Technical Description; System Construction - REHOBOT CH Serie Instrucciones De Uso

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Thank you for the faith you have shown in us by choosing
a REHOBOT product. REHOBOT stands for products of high
quality and it is our hope that you will be able to use this
product for many years.
To avoid functional disturbances, we recommend that
you read these instructions thoroughly before using the
product.
Receiving instructions
Visually inspect all components for shipping damage.
Shipping damage is not covered by warranty. If shipping
damage is found, notify carrier at once. The carrier is
responsible for all repair and replacement costs resulting
from damage in shipment.
Read the warnings and instructions to prevent personal
injury or damage to property. Take all appropriate safety
precautions and wear suitable safety equipment, such as
gloves, safety glasses, etc.
REHOBOT AB accepts no liability for injury or the conse-
quences of using REHOBOT products without taking suit-
able safety precautions, using a product or system for the
wrong application, or through inadequate maintenance. If
in any doubt contact REHOBOT or an authorised REHOBOT
dealer.

Technical description

REHOBOT hollow cylinders are available in four different
versions:
CH –
Single-acting
CHF – Single- acting with spring return
CHFA – Single- acting with spring return, aluminum
CHD -
Double-acting
Information regarding the model type, capacity, maximum
working pressure and serial number is engraved on the
cylinder tube, see Fig. 1.

System construction

Always plan a hydraulic system by choosing products that
are suitable for the task in hand. Check product limitations
regarding pressure range, lifting capacity and compatibility.
The maximum working pressure of the system must not
exceed the maximum working pressure of any product in
the system.
We recommend the use of pressure gauges with any
hydraulic system to ensure that it is operated within its
safe working range.
Make sure that all hydraulic hoses, connections, etc., are
connected to the right connection port (pressure or return
port) on the pump, ram, valve or other hydraulic compo-
nent.
REHOBOT Hydraulics AB
Skjulstagatan 11 A, 632 29 Eskilstuna, SWEDEN P.O. Box 1107 631 80 Eskilstuna
T. +46 (0)16 - 16 82 00 F. +46 (0)16 - 13 93 16 info@rehobot.se www.rehobot.se
Applications
Because of its design the hollow cylinder can be used for
both pushing and pulling operations.
Pushing operations
Pushing/Lifting
When a hollow cylinder is used as a conventional ram we
recommend the use of a solid pressure head (THR). (See
under heading Accessories.)
Position the cylinder on or against a solid flat surface before
lifting. Never lean over a pressurised cylinder or pump lever.
Secure the load before lifting to make sure that it cannot roll
or slip.
Never work underneath a raised load without first
securing it with blocks or some other mechanical
support.
Never disconnect a cylinder from the pump when
the hydraulic system is under pressure.
Pushing onto shafts (Fig. 2)
When the cylinder is used for applications such as pushing
a bearing (A) onto a shaft (B) it is important that the stop or
nut (C) has as large a surface area as possible so that the
force is spread over the entire base of the cylinder.
Never stand behind a cylinder when carrying out
this type of work. If the stop or shaft breaks this
could result in injury.
Never disconnect a cylinder from the pump when
the hydraulic system is under pressure.
Pulling operations
Pulling operations usually exploit the fact that the cylinder is
hollow.
Fitting (Fig. 3)
A rod (B) is inserted through the object to be pulled (A) and
through the cylinder itself. Stops (C) are fitted to both ends
of the rod (B). A pressure head with threaded hole can be
used as a stop at the piston end.
Removal (Fig. 4)
A rod (B) is inserted through the object to be pulled (A),
through the spacer (D) and through the cylinder itself. Stops
(C) are fitted to both ends of the rod (B). A pressure head
with threaded hole can be used as a stop at the piston end.
Never stand in front of or behind a cylinder when
carrying out this type of work. If the stop or shaft
breaks this could result in injury.

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Chf serieChfa serieChd serie

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