HURST SP 333 User manual

271081085 EN
Edition 03.2016
(Original instruction manual)
Spreaders
Instruction manual for rescue equipment
Built to extend lives.™
SP 333
SP 555

2
Content Page
1.Hazard classes 4
2.Product safety 5
3.Proper use 8
4.Description of the functions 9
4.1 Description 9
4.2 Unit in detail 10
4.3 Circuit diagram 11
4.4 Control of the operating movements 11
4.5 Hydraulic supply 11
4.6 Hoses 11
5.Connecting the equipment 12
5.1 General information 12
5.2 Coupling the mono-couplings 12
6.Operation 14
6.1 Preparatory measures 14
6.2 Operating the star grip 14
7.Spreading, pulling and squeezing 15
7.1 Safety notes 15
7.2 Spreading 16
7.3 Pulling 17
7.4 Squeezing 18
8.Dismantling the equipment / deactivation following operation 19
8.1 Spreader 19
8.2 Hydraulic unit 19
8.3 Hoses 19
9.Maintenance and service 19
9.1 Spreader, overall 20
9.2 Protective equipment 20

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10.Repairs 21
10.1 General information 21
10.2 Preventative service 21
10.3 Repairs 22
11.Troubleshooting 30
12.Technical data 32
 12.1 Recommendedhydraulicuid 35
12.2 Operating and storage temperature ranges 35
12.3 Oscillation / vibration 35
13.Notes 35
Content Page

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1. Hazard classes
Wear helmet with face protection
Wear safety gloves
Wear safety shoes
Proper recycling
Observe principles of environmental protection
Read and observe operating instructions
We distinguish between various categories of safety notes. The table below gives you an
overview of the assignment of symbols (pictograms) and key words to the specic hazard
and possible consequences.
Pictogram Damage /
injury to Key word Denition Consequences
human
DANGER! Immediate danger Death or major
injury
WARNING!
Potentially
dangerous
situation
Potential death or
major injury
CAUTION! Less dangerous
situation
Minor or slight
injury
device
CAUTION!
Danger of damage
to device /
environment
Damage to the
equipment,
damage to the
environment,
damage to
surrounding
materials
- REMARK
Advice for
application and
other important /
useful information
and advice
No injury /
damage to
persons /
environment /
equipment

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2. Product safety
HURST products are developed and manufactured in order to guarantee the best
performance and quality when used properly.
Operator safety is the most important aspect of the product design.
Moreover, the operating instructions are intended to help the safe use of HURST products.
The generally applicable, legal and other binding regulations pertaining to the prevention of
accidents and protection of the environment apply and are to be implemented in addition to
the operating instructions.
The equipment may only be operated by persons with appropriate training in the safety
aspects of such equipment – otherwise, there is a danger of injury occurring.
We would like to point out to all users that they should read carefully the operating instructions
and the instructions contained therein before they use the equipment, and that they should
carefully follow such.
We further recommend that a qualied trainer train you in the use of the product.
WARNING / CAUTION!
The operating instructions for the hoses, the accessories and the connected
hydraulic equipment must also be observed!
Even if you have already received instructions on how to use the equipment, you should still
read the following safety notes through again.
WARNING / CAUTION!
Ensure that the accessories and connected equipment used are suitable for
the max. operating pressure!
Please ensure that no body
parts or clothing get stuck
between the visibly moving
parts (e.g. spreader arms).
It is prohibited to work under
load if this load is lifted
exclusively by hydraulic
equipment. If this work
is absolutely imperative,
additional mechanical
supports must be used.
Wear protective clothing,
safety helmet with visor,
protective gloves
Inspect the equipment before
and after use for visible
defects or damage
The responsible department
is to be informed immediately
of any changes (including to
the operating behaviour)! If
necessary, the equipment is
to be deactivated immediately
and secured!
Inspect all cables, hoses
and screwed connections for
leaks and externally visible
damage! If necessary, repair
immediately! Squirting oil can
result in injuries and res.

6
In the event of malfunctions,
immediately deactivate the
equipment and secure it. The
malfunction is to be repaired
immediately.
Do not carry out any changes
(additions or conversions)
to the equipment without
obtaining the prior approval of
HURST.
Observe all safety and danger
notes on the equipment and
in the operating instructions.
All safety and danger notes
on the equipment are to be
kept complete in a legible
condition.
Any mode of operation which
impairs safety and/or stability
of the equipment is forbidden!
Comply with all specied
dates or dates specied in
the operating instructions
pertaining to regular controls /
inspections on the equipment.
Safety devices may never be
deactivated!
The maximum permitted
operating pressure noted on
the equipment must not be
exceeded.
Before the equipment is
switched on/started up, and
during its operation, it must
be ensured that nobody is
endangered by the operation
of the equipment.
Only original HURST
accessories and spare parts
may be used for repairs.
Please ensure that, when
working with this equipment
or during transportation of
such, you don’t get stuck in
the looped hoses and trip.
When working close to live
components and cables,
suitable measures must
be taken to avoid current
transfers or high-voltage
transfers to the equipment.
Please note that, when
spreading, tearing or breaking
can cause falling material, or
sudden removal of such can
cause it to suddenly catapult
o󰀨: necessary precautions
need to be taken.
The build-up of static
charge with the potential
consequence of spark
formation is to be avoided
when handling the equipment.
Only touch any broken-o󰀨
parts wearing protective
gloves, since the torn edges
can be very sharp.

