Carver Mini C Instruction Manual

CARVER
®
OPERATION, INSTALLATION AND MAINTENANCE MANUAL
TWO and FOUR POST MANUAL HYDRAULIC PRESSES
HEATED AND UNHEATED
IMPORTANT:
PLEASE READ CAREFULLY BEFORE INSTALLING OR OPERATING THIS EQUIPMENT
CARVER, INC.
1569 Morris Street, P.O. Box 544
Wabash, IN 46992-0544
PH: 260-563-7577 FAX: [phone]

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NOTE: Performance figures stated in this manual are based on a Standard Atmosphere of 59 degrees F. (15 degrees C.)
and 29.92" Hg (10,331 Kg/m) at sea level and using 50 Hz electrical current. All of these factors are important
considerations when selecting a hydraulic press. CARVER, INC. can advise you on proper selection and sizing of
systems for the operating environment at your location.
CARVER, INC. is committed to a continuing program of product improvement. Specifications, prices, appearance, and
dimensions described in this manual are subject to change without notice.
CARVER, INC. 1996
All Rights Reserved.
Part #: 1520.101 (CE ENGLISH) Rev. 05 Effective: 10/10/07

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TABLE OF CONTENTS
SECTION ONE INTRODUCTION ...........................................................................................................1-1
1.1 INTRODUCTION .........................................................................................................................1-1
1.2 ACCESSORIES.............................................................................................................................1-1
1.3 CUSTOMER SERVICE ................................................................................................................1-1
SECTION TWO SAFETY ..........................................................................................................................2-1
2.1 SAFETY CONSIDERATIONS .....................................................................................................2-1
2.2 GENERAL RESPONSIBILITY ....................................................................................................2-1
2.3 OPERATOR RESPONSIBILITY..................................................................................................2-2
2.4 MOLD SETTERS RESPONSIBILITY .........................................................................................2-4
2.5 MAINTENANCE RESPONSIBILITY..........................................................................................2-5
SECTION THREE INSTALLATION ............................................................................................................3-1
3.1 TWO POST PRESS DESCRIPTION............................................................................................3-1
3.2 FOUR POST PRESS DESCRIPTION...........................................................................................3-2
3.2 FOUR POST PRESS DESCRIPTION - CONT.............................................................................3-3
3.3 LAMINATING PRESS DESCRIPTION.......................................................................................3-4
3.4 INSTALLATION...........................................................................................................................3-4
3.5 SETTING UP.................................................................................................................................3-4
3.6 GAUGE INFORMATION.............................................................................................................3-5
3.7 RAM FORCE CALCULATION....................................................................................................3-5
3.8 FILLING THE OIL RESERVOIR.................................................................................................3-6
3.9 GASES OR DUST REMOVAL.....................................................................................................3-6
3.10 CONNECTING UTILITIES..........................................................................................................3-6
SECTION FOUR OPERATION...................................................................................................................4-1
4.1 OPERATOR SAFETY...................................................................................................................4-1
4.2 OPERATING THE HYDRAULIC PRESS ...................................................................................4-2
4.3 DAYLIGHT ADJUSTMENT........................................................................................................4-3
4.4 OPERATING PRESSES EQUIPPED WITH HEATED PLATENS.............................................4-5
4.5 LAMINATING PRESSES.............................................................................................................4-6
SECTION FIVE MAINTENANCE............................................................................................................5-1
5.1 TROUBLESHOOTING.................................................................................................................5-1
5.2 HYDRAULIC UNIT - AIR BLEED PROCEDURE .....................................................................5-2
5.3 ELECTRICAL ...............................................................................................................................5-3
5.4 MOLD SIZE VERSUS TONNAGE CHART................................................................................5-3
SECTION SIX HYDRAULIC OIL ..........................................................................................................6-1
SECTION SEVEN ACCESSORY EQUIPMENT..........................................................................................7-1
SECTION EIGHT CARVER, INC. SERVICES............................................................................................8-1
8.1 TECHNICAL ASSISTANCE........................................................................................................8-1
8.2 RETURNED MATERIAL POLICY..............................................................................................8-1

