EasyManua.ls Logo

HURST SP 777 E2 - Actuating the Star Grip Valve; Cutting Operation; Spreading Operation; Pulling Operation

Default Icon
88 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
9
en
es
fr
pt
4.5 Actuating the star grip valve
The working action is triggered by turning the star grip valve (Figure C)�
Every rescue device has a deadman function� When the star grip is released, Every rescue device has a deadman function� When the star grip is released,
it returns to the center/neutral position automatically� This ensures the load is it returns to the center/neutral position automatically� This ensures the load is
retained� retained�
4.5.1 Cutting
Turn the star grip valve in the cutting direction (Figure D)�
Position the cutter as perpendicular as possible to the object to be cut (Figure E)�
Cut close to the pivot point of the blade� (Figure F)�
4.5.2 Spreading
Turn the star grip valve in the spreading direction (Figure G)�
Open a small gap at the start, then insert the spreader tips as far into the gap as
possible� Do not spread with the aluminum arms! (Figure H�)
4.5.3 Pulling
Secure the traction device in the Attachment / Bolt hole (6)� Actuate the star grip
valve in the closing direction (Figure D)�
4.5.4 Squeezing
Only squeeze in the squeezing area and with the squeezing plates of the spread-
er arms (Figure J)� Actuate the star grip valve in the closing direction (Figure D)�
4.5.5 Peeling
Special peeling tips are needed for peeling (Figure K)� Actuate the star grip valve
in the opening direction (Figure G)�
4.5.6 Pushing
Place the rescue ram between the object to be pushed and actuate the star grip
valve in the extending direction (Figure L)�
4.6 Removing the tips
The removeable tips are connected to the device arm with bolts� To remove the
tips, the bolts must be fully pushed in and then fully locked again (Figure I)�
4.7 Dismantling/shutting down after operation
Once work has been completed, the device arms should be closed until the tips are
only a few millimeters apart and the ram piston should be almost fully retracted and
then extended a few millimeters� This relieves the hydraulic and mechanical strain
on the equipment� For transport and storage, all devices should be secured and not
loosely stored�

Table of Contents

Related product manuals