Carver 4350 Instruction Manual

CARVER®
OPERATION, INSTALLATION AND MAINTENANCE MANUAL
4350 MANUAL PELLET PRESS
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]

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/m2) at sea level and using 60 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,
nd dimensions described in this manual are subject to change without notice.a
CARVER, INC. 1998
All Rights Reserved.
Part #: 1520.48 Effective: 02/23/98
CARVER INC
2

TABLE OF CONTENTS
SECTION ONE INTRODUCTION .......................................................................................................... 1-1
1.1 INTRODUCTION ........................................................................................................................ 1-1
1.2 ACCESSORIES............................................................................................................................ 1-1
1.3 CUSTOMER SERVICE ............................................................................................................... 1-1
1.4 SAFETY CONSIDERATIONS.................................................................................................... 1-1
SECTION TWO INSTALLATION ........................................................................................................... 2-1
2.1 MANUAL PELLET PRESS DESCRIPTION.............................................................................. 2-1
2.2 INSTALLATION ......................................................................................................................... 2-1
2.3 SETTING UP................................................................................................................................ 2-1
2.4 RAM FORCE CALCULATION .................................................................................................. 2-1
2.5 FILLING THE OIL RESERVOIR ............................................................................................... 2-2
SECTION THREE OPERATION.................................................................................................................. 3-1
3.1 OPERATOR SAFETY .................................................................................................................3-1
3.2 OPERATING THE HYDRAULIC PRESS.................................................................................. 3-1
3.3 DAYLIGHT ADJUSTMENT....................................................................................................... 3-1
SECTION FOUR MAINTENANCE........................................................................................................... 4-1
4.1 TROUBLESHOOTING................................................................................................................ 4-1
4.2 HYDRAULIC UNIT - AIR BLEED PROCEDURE.................................................................... 4-1
4.3 RECOMMENDED HYDRAULIC OILS FOR CARVER PRESSES.......................................... 4-1
SECTION FIVE ACCESSORY EQUIPMENT......................................................................................... 5-1
SECTION SIX CARVER, INC. SERVICES .......................................................................................... 6-1
6.1 TECHNICAL ASSISTANCE....................................................................................................... 6-1
6.2 RETURNED MATERIAL POLICY ............................................................................................ 6-1
SECTION SEVEN WARRANTY ................................................................................................................. 7-1
7.1 WARRANTY RETURNS ............................................................................................................ 7-1
7.2 WARRANTY ............................................................................................................................... 7-1
SECTION EIGHT APPENDIX .................................................................................................................... 8-1
CARVER INC
3

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 situations, 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 HeatedPlatens, 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.
1.4 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 that could cause injury, you should immediately
discontinue its use and inform CARVER, INC., at our address listed in this manual.
CAUTION: CARVER strongly recommends the use of safety glasses when operating pressing equipment.
1-1

The principle factors that 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. Operating the press with the safety shield door open.
1-2

SECTION TWO INSTALLATION
2.1 MANUAL PELLET PRESS DESCRIPTION
CATALOG # 4350
CLAMP FORCE US
TONS
Kn
12
106.8
PLATEN DIA. IN.
MM.
4
101.6
RAM STROKE IN.
MM.
5.125
130
DAYLIGHT
OPENING
IN.
MM.
0-5.5
0- 139.7
FOOTPRINT
W x D
IN.
MM
10.5 x14.125
267 x 359
HEIGHT IN.
MM.
27.875
581
WEIGHT
lbs
Kg
120
54.5
NOISE LEVEL <70db(A)
MAX. SYSTEM
PRESSURE -
PSI
bar
7295
503
2.2 INSTALLATION
To assist in the installation and operation of this press, an assembly drawing (including part numbers) is included in the
appendix of this manual.
2.3 SETTING UP
Through the opening in the rear of the press enclosure remove the solid plug from the oil fill hole in the jack,
using a 7/16)socket, replace this plug with the provided sintered breather.
IMPORTANT: DO NOT operate the hydraulic unit with the solid shipping plug in the oil fill hole or damage to the
hydraulic unit may occur.
The CARVER Manual Pellet Press was carefully designed with a low center of gravity and an extended base to remain
stable under normal operating conditions.
2.4 RAM FORCE CALCULATION
2-1

All CARVER gauges are calibrated for the specific ram diameter of the hydraulic unit. The Manual Pellet 12-ton ram
is 3.294 square inches. The standard gauge readings display the load, or force, in pounds as well as metric tons applied
between the platen and head of the press. Accordingly, all calibrations show the load in pounds-force applied by the
press to the material being pressed. For example: a 10,000 lb. load applied to material having an area of one square
inch (one square mm) would be equal to a pressure of 10,000 lbs. per square inch applied to the material. Or, if the
material being pressed has an area of four square inches (258.08 square mm) a 10,000 lbs. applied load would be equal
to 2,500 lb. per square inch on the material.
EXAMPLE: 10,000 lbs. FORCE = 2,500 PSI
4 square inches
CARVER gauges are highly sensitive, precision instruments. Care should be taken to avoid sudden decompression,
shock loading, over-pressurization, etc., which will result in damage to the gauge and void the warranty.
2.5 FILLING THE OIL RESERVOIR
The hydraulic unit is filled with oil at CARVER, INC. and should not require additional oil. In the event there is some
oil loss, lower the platen, remove the sintered breather plug, and fill with oil up to the level of the filler hole. Only
special CARVER # 2170 Hydraulic Fluid, or a brand name filtered HYDRAULIC JACK OIL, should be used. Refer
to Section 4 for recommended substitutes.
IMPORTANT: Brake fluid and similar products may damage your unit and will void the warranty.
2-2

