Jacks

Find out about different types of jacks and when they are used.

Jacks that comply with the relevant Australian Standard (AS/NZS 2693) are used when it is not safe or suitable to use a crane or hoist to raise or lower a load. Follow manufacturers recommendations when using jacks.

Note: carjacks are not rated for lifting and should not be used for lifting.

Timber or other approved packing under jacks should be independent of other packers.

All jacks should be inspected before use to make sure the Working Load Limit (WLL) is matched to the task.

Types of jacks

Hydraulic jack

When using hydraulic jacks, make sure:

• there are no leaks
• there are no signs of damaged seals
• the jack is free and clear of dirt and grit.

Hydraulic jack

Test the relief valve to make sure it is operating correctly. It should be tested and operated by a competent person.

Post tension jacks

Specialised training on post tension jacks is not covered in the Rigging and Dogger curriculum. Specific competencies may need to be obtained to be deemed competent.