ESCO Tool MILLHOG, C-HOG MILLHOG Series Manual

Operating Instructions Revision: CHO-001

Factory: Agent:
ESCO Tool Company, a Unit of ESCO Technologies, Inc.
75 October Hill Road Ste A, Holliston, MA 01746 USA
Tel [phone] | Fax [phone]
Email: [e-mail] | Website: www.escotool.com

Millhog Series - “C-HOG” Millhog

MILLHOG SERIES: C-HOG MILLHOG

- (includes pneumatic & elect r i c m o tors)

- 90 PSI (6.2 BAR) INLET PRESSURE

- 120/230V AC FOR ELECTRIC MOTO R S

DISCONNECT AIR SUPPLY BEFORE SERVICING

UNDERSTAND ALL INSTRUCTIONS BEFORE USING

ESCO Tool Company, a Unit of ESCO Technologies, Inc. 1
Holliston, MA - USA | Tel [phone]

Operating Instructions Revision: CHO-001
Millhog Series - “C-HOG” Millhog

ESCO Tool Guarantee

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
Road, Holliston, MA 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
attorney’s 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.

ESCO Tool Company, a Unit of ESCO Technologies, Inc. 2
Holliston, MA - USA | Tel [phone]

Operating Instructions Revision: CHO-001
Millhog Series - “C-HOG” Millhog

Contents

INSTRUCTION FOR PUTTING INTO USE ................................................................................................................................... 4

UNPACKING ................................................................................................................................................................................... 4

AIR SUPPLY .................................................................................................................................................................................... 4

ILLUSTRATED DESCRIPTION OF FUNCTION ............................................................................................................................................. 4

LIMITATION ON AMBIENT CONDITIONS ................................................................................................................................................ 4

LIST OF CONTENTS ........................................................................................................................................................................... 5

SAFETY PRECAUTIONS ............................................................................................................................................................ 5

PRECAUTIONS AND USE OF PERSONAL PROTECTIVE EQUIPMENT, EYE PROTECTION ........................................................................................ 5

SPECIAL SAFETY PRECAUTIONS, PINCH POINTS ....................................................................................................................................... 5

EXPLANATION OF SYMBOLS ............................................................................................................................................................... 6

DISCLAIMER ................................................................................................................................................................................... 6

OPERATING ERGONOMICS ................................................................................................................................................................ 6

OPERATING INSTRUCTIONS ................................................................................................................................................... 7

IDENTIFICATION OF OPERATING CONTROLS AND THEIR USE ...................................................................................................................... 7

SELECTION OF PROPER TOOLING ......................................................................................................................................................... 7

Fixed saddle ........................................................................................................................................................................... 7

Cutterhead selection .............................................................................................................................................................. 7

Cutting blade selection .......................................................................................................................................................... 7

INSTALLATION OF PROPER TOOLING .................................................................................................................................................... 7

Fixed saddle installation ........................................................................................................................................................ 7

Cutterhead removal and installation ..................................................................................................................................... 7

Cutting blade removal and installation ................................................................................................................................. 8

MOUNTING THE TOOL TO THE WORK .................................................................................................................................................. 8

AIR CONNECTION ............................................................................................................................................................................ 8

OPERATION OF TOOL ....................................................................................................................................................................... 8

TOOL LIMITS .................................................................................................................................................................................. 8

Size limits ............................................................................................................................................................................... 8

Material limits ....................................................................................................................................................................... 8

MAINTENANCE AND SERVICING ............................................................................................................................................. 9

REGULAR CLEANING AND LUBRICATION ................................................................................................................................................ 9

USER SERVICE ................................................................................................................................................................................. 9

SERVICING BY MANUFACTURER OR AGENT ............................................................................................................................................ 9

PARTS LIST AND DRAWINGS ................................................................................................................................................ 10

GEAR ASSEMBLY ........................................................................................................................................................................... 10

AIR MOTOR ................................................................................................................................................................................. 12

BLADES ....................................................................................................................................................................................... 14

AIR HOSE..................................................................................................................................................................................... 16

ESCO Tool Company, a Unit of ESCO Technologies, Inc. 3
Holliston, MA - USA | Tel [phone]

Operating Instructions Revision: CHO-001
Millhog Series - “C-HOG” Millhog

Instruction for putting into use

Unpacking

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

exposed blades can cause injury.

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

Air supply

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

2. Recommended air volume, 25 cfm (708 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.

Illustrated description of function

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.

2. In temperatures below 32 degrees Fahrenheit (0 Celsius) a lubricant with antifreeze, such as Marvel Air-

Tool Oil, must be used.

ESCO Tool Company, a Unit of ESCO Technologies, Inc. 4
Holliston, MA - USA | Tel [phone]

Operating Instructions Revision: CHO-001
Millhog Series - “C-HOG” Millhog

List of contents

Kit contains:

 Motor gear drive assembly
 Clamp wrench
 One or more adjustable saddles
 One fixed saddle
 One or more cutterheads
 Hose, 1/2” w/ filter
 Carrying case
 Allen wrench
 Operating instructions

Safety precautions

Precautions and use of personal protective equipment, eye protection

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

2. Use caution when handling the tool, cutting blades are sharp. Typically they are protected, however,

exposed blades can cause injury.

3. Personal protective equipment should include, but not be limited to:

 Safety glasses
 Work gloves
 Work boot, or shoes
 Long sleeve shirts
 Long pants
 Ear protection should be used when operator is exposed to long periods of use.

Special safety precautions, pinch points

1. Always disconnect air supply before installing or changing cutting blades, securing to pipe or tube,

adjusting, moving, or breaking machine down.

2. Do not modify or defeat safety devices
a. Never tie down throttle lever

3. Cutting blades are sharp and can cause serious injury, use caution when handling tool when blades are

installed

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

5. Moving and stationary parts can pinch or cause serious injury. Pay extra attention to rotating cutting

blades as they cannot be adequately guarded.

6. During use, machinery may separate, lurch or fall.

ESCO Tool Company, a Unit of ESCO Technologies, Inc. 5
Holliston, MA - USA | Tel [phone]