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The generally applicable, legal and other binding national and international regulations
pertaining to the prevention of accidents and protection of the environment apply and are to
be implemented in addition to the operating instructions.
WARNING / CAUTION!
The equipment is to be used exclusively for the purpose stated in the operating
instructions (see chapter “Proper Use”). Any other or further use is not considered
proper use. The manufacturer / supplier is not liable for any damages resulting from improper
use. The user bears sole responsibility for such.
Observance of the operating instructions and compliance with the inspection and maintenance
conditions are part of the proper use.
Never work when you are overtired or intoxicated!
The equipment is lled
with a hydraulic uid.
These hydraulic uids can
be dangerous to health if
swallowed or their vapours
inhaled. Direct contact with
the skin is to be avoided for
the same reason. Please also
note that hydraulic liquids can
also have a negative e󰀨ect on
biological systems.
When working with or storing
the equipment, ensure that
the function and the safety
of the equipment are not
impaired by the e󰀨ects of
stark external temperatures
or that the equipment is
damaged in any way. Please
note that the equipment can
also heat up over a long
period of use.
Ensure adequate lighting
when you are working.
Before transporting the
equipment, always ensure
that the accessories are
positioned such that they
cannot cause an accident.
Always keep these operating
instructions within reach
where the equipment is used.
Ensure the proper disposal
of all removed parts, left-over
oil, left-over hydraulic uid
and packaging materials!

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3. Proper use
HURST spreaders and combi tools can also be used under water at a depth of up to 40m
(131 ft).
CAUTION!
In this case, you must strictly observe any leaks in order to avoid threats to the
environment.
CAUTION!
All objects which are to be worked on are to be secured using stable supports or
substructures.
g. 1 g. 2
HURST spreaders are designed especially for rescue services. They are used to release
persons trapped as a result of a road accident e.g. by forcing open the car doors (see
below Fig. 1) or by squashing other parts of the vehicle. In other catastrophic situations they
are used to lift (by spreading) or to displace objects in order to rescue buried or trapped
persons, e.g. by concrete components in collapsed houses (see below Fig. 2), and to squash
constructional components, e.g. pipes.
In principle, objects can be pulled, spread, squashed or compressed in length.
All objects to be worked on are to be secured using stable supports or substructures.
When lifting loads, additional risks to the operator and/or persons not involved may be
posed if the load moves in an uncontrolled manner or if the spreader slips or tips over.
When applying the tool and lifting, make sure that there is no danger, if necessary by using
additional supports or safety devices.

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WARNING / CAUTION!
The following may not be squeezed:
- live cables
- hardened parts such as springs, spring steels, steering columns
and rollers
- explosive bodies such as airbag cartouches
NEVER operate the rescue equipment at a higher operating pressure than that
stated in the chapter “Technical data”. A higher setting can result in material
damage and/or injuries.
HURST rescue equipment may only be used in areas at risk of explosion if an
explosion has been prevented by appropriate measures You must also take into
account that sparks may be created, for example by spreading or squashing an
object.
When working in areas at risk of explosion, all applicable legal,
national and international regulations, standards and safety rules
for avoiding explosions must be observed without limitation!
Spare parts and accessories for the rescue tool can be ordered from your authorisied
HURST-dealer!
4. Description of the functions
4.1 Description
The equipment is designed such that, via a hydraulically activated piston, two equal, opposite
spreader arms are symmetrically opened by mechanical joints, thereby spreading objects.
Closing the spreader arms is also carried out hydraulically and mechanically by reverse
order of the piston.
All spreaders ensure full load-holding function when disconnected from the hydraulic supply
(e. g. when being unintentional decoupled; defective hose, and so on).

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4.2 Unit in detail
1
2
3
4
5
7
6
9
10
11
7
8
4
5
6
SP 555
13
12
13
14
SP 333 1
2
3
4
5
7
6
9
10
11
7
8
4
5
6
13
12
13
14
1 Star grip
2 Spreader body
3 Handle
4 Protective cover
5 Spreading arm
6 Tip with borehole for chain set
7 Roll pin
8 Pressure hose
9 Return hose
10 Handhold
11 Mono-coupling male
12 Squeezing device
13 Protective plate for spreader arm
14 Yoke cover