assembly.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

PART #

DESCRIPTION

PART #

DESCRIPTION

H-01

CLAMP RIBS (1.250" - 1.600")

H-34

REAR BEARING RACE

H-02

CLAMP RIBS (1.525" - 1.925")

H-35

REAR TAPERED ROLLER

H-03

CLAMP RIBS (1.850" - 2.250")

H-36

LOCK WASHER

H-04

CLAMP RIBS (2.175" - 2.575")

H-37

LOCK NUT

H-05

CLAMP PADS (2.500" - 2.900")

H-38

TORQUE ACCEPTER

H-06

CLAMP PADS (2.825" - 3.225")

H-39

FEED WRENCH

H-07

CLAMP PADS (3.150" - 3.550")

H-40

FEED WRENCH SCREWS

H-08

CLAMP PADS (3.475" - 3.875")

H-41

DRIVE GEAR

H-09

CLAMP PADS (3.800" - 4.200")

H-42

DRIVE GEAR BEARING

H-10

CLAMP RIB SCREW

H-43

BEARING SPACER

H-11

ACTUATOR ROLL PIN

H-44

DRIVE GEAR BEARING

H-12

ACTUATOR

H-45

DRIVE GEAR SNAP RING

H-13

ROLL PIN

H-46

HOUSING SNAP RING

H-14A

CLAMP RIB SPRING H0

H-47

DRIVE KEY

H-14B

CLAMP RIB SPRING H1-H4

H-48

SHEAR COUPLER

H-15

CUTTERHEAD SEAL

H-49

FEED KNOB BALLS (20 REQ'D)

H-16

CUTTERHEAD MOUNTING SCREW

H-50

BALL RETAINER SCREW

H-18

CUTTERHEAD BEARING

H-51

DRAW ROD

H-514

DRIVE SHAFT

H-52

DRAW ROD NUT SNAP RING

H-20

DRIVE GEAR KEY

H-53A

DRAW ROD NUT & FINGER KNOB

H-21

MANDREL (SPECIFY LENGTH)

H-54A

WRENCH HD DRAW ROD

H-22A

9/16" BLADE LOCK

H-55

DRAW ROD NUT SNAP RING

H-22B

5/8" BLADE LOCK

H-56A

DRAW ROD STOP COLLAR

H-22C

3/4" BLADE LOCK

H-56B

SOCKET HEAD SCREW

H-23

COMBINATION SCREW

H-57A

FEED STOP COLLAR

H-24

TORQUE ACCEPTER KEY SCREW

H-57B

SET SCREW

H-25

TORQUE ACCEPTER KEY

H-58

MOTOR ADAPTER PLATE

H-26

TORQUE ACCEPTER SCREWS

H-59

MOTOR ADAPTER SCREWS

H-27

"O" RING

CH-20

2-5/8" CUTTERHEAD

H-28

FEED KNOB

CH-21

3" CUTTERHEAD

H-29

DRIVE SHAFT "O" RING

CH-22

3-1/2" CUTTERHEAD

H-30

FRONT TAPERED ROLLER BEARING

CH-23

4" CUTTERHEAD

H-31

FRONT BEARING RACE

CH-24

4-1/2" CUTTERHEAD

H-32
H-500
H-501
H-504
H-505
H-506
H-506A

DRIVEN GEAR
GEAR HOUSING
DRIVE KEY (1/8” x ¾”)
CAM FOLLOWER

ALLEN HEAD CAP SCREW (1/4 X 20 X 5/8”)

ALLEN HEAD CAP SCREW(1/4 X 20 X 2”)
LOCK WASHER

H-70
H-510
H-511

H-512

H-513

H-514

AIR MOTOR COMPLETE
DOWEL PIN (.187” X .750”)
CUTTERHEAD (SPECIFY OFFSET OR
TUBE AND HEADER SIZES)
RETAINER RING
HOUSING (2 PIECES)
CUTTERHEAD DRIVE SHAFT