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SECTION NINE WARRANTY ..................................................................................................................9-2
9.1 WARRANTY RETURNS..............................................................................................................9-2
9.2 WARRANTY.................................................................................................................................9-2
SECTION TEN PICTOGRAM/TAG INFORMATION..........................................................................10-1
SECTION ELEVEN APPENDIX ...................................................................................................................11-1
Hydraulic Unit Drawings - 12 ton, 25 ton ..................................................................................................11-1
Hydraulic Unit - Section View (Typical)....................................................................................................11-1
Hydraulic Unit Drawing - 30 ton................................................................................................................11-1
Gauge Union Coupling Assembly - Typical...............................................................................................11-1
Hydraulic Cylinder - 30 ton........................................................................................................................11-1
Electrical Symbol Cross Reference ............................................................................................................11-1
Electrical Drawings ....................................................................................................................................11-1
Press Assembly Drawings ..........................................................................................................................11-1

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SECTION ONE INTRODUCTION
1.1 INTRODUCTION
We are pleased to supply CARVER Laboratory Equipment for your facility. CARVER presses are used in many
applications including research and development, specialized or low volume development ituations, and quality testing.
Thousands of presses are in use all over the world for numerous applications in the chemical, physical, biological, and
mechanical fields wherever pressing is required.
1.2 ACCESSORIES
CARVER, INC. offers a variety of standard accessories for your press including Heated Platens, Heating and Cooling,
or Cored Platens, Test Cylinder Outfits, French Pressure Cells, Swivel Bearing Plates, and Cage Equipment. All
original CARVER accessories are designed and manufactured by CARVER, INC. These accessories ensure precise
results for many applications, such as oil determination tests in food products, crushing analysis on cement core samples,
molding of plastic quality control specimens, and preparing KBr or tracer pellets, etc.
Each accessory allows you to tailor the hydraulic press to your specific application. In addition to these standard items,
we also manufacture custom presses and accessories for unique applications.
1.3 CUSTOMER SERVICE
The intent of this manual is to familiarize the operator and maintenance personnel with this equipment and help your
organization get the maximum service from your press. If you have any questions regarding installation, service, repair,
custom equipment or applications, please do not hesitate to call or write for the information required. Prices for presses,
accessories, or repair parts will be furnished promptly on request.
NOTICE: If you desire to use a press for an application other than that for which it was purchased, please
contact our factory to verify compatibility of the equipment with the new process. Misapplication of
the equipment could result in injury to the operator or damage to the equipment.

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SECTION TWO SAFETY
2.1 SAFETY CONSIDERATIONS
The terms NOTICE, CAUTION, WARNING, and DANGER have specific meanings in this manual.
ANOTICE is used to indicate a statement of company policy directly or indirectly related to the safety of personnel or
protection of property.
ACAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
A WARNING indicates a potentially hazardous situation which, if not avoided could result in death or serious injury.
ADANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
This word will be limited to the most serious situation(s).
The term IMPORTANT emphasizes areas where equipment damage could result, or provides additional information to
make a step or procedure easier to understand. Disregarding information marked. IMPORTANT would not be likely
to cause personal injury.
REPORTING A SAFETY DEFECT
NOTICE: If you believe that your equipment has a defect, which could cause injury, you should immediately
discontinue its use and inform CARVER, INC., at our address listed in this manual.
The principle factors, which can result in injury, are:
1. Failure to center the work over the ram in the platen area, resulting in eccentric loading, tilting, and possible
movement of the work piece, which can then become a projectile;
2. Failure to level the top head of the press after it has been repositioned, which can produce the same results as in
Number One, above;
3. Fracture of a specimen or part of the apparatus due to overload, resulting in flying fragments;
4. Occasional squirting of liquid from a pressed specimen;
5. Contact with hot plates or heated apparatus can produce severe burns.
2.2 GENERAL RESPONSIBILITY
NO MATTER WHO YOU ARE...
Press safety is important. Press owners, operators, mold setters, and maintenance personnel must realize that every day,
all day, safety is a vital aspect of their jobs.
If your main concern is productivity, remember this. Loss of production always follows an accident involving a press:
•loss of a skilled operator (temporarily or permanently)

