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3. SPECIFICATION
Model no: ............................................................YAJ20B.V3
Max. capacity: ........................................................... 20tonne
Min. height: ................................................................ 228mm
Max. height(including extension)/capacity:
Stage 1 (mm/tonne): ................................................... 548/20
Stage 2 (mm/tonne): ......................................................... n/a
Piston stroke: ............................................................. 120mm
Screw extension: ........................................................ 110mm
Extensions: ........................................................ 20/60/90mm
Chassis length: .......................................................... 575mm
Length including handle: .......................................... 1270mm
Width without wheels: ................................................ 187mm
Overall width: ............................................................. 322mm
Air consumption: ......................................................... 9.5cfm
Working pressure: ................................................ 102-145psi
Weight: ........................................................................... 43kg
4. AIR SUPPLY
4.1.
Ensure the jack pneumatic switch (or trigger) is in the "off" position before connecting to the air supply.
4.2.
You will require an air pressure of at least 102psi (max 145psi) and an air flow of 9.5cfm to get the best performance from this jack. Use a
compressor of 3HP or above.
WARNING! Ensure the air supply does not exceed 145psi while operating the jack. Too high an air pressure and unclean air will shorten
‰
the product's life owing to excessive wear, and may be dangerous causing possible damage and personal injury.
4.3.
Keep the air hose between the compressor and the air jack as short as possible, and install an air filter and oiler, see fig.1.
4.4.
Drain the air tank daily. Water in the air line will damage the jack.
4.5.
Clean the air inlet filter screen weekly.
4.6.
Line pressure should be increased to compensate for unusually long air hoses (over 8 metres). The minimum hose diameter should be
3/8" I.D. and fittings must have the same inside dimensions.
4.7.
Keep hose away from heat, oil and sharp edges. Check hoses for wear, and make certain that all connections are secure.
5. ASSEMBLY
WARNING! Ensure the jack is not connected to the air supply
‰
before performing the following:
Refer to fig.3
5.1.
Loosen the bolt on handle yoke and insert the handle assembly (1).
5.2.
Rotate the release valve knob to locate the connecting rod into the
release valve rod as shown in fig.2.
5.3.
Secure the handle assembly by tightening the bolt on the handle
yoke.
5.4.
Hook the spring on the air hose onto the bracket on the side of
the handle.
6. OPERATION
Refer to fig.3
6.1.
Preparation before use.
6.1.1.
You will require an air pressure of at least 100psi, (max 145psi)
and an air flow of 9.5cfm to operate jack.
6.1.2.
Connect the air supply hose .
6.2.
Eliminate any air in the system.
6.2.1.
Before using the jack, purge the hydraulic circuit in order to
eliminate any possible air that may have entered the system
during transit.
6.2.2.
Remove the four screws and lift off the upper cover (12).
6.2.3.
Loosen the oil filler screw (16) half a turn.
6.2.4.
Close the release valve by turning the knob clockwise.
6.2.5.
Operate the air valve (9) and repeatedly tighten and loosen the oil filler screw (16) until the piston starts to rise.
6.2.6.
Fully tighten the oil filler screw (16) and ensure that the piston can rise to its highest position.
6.2.7.
When complete, open the release valve by turning the knob anti-clockwise and lower the piston to its lowest position.
6.2.8.
Refit the upper cover (12) and secure using the four screws.
6.3.
Using the jack.
WARNING! Ensure you have read and understood the safety instructions in chapter 1 before commencing work.
‰
6.3.1.
Lift the lock lever, position the handle as required and release the lock lever.
6.3.2.
Position the Jack under the vehicle manufacturer's recommended jacking point (see vehicle hand book).
6.3.3.
To raise the jack up, remove the air valve (9) from the handle and press the air valve lever (9).
6.3.4.
When the vehicle has reached the desired height release the lever (10-8) which will stop further air flow and hold the jack at the height
to which it has been raised.
6.3.5.
Place axle stands correctly in position and ensure chapter 1 safety instructions are strictly applied before performing any task.
6.4.
Lowering the jack.
6.4.1.
Ensure there are no persons or obstruction beneath the vehicle before lowering, and remove any axle stands.
6.4.2.
To lower the jack, slowly turn the release valve knob anti-clockwise and the jack will lower in a controlled manner.
© Jack Sealey Limited
Fig.1
Original Language Version
Fig.2
Fig.3
YAJ20B.V3
Issue 3(S) - 21/06/17
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