Millhog Series – Contour “Wart” Millhog

CONTOUR "WART" MILLHOG GEAR HEAD ASSEMBLY

6. Parts list and drawings
a. Gear assembly.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

6. Parts list and drawings
b. air motor.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

PART #

DESCRIPTION

PART #

DESCRIPTION

18-01

GREASE FITTING

18-29
18-30

EXHAUST DEFLECTOR
GASKET (OLD STYLE)

18-02A

GEAR HOUSING

18-30A

GASKET

18-03

BEARING

18-31

"O" RING

18-04

GEAR SPIDER

18-32

REAR PLATE

18-05

PIN

18-33

CAP SCREW

18-06

BEARING

18-34

LOCK WASHER

18-07

GEAR

18-35

CAP SCREW

18-08

BEARING

18-36

LOCK WASHER

18-09

RETAINER RING

18-40

SEAL

18-10

SPACER

18-40A

WASHER

18-11

GEAR SPIDER

18-41

LOCK WASHER

18-12

BEARING

18-42

BUTTON HEAD SCREW

18-13

BEARING HOUSING

18-43

AIR VALVE

18-14

GASKET

18-44

"O" RING

18-15

BEARING

18-45

SPRING

18-16

FRONT END PLATE

18-46

LOCK WASHER

18-17

PIN

18-46A

LOCK WASHER

18-18

BEARING

18-47

CAP SCREW

18-19

GEAR

18-47A

CAP SCREW

18-20

CYLINDER

18-48

THROTTLE LEVER

18-21

ALIGNMENT PIN

18-49

COUPLER

18-22

ROTOR

18-50

SCREEN

18-23

ROTOR BLADES (5 PER SET)

18-51

ROLL PIN

18-24

REAR END PLATE

18-52

OIL PLUG

18-25

BEARING

18-52A

OIL PLUG

18-26

RETAINER RING

18-53

THROTTLE HANDLE

18-27

GASKET

18-53A

THROTTLE HANDLE COMPLETE

18-28

AIR MOTOR HOUSING

18-54

COMPLETE AIRMOTOR

H-59

MOTOR ADAPTER SCREW

Millhog Series – Contour “Wart” Millhog

"WART" MILLHOG

AIR MOTOR PARTS LIST

6. Parts list and drawings

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

b. air motor.

6. Parts list and drawings
c. 1” mandrel.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Millhog Series – Contour “Wart” Millhog

PART #

DESCRIPTION

PART #

DESCRIPTION

H-00

CLAMP RIB SET (1.000" - 1.250")

H-55

DRAW ROD NUT SNAP RING

H-11

ACTUATOR ROLL PIN

H-56A

DRAW ROD STOP COLLAR

H-12A

ACTUATOR, 1"

H-56B

SOCKET HEAD SCREW

H-14A

CLAMP RIB SPRING H-00

H-57A

FEED STOP COLLAR

H-51

DRAW ROD & STOP COLLAR

H-57B

SET SCREW

H-53A

DRAW ROD NUT & FINGER KNOB

H-220

MANDREL, 1" W/ FEED STOP

H-54A

WRENCH, H.D. DRAW ROD

H-221

MANDREL KIT COMPLETE, 1"