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•breakdown of shop morale
•costly damage to press and/or tooling
•down time.
An effective press safety program is not only humanitarian, but is also economically sound.
Organize a safety committee or group, and hold regular meetings. Promote this group from the management level.
Through this group, the safety program can be continually reviewed, maintained, and improved. Keep minutes or a
record of the meetings.
Hold daily press inspections in addition to regular maintenance checks. You will keep your presses safe for production
and exhibit your commitment to safety.
Please read and use this manual as a guide to molding machine safety. This manual contains safety warnings
throughout, specific to each function and point of operation. It is to promote and increase safe press operation in your
company.
2.3 OPERATOR RESPONSIBILITY
It doesn't end with fast and efficient production. The press operator usually has the most daily contact with the press and
intimately knows its capabilities and limitations.
Plant and personal safety is sometimes forgotten in the desire to meet incentive rates, or through a casual attitude toward
machinery formed over a period of months or years. Your employer probably has established a set of safety rules in your
workplace. Those rules, this manual, or any other safety information will not keep you from being injured while
operating your press.
ONLY YOU can make safety work for you by constantly thinking about what is safe and what is not. It is often the "just
once" that a press operator reaches into a press to remove or adjust material, or rest a hand in the ram area while talking
to a co-worker that results in serious injury.
Learn and always use safe press operation. Cooperate with co-workers to promote safe practices. Immediately report
any potentially dangerous situation to your supervisor or appropriate person.
REMEMBER:
•NEVER place your hands or any part of your body in the mold area or other dangerous locations.
•NEVER operate, service, or adjust press or molds without the appropriate training and first reading and
understanding this manual.
•NEVER try to pull material (either a part or scrap) out of the mold with your hands! If a part sticks in the
mold, stop the press and call your supervisor.
•NEVER place your hands or any part of your body in the mold area or other dangerous locations. In
addition to the crushing hazard presses equipped with heated platens present a hazard of burn from hot
platen and mold surfaces.

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•NEVER operate press without shields in place to protect the operator from the hazards of projectiles from
molds and tooling not centered or improperly mounted, spray of liquids or process material from
improperly filled molds and tooling.
•NEVER pump the manual jack handle without first verifying that the press base bolster has been securely
mounted to a suitable work surface to avoid the potential of the press tipping over while the jack is being
pumped.
•NEVER attempt to open the electrical enclosure of presses equipped with electrically heated platens
without first verifying the electrical power has been disconnected and locked out. This will avoid the
hazard of electrical shock. Access to electrical control components should only be authorized to trained
maintenance personnel following approved procedures.
Before you start the press, check the following:
•remove all maintenance crew equipment from the press area;
•make certain safety blocks are removed from the mold;
•be sure no objects (tools, nuts, bolts, clamps, bars) are laying in the press clamp area;
•carefully look for obstructions left in the mold;
•If your press has been inoperative or unattended, even for a moment, check all settings before starting the
next cycle.
•If your press has multiple platens, be sure ALL floating platens are completely open before reaching into
the clamp area.
•At the beginning of your shift and after breaks, cycle the press several times to verify that the controls,
press parts, molds and auxiliary equipment are functioning properly.
•Keep all safety guards in place and in good repair. NEVER attempt to bypass, modify, or remove safety
guards. Such alteration is not only unsafe, but will void the warranty on your equipment.
•When changing press control settings to perform a different mode of operation, be sure selector switches
are correctly positioned. Test cycle the press to verify it will operate as planned. Locking selector
switches should be adjusted only by authorized persons and the keys removed after setting.
•Do not talk to others while operating a press. If you must talk, stop the press and step away from it until
the conversation is completed.
•DAILY clean the press and surrounding area, and inspect the machine for loose, missing, or broken parts.
•Shut off power to the press when it is not in use. Lock the control panel or disconnect switch in the OFF
position or unplug press from power source.
Report the following occurrences IMMEDIATELY:
unsafe operation or condition
unusual press action
leakage
improper maintenance

