Tangye PS620 User manual

Original Instructions
for
Hydralite Jacks
Revision 2 –Issue 1
(MOD 21237)
Allspeeds Ltd.
Royal Works, Atlas Street
Clayton Le Moors, Lancashire, UK.
BB5 5LW
01254 615100

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Rev 1. Issue 1. Date: 01/07/2021
Table of Contents
1Scope.......................................................................3
2Technical Data..........................................................4
2.1 Jack Weights..................................................................4
2.2 Oil Requirements...........................................................4
2.3 Environmental Considerations ......................................4
2.4 Noise and Vibration.......................................................4
3Declaration of Conformity ........................................5
4General Safety Rules ................................................6
4.1 Warnings........................................................................6
4.2 Important Information ..................................................6
4.3 General Safety ...............................................................6
4.4 Warning Symbols...........................................................7
4.5 Pinch Points ...................................................................8
5Operating Instructions..............................................9
5.1 Before Use .....................................................................9
5.2 Check Oil Level.............................................................10
5.3 Positioning the Jack.....................................................11
5.4 Raising the Jack............................................................14
5.5 Lowering the Jack ........................................................18
5.6 Jacks with Screwed Rams (Type S) ..............................19
5.7 Jacks with Lifting Claws (Type C) .................................20
5.8 100 Tonne Jacks Only ..................................................22
6After Use................................................................23
7Maintenance..........................................................24
8Parts List................................................................26
8.1 Seal Kit Components....................................................26
10 Decommissioning...................................................27

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1Scope
This manual covers the operation and maintenance of the
Hydralite range of Tangye hydraulic lifting jacks.
The Hydralite range are lightweight, moveable jacks designed
to lift heavy loads with low effort and maximum safety. These
jacks are not designed to be moved whilst under load.
These jacks are designed in accordance with BS EN 1494:2000
+A1 2008 –the British Standard for “Mobile or moveable
jacks and associated lifting equipment”
Please read carefully and work in accordance with this
instruction booklet and keep in a safe place for future
reference.
It is the responsibility of the purchaser to ensure that
operators are properly trained in the safe use of this
equipment and have access to this document.
No modification and/or additions may be made to this
equipment without the written permission of the
manufacturer.
It is expected that the product is used by competent technical
personnel who have been properly trained to use hydraulic
lifting equipment.

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2Technical Data
2.1 Jack Weights
Important: Ensure the correct Manual Handling procedures
are carried out when handling the jacks. Where a jack has a
claw attachment, the claw should be removed from the jack
and lifted separately.
The weight of the jack is marked on the nameplate affixed to
the jack base. All jacks have lifting handles and these should
be used during transportation. Larger jacks may need to be
moved by two people.
2.2 Oil Requirements
The Hydralite range of hydraulic jacks contain nitrile seals and
should only be used with good quality hydraulic oil (e.g. Shell
Tellus 32). For compatibility with any other fluid, please
contact the manufacturer.
2.3 Environmental Considerations
The jack is intended for use in industrial environments, inside
or outside, between temperatures of –20 to +50°C. The jack
should not be used outside these limits or in explosive
atmospheres/areas of nuclear radiation.
2.4 Noise and Vibration
By its design, the jack operates slowly under manual effort.
There is no noticeable noise or vibration. The noise level does
not exceed 70 dB(A).

3Declaration of Conformity

4General Safety Rules
4.1 Warnings
These warning are provided to improve safety and should be
carefully read before using or maintaining the equipment.
4.2 Important Information
It is vital that these instructions are available to the
equipment users. It is also important that they are retained
with the equipment if it is sold or transferred to another user.
Allspeeds LTD will not be held responsible for any damage to
the equipment or personal injury resulting from unsafe use of
the product, lack of maintenance or incorrect operation.
4.3 General Safety
To prevent the risk of injury, the jack should only be used by
fully trained and competent operators.
•Make sure that all safety devices are in place and
functioning correctly
•Make sure the working area is adequately lit and is
free of any obstructions
•Only operate the jack in a safe working environment
and not during poor weather conditions. (Do not
operate during rain/lightning/excessive heat etc.)
•The jack should not be used for the lifting of persons
Recommended PPE for operation and maintenance includes
safety shoes, safety glasses and gloves.

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Any spilt oil may create a slipping or tripping hazard. Care
must be taken around the work area.
4.4 Warning Symbols
General Hazard.
Hydraulic tool with inherently dangerous
moving parts.
Crushing Hazard
Do not put hand between jack and object
being lifted.
Tipping Hazard
Ensure jack is on level, smooth surface to
prevent tipping.
Lowering Hazard
Do not place anything under jack while
loaded unless mechanically locked
(With screw type jack etc.)

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4.5 Pinch Points
Care should be taken to avoid the two pinch points between
the operating quadrant and the jack body.
Keep all body parts away from these areas when operating
the jack to avoid injury.
Figure 1 –Pinch Points on the Jack

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5Operating Instructions
5.1 Before Use
•Visually inspect the jack to ensure that it is in good
condition.
•Check the external surfaces for mechanical damage and/or
oil leaks. If either is present do not use the equipment and
have the jack serviced.
•Ensure that the external surfaces are dirt free.
•Ensure the work area is clear and free from obstructions.
•Ensure the operator can watch the lifting device and the
load during all movements.