6. Parts list and drawings
c. 1” mandrel.

Operating Instructions

"WART" MILLHOG

1" MANDREL KIT

PARTS LIST

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

6. Parts list and drawings
d. Blades.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

MBB-1

BLADE 1/2" BEVEL TIN

MBB-2

BLADE 3/4" BEVEL TIN

MBB-3

BLADE 1" BEVEL TIN

MBBP-1

1/2" 37-1/2 DEG 1/4" PEEL BACK

MBBP-2

3/4" 37-1/2 DEG 1/4" PEEL BACK

MBBP-3

1" 37-1/2 DEG 1/4" PEEL BACK

MCB-1

BLADE,CUSTOM 1/2"CNTR BORE TiN

MCB-2

BLADE,CUSTOM 3/4"CNTR BORE TiN

MCB-3

BLADE,CUSTOM 1"CNTR BORE TiN

MCB10L-1

1/2" 10 DEG BORING >1-3/4"ID

MCB10L-2

3/4" 10 DEG BORING >1-3/4"ID

MCB10L-3

1" 10 DEG BORING > 1-3/4" ID

MCB10S-1

1/2" 10 DEG BORING <1-3/4 ID

MCB10S-2

3/4" 10 DEG BORING <1-3/4 ID

MCB10S-3

1" 10 DEG BORING < 1-3/4" ID

MCBSL-1

1/2" WIDE 3/8"STRAIGHT BORE 18 DEG TAPER

MCBSL-2

3/4" WIDE 3/8"STRAIGHT BORE 18 DEG TAPER

MCBSL-3

1" WIDE 3/8"STRAIGHT BORE 18 DEG TAPER

MCBSS-1

1/2" WIDE 3/8"STRAIGHT BORE 18 DEG TAPER

MCBSS-2

3/4" WIDE 3/8"STRAIGHT BORE 18 DEG TAPER

MCBSS-3

1" WIDE 3/8"STRAIGHT BORE 18 DEG TAPER

MJB-1

1/2" "J" BEVEL 22 DEG+3/16 RADIUS

MJB-2

3/4" "J" BEVEL 22 DEG+3/16 RADIUS

MJB-3

1" "J" BEVEL 22 DEG+3/16 RADIUS

MLB-1

BLADE 1/2" LAND TIN

MLB-2

BLADE 3/4" LAND TIN

MLB-3

BLADE 1" LAND TIN

MLRB-1

1/2" FACING BLADE W/ OD RADIUS

MLRB-2

3/4" FACING BLADE W/ OD RADIUS

MLRB-3

1" FACING BLADE W/ OD RADIUS

MRBB-1

1/2"37-1/2 DEGREE BORING BLADE

MRBB-2

3/4"37-1/2 DEGREE BORING BLADE

MRBB-3

1" 37-1/2 DEGREE BORING BLADE

MTSR-1

BLADE, 1/2" TUBE STUB REMOVAL

MTSR-2

BLADE, 3/4" TUBE STUB REMOVAL

MTSR-3

BLADE, 1" TUBE STUB REMOVAL

MTSS-1

BLADE, 1/2" TUBE SEAT

MTSS-2

BLADE, 3/4" TUBE SEAT

MTSS-3

BLADE, 1" TUBE SEAT

Millhog Series – Contour “Wart” Millhog

6. Parts list and drawings
d. Blades.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

6. Parts list and drawings
e. Air hose.

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Millhog Series – Contour “Wart” Millhog

PART #

DESCRIPTION

PART #

DESCRIPTION

AHW-300

NIPPLE, 3/8" x 3/8"

AHG-309

FILLER PLUG "O" RING

AHW-301

COUPLER

AHG-310

OIL ADJUSTMENT VALVE ASSEMBLY

AHW-302

HOSE BARB, 1/2" x 3/8"

AHG-311

VALVE GASKET

AHW-303

HOSE, 6'

AHG-312

SIGHT DISK AND SEAL

AHW-304

SEAL

AHG-313

SIGHT DISK LOCK NUT

AHW-305

CHICAGO FITTING, 1/2"

AHW-308A

FILTER REPAIR KIT

AHW-306

SAFETY PIN

AHW-309

HOSE BARB, 1/2" x 1/2"

AHW-307A

COMPLETE FILTER & LUBRICATOR
ASSY.

AH-201

COMP. HOSE ASSEMBLY
AHG-308

FILLER PLUG

6. Parts list and drawings
e. Air hose.

Operating Instructions

HOSE ASSEMBLY

PARTS LIST

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com

Operating Instructions

Millhog Series – Contour “Wart” Millhog

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road, Holliston, MA 01746
Tel [phone], Fax [phone]
e-mail: [e-mail] Web site www.escotool.com