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•NEVER stand or sit where you could slip or stumble into the press while operating it.
•DO NOT wear loose clothing or jewelry, which can be caught while operating a press. Also cover or tie
back long hair.
2.4 MOLD SETTERS RESPONSIBILITY
What they sometimes forget is their own safety during the installation or removal of a mold. To successfully perform
this job, the mold setter must gain a good working knowledge of the press, molds, materials, and must know how to use
a mold truck and other handling equipment.
Technical knowledge is not enough. The mold setter's sense of personal safety is crucial. Installing and testing mold
guards and point of operation safety devices is as important as properly mounting the mold to the press.
DON'T FORGET
•NEVER place your hands or other part of your body within the mold area unless the power is OFF to the
press.
•If the press has multiple openings, be sure that ALL floating platens are completely open before installing
tooling.
•NEVER install, adjust, or remove molds without the appropriate training and first reading and understanding
this manual.
•NEVER move molds or service the press with the electric power on.
•Clean bolsters, platens, and molds before installing the mold set. Dirt or foreign materials can cause
misalignment, resulting in operator injury and/or press and mold damage.
•ALWAYS lock out the control panel or disconnect switch in the [OFF] position to prevent unauthorized use
or accidental starting of the press.
•NEVER install worn or damaged molds. Make sure the clamp pressure is properly adjusted, relative to the
mold size (refer to the "Mold Size vs. Tonnage" chart in the Maintenance Section 5.4 of this manual.
•Secure all molds to the mold truck before you move them.
•When clamping molds to the press, use the appropriate number and size of clamps to hold the molds securely
(please consult your mold manufacturer if in doubt about appropriate clamp usage).
•NEVER install molds or tooling in the two post constructed presses that do not result in the clamp force being
centered on the bolsters or platens.
•After installing molds, make all necessary adjustments BEFORE cycling the press.
•Make sure all persons are clear of the press and remove all objects from mold area (tools, nuts, bolts, clamps,
bars) before cycling.
•Watch the press in operation to make sure molds and equipment are working properly.

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•Before the press is used for production, replace all guards and applicable safety devices to protect the operator.
•If the press operator is required to load or unload parts, provide safe and appropriate tools (cotton gloves,
safety tongs, vacuum lifters, pliers, or other mechanical devices) for his or her use.
•When changing press control settings to perform a different mode of operation, be sure selector switches are
correctly positioned. Test cycle the press to verify it will operate as planned. Locking type selector switches
should be adjusted only by authorized persons and the keys removed after setting.
•NEVER change selector switches on the press during a cycle.
•If the press has been inoperative or unattended, even for a moment, check all settings before starting the next
cycle.
Report the following occurrences IMMEDIATELY:
•unsafe operation or condition
•unusual press action
•leakage
•improper maintenance
2.5 MAINTENANCE RESPONSIBILITY
Safety is essential to the good health of both man and machine. If you are a maintenance worker, you must make safety
a priority in order to effectively repair and maintain press equipment.
BEFORE REMOVING, ADJUSTING, OR REPLACING PARTS ON A MACHINE, REMEMBER TO:
•BLEED all pressure from system components (refer to the Maintenance Section of this manual.)
•TURN OFF all air, water, and hydraulic pressure supplies and all accessory equipment at the machine.
•DISCONNECT AND LOCK OUT electrical power and attach warning tags to the press disconnect switch
and air shutoff valve.
•If the press has multiple openings, be sure ALL floating platens are completely open before servicing.
•AVOID contact with hot platen and mold surfaces. Presses equipped with heated platens present the hazard of
burns, verify the heat controls are turned off and the platens and tooling are allowd to cool before servicing the
press.
When you need to perform maintenance or repair work on a press above floor level, use a solid platform, portable
scaffolding lashed to the press, or a hydraulic elevator. If there is a permanently installed catwalk on your press, use it.
The work platform should have secure footing and a place for tools and parts. DO NOT climb on presses or work from
ladders.
If you need to repair a large press component, use appropriate handling equipment. Before you use handling equipment
(portable "a" frames, electric boom trucks, fork trucks, overhead cranes) be sure the load does not exceed the capacity of
the handling equipment or cause it to become unstable.
Carefully test the condition of lifting cables, chains, ropes, slings, and hooks before using them to lift a load.