2
POWERTEX Hydraulic Toe Jack PTJ-S1
Instruction for use (GB) (Original instructions)
Read through these user instructions carefully before using the jack. Improper selection or operation may lead to hazardous situations!
Product description
This hydraulic jack is intended to lift objects temporarily and not for long term hold.
It is intended to perform lifting operation using the top plate or the lifting toe.
Standard applied:
EN 1494
Proof load testing:
Each jack has been tested 1 x WLL at the factory prior delivery.
Temperature range:
-20°C up to +50°C.
Data
Model
WLL
Lifting height
Min./max. height toe
Min./max. height top
Max. force on handle
Weight
ton
mm
mm
mm
N
(kg)
PTJ-S1/5000KG
5
205
25/230
368/573
380
25
PTJ-S1/10000KG
10
230
30/260
420/650
400
35
PTJ-S1/25000KG
25
215
58/273
505/720
400
102
Assembly
The only assembly needed is to insert the operating handle (02) into the socket (04) and screw it tightly in clockwise direction.
General instructions for safe work with PTJ jack
Before operation, the operator should check and confirm that the jack is in good state.
The object to be lifted needs to be secured by jack stands as soon as the object reached the desired lifting
height. When using this jack, it shall be placed on a fixed and solid surface, such as reinforced concrete floor.
Padding could be used under the jack’s base to spread the load to a larger area. For the PTJ jack to descend
completely the lifting toe must be oriented so that it fit the opening of the base (Fig. 1).
• Lifting is a dangerous operation, so the appointed operators should be trained and experienced.
• To avoid accidents, extra weight must not be added to the lifted load.
• Never exceed the maximum capacity of the jack.
• Never adjust the safety valve (18), it has been set at the factory to prevent overloading. Components 10, 11, 18, 19, 20, 21
are all part of the overload protection.
• Keep a safe distance to the lifted load.
• Never use the jack if any defects, malfunction, or modifications can be detected.
• Make sure that the supporting ground is solid and stable.
• Lifting operation is allowed on plane surfaces only.
• Make sure that the lifted load is stable during the whole lifting process to avoid over turnings and accidents.
• Never allow people to stand on the lifted load.
• No one should be allowed under the lifted load until it has been secured with stable jack stands
• When lifting with the toe the load shall be on the full toe area and as close to the cylinder as possible.
• Never lift on the edge of jack’s head (Fig. 2). The load shall always be centered to the jack’s centerline
• Operators should be careful when using multiple jacks to lift a heavy load and such operations should be carefully planned and supervised by an
experienced lifting engineer. One need to pay attention to the shifting of center of gravity during lifting or lowering the load. There is also risk that
one or several jacks become overloaded while another become unloaded. The total lifting capacity of all jacks must be larger than the weight of
the lifted load.
Lifting
Place the jack so that the load will be close to the toe plate or the top plate.
Rotate the unload handle (16) tightly in clockwise direction before lifting to close the valve.
Then operate the pump handle (02) repeatedly to pump up the pressure needed to lift the load. The lifting movement will stop immediately when
the pump operation is halted.
Lowering
Rotate the unload handle (16) slowly in anti-clockwise direction to descend the load. If tightening the unload handle again, the descend movement
will be stopped.
When the jack is in unloaded condition, the top should be pressed down by hand to retract the jack completely. The only part
allowed to be removed after use is the pump handle (2).
Maintenance
Daily inspection
Before each operation, inspect and confirm that:
All the stoppers and screws are tightened and no parts or labels are missing.
There is no oil leaking from the jack.
There is no cracks, damages, or deformation on the pump body, toe plate or base.
The pump should operate normally when tested without load.
Fig. 2
objects
Fig. 1
