Carver Inc 4-1
SECTION FOUR OPERATION
4.1 OPERATOR SAFETY
1. Before closing the press be sure all shields are installed and doors or gates are fully closed..
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. The testing apparatus or test specimen must be centered on the press platen. This will prevent tilting of the
platen and possible ejection of the work piece under pressure. Always avoid uneven loading of the press
components. Locator plates are available from CARVER, INC. upon request.
5. CARVER, INC. recommends bolting the press to a work table whenever possible to avoid the hazard of
tipping over the press when pumping the manual jack handle.
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.
CAUTION: When using a press with hot plates, gauntlet gloves should be worn to protect the forearms and hands.
Steam can be released from a specimen when pressure is applied.
6. When the top head has been repositioned, the height on both sides must be measured to be sure that the head
bolster is parallel with the base.
CAUTION: CARVER recommends the use of safety glasses while operating this equipment.
7. Always check the pressure rating of the pressed apparatus prior to pressing to be sure it is rated for the applied
pressure.
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/BAR). 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, use the ID measurement to find the
actual AREA (A) of the specimen. (See Section 3)
8. To protect against squirting fluid, the apparatus may be placed inside a can or wrapped in a cloth.
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