Safety Features - REHOBOT DHSM50-720 Mode D'emploi

GB
Thank you for the confidence you have shown in us by choosing a REHO-
BOT product. REHOBOT stands for high quality products and we hope that
this product will serve you well for many years.
To avoid problems in operation we recommend that you read these
instructions before you use the product.
Technical description (Fig.1a,b)
DHSM50-720
Max. working pressure:
Max. spreading force:
Max. pulling force:
Max. opening:
Weight:
EN13204:
DHS50-720
Max. working pressure:
Max. spreading force:
Max. pulling force:
Max. opening:
Weight:
EN13204:
The tool is operated by means of the rotary handle. Turn the handle
anticlockwise to spread (Fig.2a), and turn it clockwise to compress or pull
(Fig.2b).
To permit connection to a pump the tool is fitted with two 0.5 m (1.6 ft)
long hoses and quick couplings with dust caps, one male and one female
coupling. The female coupling is fitted with a locking ring. NOTE, other
types of coupling may occur. The tool's pressure hose is labelled "PRES-
SURE" at the hose end.

Safety features

Dead man's handle, tool stops when handle is released.
Safety valve which protects the tool if the return hose has been incor-
rectly connected. An indication that the safety valve has been released
and that the return hose is erroneously connected is that a small amount
of oil is leaking out in the front end of the operation valve.
A holding function, which enables the tool to remain standing with
load, even if the hoses are disconnected. Even if the operation handle
is twisted, the tool remains in position as long as the hoses are discon-
nected.
Connecting/Disconnecting (Fig. 3)
To connect the tool to a pump, connect the tool pressure hose to
the pump pressure hose. Both hose ends are labelled with the word
"PRESSURE". The tool can be connected directly to the pump or via a
separate hose reel. Similarly, the tool return hose is connected to the
pump return hose, directly or via a separate hose reel.
The male and female couplings can only be connected when the hoses
are depressurised and the locking ring on the female coupling has been
screwed back.
After connection, the locking ring on the female coupling must be screwed over
the male coupling. This prevents accidental disconnection and shows that the
couplings are properly connected.
The male and female dust caps should now be joined together as shown
in. This prevents the dust caps from becoming contaminated.
To disconnect the tool, simply reverse the sequence. NOTE, the hoses
must be depressurised before being disconnected. After disconnection, fit
the respective dust caps to the couplings to prevent contamination of the
couplings.
REHOBOT Hydraulics AB
80 MPa (800 bar, 11600 psi)
254 kN (25.9 ton, 28.5 sh tn )
63 kN (6.4 ton, 7.1 sh tn)
720 mm (28.3 in)
21,2 kg (46.7 lbs)
AS50/720-21,2
80 MPa (800 bar, 11600 psi)
254 kN (25.9 ton, 28.5 sh tn )
63 kN (6.4 ton, 7.1 sh tn)
720 mm (28.3 in)
21 kg (46.3 lbs)
AS50/720-21
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
Practical work
Lifting
Always strive to get the tool operating at right angles to the object. If the
tool starts to twist - stop the operation ! Get a new grip and try again.
If the tool has started to twist, it never becomes better, but always worse.
A usual cause for the tool to twist is that the load is gliding sideways.
Therefore always secure the load before starting the operation.
Never work under a raised load without first securing it by support blocks
or other mechanical support.
Spreading
Always strive to get the load as far as possible into the tips to avoid the
tips loosing their grip.
If the tool starts to twist - stop the operation ! Get a new grip and try
again.
If the tool has started to twist, it never becomes better, but always worse.
Pulling
Open the tool fully. Fit chain attachment RT48 (Fig. 4a). Fasten one
chain around the object to be pulled and the other to a suitable restraint.
Stretch the chains and attach to the hooks of the chain attachment.
When pulling it is important that the chains describe a straight line
between the shears and attachment so that the spreader shears are not
subject to bending (Fig. 4b).
Always check that the chains are securely attached to the tool and the
object being pulled.
Pressing
When pressing it is important that the spreader shears do not begin to
open up sideways (Fig. 5). If this happens – stop pressing! Realign the tool
and try again.
Cutting
To cut plate up to 3 mm (0.1 in) thick, the tool can be fitted with shear tips
RT47 (Fig. 6a).
If you want to be sure of a certain cutting direction, the shear tip can be
used together with a standard tip (Fig. 6b).
After finished work
To remove the inside pressure of the tool - Run the tool together until the
gap between the tips is about 10 mm (1/2 in).