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5.2 Check Oil Level
The oil level should be checked with the ram fully descended.
The dipstick should be screwed fully into position prior to
testing to determine the level.
Remove the dipstick and check the oil level as shown in Figure
2. The maximum level is marked on the dipstick; the oil level
should be between this mark and the bottom of the dipstick.
If oil needs to be added, ensure that the surrounding area is
clean. Use high quality hydraulic oil such as Shell Tellus ISO 32
or equivalent.
Figure 2 –Removing and Checking the Dipstick

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5.3 Positioning the Jack
Place the jack on a firm level foundation fully supporting the
jack base, and if necessary, place suitable material between
the load point and jack ram to avoid damaging the structure
to be lifted.
The jack should only be used in the orientations shown
below:
Figure 3 –Jack Positions
IMPORTANT: Always ensure that the full base area of the jack
is supported when in use.
Position the jack so that the load bears centrally on the top of
the ram or on the full extent of the claw, ensuring that the
load cannot touch any static part of the jack during lifting.

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Always ensure that loads are applied centrally to the ram or
to the full extent of the claw.
Figure 4 –Applying Loads

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Do Not position the jack by using the operating lever in the
release valve. If the jack is to be placed some distance under
the load, use the operating lever in the operating
lever/quadrant socket to position the jack.
Figure 5 –Manoeuvring the Jack

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5.4 Raising the Jack
The jack has an in-built hydraulic pump, which is worked by
means of an operating lever, under the control of the
operator.
The ram should only be extended hydraulically; it should
never be pulled out by hand or used to carry the jack.
The permissible working load and the travel of the hydraulic
jack is marked on the equipment.
5.4.1 Warnings
Do Not overload the jack, especially when lowering loads.
Do Not under any circumstances go under a load when
hydraulic jacks solely support it. Should work under a load be
required, a screwed version of the jack (or other means of
support –e.g. chocks) should be used in order to
mechanically lock the load –see Section 5.6.
Do Not extend the ram by any means other than by pumping
the jack.
Do Not attempt to exceed the rated load of the jack on the
head or toe/claw.

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5.4.2 Tightening the Release Screw
Insert the ball on the end of the operating lever in to the hex
of the release valve screw on the base of the jack as shown in
the image below. Rotate clockwise until hand tight.
Figure 6 - Tightening the Release Valve Screw
5.4.3 Pumping the Jack
Insert the operating lever fully in to the operating quadrant as
shown in Figure 7. Three positions are provided to enable the
operator to choose the best ergonomic position.
The jack ram is raised on each downward stroke of the lever.
The operating lever should be used in a steady controlled
movement at a maximum of 30 strokes per minute.
When the full extension has been achieved a positive stop is
engaged; further pumping will only circulate oil within the
jack. This circulation will be apparent to the operator because

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increased effort is necessary to move the operating lever. Do
not continue pumping after this has been reached.
Figure 7 - Inserting the Operating Lever
The table below show the maximum effort required to
operate the jack when loaded to the maximum rated load.
Jack Range
Max. Effort (kg)
Max. Effort (N)
20 Tonne
54
530
30 Tonne
52
510
40 Tonne
50
491
60 Tonne
52
510
72 Tonne
50
491
100 Tonne
79
775
Table 1 - Maximum Effort on Operating Lever
Where the generated effort to raise the loaded jack exceeds
400N, the effort shall be lowered by additional persons.

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5.4.4 Using Multiple Jacks
If using more than one jack to raise a load, all the jacks must
be able to individually raise the load e.g., two PS620 jacks
cannot be used to lift a 30T load as it impossible to pump
both jacks at exactly the same rate, or lower the jacks at
exactly the same rate. One of the jacks will end up with an
excess load and is liable to fail. In such case two PS630 jacks
should be used to raise a load of 30T.
When using multiple units to lift a load, all jacks must be
operated at the same time, so that the load is lifted evenly.
Figure 8 –Jacks Lifting Evenly

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5.5 Lowering the Jack
Do not drop loads onto the jack. If the jack is inadvertently
subjected to a shock load, remove from service and have it
checked by the manufacturer or service agent.
To lower the jack, first remove the operating lever from the
operating quadrant and place it into the release screw.
Turning this anti-clockwise will allow the ram to descend. The
amount this is rotated will control the speed of descent; only
open a very small amount (approx. 5°) at first.
Figure 9 - Closing the Release Valve Screw

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5.6 Jacks with Screwed Rams (Type S)
All models can be provided with screwed rams and locking
collars. The purpose for this is to mechanically support a load
at a required position without relying on the hydraulic circuit.
Figure 10 - Locking Collar
When the load is at the required position, rotate the locking
collar clockwise until it rests hand-tight on the top of the jack
body.
To undo –operate the jack so that the hydraulic circuit just
takes the load off the locking collar. Rotate the collar anti-
clockwise until it reaches the top of the ram.
Important Safety Note: Lifting claws must never be used
with screwed ram jacks.

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5.7 Jacks with Lifting Claws (Type C)
Claws are supplied as an accessory to provide a low height
lifting point. The recess in the head of the claw fits around the
ram top, and the heel of the claw rests against the front face
of the jack. Ensure the claw is seated properly before use and
also that the toe is as far under the load as possible.
Figure 11 - Claw Jack
The capacity of the claw is 40% of the capacity
of the jack to which it is fitted.
Jack Load (Tonnes)
20
30
40
60
Claw Load (Tonnes)
8
12
16
24
Table 2 –Claw Loads
The “Claw Load” is marked on the jack nameplate. Do not
exceed this load on the claw of the jack. If the claw is
overloaded it could snap and put the operator in danger.
Claws must only be used for vertical movements of loads.