SECTION THREE OPERATION
3.1 OPERATOR SAFETY
1. Make certain to close and latch the safety shield door before operating the press.
2. The operator should wear safety glasses or a face shield when performing operations under high load
conditions to prevent eye or face injury should a test specimen burst and scatter.
3. When using caustic or acid test specimens, a face shield, apron, and rubber gloves should be used for the
protection of the operator.
4. Place the CARVER 3619 Pellet Die in the recessed area on the 4” dia. Platen (be sure the die is seated in the
bottom of the recess). This will prevent tilting of the platen and possible ejection of the work piece under
pressure. Always avoid uneven loading of the press components. If another die is to be used and its diameter is
greater than that of the recess, insert the filler disk.
WARNING: The use of an extension handle longer than provided with the standard press may cause the press to
be unstable, and may cause an "over pressure" condition, resulting in damage to the hydraulic unit.
5. When the top head has been repositioned, the height on both sides must be measured to be sure that the top
bolster is parallel with the base.
CAUTION: CARVER recommends the use of safety glasses while operating this equipment.
6. Always check the pressure rating of the pressed apparatus prior to pressing to be sure it is rated for the applied
force.
IMPORTANT: The gauge on the CARVER laboratory press shows the total force exerted by the press. It DOES
NOT show the pressure on the specimen (PSI). To find the PRESSURE (P) on the specimen, the
observed FORCE (F) reading on the gauge must be divided by the specimen AREA (A), per the
equation P = F/A. When using a CARVER test cylinder outfit or pellet die, use the ID measurement
to find the actual AREA (A) of the specimen.
3.2 OPERATING THE HYDRAULIC PRESS
Before attempting to operate the hydraulic unit, make certain that the release valve screw is closed finger tight.
IMPORTANT: DO NOT rotate the release valve more than one full turn in the counterclockwise direction.
Opening the release valve approximately one-half turn releases the pressure and allows the platen to open.
Decompression can be slowed to some degree by very slowly turning the release screw.
Please keep in mind that no hydraulic unit will maintain constant pressure without some additional pumping. This is
especially true when pressing against a soft or yielding material. Some pumping is required to offset normal packing
leakage. After the desired pressure is obtained, an occasional stroke or two will normally maintain the pressure.
3.3 DAYLIGHT ADJUSTMENT
Refer to drawing 100426C for information describing your press.
3-1

Threaded columns allow for daylight adjustment between the moving platen and top bolster.
o raise the top bolster T:
1. Remove back panel by removing the (6) button head cap screws.
2. Remove the eyebolt from the top bolster.
3. removing (4) button head cap screws from the bottom of the
shield and lifting the assembly off of the press.
4. e moving platen and top bolster; pump the hydraulic
unit to build force the maximum capacity of the press.
5. With the press at maximum applied force, loosen the column nuts located directly below the top bolster
6. Release hydraulic force and remove the spacer, allowing the top bolster to rest on the lower column nuts.
7. Move the upper column nuts to the position required creating the desired daylight.
8. top bolster against the top nuts and tighten the lower nuts finger tight against the bottom of the top
bolster.
9.
elism
between the top bolster and base bolster. Turn the upper column nuts finger tight against the top bolster.
10.
enough to build force on spacer), pump the hydraulic unit to build force to the maximum capacity of the press.
11. Tighten the lower nuts against the bottom surface of the top bolster as tight as possible.
12. This is a good time to check the nuts on top of the base bolster and if necessary, retighten.
13. Open press and remove the spacer.
14. Reinstall the safety shield; the press is now ready to operate.
o lower the top bolster:
1. Remove back panel by removing the (6) button head cap screws.
2. Remove the eyebolt from the top bolster.
3. removing (4) button head cap screws from the bottom of the
shield and lifting the assembly off of the press.
4. moving platen and top bolster; pump the hydraulic
unit to build force to the maximum capacity of the press.
5. irectly below the top bolster.
Move these column nuts to the position required to create the desired daylight.
6. Release hydraulic force and remove the spacer allowing the top bolster to rest on the lower column nuts.
Remove safety shield top/side/door assembly by
Insert a spacer block with parallel surfaces between th
Raise the
Measure and equalize the distance from the bottom surface of the top bolster to the top surface of the base
bolster at two points as far apart as possible. Adjust the lower nuts as needed to insure parall
Insert a spacer block with parallel surfaces between the moving platen and the top bolster (spacer must be tall
T
Remove safety shield top/side/door assembly by
Insert a spacer block with parallel surfaces between the
With the press at maximum applied force, loosen the column nuts located d
3-2

3-3
gainst the top surface of the top bolster.
ARNING: After adjusting the daylight, be sure the top bolster is parallel to the top surface of the base bolster
7. Tighten the upper column nuts finger tight a
8. Follow steps 9 thru 14 as described above.
W
before applying pressure.
PORTANT: In all cases, size the spacer block so the maximum stroke of the hydraulic unit (5.125”) is not
IM
exceeded.
WARNING: red on moving bolster (or platen). Be certain that spacer is strong enough
Spacer block must be cente
to withstand maximum applied force of press and that its area is great enough to prevent coining the
bolster (or platen) surface.